| /* |
| * Copyright (C) 2015 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.graphics.Canvas; |
| import android.graphics.Color; |
| import android.graphics.drawable.ColorDrawable; |
| import android.os.Bundle; |
| import android.support.v7.app.AppCompatActivity; |
| |
| public class TrivialAnimationActivity extends AppCompatActivity { |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| getWindow().setBackgroundDrawable(new ColorDrawable() { |
| int colorValue = 0; |
| int colorDelta = 1; |
| |
| @Override |
| public void draw(Canvas canvas) { |
| colorValue += colorDelta; |
| if (colorValue == 255 || colorValue == 0) { |
| colorDelta *= -1; |
| } |
| |
| setColor(Color.rgb(255, colorValue, 255 - colorValue)); |
| invalidateSelf(); |
| super.draw(canvas); |
| } |
| }); |
| } |
| } |