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-rw-r--r--core/java/android/gadget/GadgetHostView.java312
1 files changed, 0 insertions, 312 deletions
diff --git a/core/java/android/gadget/GadgetHostView.java b/core/java/android/gadget/GadgetHostView.java
deleted file mode 100644
index 5cbd988..0000000
--- a/core/java/android/gadget/GadgetHostView.java
+++ /dev/null
@@ -1,312 +0,0 @@
-/*
- * Copyright (C) 2008 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 android.gadget;
-
-import android.content.Context;
-import android.content.pm.PackageManager;
-import android.graphics.Bitmap;
-import android.graphics.Canvas;
-import android.graphics.Color;
-import android.graphics.Paint;
-import android.os.Handler;
-import android.os.Message;
-import android.os.SystemClock;
-import android.util.Config;
-import android.util.Log;
-import android.view.Gravity;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.view.animation.Animation;
-import android.widget.FrameLayout;
-import android.widget.RemoteViews;
-import android.widget.TextView;
-
-/**
- * Provides the glue to show gadget views. This class offers automatic animation
- * between updates, and will try recycling old views for each incoming
- * {@link RemoteViews}.
- */
-public class GadgetHostView extends FrameLayout {
- static final String TAG = "GadgetHostView";
- static final boolean LOGD = false;
- static final boolean CROSSFADE = false;
-
- static final int VIEW_MODE_NOINIT = 0;
- static final int VIEW_MODE_CONTENT = 1;
- static final int VIEW_MODE_ERROR = 2;
- static final int VIEW_MODE_DEFAULT = 3;
-
- static final int FADE_DURATION = 1000;
-
- // When we're inflating the initialLayout for a gadget, we only allow
- // views that are allowed in RemoteViews.
- static final LayoutInflater.Filter sInflaterFilter = new LayoutInflater.Filter() {
- public boolean onLoadClass(Class clazz) {
- return clazz.isAnnotationPresent(RemoteViews.RemoteView.class);
- }
- };
-
- Context mContext;
-
- int mGadgetId;
- GadgetProviderInfo mInfo;
- View mView;
- int mViewMode = VIEW_MODE_NOINIT;
- int mLayoutId = -1;
- long mFadeStartTime = -1;
- Bitmap mOld;
- Paint mOldPaint = new Paint();
-
- /**
- * Create a host view. Uses default fade animations.
- */
- public GadgetHostView(Context context) {
- this(context, android.R.anim.fade_in, android.R.anim.fade_out);
- }
-
- /**
- * Create a host view. Uses specified animations when pushing
- * {@link #updateGadget(RemoteViews)}.
- *
- * @param animationIn Resource ID of in animation to use
- * @param animationOut Resource ID of out animation to use
- */
- public GadgetHostView(Context context, int animationIn, int animationOut) {
- super(context);
- mContext = context;
- }
-
- /**
- * Set the gadget that will be displayed by this view.
- */
- public void setGadget(int gadgetId, GadgetProviderInfo info) {
- mGadgetId = gadgetId;
- mInfo = info;
- }
-
- public int getGadgetId() {
- return mGadgetId;
- }
-
- public GadgetProviderInfo getGadgetInfo() {
- return mInfo;
- }
-
- /**
- * Process a set of {@link RemoteViews} coming in as an update from the
- * gadget provider. Will animate into these new views as needed.
- */
- public void updateGadget(RemoteViews remoteViews) {
- if (LOGD) Log.d(TAG, "updateGadget called mOld=" + mOld);
-
- boolean recycled = false;
- View content = null;
- Exception exception = null;
-
- // Capture the old view into a bitmap so we can do the crossfade.
- if (CROSSFADE) {
- if (mFadeStartTime < 0) {
- if (mView != null) {
- final int width = mView.getWidth();
- final int height = mView.getHeight();
- try {
- mOld = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
- } catch (OutOfMemoryError e) {
- // we just won't do the fade
- mOld = null;
- }
- if (mOld != null) {
- //mView.drawIntoBitmap(mOld);
- }
- }
- }
- }
-
- if (remoteViews == null) {
- if (mViewMode == VIEW_MODE_DEFAULT) {
- // We've already done this -- nothing to do.
- return;
- }
- content = getDefaultView();
- mLayoutId = -1;
- mViewMode = VIEW_MODE_DEFAULT;
- } else {
- int layoutId = remoteViews.getLayoutId();
-
- // If our stale view has been prepared to match active, and the new
- // layout matches, try recycling it
- if (content == null && layoutId == mLayoutId) {
- try {
- remoteViews.reapply(mContext, mView);
- content = mView;
- recycled = true;
- if (LOGD) Log.d(TAG, "was able to recycled existing layout");
- } catch (RuntimeException e) {
- exception = e;
- }
- }
-
- // Try normal RemoteView inflation
- if (content == null) {
- try {
- content = remoteViews.apply(mContext, this);
- if (LOGD) Log.d(TAG, "had to inflate new layout");
- } catch (RuntimeException e) {
- exception = e;
- }
- }
-
- mLayoutId = layoutId;
- mViewMode = VIEW_MODE_CONTENT;
- }
-
- if (content == null) {
- if (mViewMode == VIEW_MODE_ERROR) {
- // We've already done this -- nothing to do.
