ANDROID_MARS学习笔记_S02_010_Animation

ANDROID_MARS学习笔记_S02_010_Animation_动画效果

一、流程

1.把要实现动画的一系列图片复制到res/drawable文件夹

2.在此文件新建一个xml文件用来组织图片

3.在mainactivity中用imageView.setBackgroundResource(R.drawable.anim_item)来使用这个动画

二、代码
1.xml
(1resdrawable-hdpianim_item.xml

1 <?xml version="1.0" encoding="utf-8"?>
2 <animation-list xmlns:android="http://schemas.android.com/apk/res/android"
3     android:oneshot="false">
4     <item android:drawable="@drawable/x1" android:duration="500" />
5     <item android:drawable="@drawable/x2" android:duration="500" />
6     <item android:drawable="@drawable/x3" android:duration="500" />
7     <item android:drawable="@drawable/x4" android:duration="500" />
8     <item android:drawable="@drawable/x5" android:duration="500" />
9 </animation-list>

2.java

(1)MainActivity.java

 1 package com.animation4_frametoframe;
 2 
 3 import android.app.Activity;
 4 import android.graphics.drawable.AnimationDrawable;
 5 import android.os.Bundle;
 6 import android.view.View;
 7 import android.view.View.OnClickListener;
 8 import android.widget.Button;
 9 import android.widget.ImageView;
10 
11 public class MainActivity extends Activity {
12     
13     private Button button = null;
14     private ImageView imageView = null;
15     @Override
16     protected void onCreate(Bundle savedInstanceState) {
17         super.onCreate(savedInstanceState);
18         setContentView(R.layout.activity_main);
19         imageView = (ImageView)findViewById(R.id.imageViewId);
20         button = (Button)findViewById(R.id.buttonId);
21         button.setOnClickListener(new ButtonListener());
22     }
23 
24     public class ButtonListener implements OnClickListener {
25         @Override
26         public void onClick(View v) {
27             imageView.setBackgroundResource(R.drawable.anim_item);
28             AnimationDrawable animationDrawable = (AnimationDrawable) imageView.getBackground();
29             animationDrawable.start();
30         }
31     }
32 }

三、运行效果