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