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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.camera;
import com.android.camera.ui.CameraHeadUpDisplay;
import com.android.camera.ui.CameraPicker;
import com.android.camera.ui.FocusRectangle;
import com.android.camera.ui.GLRootView;
import com.android.camera.ui.HeadUpDisplay;
import com.android.camera.ui.IndicatorWheel;
import com.android.camera.ui.ZoomControllerListener;
import com.android.camera.ui.ZoomPicker;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.BroadcastReceiver;
import android.content.ContentProviderClient;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences.Editor;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.hardware.Camera.CameraInfo;
import android.hardware.Camera.Parameters;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.Size;
import android.location.Location;
import android.location.LocationManager;
import android.location.LocationProvider;
import android.media.AudioManager;
import android.media.ToneGenerator;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.os.MessageQueue;
import android.os.SystemClock;
import android.provider.MediaStore;
import android.provider.Settings;
import android.provider.MediaStore.Images.ImageColumns;
import android.provider.MediaStore.Images.Media;
import android.util.Log;
import android.view.GestureDetector;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.OrientationEventListener;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewStub;
import android.view.Window;
import android.view.WindowManager;
import android.view.MenuItem.OnMenuItemClickListener;
import android.widget.Button;
import android.widget.Toast;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
/** The Camera activity which can preview and take pictures. */
public class Camera extends ActivityBase implements View.OnClickListener,
ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback,
Switcher.OnSwitchListener {
private static final String TAG = "camera";
private static final String LAST_THUMB_PATH =
Storage.THUMBNAILS + "/image_last_thumb";
private static final int CROP_MSG = 1;
private static final int FIRST_TIME_INIT = 2;
private static final int RESTART_PREVIEW = 3;
private static final int CLEAR_SCREEN_DELAY = 4;
private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 5;
private static final int CHECK_DISPLAY_ROTATION = 6;
// The subset of parameters we need to update in setCameraParameters().
private static final int UPDATE_PARAM_INITIALIZE = 1;
private static final int UPDATE_PARAM_ZOOM = 2;
private static final int UPDATE_PARAM_PREFERENCE = 4;
private static final int UPDATE_PARAM_ALL = -1;
// When setCameraParametersWhenIdle() is called, we accumulate the subsets
// needed to be updated in mUpdateSet.
private int mUpdateSet;
// The brightness settings used when it is set to automatic in the system.
// The reason why it is set to 0.7 is just because 1.0 is too bright.
private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f;
private static final int SCREEN_DELAY = 2 * 60 * 1000;
private static final int FOCUS_BEEP_VOLUME = 100;
private static final int ZOOM_STOPPED = 0;
private static final int ZOOM_START = 1;
private static final int ZOOM_STOPPING = 2;
private int mZoomState = ZOOM_STOPPED;
private boolean mSmoothZoomSupported = false;
private int mZoomValue; // The current zoom value.
private int mZoomMax;
private int mTargetZoomValue;
private ZoomPicker mZoomPicker;
private Parameters mParameters;
private Parameters mInitialParams;
private MyOrientationEventListener mOrientationListener;
// The device orientation in degrees. Default is unknown.
private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN;
// The orientation compensation for icons and thumbnails.
private int mOrientationCompensation = 0;
private ComboPreferences mPreferences;
private static final int IDLE = 1;
private static final int SNAPSHOT_IN_PROGRESS = 2;
private static final boolean SWITCH_CAMERA = true;
private static final boolean SWITCH_VIDEO = false;
private int mStatus = IDLE;
private static final String sTempCropFilename = "crop-temp";
private android.hardware.Camera mCameraDevice;
private ContentProviderClient mMediaProviderClient;
private SurfaceView mSurfaceView;
private SurfaceHolder mSurfaceHolder = null;
private ShutterButton mShutterButton;
private FocusRectangle mFocusRectangle;
private ToneGenerator mFocusToneGenerator;
private GestureDetector mPopupGestureDetector;
private SwitcherSet mSwitcher;
private boolean mStartPreviewFail = false;
private GLRootView mGLRootView;
// The last captured picture.
private RotateImageView mThumbnailButton;
// mCropValue and mSaveUri are used only if isImageCaptureIntent() is true.
private String mCropValue;
private Uri mSaveUri;
// GPS on-screen indicator
private View mGpsNoSignalView;
private View mGpsHasSignalView;
// Front/Back camera pciker for xlarge layout
private CameraPicker mCameraPicker;
/**
* An unpublished intent flag requesting to return as soon as capturing
* is completed.
*
* TODO: consider publishing by moving into MediaStore.
*/
private final static String EXTRA_QUICK_CAPTURE =
"android.intent.extra.quickCapture";
private boolean mPreviewing;
// The display rotation in degrees. This is only valid when mPreviewing is
// true.
private int mDisplayRotation;
private boolean mPausing;
private boolean mFirstTimeInitialized;
private boolean mIsImageCaptureIntent;
private boolean mRecordLocation;
private static final int FOCUS_NOT_STARTED = 0;
private static final int FOCUSING = 1;
private static final int FOCUSING_SNAP_ON_FINISH = 2;
private static final int FOCUS_SUCCESS = 3;
private static final int FOCUS_FAIL = 4;
private int mFocusState = FOCUS_NOT_STARTED;
private ContentResolver mContentResolver;
private boolean mDidRegister = false;
private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>();
private LocationManager mLocationManager = null;
private final ShutterCallback mShutterCallback = new ShutterCallback();
private final PostViewPictureCallback mPostViewPictureCallback =
new PostViewPictureCallback();
private final RawPictureCallback mRawPictureCallback =
new RawPictureCallback();
private final AutoFocusCallback mAutoFocusCallback =
new AutoFocusCallback();
private final ZoomListener mZoomListener = new ZoomListener();
private final CameraErrorCallback mErrorCallback = new CameraErrorCallback();
private long mFocusStartTime;
private long mFocusCallbackTime;
private long mCaptureStartTime;
private long mShutterCallbackTime;
private long mPostViewPictureCallbackTime;
private long mRawPictureCallbackTime;
private long mJpegPictureCallbackTime;
private long mOnResumeTime;
private long mPicturesRemaining;
private byte[] mJpegImageData;
// These latency time are for the CameraLatency test.
public long mAutoFocusTime;
public long mShutterLag;
public long mShutterToPictureDisplayedTime;
public long mPictureDisplayedToJpegCallbackTime;
public long mJpegCallbackFinishTime;
// Focus mode. Options are pref_camera_focusmode_entryvalues.
private String mFocusMode;
private String mSceneMode;
private Toast mNotSelectableToast;
private final Handler mHandler = new MainHandler();
// xlarge devices use indicator wheel. Other devices use head-up display.
private CameraHeadUpDisplay mHeadUpDisplay;
private IndicatorWheel mIndicatorWheel;
private PreferenceGroup mPreferenceGroup;
// multiple cameras support
private int mNumberOfCameras;
private int mCameraId;
private int mFrontCameraId;
private int mBackCameraId;
private boolean mQuickCapture;
/**
* This Handler is used to post message back onto the main thread of the
* application
*/
private class MainHandler extends Handler {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case RESTART_PREVIEW: {
restartPreview();
if (mJpegPictureCallbackTime != 0) {
long now = System.currentTimeMillis();
mJpegCallbackFinishTime = now - mJpegPictureCallbackTime;
Log.v(TAG, "mJpegCallbackFinishTime = "
+ mJpegCallbackFinishTime + "ms");
mJpegPictureCallbackTime = 0;
}
break;
}
case CLEAR_SCREEN_DELAY: {
getWindow().clearFlags(
WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
break;
}
case FIRST_TIME_INIT: {
initializeFirstTime();
break;
}
case SET_CAMERA_PARAMETERS_WHEN_IDLE: {
setCameraParametersWhenIdle(0);
break;
}
case CHECK_DISPLAY_ROTATION: {
// Restart the preview if display rotation has changed.
// Sometimes this happens when the device is held upside
// down and camera app is opened. Rotation animation will
// take some time and the rotation value we have got may be
// wrong. Framework does not have a callback for this now.
if (Util.getDisplayRotation(Camera.this) != mDisplayRotation
&& isCameraIdle()) {
restartPreview();
}
if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) {
mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100);
}
break;
}
}
}
}
private void resetExposureCompensation() {
String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE,
CameraSettings.EXPOSURE_DEFAULT_VALUE);
if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) {
Editor editor = mPreferences.edit();
editor.putString(CameraSettings.KEY_EXPOSURE, "0");
editor.apply();
if (mHeadUpDisplay != null) {
mHeadUpDisplay.reloadPreferences();
}
if (mIndicatorWheel != null) {
mIndicatorWheel.reloadPreferences();
}
}
}
private void keepMediaProviderInstance() {
// We want to keep a reference to MediaProvider in camera's lifecycle.
