点击界面产生气泡，气泡效果~

package com.ray.bubble;





import android.app.Activity;

import android.content.Context;

import android.graphics.drawable.AnimationDrawable;

import android.os.Bundle;

import android.view.MotionEvent;

import android.view.View;

import android.view.Window;

import android.view.WindowManager;

import android.view.View.OnTouchListener;

import android.widget.FrameLayout;

import android.widget.ImageView;





public class BubbleExplosion extends Activity {

private FrameLayout fl;

private ExplosionView exv1;

private AnimationDrawable exa1;

private Contact contact;

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

//set full screen

requestWindowFeature(Window.FEATURE_NO_TITLE);

getWindow().setFlags(WindowManager.LayoutParams. FLAG_FULLSCREEN ,

WindowManager.LayoutParams. FLAG_FULLSCREEN);

fl = new FrameLayout(this);

fl.setBackgroundResource(R.drawable.bg);



exv1 = new ExplosionView(this);

exv1.setVisibility(View.INVISIBLE);

exv1.setBackgroundResource(R.anim.explosion);

exa1 = (AnimationDrawable)exv1.getBackground();

fl.addView(exv1);

fl.setOnTouchListener(new LayoutListener());

setContentView(fl);

}



class ExplosionView extends ImageView{





public ExplosionView(Context context) {

super(context);

}

//handle the location of the explosion

public void setLocation(int top,int left){

this.setFrame(left, top, left+40, top+40);

}

}



class LayoutListener implements OnTouchListener{





public boolean onTouch(View v, MotionEvent event) {

//first u have to stop the animation,or if the animation

//is starting ,u can start it again!

exv1.setVisibility(View.INVISIBLE);

exa1.stop();

float x = event.getX();

float y = event.getY();

exv1.setLocation((int)y-20, (int)x-20);

exv1.setVisibility(View.VISIBLE);

exa1.start();

return false;

}



}

}

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