ios - 如何使用动画更改按钮的位置

Question

按下时更改位置。
UIButton * button =发送者；

CGPoint position = button.frame.origin;
[UIButton setAnimationDuration:1.0];

CGSize size = button.frame.size;
button.frame = CGRectMake(position.x + 80,position.y,size.width,size.height);

Answer 1

尝试这个:

[UIView animateWithDuration:1.0 animations:^{
   btn.frame = CGRectOffset(btn.frame, 0, 20);
}];