// TODO: Utilize mMediaProviderClient instance to replace
// ContentResolver calls.
if (mMediaProviderClient == null) {
mMediaProviderClient = getContentResolver()
.acquireContentProviderClient(MediaStore.AUTHORITY);
}
}
// Snapshots can only be taken after this is called. It should be called
// once only. We could have done these things in onCreate() but we want to
// make preview screen appear as soon as possible.
private void initializeFirstTime() {
if (mFirstTimeInitialized) return;
// Create orientation listenter. This should be done first because it
// takes some time to get first orientation.
mOrientationListener = new MyOrientationEventListener(Camera.this);
mOrientationListener.enable();
// Initialize location sevice.
mLocationManager = (LocationManager)
getSystemService(Context.LOCATION_SERVICE);
mRecordLocation = RecordLocationPreference.get(
mPreferences, getContentResolver());
initGpsOnScreenIndicator();
if (mRecordLocation) startReceivingLocationUpdates();
keepMediaProviderInstance();
checkStorage();
// Initialize last picture button.
mContentResolver = getContentResolver();
if (!mIsImageCaptureIntent) {
findViewById(R.id.camera_switch).setOnClickListener(this);
initThumbnailButton();
}
// Initialize shutter button.
mShutterButton = (ShutterButton) findViewById(R.id.shutter_button);
mShutterButton.setOnShutterButtonListener(this);
mShutterButton.setVisibility(View.VISIBLE);
mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle);
updateFocusIndicator();
initializeScreenBrightness();
installIntentFilter();
initializeFocusTone();
initializeZoom();
// xlarge devices use indicator wheel. Other devices use head-up display.
if (mIndicatorWheel == null) {
mHeadUpDisplay = new CameraHeadUpDisplay(this);
mHeadUpDisplay.setListener(new MyHeadUpDisplayListener());
initializeHeadUpDisplay();
}
mFirstTimeInitialized = true;
changeHeadUpDisplayState();
addIdleHandler();
}
private void addIdleHandler() {
MessageQueue queue = Looper.myQueue();
queue.addIdleHandler(new MessageQueue.IdleHandler() {
public boolean queueIdle() {
Storage.ensureOSXCompatible();
return false;
}
});
}
private void initThumbnailButton() {
mThumbnailButton =
(RotateImageView) findViewById(R.id.review_thumbnail);
if (mThumbnailButton != null) {
mThumbnailButton.setOnClickListener(this);
mThumbnailButton.loadData(LAST_THUMB_PATH);
updateThumbnailButton();
}
}
private void updateThumbnailButton() {
if (mThumbnailButton == null) return;
// Update last image if URI is invalid and the storage is ready.
if (!mThumbnailButton.isUriValid() && mPicturesRemaining >= 0) {
Storage.Thumbnail thumbnail =
Storage.getLastImageThumbnail(mContentResolver);
if (thumbnail != null) {
mThumbnailButton.setData(thumbnail.getOriginalUri(),
thumbnail.getBitmap(mContentResolver));
} else {
mThumbnailButton.setData(null, null);
}
}
mThumbnailButton.setVisibility(
(mThumbnailButton.getUri() != null) ? View.VISIBLE : View.GONE);
}
// If the activity is paused and resumed, this method will be called in
// onResume.
private void initializeSecondTime() {
// Start orientation listener as soon as possible because it takes
// some time to get first orientation.
mOrientationListener.enable();
// Start location update if needed.
mRecordLocation = RecordLocationPreference.get(
mPreferences, getContentResolver());
if (mRecordLocation) startReceivingLocationUpdates();
installIntentFilter();
initializeFocusTone();
initializeZoom();
changeHeadUpDisplayState();
keepMediaProviderInstance();
checkStorage();
if (!mIsImageCaptureIntent) {
updateThumbnailButton();
}
}
private void initializeZoom() {
if (!mParameters.isZoomSupported()) return;
mZoomMax = mParameters.getMaxZoom();
mSmoothZoomSupported = mParameters.isSmoothZoomSupported();
if (mZoomPicker != null) {
mZoomPicker.setZoomRatios(getZoomRatios());
mZoomPicker.setZoomIndex(mParameters.getZoom());
mZoomPicker.setSmoothZoomSupported(mSmoothZoomSupported);
mZoomPicker.setOnZoomChangeListener(
new ZoomPicker.OnZoomChangedListener() {
// only for immediate zoom
public void onZoomValueChanged(int index) {
Camera.this.onZoomValueChanged(index);
}
// only for smooth zoom
public void onZoomStateChanged(int state) {
if (mPausing) return;
Log.v(TAG, "zoom picker state=" + state);
if (state == mZoomPicker.ZOOM_IN) {
Camera.this.onZoomValueChanged(mZoomMax);
} else if (state == mZoomPicker.ZOOM_OUT){
Camera.this.onZoomValueChanged(0);
} else {
mTargetZoomValue = -1;
if (mZoomState == ZOOM_START) {
mZoomState = ZOOM_STOPPING;
mCameraDevice.stopSmoothZoom();
}
}
}
});
}
mCameraDevice.setZoomChangeListener(mZoomListener);
}
private void onZoomValueChanged(int index) {
// Not useful to change zoom value when the activity is paused.
if (mPausing) return;
if (mSmoothZoomSupported) {
if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) {
mTargetZoomValue = index;
if (mZoomState == ZOOM_START) {
mZoomState = ZOOM_STOPPING;
mCameraDevice.stopSmoothZoom();
}
} else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) {
mTargetZoomValue = index;
mCameraDevice.startSmoothZoom(index);
mZoomState = ZOOM_START;
}
} else {
mZoomValue = index;
setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM);
}
}
private float[] getZoomRatios() {
if(!mParameters.isZoomSupported()) return null;
List<Integer> zoomRatios = mParameters.getZoomRatios();
float result[] = new float[zoomRatios.size()];
for (int i = 0, n = result.length; i < n; ++i) {
result[i] = (float) zoomRatios.get(i) / 100f;
}
return result;
}
private int mLocation[] = new int[2];
private class PopupGestureListener extends
GestureDetector.SimpleOnGestureListener {
public boolean onDown(MotionEvent e) {
// Check if the popup window is visible.
View v = mIndicatorWheel.getActivePopupWindow();
if (v == null) return false;
int x = Math.round(e.getX());
int y = Math.round(e.getY());
// Dismiss the popup window if users touch on the outside.
v.getLocationOnScreen(mLocation);
if (x < mLocation[0] || (x > mLocation[0] + v.getWidth())
|| y < mLocation[1] || (y > mLocation[1] + v.getHeight())) {
// Let indicator wheel handle its own event.
mIndicatorWheel.getLocationOnScreen(mLocation);
if (x < mLocation[0] || (x > mLocation[0] + mIndicatorWheel.getWidth())
|| y < mLocation[1] || (y > mLocation[1] + mIndicatorWheel.getHeight())) {
mIndicatorWheel.dismissSettingPopup();
}
// Let event fall through.
