How to fade in picture in ImageView loaded from url

Question

I would like to apply a fade-in animation to an ImageView to create the effect that the image, which is loaded from a url, fades in when the download is completed.

I kn

Answer 1

set the ImageView visibility to INVISIBLE or GONE set setAnimationListener on your animation. and when the onAnimationEnd change the visibility of the ImageView.

fadeInAnimation.setAnimationListener(new AnimationListener() {
        @Override
        public void onAnimationEnd(Animation arg0) {

           // let make your image visible


        }

        @Override
        public void onAnimationRepeat(Animation animation) {}
        @Override
        public void onAnimationStart(Animation animation) {}
    });

Answer 2

You can use: TransitionDrawable, simple code as follows:

        // Transition drawable with a transparent drwabale and the final bitmap
        final TransitionDrawable td =
                new TransitionDrawable(new Drawable[] {
                        new ColorDrawable(Color.TRANSPARENT),
                        new BitmapDrawable(mResources, bitmap)
                });
        // Set background to loading bitmap
        imageView.setBackgroundDrawable(
                new BitmapDrawable(mResources, mLoadingBitmap));

        imageView.setImageDrawable(td);
        td.startTransition(FADE_IN_TIME);