android – How to rotate a drawable by ObjectAnimator?-ThrowExceptions

Exception or error:

Alphaing a drawable work well like this:

if(mAlphaAnimation == null){
        mAlphaAnimation = ObjectAnimator.ofFloat(this, "alpha", 0.0f,1.0f).setDuration(TARGET_ANIM_ALPHA_DURATION);
        mAlphaAnimation.setInterpolator(new AccelerateDecelerateInterpolator());
        mAlphaAnimation.setStartDelay(TARGET_ANIM_ALPHA_DELAY_BASE*power);
        mAlphaAnimation.setRepeatCount(ValueAnimator.INFINITE);
        mAlphaAnimation.setRepeatMode(ValueAnimator.REVERSE);
        mAlphaAnimation.addUpdateListener(this);
 }

But if I want rotate a drawable like below , it don’s work.

private void createRotateAnim(float fromDegress,float toDegress,int duration){
    if(mRotateAnimation == null){
        mRotateAnimation = ObjectAnimator.ofFloat(this, "rotation",fromDegress,toDegress).setDuration(duration);
        mRotateAnimation.setStartDelay(100);
        mRotateAnimation.setInterpolator(new AccelerateInterpolator());
        mRotateAnimation.addUpdateListener(this);
    }
}

Anyone can help me to fix this issue, or these is any other way to create a rotation drawable animation .

I am sorry to my poor English.

How to solve:

Try this simple Rotation Animation applied to a image.

 ImageView imageview = (ImageView)findViewById(R.id.myimage);
 RotateAnimation rotate = new RotateAnimation(180, 360, Animation.RELATIVE_TO_SELF,    
 0.5f,  Animation.RELATIVE_TO_SELF, 0.5f);
  rotate.setDuration(500);
 imageview.startAnimation(rotate);

This answer is just for a sake of question, it is correct that Clickable area will be different than View‘s current position. Please check this question for making clickable area correct. Button is not clickable after TranslateAnimation

###

Try with ObjectAnimator instead.

ImageView imageview = (ImageView)findViewById(R.id.image);

ObjectAnimator imageViewObjectAnimator = ObjectAnimator.ofFloat(imageview ,
                    "rotation", 0f, 360f);
            imageViewObjectAnimator.setDuration(1000); // miliseconds
            imageViewObjectAnimator.start();

EDIT
Since this question draw some attention let me to explain why to use ObjectAnimator instead of other Transition animators

The thing about using ObjectAnimator is that it’s moving both the visible and the clickable area of the item, if you use another animation method, for example Transition Animation or some other Animators, and let’s say if you want to move the Button from the bottom left of the screen to the top left, it will only move the visible area but not the Button itself, the clickable area will still be on the previous position, in this case the clickable area will still be on the bottom left instead of the top left where you moved the button.

If you do the same with ObjectAnimator, both the visible area, and the clickable area will move the the desired location.

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