ios - UIView 摆动

Question

如何实现模拟钟摆运动的 UIView(在本例中为 ImageView )的动画？我希望它从左向右摆动并重复。

Answer 1

[UIView animateKeyframesWithDuration:0.3f delay:0.f options:UIViewAnimationOptionRepeat | UIViewAnimationOptionAutoreverse animations:^{
    [self.imgview setFrame:CGRectMake(self.imgview.frame.origin.x + 50 ,self.imgview.frame.origin.y, self.imgview.frame.size.width, self.imgview.frame.size.height)];

} completion:^(BOOL finished) {

}];