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
(1res\drawable-hdpi\anim_item.xml

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

2.java

(1)MainActivity.java

 package com.animation4_frametoframe;

 import android.app.Activity;
 import android.graphics.drawable.AnimationDrawable;
 import android.os.Bundle;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.Button;
 import android.widget.ImageView;

 public class MainActivity extends Activity {

     private Button button = null;
     private ImageView imageView = null;
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         imageView = (ImageView)findViewById(R.id.imageViewId);
         button = (Button)findViewById(R.id.buttonId);
         button.setOnClickListener(new ButtonListener());
     }

     public class ButtonListener implements OnClickListener {
         @Override
         public void onClick(View v) {
             imageView.setBackgroundResource(R.drawable.anim_item);
             AnimationDrawable animationDrawable = (AnimationDrawable) imageView.getBackground();
             animationDrawable.start();
         }
     }
 }

三、运行效果