1 /* 2 * Copyright (C) 2009 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.android.apis.app; 18 19 // Need the following import to get access to the app resources, since this 20 // class is in a sub-package. 21 import com.example.android.apis.R; 22 import com.example.android.apis.view.Controls1; 23 24 import android.app.Activity; 25 import android.content.Intent; 26 import android.os.Bundle; 27 import android.view.View; 28 import android.view.View.OnClickListener; 29 import android.widget.Button; 30 31 32 /** 33 * <p>Example of using a custom animation when transitioning between activities.</p> 34 */ 35 public class Animation extends Activity { 36 @Override 37 protected void onCreate(Bundle savedInstanceState) { 38 super.onCreate(savedInstanceState); 39 40 setContentView(R.layout.activity_animation); 41 42 // Watch for button clicks. 43 Button button = (Button)findViewById(R.id.fade_animation); 44 button.setOnClickListener(mFadeListener); 45 button = (Button)findViewById(R.id.zoom_animation); 46 button.setOnClickListener(mZoomListener); 47 } 48 49 private OnClickListener mFadeListener = new OnClickListener() { 50 public void onClick(View v) { 51 // Request the next activity transition (here starting a new one). 52 startActivity(new Intent(Animation.this, Controls1.class)); 53 // Supply a custom animation. This one will just fade the new 54 // activity on top. Note that we need to also supply an animation 55 // (here just doing nothing for the same amount of time) for the 56 // old activity to prevent it from going away too soon. 57 overridePendingTransition(R.anim.fade, R.anim.hold); 58 } 59 }; 60 61 private OnClickListener mZoomListener = new OnClickListener() { 62 public void onClick(View v) { 63 // Request the next activity transition (here starting a new one). 64 startActivity(new Intent(Animation.this, Controls1.class)); 65 // This is a more complicated animation, involving transformations 66 // on both this (exit) and the new (enter) activity. Note how for 67 // the duration of the animation we force the exiting activity 68 // to be Z-ordered on top (even though it really isn't) to achieve 69 // the effect we want. 70 overridePendingTransition(R.anim.zoom_enter, R.anim.zoom_exit); 71 } 72 }; 73 } 74 75
