我正在尝试制作一个在屏幕上滑动时旋转的图像视图。我设置了一个180度的旋转动画,它自己工作。我设置了一个翻译动画,它自己工作。当我将它们组合在一起时,我会得到一个形成大螺旋的imageview。我希望imageview在翻译时围绕imageview的中心旋转。
AnimationSet animSet = new AnimationSet(true);
//Translate upwards and to the right.
TranslateAnimation anim =
new TranslateAnimation(
Animation.ABSOLUTE, 0.0f, Animation.ABSOLUTE, +80.0f,
Animation.ABSOLUTE, 0.0f, Animation.ABSOLUTE, -100.0f
);
anim.setInterpolator(new DecelerateInterpolator());
anim.setDuration(400);
animSet.addAnimation(anim);
//Rotate around center of Imageview
RotateAnimation ranim = new RotateAnimation(0f, 180f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); //, 200, 200); // canvas.getWidth() / 2, canvas.getHeight() / 2);
ranim.setDuration(400);
ranim.setInterpolator(new DecelerateInterpolator());
animSet.addAnimation(ranim);
imageBottom.startAnimation(animSet);