Animation 动画透明转换

来源：互联网发布：pon网络测试光功率计编辑：程序博客网时间：2024/04/28 06:53

view = (ImageView)getTarget();
        alpha1 = new AlphaAnimation((float)fromAlpha, (float)toAlpha);
        alpha2 = new AlphaAnimation((float)toAlpha,(float)fromAlpha);
        alpha1.setDuration((long)(getDuration()*1000));
        alpha2.setDuration((long)(getDuration()*1000));

        alpha1.setAnimationListener(new AnimationListener() {

            @Override
            public void onAnimationStart(Animation animation) {
                // TODO Auto-generated method stub
            }
            @Override
            public void onAnimationRepeat(Animation animation) {
                // TODO Auto-generated method stub
            }
            @Override
            public void onAnimationEnd(Animation animation) {
                // TODO Auto-generated method stub
                Bitmap bmp = BitmapFactory.decodeResource(TransitionActivity.mContext.getResources(), R.drawable.image2);
                view.setImageBitmap(bmp);
                view.startAnimation(alpha2);
            }
        });

        handler.post(new Runnable() {

            @Override
            public void run() {
                    view.startAnimation(alpha1);
            }
        });
    }