1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.example.renderthread; 18 19 import android.app.Activity; 20 import android.os.Bundle; 21 import android.os.Process; 22 import android.os.SystemClock; 23 import android.view.View; 24 import android.view.ViewGroup; 25 26 public class SubActivity extends Activity { 27 @Override onCreate(Bundle savedInstanceState)28 protected void onCreate(Bundle savedInstanceState) { 29 super.onCreate(savedInstanceState); 30 long before = SystemClock.currentThreadTimeMillis(); 31 setContentView(R.layout.activity_sub); 32 getActionBar().setTitle("SubActivity"); 33 // Simulate being a real app! 34 while (SystemClock.currentThreadTimeMillis() - before < 100) { 35 View v = new View(this, null); 36 } 37 } 38 39 @Override onResume()40 protected void onResume() { 41 super.onResume(); 42 ViewGroup container = findViewById(R.id.my_container); 43 int dx = getWindowManager().getDefaultDisplay().getWidth(); 44 for (int i = 0; i < container.getChildCount(); i++) { 45 View child = container.getChildAt(i); 46 int dir = child.getId() == R.id.from_left ? 1 : -1; 47 child.setTranslationX(dx * dir); 48 child.animate().translationX(0).setDuration(MainActivity.DURATION); 49 } 50 View bg = findViewById(R.id.bg_container); 51 bg.setAlpha(0f); 52 bg.animate().alpha(1f).setDuration(MainActivity.DURATION); 53 } 54 55 @Override onBackPressed()56 public void onBackPressed() { 57 super.onBackPressed(); 58 overridePendingTransition(0, 0); 59 } 60 } 61