- return ;
- }
- Log.w(TAG, "updateGadget couldn't find any view, using error view", exception);
- content = getErrorView();
- mViewMode = VIEW_MODE_ERROR;
- }
-
- if (!recycled) {
- prepareView(content);
- addView(content);
- }
-
- if (mView != content) {
- removeView(mView);
- mView = content;
- }
-
- if (CROSSFADE) {
- if (mFadeStartTime < 0) {
- // if there is already an animation in progress, don't do anything --
- // the new view will pop in on top of the old one during the cross fade,
- // and that looks okay.
- mFadeStartTime = SystemClock.uptimeMillis();
- invalidate();
- }
- }
- }
-
- protected boolean drawChild(Canvas canvas, View child, long drawingTime) {
- if (CROSSFADE) {
- int alpha;
- int l = child.getLeft();
- int t = child.getTop();
- if (mFadeStartTime > 0) {
- alpha = (int)(((drawingTime-mFadeStartTime)*255)/FADE_DURATION);
- if (alpha > 255) {
- alpha = 255;
- }
- Log.d(TAG, "drawChild alpha=" + alpha + " l=" + l + " t=" + t
- + " w=" + child.getWidth());
- if (alpha != 255 && mOld != null) {
- mOldPaint.setAlpha(255-alpha);
- //canvas.drawBitmap(mOld, l, t, mOldPaint);
- }
- } else {
- alpha = 255;
- }
- int restoreTo = canvas.saveLayerAlpha(l, t, child.getWidth(), child.getHeight(), alpha,
- Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.CLIP_TO_LAYER_SAVE_FLAG);
- boolean rv = super.drawChild(canvas, child, drawingTime);
- canvas.restoreToCount(restoreTo);
- if (alpha < 255) {
- invalidate();
- } else {
- mFadeStartTime = -1;
- if (mOld != null) {
- mOld.recycle();
- mOld = null;
- }
- }
- return rv;
- } else {
- return super.drawChild(canvas, child, drawingTime);
- }
- }
-
- /**
- * Prepare the given view to be shown. This might include adjusting
- * {@link FrameLayout.LayoutParams} before inserting.
- */
- protected void prepareView(View view) {
- // Take requested dimensions from parent, but apply default gravity.
- ViewGroup.LayoutParams requested = view.getLayoutParams();
- if (requested == null) {
- requested = new FrameLayout.LayoutParams(LayoutParams.FILL_PARENT,
- LayoutParams.FILL_PARENT);
- }
-
- FrameLayout.LayoutParams params =
- new FrameLayout.LayoutParams(requested.width, requested.height);
- params.gravity = Gravity.CENTER;
- view.setLayoutParams(params);
- }
-
- /**
- * Inflate and return the default layout requested by gadget provider.
- */
- protected View getDefaultView() {
- View defaultView = null;
- Exception exception = null;
-
- try {
- if (mInfo != null) {
- Context theirContext = mContext.createPackageContext(
- mInfo.provider.getPackageName(), 0 /* no flags */);
- LayoutInflater inflater = (LayoutInflater)
- theirContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
- inflater = inflater.cloneInContext(theirContext);
- inflater.setFilter(sInflaterFilter);
- defaultView = inflater.inflate(mInfo.initialLayout, this, false);
- } else {
- Log.w(TAG, "can't inflate defaultView because mInfo is missing");
- }
- } catch (PackageManager.NameNotFoundException e) {
- exception = e;
- } catch (RuntimeException e) {
- exception = e;
- }
-
- if (exception != null && LOGD) {
- Log.w(TAG, "Error inflating gadget " + mInfo, exception);
- }
-
- if (defaultView == null) {
- if (LOGD) Log.d(TAG, "getDefaultView couldn't find any view, so inflating error");
- defaultView = getErrorView();
- }
-
- return defaultView;
- }
-
- /**
- * Inflate and return a view that represents an error state.
- */
- protected View getErrorView() {
- TextView tv = new TextView(mContext);
- tv.setText(com.android.internal.R.string.gadget_host_error_inflating);
- // TODO: get this color from somewhere.
- tv.setBackgroundColor(Color.argb(127, 0, 0, 0));
- return tv;
- }
-}
generated by cgit v1.1 at 2025-09-14 14:30:08 +0000