android view(image,imageButton,...)的旋转

空话不多，上代码：
                final Animation rotateAnimation = new RotateAnimation(0f, 360f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
		final ImageButton buttonDraw = (ImageButton) findViewById(R.id.drawer_button);
		buttonDraw.setOnClickListener(new OnClickListener() 
		{
			@Override
			public void onClick(View v)
                        {
				rotateAnimation.setDuration(300);
				buttonDraw.startAnimation(rotateAnimation);
			}
		});空话不多，上代码：
                final Animation rotateAn