}
return false;
}
}
@Override
public boolean dispatchTouchEvent(MotionEvent m) {
// Check if the popup window should be dismissed first.
if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) {
return true;
}
return super.dispatchTouchEvent(m);
}
LocationListener [] mLocationListeners = new LocationListener[] {
new LocationListener(LocationManager.GPS_PROVIDER),
new LocationListener(LocationManager.NETWORK_PROVIDER)
};
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(Intent.ACTION_MEDIA_MOUNTED)
|| action.equals(Intent.ACTION_MEDIA_UNMOUNTED)
|| action.equals(Intent.ACTION_MEDIA_CHECKING)) {
checkStorage();
} else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) {
checkStorage();
if (!mIsImageCaptureIntent) {
updateThumbnailButton();
}
}
}
};
private void initializeCameraPicker() {
mCameraPicker = (CameraPicker) findViewById(R.id.camera_picker);
if (mCameraPicker != null) {
mCameraPicker.setImageResource(R.drawable.camera_toggle);
ListPreference pref = mPreferenceGroup.findPreference(
CameraSettings.KEY_CAMERA_ID);
if (pref != null) {
mCameraPicker.initialize(pref);
mCameraPicker.setListener(new MyCameraPickerListener());
}
}
}
private void initGpsOnScreenIndicator() {
mGpsNoSignalView = findViewById(R.id.onscreen_gps_indicator_no_signal);
mGpsHasSignalView = findViewById(R.id.onscreen_gps_indicator_on);
}
private void showGpsOnScreenIndicator(boolean hasSignal) {
if (hasSignal) {
if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE);
if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.VISIBLE);
} else {
if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.VISIBLE);
if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE);
}
}
private void hideGpsOnScreenIndicator() {
if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE);
if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE);
}
private class LocationListener
implements android.location.LocationListener {
Location mLastLocation;
boolean mValid = false;
String mProvider;
public LocationListener(String provider) {
mProvider = provider;
mLastLocation = new Location(mProvider);
}
public void onLocationChanged(Location newLocation) {
if (newLocation.getLatitude() == 0.0
&& newLocation.getLongitude() == 0.0) {
// Hack to filter out 0.0,0.0 locations
return;
}
// If GPS is available before start camera, we won't get status
// update so update GPS indicator when we receive data.
if (mRecordLocation
&& LocationManager.GPS_PROVIDER.equals(mProvider)) {
if (mHeadUpDisplay != null) {
mHeadUpDisplay.setGpsHasSignal(true);
}
showGpsOnScreenIndicator(true);
}
if (!mValid) {
Log.d(TAG, "Got first location.");
}
mLastLocation.set(newLocation);
mValid = true;
}
public void onProviderEnabled(String provider) {
}
public void onProviderDisabled(String provider) {
mValid = false;
}
public void onStatusChanged(
String provider, int status, Bundle extras) {
switch(status) {
case LocationProvider.OUT_OF_SERVICE:
case LocationProvider.TEMPORARILY_UNAVAILABLE: {
mValid = false;
if (mRecordLocation &&
LocationManager.GPS_PROVIDER.equals(provider)) {
if (mHeadUpDisplay != null) {
mHeadUpDisplay.setGpsHasSignal(false);
}
showGpsOnScreenIndicator(false);
}
break;
}
}
}
public Location current() {
return mValid ? mLastLocation : null;
}
}
private final class ShutterCallback
implements android.hardware.Camera.ShutterCallback {
public void onShutter() {
mShutterCallbackTime = System.currentTimeMillis();
mShutterLag = mShutterCallbackTime - mCaptureStartTime;
Log.v(TAG, "mShutterLag = " + mShutterLag + "ms");
clearFocusState();
}
}
private final class PostViewPictureCallback implements PictureCallback {
public void onPictureTaken(
byte [] data, android.hardware.Camera camera) {
mPostViewPictureCallbackTime = System.currentTimeMillis();
Log.v(TAG, "mShutterToPostViewCallbackTime = "
+ (mPostViewPictureCallbackTime - mShutterCallbackTime)
+ "ms");
}
}
private final class RawPictureCallback implements PictureCallback {
public void onPictureTaken(
byte [] rawData, android.hardware.Camera camera) {
mRawPictureCallbackTime = System.currentTimeMillis();
Log.v(TAG, "mShutterToRawCallbackTime = "
+ (mRawPictureCallbackTime - mShutterCallbackTime) + "ms");
}
}
private final class JpegPictureCallback implements PictureCallback {
Location mLocation;
public JpegPictureCallback(Location loc) {
mLocation = loc;
}
public void onPictureTaken(
final byte [] jpegData, final android.hardware.Camera camera) {
if (mPausing) {
return;
}
mJpegPictureCallbackTime = System.currentTimeMillis();
// If postview callback has arrived, the captured image is displayed
// in postview callback. If not, the captured image is displayed in
// raw picture callback.
if (mPostViewPictureCallbackTime != 0) {
mShutterToPictureDisplayedTime =
mPostViewPictureCallbackTime - mShutterCallbackTime;
mPictureDisplayedToJpegCallbackTime =
mJpegPictureCallbackTime - mPostViewPictureCallbackTime;
} else {
mShutterToPictureDisplayedTime =
mRawPictureCallbackTime - mShutterCallbackTime;
mPictureDisplayedToJpegCallbackTime =
mJpegPictureCallbackTime - mRawPictureCallbackTime;
}
Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = "
+ mPictureDisplayedToJpegCallbackTime + "ms");
if (!mIsImageCaptureIntent) {
enableCameraControls(true);
// We want to show the taken picture for a while, so we wait
// for at least 1.2 second before restarting the preview.
long delay = 1200 - mPictureDisplayedToJpegCallbackTime;
if (delay < 0) {
restartPreview();
} else {
mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay);
}
}
storeImage(jpegData, camera, mLocation);
// Check this in advance of each shot so we don't add to shutter
// latency. It's true that someone else could write to the SD card in
// the mean time and fill it, but that could have happened between the
// shutter press and saving the JPEG too.
checkStorage();
if (!mHandler.hasMessages(RESTART_PREVIEW)) {
long now = System.currentTimeMillis();
mJpegCallbackFinishTime = now - mJpegPictureCallbackTime;
Log.v(TAG, "mJpegCallbackFinishTime = "
+ mJpegCallbackFinishTime + "ms");
mJpegPictureCallbackTime = 0;
}
}
}
private final class AutoFocusCallback
implements android.hardware.Camera.AutoFocusCallback {
public void onAutoFocus(
boolean focused, android.hardware.Camera camera) {
mFocusCallbackTime = System.currentTimeMillis();
mAutoFocusTime = mFocusCallbackTime - mFocusStartTime;
Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms");
if (mFocusState == FOCUSING_SNAP_ON_FINISH) {
// Take the picture no matter focus succeeds or fails. No need
// to play the AF sound if we're about to play the shutter
// sound.
if (focused) {
mFocusState = FOCUS_SUCCESS;
} else {
mFocusState = FOCUS_FAIL;
}
capture();
} else if (mFocusState == FOCUSING) {
// User is half-pressing the focus key. Play the focus tone.
// Do not take the picture now.
if (focused) {
mFocusState = FOCUS_SUCCESS;
if (mFocusToneGenerator != null) {
mFocusToneGenerator.startTone(ToneGenerator.TONE_PROP_BEEP2);
}
} else {
mFocusState = FOCUS_FAIL;
}
} else if (mFocusState == FOCUS_NOT_STARTED) {
// User has released the focus key before focus completes.
// Do nothing.
}
updateFocusIndicator();
}
}
private final class ZoomListener
implements android.hardware.Camera.OnZoomChangeListener {
public void onZoomChange(
int value, boolean stopped, android.hardware.Camera camera) {
Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped);
mZoomValue = value;
// Update the UI when we get zoom value.
if (mZoomPicker != null) mZoomPicker.setZoomIndex(value);
// Keep mParameters up to date. We do not getParameter again in
// takePicture. If we do not do this, wrong zoom value will be set.
mParameters.setZoom(value);
if (stopped && mZoomState != ZOOM_STOPPED) {
if (mTargetZoomValue != -1 && value != mTargetZoomValue) {
mCameraDevice.startSmoothZoom(mTargetZoomValue);
mZoomState = ZOOM_START;
} else {
mZoomState = ZOOM_STOPPED;
}
}
}
}
public void storeImage(final byte[] data,
android.hardware.Camera camera, Location loc) {
if (!mIsImageCaptureIntent) {
long dateTaken = System.currentTimeMillis();
String title = createName(dateTaken);
Storage.Thumbnail thumbnail = Storage.addImage(
mContentResolver, title, dateTaken, loc, data);
if (thumbnail != null && mThumbnailButton != null) {
mThumbnailButton.setData(thumbnail.getOriginalUri(),
thumbnail.getBitmap(mContentResolver));
mThumbnailButton.setVisibility(View.VISIBLE);
sendBroadcast(new Intent("com.android.camera.NEW_PICTURE",
thumbnail.getOriginalUri()));
}
} else {
mJpegImageData = data;
if (!mQuickCapture) {
showPostCaptureAlert();
} else {
doAttach();
}
}
}
private void capture() {
// If we are already in the middle of taking a snapshot then ignore.
if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) {
return;
}
mCaptureStartTime = System.currentTimeMillis();
mPostViewPictureCallbackTime = 0;
enableCameraControls(false);
mStatus = SNAPSHOT_IN_PROGRESS;
mJpegImageData = null;
// See android.hardware.Camera.Parameters.setRotation for
// documentation.
int rotation = 0;
if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) {
CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId];
if (info.facing == CameraInfo.CAMERA_FACING_FRONT) {
rotation = (info.orientation - mOrientation + 360) % 360;
} else { // back-facing camera
rotation = (info.orientation + mOrientation) % 360;
}
}
mParameters.setRotation(rotation);
// Clear previous GPS location from the parameters.
mParameters.removeGpsData();
// We always encode GpsTimeStamp
mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000);
// Set GPS location.
