Android多线程之控制animation走走停停

原创文章，转载请标注出处----

 

首先，定义一个rotate的animation：

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<rotate 
        android:interpolator="@android:anim/accelerate_decelerate_interpolator"
        android:fromDegrees="0" 
        android:toDegrees="+360"         
        android:pivotX="50%" 
        android:pivotY="50%"     
        android:duration="3000" />  
</set>

 在code里面，实例化一个freshThrad去画animation。点击stop的时候，call freshThrad.interrupt();将此时wait的freshThrad唤醒，调用imagview的clearAnimation方法，停止动画。

package com.animation.test;

import android.app.Activity;
import android.graphics.drawable.AnimationDrawable;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.animation.RotateAnimation;
import android.view.animation.Animation.AnimationListener;
import android.widget.Button;
import android.widget.ImageView;

public class AnimationTest extends Activity implements OnClickListener{
	private ImageView icon;
    private Animation animation;
    private Button btStop;
    private Button btStart;
    private boolean runFlag = true;
    private MyThread freshThrad;
    private final static int START_ANIMATION = 100;
    private final static int STOP_ANIMATION = 101;
    Handler mHandler = new Handler(){

		@Override
		public void handleMessage(Message msg) {
			// TODO Auto-generated method stub
			super.handleMessage(msg);
			switch(msg.what){
				case STOP_ANIMATION:
					icon.clearAnimation();
					break;
				case START_ANIMATION:
					icon.startAnimation(animation);
					break;
			}
		}
    	
    };
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        icon = (ImageView)findViewById(R.id.icon);
    	btStop = (Button) findViewById(R.id.stop);
    	btStart = (Button) findViewById(R.id.start);
        btStop.setOnClickListener(this);
        btStart.setOnClickListener(this);
        showAnimation();
        icon.setOnClickListener(this);
    }
	@Override
	public void onClick(View v) {
		// TODO Auto-generated method stub
		switch(v.getId()){
		case R.id.icon:
	        icon.startAnimation(animation);
			break;
		case R.id.stop:
			freshThrad.interrupt();

			break;
		case R.id.start:
			showAnimation();
			break;
		}
	}
	
	private void showAnimation(){
	       animation = AnimationUtils.loadAnimation(this, R.anim.rotate_animation);
	       animation.setAnimationListener(new AnimationListener(){
		
				@Override
				public void onAnimationEnd(Animation animation) {
					// TODO Auto-generated method stub

				icon.startAnimation(animation);					

				}

				@Override
				public void onAnimationRepeat(Animation animation) {
					// TODO Auto-generated method stub
					
				}

				@Override
				public void onAnimationStart(Animation animation) {
					// TODO Auto-generated method stub

				}
	        	
	        });
	       freshThrad = new MyThread();
	       freshThrad.start();
	}
	
	class MyThread extends Thread {
		@Override
		public synchronized void run() {
			// TODO Auto-generated method stub				
			Message msg1 = new Message();
			msg1.what = START_ANIMATION;
			mHandler.sendMessage(msg1);
				
			try {
				this.wait();
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
	
				Log.d("debug", "stop therad");
				Message msg2 = new Message();
				msg2.what = STOP_ANIMATION;
				mHandler.sendMessage(msg2);
				e.printStackTrace();					

			}
		}	
	}
}

 电击start之后，重新起thread开始动画。