AnimationSet动画集合类的使用

//定义四种类型的Animation
        final Animation translAnimation = new TranslateAnimation(0, 300, 0, 300);
        final Animation scaleAnimation = new ScaleAnimation(0f, 1f, 0f, 1f,
                Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
                0.5f);
        final Animation alphAnimation = new AlphaAnimation(0.1f, 0.8f);
        final Animation rotateAnimation = new RotateAnimation
                (0f, 360f,Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,0.5f);
        
//设置点击事件
bt3.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                
                //如果iv1没有选择图片，注意是getDrawable

                if (iv1.getDrawable()==null)
                {
                    Toast.makeText(ImChoose.this, "请选择图片", Toast.LENGTH_SHORT).show();
                }
                else{
                    
                //设置延迟时间
                translAnimation.setDuration(5000);
                scaleAnimation.setDuration(5000);
                alphAnimation.setDuration(5000);
                rotateAnimation.setDuration(5000);
                //定义一个AnimationSet

                AnimationSet set = new AnimationSet(true); 
                //设置set添加四种类型的AnimationSet

                set.addAnimation(translAnimation);
                set.addAnimation(scaleAnimation);
                set.addAnimation(alphAnimation); 
                set.addAnimation(rotateAnimation); 
                //设置哪个图片用set
                iv1.setAnimation(set); 
                //启动set
                set.startNow(); } } });