| /* |
| * Copyright (C) 2017 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.uibench; |
| |
| import android.animation.PropertyValuesHolder; |
| import android.animation.ValueAnimator; |
| import android.graphics.Color; |
| import android.os.Bundle; |
| import androidx.appcompat.app.AppCompatActivity; |
| import android.util.DisplayMetrics; |
| import android.view.View; |
| import android.view.ViewGroup.LayoutParams; |
| import android.widget.FrameLayout; |
| |
| /** |
| * Tests resizing of a View backed by a hardware layer. |
| */ |
| public class ResizeHWLayerActivity extends AppCompatActivity { |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| DisplayMetrics metrics = getResources().getDisplayMetrics(); |
| int width = metrics.widthPixels; |
| int height = metrics.heightPixels; |
| View child = new View(this); |
| child.setBackgroundColor(Color.BLUE); |
| child.setLayoutParams(new FrameLayout.LayoutParams(width, height)); |
| child.setLayerType(View.LAYER_TYPE_HARDWARE, null); |
| PropertyValuesHolder pvhWidth = PropertyValuesHolder.ofInt("width", width, 1); |
| PropertyValuesHolder pvhHeight = PropertyValuesHolder.ofInt("height", height, 1); |
| final LayoutParams params = child.getLayoutParams(); |
| ValueAnimator animator = ValueAnimator.ofPropertyValuesHolder(pvhWidth, pvhHeight); |
| animator.setRepeatMode(ValueAnimator.REVERSE); |
| animator.setRepeatCount(ValueAnimator.INFINITE); |
| animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { |
| @Override |
| public void onAnimationUpdate(ValueAnimator valueAnimator) { |
| params.width = (Integer)valueAnimator.getAnimatedValue("width"); |
| params.height = (Integer)valueAnimator.getAnimatedValue("height"); |
| child.requestLayout(); |
| } |
| }); |
| animator.start(); |
| setContentView(child); |
| } |
| } |