Location loc = mRecordLocation ? getCurrentLocation() : null;
if (loc != null) {
double lat = loc.getLatitude();
double lon = loc.getLongitude();
boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d);
if (hasLatLon) {
Log.d(TAG, "Set gps location");
mParameters.setGpsLatitude(lat);
mParameters.setGpsLongitude(lon);
mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase());
if (loc.hasAltitude()) {
mParameters.setGpsAltitude(loc.getAltitude());
} else {
// for NETWORK_PROVIDER location provider, we may have
// no altitude information, but the driver needs it, so
// we fake one.
mParameters.setGpsAltitude(0);
}
if (loc.getTime() != 0) {
// Location.getTime() is UTC in milliseconds.
// gps-timestamp is UTC in seconds.
long utcTimeSeconds = loc.getTime() / 1000;
mParameters.setGpsTimestamp(utcTimeSeconds);
}
} else {
loc = null;
}
}
mCameraDevice.setParameters(mParameters);
mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback,
mPostViewPictureCallback, new JpegPictureCallback(loc));
mPreviewing = false;
}
private boolean saveDataToFile(String filePath, byte[] data) {
FileOutputStream f = null;
try {
f = new FileOutputStream(filePath);
f.write(data);
} catch (IOException e) {
return false;
} finally {
Util.closeSilently(f);
}
return true;
}
private String createName(long dateTaken) {
Date date = new Date(dateTaken);
SimpleDateFormat dateFormat = new SimpleDateFormat(
getString(R.string.image_file_name_format));
return dateFormat.format(date);
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
mIsImageCaptureIntent = isImageCaptureIntent();
if (mIsImageCaptureIntent) {
setContentView(R.layout.camera_attach);
} else {
setContentView(R.layout.camera);
}
mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview);
mPreferences = new ComboPreferences(this);
CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal());
mCameraId = CameraSettings.readPreferredCameraId(mPreferences);
//Testing purpose. Launch a specific camera through the intent extras.
int intentCameraId = Util.getCameraFacingIntentExtras(this);
if (intentCameraId != -1) {
mCameraId = intentCameraId;
}
mPreferences.setLocalId(this, mCameraId);
CameraSettings.upgradeLocalPreferences(mPreferences.getLocal());
mNumberOfCameras = CameraHolder.instance().getNumberOfCameras();
mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false);
// we need to reset exposure for the preview
resetExposureCompensation();
/*
* To reduce startup time, we start the preview in another thread.
* We make sure the preview is started at the end of onCreate.
*/
Thread startPreviewThread = new Thread(new Runnable() {
public void run() {
try {
mStartPreviewFail = false;
startPreview();
} catch (CameraHardwareException e) {
// In eng build, we throw the exception so that test tool
// can detect it and report it
if ("eng".equals(Build.TYPE)) {
throw new RuntimeException(e);
}
mStartPreviewFail = true;
}
}
});
startPreviewThread.start();
// don't set mSurfaceHolder here. We have it set ONLY within
// surfaceChanged / surfaceDestroyed, other parts of the code
// assume that when it is set, the surface is also set.
SurfaceHolder holder = mSurfaceView.getHolder();
holder.addCallback(this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
if (mIsImageCaptureIntent) {
setupCaptureParams();
View reviewControl = findViewById(R.id.review_control);
reviewControl.setVisibility(View.VISIBLE);
reviewControl.findViewById(R.id.btn_cancel).setOnClickListener(this);
reviewControl.findViewById(R.id.btn_retake).setOnClickListener(this);
reviewControl.findViewById(R.id.btn_done).setOnClickListener(this);
} else {
mSwitcher = (SwitcherSet) findViewById(R.id.camera_switch);
mSwitcher.setVisibility(View.VISIBLE);
mSwitcher.setOnSwitchListener(this);
}
// Make sure preview is started.
try {
startPreviewThread.join();
if (mStartPreviewFail) {
showCameraErrorAndFinish();
return;
}
} catch (InterruptedException ex) {
// ignore
}
mBackCameraId = CameraHolder.instance().getBackCameraId();
mFrontCameraId = CameraHolder.instance().getFrontCameraId();
// Do this after starting preview because it depends on camera
// parameters.
initializeIndicatorWheel();
initializeCameraPicker();
mZoomPicker = (ZoomPicker) findViewById(R.id.zoom_picker);
if (mZoomPicker != null) mZoomPicker.setEnabled(true); // disabled initially in xml
}
private void changeHeadUpDisplayState() {
if (mHeadUpDisplay == null) return;
// If the camera resumes behind the lock screen, the orientation
// will be portrait. That causes OOM when we try to allocation GPU
// memory for the GLSurfaceView again when the orientation changes. So,
// we delayed initialization of HeadUpDisplay until the orientation
// becomes landscape.
Configuration config = getResources().getConfiguration();
if (config.orientation == Configuration.ORIENTATION_LANDSCAPE
&& !mPausing && mFirstTimeInitialized) {
if (mGLRootView == null) attachHeadUpDisplay();
} else if (mGLRootView != null) {
detachHeadUpDisplay();
}
}
private void overrideCameraSettings(final String flashMode,
final String whiteBalance, final String focusMode) {
if (mHeadUpDisplay != null) {
mHeadUpDisplay.overrideSettings(
CameraSettings.KEY_FLASH_MODE, flashMode,
CameraSettings.KEY_WHITE_BALANCE, whiteBalance,
CameraSettings.KEY_FOCUS_MODE, focusMode);
}
if (mIndicatorWheel != null) {
mIndicatorWheel.overrideSettings(
CameraSettings.KEY_FLASH_MODE, flashMode,
CameraSettings.KEY_WHITE_BALANCE, whiteBalance,
CameraSettings.KEY_FOCUS_MODE, focusMode);
}
}
private void updateSceneModeUI() {
// If scene mode is set, we cannot set flash mode, white balance, and
// focus mode, instead, we read it from driver
if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) {
overrideCameraSettings(mParameters.getFlashMode(),
mParameters.getWhiteBalance(), mParameters.getFocusMode());
} else {
overrideCameraSettings(null, null, null);
}
}
private void loadCameraPreferences() {
CameraSettings settings = new CameraSettings(this, mInitialParams,
mCameraId, CameraHolder.instance().getCameraInfo());
mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences);
}
private void initializeIndicatorWheel() {
mIndicatorWheel = (IndicatorWheel) findViewById(R.id.indicator_wheel);
if (mIndicatorWheel == null) return;
loadCameraPreferences();
String[] keys = new String[]{CameraSettings.KEY_FLASH_MODE,
CameraSettings.KEY_WHITE_BALANCE,
CameraSettings.KEY_COLOR_EFFECT,
CameraSettings.KEY_SCENE_MODE};
mIndicatorWheel.initialize(this, mPreferenceGroup, keys, true);
mIndicatorWheel.setListener(new MyIndicatorWheelListener());
mPopupGestureDetector = new GestureDetector(this,
new PopupGestureListener());
updateSceneModeUI();
}
private void initializeHeadUpDisplay() {
if (mHeadUpDisplay == null) return;
loadCameraPreferences();
// If we have zoom picker, do not show zoom control on head-up display.
