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