How to make Rotate3dAnimation more smoother?

Question

In my app I am using Rotate3dAnimation to show a Google map. The code is working fine, but the animation is not smooth, some lines are also visible while rotating the view.

Answer 1

I will just give a small hint; however right now I am so busy at work I can not implement this.

The steps are

• get your drawing cache Bitmap
• set your content to an imageview only with this Bitmap
• apply the animation to this imageview
• at the end of the animation re set your content

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This I believe will maximize the performance.

I will try to write some code later.

CODE

View longLivingReference; //keep a reference
private void applyRotation(int position, float start, float end) {
    longLivingReference = findViewById(R.id.event_container);
    longLivingReference .setDrawingCacheEnabled(true);
    Bitmap bitmapForAnimation = Bitmap.createBitmap(longLivingReference.getDrawingCache());
    ImageView iv = new ImageView(mContext);
    iv = new ImageView(mContext);
    iv.setImageBitmap(bitmapForAnimation);
    setContentView(iv);

    final float centerX = mContainer.getWidth() / 2.0f;
    final float centerY = mContainer.getHeight() / 2.0f;
    final Rotate3dAnimation rotation = new Rotate3dAnimation(start, end, centerX, centerY, 310.0f, true);
    rotation.setDuration(500);
    rotation.setFillAfter(true);
    rotation.setInterpolator(new AccelerateInterpolator());
    rotation.setAnimationListener(yourAnimationListener {
        //whatever your AnimationListener is, you can call super.onAnimationEnd if needed
        @Override
        public void onAnimationEnd(Animation animation) {
            setContentView(longLivingReference);
        }
    });
    iv.startAnimation(rotation);
}