float[] zoomRatios = null;
if (mZoomPicker == null) zoomRatios = getZoomRatios();
mHeadUpDisplay.initialize(this, mPreferenceGroup,
zoomRatios, mOrientationCompensation);
if (mZoomPicker == null && mParameters.isZoomSupported()) {
mHeadUpDisplay.setZoomListener(new ZoomControllerListener() {
public void onZoomChanged(
int index, float ratio, boolean isMoving) {
onZoomValueChanged(index);
}
});
}
updateSceneModeUI();
}
private void attachHeadUpDisplay() {
mHeadUpDisplay.setOrientation(mOrientationCompensation);
if (mParameters.isZoomSupported()) {
mHeadUpDisplay.setZoomIndex(mZoomValue);
}
ViewGroup frame = (ViewGroup) findViewById(R.id.frame);
mGLRootView = new GLRootView(this);
mGLRootView.setContentPane(mHeadUpDisplay);
frame.addView(mGLRootView);
}
private void detachHeadUpDisplay() {
mHeadUpDisplay.setGpsHasSignal(false);
mHeadUpDisplay.collapse();
((ViewGroup) mGLRootView.getParent()).removeView(mGLRootView);
mGLRootView = null;
}
private boolean collapseCameraControls() {
if (mHeadUpDisplay != null && mHeadUpDisplay.collapse()) {
return true;
}
if (mIndicatorWheel != null && mIndicatorWheel.dismissSettingPopup()) {
return true;
}
return false;
}
private void enableCameraControls(boolean enable) {
if (mHeadUpDisplay != null) mHeadUpDisplay.setEnabled(enable);
if (mIndicatorWheel != null) mIndicatorWheel.setEnabled(enable);
if (mCameraPicker != null) mCameraPicker.setEnabled(enable);
if (mZoomPicker != null) mZoomPicker.setEnabled(enable);
if (mSwitcher != null) mSwitcher.setEnabled(enable);
}
public static int roundOrientation(int orientation) {
return ((orientation + 45) / 90 * 90) % 360;
}
private class MyOrientationEventListener
extends OrientationEventListener {
public MyOrientationEventListener(Context context) {
super(context);
}
@Override
public void onOrientationChanged(int orientation) {
// We keep the last known orientation. So if the user first orient
// the camera then point the camera to floor or sky, we still have
// the correct orientation.
if (orientation == ORIENTATION_UNKNOWN) return;
mOrientation = roundOrientation(orientation);
// When the screen is unlocked, display rotation may change. Always
// calculate the up-to-date orientationCompensation.
int orientationCompensation = mOrientation
+ Util.getDisplayRotation(Camera.this);
if (mOrientationCompensation != orientationCompensation) {
mOrientationCompensation = orientationCompensation;
if (!mIsImageCaptureIntent) {
setOrientationIndicator(mOrientationCompensation);
}
if (mHeadUpDisplay != null) {
mHeadUpDisplay.setOrientation(mOrientationCompensation);
}
}
}
}
private void setOrientationIndicator(int degree) {
RotateImageView icon = (RotateImageView) findViewById(
R.id.review_thumbnail);
if (icon != null) icon.setDegree(degree);
icon = (RotateImageView) findViewById(R.id.camera_switch_icon);
if (icon != null) icon.setDegree(degree);
icon = (RotateImageView) findViewById(R.id.video_switch_icon);
if (icon != null) icon.setDegree(degree);
}
@Override
public void onStart() {
super.onStart();
if (!mIsImageCaptureIntent) {
mSwitcher.setSwitch(SWITCH_CAMERA);
}
}
@Override
public void onStop() {
super.onStop();
if (mMediaProviderClient != null) {
mMediaProviderClient.release();
mMediaProviderClient = null;
}
}
private void checkStorage() {
mPicturesRemaining = Storage.getAvailableSpace();
if (mPicturesRemaining > 0) {
mPicturesRemaining /= 1500000;
}
updateStorageHint();
}
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_retake:
hidePostCaptureAlert();
restartPreview();
break;
case R.id.review_thumbnail:
if (isCameraIdle()) {
viewImage(mThumbnailButton);
}
break;
case R.id.btn_done:
doAttach();
break;
case R.id.btn_cancel:
doCancel();
break;
case R.id.btn_gallery:
gotoGallery();
break;
}
}
private void doAttach() {
if (mPausing) {
return;
}
byte[] data = mJpegImageData;
if (mCropValue == null) {
// First handle the no crop case -- just return the value. If the
// caller specifies a "save uri" then write the data to it's
// stream. Otherwise, pass back a scaled down version of the bitmap
// directly in the extras.
if (mSaveUri != null) {
OutputStream outputStream = null;
try {
outputStream = mContentResolver.openOutputStream(mSaveUri);
outputStream.write(data);
outputStream.close();
setResult(RESULT_OK);
finish();
} catch (IOException ex) {
// ignore exception
} finally {
Util.closeSilently(outputStream);
}
} else {
int orientation = Exif.getOrientation(data);
Bitmap bitmap = Util.makeBitmap(data, 50 * 1024);
bitmap = Util.rotate(bitmap, orientation);
setResult(RESULT_OK,
new Intent("inline-data").putExtra("data", bitmap));
finish();
}
} else {
// Save the image to a temp file and invoke the cropper
Uri tempUri = null;
FileOutputStream tempStream = null;
try {
File path = getFileStreamPath(sTempCropFilename);
path.delete();
tempStream = openFileOutput(sTempCropFilename, 0);
tempStream.write(data);
tempStream.close();
tempUri = Uri.fromFile(path);
} catch (FileNotFoundException ex) {
setResult(Activity.RESULT_CANCELED);
finish();
return;
} catch (IOException ex) {
setResult(Activity.RESULT_CANCELED);
finish();
return;
} finally {
Util.closeSilently(tempStream);
}
Bundle newExtras = new Bundle();
if (mCropValue.equals("circle")) {
newExtras.putString("circleCrop", "true");
}
if (mSaveUri != null) {
newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri);
} else {
newExtras.putBoolean("return-data", true);
}
Intent cropIntent = new Intent("com.android.camera.action.CROP");
cropIntent.setData(tempUri);
cropIntent.putExtras(newExtras);
startActivityForResult(cropIntent, CROP_MSG);
}
}
private void doCancel() {
setResult(RESULT_CANCELED, new Intent());
finish();
}
public void onShutterButtonFocus(ShutterButton button, boolean pressed) {
if (mPausing) {
return;
}
switch (button.getId()) {
case R.id.shutter_button:
doFocus(pressed);
break;
}
}
public void onShutterButtonClick(ShutterButton button) {
if (mPausing) {
return;
}
switch (button.getId()) {
case R.id.shutter_button:
doSnap();
break;
}
}
private OnScreenHint mStorageHint;
private void updateStorageHint() {
String noStorageText = null;
if (mPicturesRemaining == Storage.UNAVAILABLE) {
noStorageText = getString(R.string.no_storage);
} else if (mPicturesRemaining == Storage.PREPARING) {
noStorageText = getString(R.string.preparing_sd);
} else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) {
noStorageText = getString(R.string.access_sd_fail);
} else if (mPicturesRemaining < 1L) {
noStorageText = getString(R.string.not_enough_space);
}
if (noStorageText != null) {
if (mStorageHint == null) {
mStorageHint = OnScreenHint.makeText(this, noStorageText);
} else {
mStorageHint.setText(noStorageText);
}
mStorageHint.show();
} else if (mStorageHint != null) {
mStorageHint.cancel();
mStorageHint = null;
}
}
private void installIntentFilter() {
// install an intent filter to receive SD card related events.
IntentFilter intentFilter =
new IntentFilter(Intent.ACTION_MEDIA_MOUNTED);
intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED);
intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED);
intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING);
intentFilter.addDataScheme("file");
registerReceiver(mReceiver, intentFilter);
mDidRegister = true;
}
private void initializeFocusTone() {
// Initialize focus tone generator.
try {
mFocusToneGenerator = new ToneGenerator(
AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME);
} catch (Throwable ex) {
Log.w(TAG, "Exception caught while creating tone generator: ", ex);
mFocusToneGenerator = null;
}
}
private void initializeScreenBrightness() {
Window win = getWindow();
// Overright the brightness settings if it is automatic
int mode = Settings.System.getInt(
getContentResolver(),
Settings.System.SCREEN_BRIGHTNESS_MODE,
Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL);
if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) {
WindowManager.LayoutParams winParams = win.getAttributes();
winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS;
win.setAttributes(winParams);
}
}
@Override
protected void onResume() {
super.onResume();
mPausing = false;
mJpegPictureCallbackTime = 0;
mZoomValue = 0;
// Start the preview if it is not started.
if (!mPreviewing && !mStartPreviewFail) {
resetExposureCompensation();
if (!restartPreview()) return;
}
if (mSurfaceHolder != null) {
// If first time initialization is not finished, put it in the
// message queue.
