| /* |
| * 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.android.test.hwui; |
| |
| import android.app.Activity; |
| import android.content.Context; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.Canvas; |
| import android.graphics.Paint; |
| import android.graphics.PorterDuff; |
| import android.graphics.PorterDuffXfermode; |
| import android.os.Bundle; |
| import android.util.Log; |
| import android.view.Gravity; |
| import android.view.View; |
| import android.view.animation.Animation; |
| import android.view.animation.ScaleAnimation; |
| import android.widget.FrameLayout; |
| |
| @SuppressWarnings({"UnusedDeclaration"}) |
| public class BitmapsActivity extends Activity { |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| final BitmapsView view = new BitmapsView(this); |
| final FrameLayout layout = new FrameLayout(this); |
| layout.addView(view, new FrameLayout.LayoutParams(480, 800, Gravity.CENTER)); |
| setContentView(layout); |
| |
| ScaleAnimation a = new ScaleAnimation(1.0f, 2.0f, 1.0f, 2.0f, |
| ScaleAnimation.RELATIVE_TO_SELF, 0.5f, |
| ScaleAnimation.RELATIVE_TO_SELF,0.5f); |
| a.setDuration(2000); |
| a.setRepeatCount(Animation.INFINITE); |
| a.setRepeatMode(Animation.REVERSE); |
| view.startAnimation(a); |
| } |
| |
| static class BitmapsView extends View { |
| private Paint mBitmapPaint; |
| private final Bitmap mBitmap1; |
| private final Bitmap mBitmap2; |
| private final PorterDuffXfermode mDstIn; |
| |
| BitmapsView(Context c) { |
| super(c); |
| |
| mBitmap1 = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset1); |
| mBitmap2 = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset2); |
| |
| Log.d("Bitmap", "mBitmap1.isMutable() = " + mBitmap1.isMutable()); |
| Log.d("Bitmap", "mBitmap2.isMutable() = " + mBitmap2.isMutable()); |
| |
| BitmapFactory.Options opts = new BitmapFactory.Options(); |
| opts.inMutable = true; |
| Bitmap bitmap = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset1, opts); |
| Log.d("Bitmap", "bitmap.isMutable() = " + bitmap.isMutable()); |
| |
| mBitmapPaint = new Paint(); |
| mDstIn = new PorterDuffXfermode(PorterDuff.Mode.DST_IN); |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| super.onDraw(canvas); |
| |
| canvas.translate(120.0f, 50.0f); |
| canvas.drawBitmap(mBitmap1, 0.0f, 0.0f, mBitmapPaint); |
| |
| canvas.translate(0.0f, mBitmap1.getHeight()); |
| canvas.translate(0.0f, 25.0f); |
| canvas.drawBitmap(mBitmap2, 0.0f, 0.0f, null); |
| |
| mBitmapPaint.setAlpha(127); |
| canvas.translate(0.0f, mBitmap2.getHeight()); |
| canvas.translate(0.0f, 25.0f); |
| canvas.drawBitmap(mBitmap1, 0.0f, 0.0f, mBitmapPaint); |
| |
| mBitmapPaint.setAlpha(255); |
| canvas.translate(0.0f, mBitmap1.getHeight()); |
| canvas.translate(0.0f, 25.0f); |
| mBitmapPaint.setColor(0xffff0000); |
| canvas.drawRect(0.0f, 0.0f, mBitmap2.getWidth(), mBitmap2.getHeight(), mBitmapPaint); |
| mBitmapPaint.setXfermode(mDstIn); |
| canvas.drawBitmap(mBitmap2, 0.0f, 0.0f, mBitmapPaint); |
| |
| mBitmapPaint.reset(); |
| } |
| } |
| } |