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/*
* Copyright (C) 2010 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.google.android.test.hwui;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.os.Bundle;
import android.view.View;
import static android.util.Log.d;
public class HwUiActivity extends Activity {
private static final String LOG_TAG = "HwUi";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new DirtyBitmapView(this));
}
static int dipToPx(Context c, int dip) {
return (int) (c.getResources().getDisplayMetrics().density * dip + 0.5f);
}
static class DirtyBitmapView extends View {
private Bitmap mCache;
DirtyBitmapView(Context c) {
super(c);
final int width = dipToPx(c, 100);
final int height = dipToPx(c, 100);
mCache = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
logGenerationId("Dirty cache created", mCache);
Canvas canvas = new Canvas(mCache);
logGenerationId("Canvas cache created", mCache);
canvas.drawColor(0xffff0000);
logGenerationId("Cache filled", mCache);
Paint p = new Paint();
p.setColor(0xff0000ff);
canvas.drawRect(width / 2.0f, height / 2.0f, width, height, p);
logGenerationId("Cache modified", mCache);
}
private static void logGenerationId(String message, Bitmap b) {
d(LOG_TAG, message);
d(LOG_TAG, " bitmap id=" + b.getGenerationId());
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.drawBitmap(mCache, 0, 0, null);
logGenerationId("Cache drawn", mCache);
}
}
}
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