if (!mFirstTimeInitialized) {
mHandler.sendEmptyMessage(FIRST_TIME_INIT);
} else {
initializeSecondTime();
}
}
keepScreenOnAwhile();
if (mPreviewing) {
mOnResumeTime = SystemClock.uptimeMillis();
mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100);
}
}
@Override
public void onConfigurationChanged(Configuration config) {
super.onConfigurationChanged(config);
changeHeadUpDisplayState();
}
@Override
protected void onPause() {
mPausing = true;
stopPreview();
// Close the camera now because other activities may need to use it.
closeCamera();
resetScreenOn();
collapseCameraControls();
changeHeadUpDisplayState();
if (mFirstTimeInitialized) {
mOrientationListener.disable();
if (!mIsImageCaptureIntent) {
if (mThumbnailButton != null) {
mThumbnailButton.storeData(LAST_THUMB_PATH);
}
}
hidePostCaptureAlert();
}
if (mDidRegister) {
unregisterReceiver(mReceiver);
mDidRegister = false;
}
stopReceivingLocationUpdates();
if (mFocusToneGenerator != null) {
mFocusToneGenerator.release();
mFocusToneGenerator = null;
}
if (mStorageHint != null) {
mStorageHint.cancel();
mStorageHint = null;
}
// If we are in an image capture intent and has taken
// a picture, we just clear it in onPause.
mJpegImageData = null;
// Remove the messages in the event queue.
mHandler.removeMessages(RESTART_PREVIEW);
mHandler.removeMessages(FIRST_TIME_INIT);
mHandler.removeMessages(CHECK_DISPLAY_ROTATION);
super.onPause();
}
@Override
protected void onActivityResult(
int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case CROP_MSG: {
Intent intent = new Intent();
if (data != null) {
Bundle extras = data.getExtras();
if (extras != null) {
intent.putExtras(extras);
}
}
setResult(resultCode, intent);
finish();
File path = getFileStreamPath(sTempCropFilename);
path.delete();
break;
}
}
}
private boolean canTakePicture() {
return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0);
}
private void autoFocus() {
// Initiate autofocus only when preview is started and snapshot is not
// in progress.
if (canTakePicture()) {
enableCameraControls(false);
Log.v(TAG, "Start autofocus.");
mFocusStartTime = System.currentTimeMillis();
mFocusState = FOCUSING;
updateFocusIndicator();
mCameraDevice.autoFocus(mAutoFocusCallback);
}
}
private void cancelAutoFocus() {
// User releases half-pressed focus key.
if (mStatus != SNAPSHOT_IN_PROGRESS && (mFocusState == FOCUSING
|| mFocusState == FOCUS_SUCCESS || mFocusState == FOCUS_FAIL)) {
Log.v(TAG, "Cancel autofocus.");
enableCameraControls(true);
mCameraDevice.cancelAutoFocus();
}
if (mFocusState != FOCUSING_SNAP_ON_FINISH) {
clearFocusState();
}
}
private void clearFocusState() {
mFocusState = FOCUS_NOT_STARTED;
updateFocusIndicator();
}
private void updateFocusIndicator() {
if (mFocusRectangle == null) return;
if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) {
mFocusRectangle.showStart();
} else if (mFocusState == FOCUS_SUCCESS) {
mFocusRectangle.showSuccess();
} else if (mFocusState == FOCUS_FAIL) {
mFocusRectangle.showFail();
} else {
mFocusRectangle.clear();
}
}
@Override
public void onBackPressed() {
if (!isCameraIdle()) {
// ignore backs while we're taking a picture
return;
} else if (!collapseCameraControls()) {
super.onBackPressed();
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_FOCUS:
if (mFirstTimeInitialized && event.getRepeatCount() == 0) {
doFocus(true);
}
return true;
case KeyEvent.KEYCODE_CAMERA:
if (mFirstTimeInitialized && event.getRepeatCount() == 0) {
doSnap();
}
return true;
case KeyEvent.KEYCODE_DPAD_CENTER:
// If we get a dpad center event without any focused view, move
// the focus to the shutter button and press it.
if (mFirstTimeInitialized && event.getRepeatCount() == 0) {
// Start auto-focus immediately to reduce shutter lag. After
// the shutter button gets the focus, doFocus() will be
// called again but it is fine.
if (collapseCameraControls()) return true;
doFocus(true);
if (mShutterButton.isInTouchMode()) {
mShutterButton.requestFocusFromTouch();
} else {
mShutterButton.requestFocus();
}
mShutterButton.setPressed(true);
}
return true;
}
return super.onKeyDown(keyCode, event);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_FOCUS:
if (mFirstTimeInitialized) {
doFocus(false);
}
return true;
}
return super.onKeyUp(keyCode, event);
}
private void doSnap() {
if (collapseCameraControls()) return;
Log.v(TAG, "doSnap: mFocusState=" + mFocusState);
// If the user has half-pressed the shutter and focus is completed, we
// can take the photo right away. If the focus mode is infinity, we can
// also take the photo.
if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY)
|| mFocusMode.equals(Parameters.FOCUS_MODE_FIXED)
|| mFocusMode.equals(Parameters.FOCUS_MODE_EDOF)
|| (mFocusState == FOCUS_SUCCESS
|| mFocusState == FOCUS_FAIL)) {
capture();
} else if (mFocusState == FOCUSING) {
// Half pressing the shutter (i.e. the focus button event) will
// already have requested AF for us, so just request capture on
// focus here.
mFocusState = FOCUSING_SNAP_ON_FINISH;
} else if (mFocusState == FOCUS_NOT_STARTED) {
// Focus key down event is dropped for some reasons. Just ignore.
}
}
private void doFocus(boolean pressed) {
// Do the focus if the mode is not infinity.
if (collapseCameraControls()) return;
if (!(mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY)
|| mFocusMode.equals(Parameters.FOCUS_MODE_FIXED)
|| mFocusMode.equals(Parameters.FOCUS_MODE_EDOF))) {
if (pressed) { // Focus key down.
autoFocus();
} else { // Focus key up.
cancelAutoFocus();
}
}
}
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
// Make sure we have a surface in the holder before proceeding.
if (holder.getSurface() == null) {
Log.d(TAG, "holder.getSurface() == null");
return;
}
Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h);
// We need to save the holder for later use, even when the mCameraDevice
// is null. This could happen if onResume() is invoked after this
// function.
mSurfaceHolder = holder;
// The mCameraDevice will be null if it fails to connect to the camera
// hardware. In this case we will show a dialog and then finish the
// activity, so it's OK to ignore it.
if (mCameraDevice == null) return;
// Sometimes surfaceChanged is called after onPause or before onResume.
// Ignore it.
if (mPausing || isFinishing()) return;
// Set preview display if the surface is being created. Preview was
// already started. Also restart the preview if display rotation has
// changed. Sometimes this happens when the device is held in portrait
// and camera app is opened. Rotation animation takes some time and
// display rotation in onCreate may not be what we want.
if (mPreviewing && (Util.getDisplayRotation(this) == mDisplayRotation)
&& holder.isCreating()) {
// Set preview display if the surface is being created and preview
// was already started. That means preview display was set to null
// and we need to set it now.
setPreviewDisplay(holder);
} else {
// 1. Restart the preview if the size of surface was changed. The
// framework may not support changing preview display on the fly.
