创建动画的ImageView的同时改变图像资源 [英] Creating animation on ImageView while changing image resource

问题描述

我只有一个的ImageView 在我的布局，我改变它的资源一个gasture事件检测到。我只是想表明一个动画，同时改变ImageView的资源。我可以使用 ViewFlipper 与一个 ImageView的？

I have only one ImageView in my layout and I am changing its resource when a gasture event detected. I just want to show an animation while changing resource of ImageView. Can I use ViewFlipper with one ImageView?

推荐答案

对于单一ImageView的，你可以使用这个辅助函数：

For a single imageview you can use this helper function:

public static void ImageViewAnimatedChange(Context c, final ImageView v, final Bitmap new_image) {
    final Animation anim_out = AnimationUtils.loadAnimation(c, android.R.anim.fade_out); 
    final Animation anim_in  = AnimationUtils.loadAnimation(c, android.R.anim.fade_in); 
    anim_out.setAnimationListener(new AnimationListener()
    {
        @Override public void onAnimationStart(Animation animation) {}
        @Override public void onAnimationRepeat(Animation animation) {}
        @Override public void onAnimationEnd(Animation animation)
        {
            v.setImageBitmap(new_image); 
            anim_in.setAnimationListener(new AnimationListener() {
                @Override public void onAnimationStart(Animation animation) {}
                @Override public void onAnimationRepeat(Animation animation) {}
                @Override public void onAnimationEnd(Animation animation) {}
            });
            v.startAnimation(anim_in);
        }
    });
    v.startAnimation(anim_out);
}

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