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package com.example.renderthread;
import android.animation.TimeInterpolator;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.SystemClock;
import android.view.DisplayList;
import android.view.HardwareRenderer;
import android.view.ThreadedRenderer;
import android.view.View;
import android.view.animation.AccelerateDecelerateInterpolator;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
public class MainActivity extends Activity implements OnItemClickListener {
static final int DURATION = 400;
static final String KEY_NAME = "name";
static final String KEY_CLASS = "clazz";
static Map<String,?> make(String name) {
Map<String,Object> ret = new HashMap<String,Object>();
ret.put(KEY_NAME, name);
return ret;
}
@SuppressWarnings("serial")
static final ArrayList<Map<String,?>> SAMPLES = new ArrayList<Map<String,?>>() {{
for (int i = 1; i < 25; i++) {
add(make("List Item: " + i));
}
}};
Handler mHandler = new Handler();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
HardwareRenderer.sUseRenderThread = true;
setContentView(R.layout.activity_main);
ListView lv = (ListView) findViewById(android.R.id.list);
lv.setDrawSelectorOnTop(true);
lv.setAdapter(new SimpleAdapter(this, SAMPLES,
R.layout.item_layout, new String[] { KEY_NAME },
new int[] { android.R.id.text1 }));
lv.setOnItemClickListener(this);
getActionBar().setTitle("MainActivity");
}
@Override
protected void onResume() {
super.onResume();
ListView lv = (ListView) findViewById(android.R.id.list);
for (int i = 0; i < lv.getChildCount(); i++) {
lv.getChildAt(i).animate().translationY(0).setDuration(DURATION);
}
}
private static class DisplayListAnimator {
private static final TimeInterpolator sDefaultInterpolator =
new AccelerateDecelerateInterpolator();
DisplayList mDisplayList;
float mFromValue;
float mDelta;
long mDuration = DURATION * 2;
long mStartTime;
DisplayListAnimator(View view, float translateXBy) {
mDelta = translateXBy;
mFromValue = view.getTranslationY();
mDisplayList = view.getDisplayList();
}
boolean animate(long currentTime) {
if (mStartTime == 0) mStartTime = currentTime;
float fraction = (float)(currentTime - mStartTime) / mDuration;
if (fraction > 1) {
return false;
}
fraction = sDefaultInterpolator.getInterpolation(fraction);
float translation = mFromValue + (mDelta * fraction);
mDisplayList.setTranslationY(translation);
return fraction < 1f;
}
}
private static class AnimationExecutor implements Runnable {
DisplayListAnimator[] mAnimations;
ThreadedRenderer mRenderer;
AnimationExecutor(ThreadedRenderer renderer, DisplayListAnimator[] animations) {
mRenderer = renderer;
mAnimations = animations;
ThreadedRenderer.postToRenderThread(this);
}
@Override
public void run() {
boolean hasMore = false;
long now = SystemClock.uptimeMillis();
for (DisplayListAnimator animator : mAnimations) {
hasMore |= animator.animate(now);
}
mRenderer.repeatLastDraw();
if (hasMore) {
ThreadedRenderer.postToRenderThread(this);
}
}
}
@Override
public void onItemClick(final AdapterView<?> adapterView, View clickedView,
int clickedPosition, long clickedId) {
int topPosition = adapterView.getFirstVisiblePosition();
int dy = adapterView.getHeight();
final DisplayListAnimator[] animators = new DisplayListAnimator[adapterView.getChildCount()];
for (int i = 0; i < adapterView.getChildCount(); i++) {
int pos = topPosition + i;
View child = adapterView.getChildAt(i);
float delta = (pos - clickedPosition) * 1.1f;
if (delta == 0) delta = -1;
animators[i] = new DisplayListAnimator(child, dy * delta);
}
adapterView.invalidate();
adapterView.post(new Runnable() {
@Override
public void run() {
new AnimationExecutor((ThreadedRenderer) adapterView.getHardwareRenderer(), animators);
}
});
//mHandler.postDelayed(mLaunchActivity, (long) (DURATION * .4));
mLaunchActivity.run();
}
private Runnable mLaunchActivity = new Runnable() {
@Override
public void run() {
startActivity(new Intent(MainActivity.this, SubActivity.class));
overridePendingTransition(0, 0);
}
};
}
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