// 2. Start the preview now if surface was destroyed and preview
// stopped.
restartPreview();
}
// If first time initialization is not finished, send a message to do
// it later. We want to finish surfaceChanged as soon as possible to let
// user see preview first.
if (!mFirstTimeInitialized) {
mHandler.sendEmptyMessage(FIRST_TIME_INIT);
} else {
initializeSecondTime();
}
}
public void surfaceCreated(SurfaceHolder holder) {
}
public void surfaceDestroyed(SurfaceHolder holder) {
stopPreview();
mSurfaceHolder = null;
}
private void closeCamera() {
if (mCameraDevice != null) {
CameraHolder.instance().release();
mCameraDevice.setZoomChangeListener(null);
mCameraDevice = null;
mPreviewing = false;
}
}
private void ensureCameraDevice() throws CameraHardwareException {
if (mCameraDevice == null) {
mCameraDevice = CameraHolder.instance().open(mCameraId);
mInitialParams = mCameraDevice.getParameters();
}
}
private void showCameraErrorAndFinish() {
Resources ress = getResources();
Util.showFatalErrorAndFinish(Camera.this,
ress.getString(R.string.camera_error_title),
ress.getString(R.string.cannot_connect_camera));
}
private boolean restartPreview() {
try {
startPreview();
} catch (CameraHardwareException e) {
showCameraErrorAndFinish();
return false;
}
return true;
}
private void setPreviewDisplay(SurfaceHolder holder) {
try {
mCameraDevice.setPreviewDisplay(holder);
} catch (Throwable ex) {
closeCamera();
throw new RuntimeException("setPreviewDisplay failed", ex);
}
}
private void startPreview() throws CameraHardwareException {
if (mPausing || isFinishing()) return;
ensureCameraDevice();
mCameraDevice.setErrorCallback(mErrorCallback);
// If we're previewing already, stop the preview first (this will blank
// the screen).
if (mPreviewing) stopPreview();
setPreviewDisplay(mSurfaceHolder);
mDisplayRotation = Util.getDisplayRotation(this);
Util.setCameraDisplayOrientation(mDisplayRotation, mCameraId, mCameraDevice);
setCameraParameters(UPDATE_PARAM_ALL);
try {
Log.v(TAG, "startPreview");
mCameraDevice.startPreview();
} catch (Throwable ex) {
closeCamera();
throw new RuntimeException("startPreview failed", ex);
}
mPreviewing = true;
mZoomState = ZOOM_STOPPED;
mStatus = IDLE;
}
private void stopPreview() {
if (mCameraDevice != null && mPreviewing) {
Log.v(TAG, "stopPreview");
mCameraDevice.stopPreview();
}
mPreviewing = false;
// If auto focus was in progress, it would have been canceled.
clearFocusState();
}
private static boolean isSupported(String value, List<String> supported) {
return supported == null ? false : supported.indexOf(value) >= 0;
}
private void updateCameraParametersInitialize() {
// Reset preview frame rate to the maximum because it may be lowered by
// video camera application.
List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates();
if (frameRates != null) {
Integer max = Collections.max(frameRates);
mParameters.setPreviewFrameRate(max);
}
}
private void updateCameraParametersZoom() {
// Set zoom.
if (mParameters.isZoomSupported()) {
mParameters.setZoom(mZoomValue);
}
}
private void updateCameraParametersPreference() {
// Set picture size.
String pictureSize = mPreferences.getString(
CameraSettings.KEY_PICTURE_SIZE, null);
if (pictureSize == null) {
CameraSettings.initialCameraPictureSize(this, mParameters);
} else {
List<Size> supported = mParameters.getSupportedPictureSizes();
CameraSettings.setCameraPictureSize(
pictureSize, supported, mParameters);
}
// Set the preview frame aspect ratio according to the picture size.
Size size = mParameters.getPictureSize();
PreviewFrameLayout frameLayout =
(PreviewFrameLayout) findViewById(R.id.frame_layout);
frameLayout.setAspectRatio((double) size.width / size.height);
// Set a preview size that is closest to the viewfinder height and has
// the right aspect ratio.
List<Size> sizes = mParameters.getSupportedPreviewSizes();
Size optimalSize = Util.getOptimalPreviewSize(this,
sizes, (double) size.width / size.height);
Size original = mParameters.getPreviewSize();
if (!original.equals(optimalSize)) {
mParameters.setPreviewSize(optimalSize.width, optimalSize.height);
// Zoom related settings will be changed for different preview
// sizes, so set and read the parameters to get lastest values
mCameraDevice.setParameters(mParameters);
mParameters = mCameraDevice.getParameters();
}
Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height);
// Since change scene mode may change supported values,
// Set scene mode first,
mSceneMode = mPreferences.getString(
CameraSettings.KEY_SCENE_MODE,
getString(R.string.pref_camera_scenemode_default));
if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) {
if (!mParameters.getSceneMode().equals(mSceneMode)) {
mParameters.setSceneMode(mSceneMode);
mCameraDevice.setParameters(mParameters);
// Setting scene mode will change the settings of flash mode,
// white balance, and focus mode. Here we read back the
// parameters, so we can know those settings.
mParameters = mCameraDevice.getParameters();
}
} else {
mSceneMode = mParameters.getSceneMode();
if (mSceneMode == null) {
mSceneMode = Parameters.SCENE_MODE_AUTO;
}
}
// Set JPEG quality.
String jpegQuality = mPreferences.getString(
CameraSettings.KEY_JPEG_QUALITY,
getString(R.string.pref_camera_jpegquality_default));
mParameters.setJpegQuality(JpegEncodingQualityMappings.getQualityNumber(jpegQuality));
// For the following settings, we need to check if the settings are
// still supported by latest driver, if not, ignore the settings.
// Set color effect parameter.
String colorEffect = mPreferences.getString(
CameraSettings.KEY_COLOR_EFFECT,
getString(R.string.pref_camera_coloreffect_default));
if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) {
mParameters.setColorEffect(colorEffect);
}
// Set exposure compensation
String exposure = mPreferences.getString(
CameraSettings.KEY_EXPOSURE,
getString(R.string.pref_exposure_default));
try {
int value = Integer.parseInt(exposure);
int max = mParameters.getMaxExposureCompensation();
int min = mParameters.getMinExposureCompensation();
if (value >= min && value <= max) {
mParameters.setExposureCompensation(value);
} else {
Log.w(TAG, "invalid exposure range: " + exposure);
}
} catch (NumberFormatException e) {
Log.w(TAG, "invalid exposure: " + exposure);
}
if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) {
// Set flash mode.
String flashMode = mPreferences.getString(
CameraSettings.KEY_FLASH_MODE,
getString(R.string.pref_camera_flashmode_default));
List<String> supportedFlash = mParameters.getSupportedFlashModes();
if (isSupported(flashMode, supportedFlash)) {
mParameters.setFlashMode(flashMode);
} else {
flashMode = mParameters.getFlashMode();
if (flashMode == null) {
flashMode = getString(
R.string.pref_camera_flashmode_no_flash);
}
}
// Set white balance parameter.
String whiteBalance = mPreferences.getString(
CameraSettings.KEY_WHITE_BALANCE,
getString(R.string.pref_camera_whitebalance_default));
if (isSupported(whiteBalance,
mParameters.getSupportedWhiteBalance())) {
mParameters.setWhiteBalance(whiteBalance);
} else {
whiteBalance = mParameters.getWhiteBalance();
if (whiteBalance == null) {
whiteBalance = Parameters.WHITE_BALANCE_AUTO;
}
}
// Set focus mode.
mFocusMode = mPreferences.getString(
CameraSettings.KEY_FOCUS_MODE,
getString(R.string.pref_camera_focusmode_default));
if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) {
mParameters.setFocusMode(mFocusMode);
} else {
mFocusMode = mParameters.getFocusMode();
if (mFocusMode == null) {
mFocusMode = Parameters.FOCUS_MODE_AUTO;
}
}
} else {
mFocusMode = mParameters.getFocusMode();
}
}
// We separate the parameters into several subsets, so we can update only
// the subsets actually need updating. The PREFERENCE set needs extra
// locking because the preference can be changed from GLThread as well.
private void setCameraParameters(int updateSet) {
mParameters = mCameraDevice.getParameters();
if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) {
updateCameraParametersInitialize();
}
if ((updateSet & UPDATE_PARAM_ZOOM) != 0) {
updateCameraParametersZoom();
}
if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) {
updateCameraParametersPreference();
}
mCameraDevice.setParameters(mParameters);
}
// If the Camera is idle, update the parameters immediately, otherwise
// accumulate them in mUpdateSet and update later.
private void setCameraParametersWhenIdle(int additionalUpdateSet) {
mUpdateSet |= additionalUpdateSet;
if (mCameraDevice == null) {
// We will update all the parameters when we open the device, so
// we don't need to do anything now.
mUpdateSet = 0;
return;
} else if (isCameraIdle()) {
setCameraParameters(mUpdateSet);
updateSceneModeUI();
mUpdateSet = 0;
} else {
if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) {
mHandler.sendEmptyMessageDelayed(
SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000);
}
}
}
private void gotoGallery() {
MenuHelper.gotoCameraImageGallery(this);
}
private void viewImage(RotateImageView view) {
if(!view.isUriValid()) {
Log.e(TAG, "Uri invalid. uri=" + view.getUri());
return;
}
try {
startActivity(new Intent(
Util.REVIEW_ACTION, view.getUri()));
} catch (ActivityNotFoundException ex) {
try {
startActivity(new Intent(
Intent.ACTION_VIEW, view.getUri()));
} catch (ActivityNotFoundException e) {
Log.e(TAG, "review image fail. uri=" + view.getUri(), e);
}
}
}
private void startReceivingLocationUpdates() {
if (mLocationManager != null) {
try {
mLocationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
1000,
0F,
mLocationListeners[1]);
} catch (java.lang.SecurityException ex) {
Log.i(TAG, "fail to request location update, ignore", ex);
} catch (IllegalArgumentException ex) {
Log.d(TAG, "provider does not exist " + ex.getMessage());
}
try {
mLocationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
1000,
0F,
mLocationListeners[0]);
showGpsOnScreenIndicator(false);
} catch (java.lang.SecurityException ex) {
Log.i(TAG, "fail to request location update, ignore", ex);
} catch (IllegalArgumentException ex) {
Log.d(TAG, "provider does not exist " + ex.getMessage());
}
Log.d(TAG, "startReceivingLocationUpdates");
}
}
private void stopReceivingLocationUpdates() {
if (mLocationManager != null) {
for (int i = 0; i < mLocationListeners.length; i++) {
try {
mLocationManager.removeUpdates(mLocationListeners[i]);
} catch (Exception ex) {
Log.i(TAG, "fail to remove location listners, ignore", ex);
}
}
Log.d(TAG, "stopReceivingLocationUpdates");
}
hideGpsOnScreenIndicator();
}
private Location getCurrentLocation() {
// go in best to worst order
for (int i = 0; i < mLocationListeners.length; i++) {
Location l = mLocationListeners[i].current();
if (l != null) return l;
}
Log.d(TAG, "No location received yet.");
return null;
}
private boolean isCameraIdle() {
return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED;
}
private boolean isImageCaptureIntent() {
String action = getIntent().getAction();
return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action));
}
private void setupCaptureParams() {
Bundle myExtras = getIntent().getExtras();
if (myExtras != null) {
mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT);
mCropValue = myExtras.getString("crop");
}
}
private void showPostCaptureAlert() {
if (mIsImageCaptureIntent) {
if (mIndicatorWheel == null) {
mShutterButton.setVisibility(View.INVISIBLE);
} else {
mShutterButton.setEnabled(false);
}
int[] pickIds = {R.id.btn_retake, R.id.btn_done};
for (int id : pickIds) {
View button = findViewById(id);
((View) button.getParent()).setVisibility(View.VISIBLE);
}
// Remove the text of the cancel button
View view = findViewById(R.id.btn_cancel);
if (view instanceof Button) ((Button) view).setText("");
}
}
private void hidePostCaptureAlert() {
if (mIsImageCaptureIntent) {
if (mIndicatorWheel == null) {
mShutterButton.setVisibility(View.VISIBLE);
} else {
mShutterButton.setEnabled(true);
}
int[] pickIds = {R.id.btn_retake, R.id.btn_done};
for (int id : pickIds) {
View button = findViewById(id);
((View) button.getParent()).setVisibility(View.GONE);
}
enableCameraControls(true);
// Restore the text of the cancel button
View view = findViewById(R.id.btn_cancel);
if (view instanceof Button) {
((Button) view).setText(R.string.review_cancel);
}
}
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
// Only show the menu when camera is idle.
for (int i = 0; i < menu.size(); i++) {
menu.getItem(i).setVisible(isCameraIdle());
}
return true;
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
if (mIsImageCaptureIntent) {
// No options menu for attach mode.
return false;
} else {
addBaseMenuItems(menu);
}
return true;
}
private void addBaseMenuItems(Menu menu) {
MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() {
public void run() {
switchToVideoMode();
}
});
MenuItem gallery = menu.add(Menu.NONE, Menu.NONE,
MenuHelper.POSITION_GOTO_GALLERY,
R.string.camera_gallery_photos_text)
.setOnMenuItemClickListener(new OnMenuItemClickListener() {
public boolean onMenuItemClick(MenuItem item) {
gotoGallery();
return true;
}
});
gallery.setIcon(android.R.drawable.ic_menu_gallery);
mGalleryItems.add(gallery);
if (mNumberOfCameras > 1) {
menu.add(Menu.NONE, Menu.NONE,
MenuHelper.POSITION_SWITCH_CAMERA_ID,
R.string.switch_camera_id)
.setOnMenuItemClickListener(new OnMenuItemClickListener() {
public boolean onMenuItemClick(MenuItem item) {
CameraSettings.writePreferredCameraId(mPreferences,
((mCameraId == mFrontCameraId)
? mBackCameraId : mFrontCameraId));
onSharedPreferenceChanged();
return true;
}
}).setIcon(android.R.drawable.ic_menu_camera);
}
}
private boolean switchToVideoMode() {
if (isFinishing() || !isCameraIdle()) return false;
MenuHelper.gotoVideoMode(Camera.this);
mHandler.removeMessages(FIRST_TIME_INIT);
finish();
return true;
}
public boolean onSwitchChanged(Switcher source, boolean onOff) {
if (onOff == SWITCH_VIDEO) {
return switchToVideoMode();
} else {
return true;
}
}
private void onSharedPreferenceChanged() {
// ignore the events after "onPause()"
if (mPausing) return;
boolean recordLocation;
recordLocation = RecordLocationPreference.get(
mPreferences, getContentResolver());
if (mRecordLocation != recordLocation) {
mRecordLocation = recordLocation;
if (mRecordLocation) {
startReceivingLocationUpdates();
} else {
stopReceivingLocationUpdates();
}
}
int cameraId = CameraSettings.readPreferredCameraId(mPreferences);
if (mCameraId != cameraId) {
// Restart the activity to have a crossfade animation.
// TODO: Use SurfaceTexture to implement a better and faster
// animation.
if (mIsImageCaptureIntent) {
// If the intent is camera capture, stay in camera capture mode.
MenuHelper.gotoCameraMode(this, getIntent());
} else {
MenuHelper.gotoCameraMode(this);
}
finish();
} else {
setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE);
}
}
@Override
public void onUserInteraction() {
super.onUserInteraction();
keepScreenOnAwhile();
}
private void resetScreenOn() {
mHandler.removeMessages(CLEAR_SCREEN_DELAY);
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
private void keepScreenOnAwhile() {
mHandler.removeMessages(CLEAR_SCREEN_DELAY);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY);
}
private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener {
public void onSharedPreferenceChanged() {
Camera.this.onSharedPreferenceChanged();
}
public void onRestorePreferencesClicked() {
Camera.this.onRestorePreferencesClicked();
}
public void onPopupWindowVisibilityChanged(int visibility) {
}
}
protected void onRestorePreferencesClicked() {
if (mPausing) return;
Runnable runnable = new Runnable() {
public void run() {
restorePreferences();
}
};
MenuHelper.confirmAction(this,
getString(R.string.confirm_restore_title),
getString(R.string.confirm_restore_message),
runnable);
}
private void restorePreferences() {
// Reset the zoom. Zoom value is not stored in preference.
if (mParameters.isZoomSupported()) {
mZoomValue = 0;
setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM);
if (mZoomPicker != null) mZoomPicker.setZoomIndex(0);
}
if (mHeadUpDisplay != null) {
mHeadUpDisplay.restorePreferences(mParameters);
}
if (mIndicatorWheel != null) {
mIndicatorWheel.dismissSettingPopup();
CameraSettings.restorePreferences(Camera.this, mPreferences,
mParameters);
initializeIndicatorWheel();
onSharedPreferenceChanged();
}
}
protected void onOverriddenPreferencesClicked() {
if (mPausing) return;
if (mNotSelectableToast == null) {
String str = getResources().getString(R.string.not_selectable_in_scene_mode);
mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT);
}
mNotSelectableToast.cancel();
mNotSelectableToast.show();
}
private class MyIndicatorWheelListener implements IndicatorWheel.Listener {
public void onSharedPreferenceChanged() {
Camera.this.onSharedPreferenceChanged();
}
public void onRestorePreferencesClicked() {
Camera.this.onRestorePreferencesClicked();
}
public void onOverriddenPreferencesClicked() {
Camera.this.onOverriddenPreferencesClicked();
}
}
private class MyCameraPickerListener implements CameraPicker.Listener {
public void onSharedPreferenceChanged() {
Camera.this.onSharedPreferenceChanged();
}
}
}
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