UI栏按钮摆动动画

Question

我想出了如何创建一个带有按钮的摆动动画link。但是，如果是uibarbuttonitem，则需要transform属性。我希望为这个UIBarButtonItem创建这个摇摆动作。我怎样才能做到这一点？

Answer 1

试试这个，

UIButton *button = [[UIButton alloc] init];
[button setTransform:<#(CGAffineTransform)#>]; // SET YOUR TRANSFORM HERE

UIBarButtonItem *barButton = [[[UIBarButtonItem alloc] initWithCustomView:button] autorelease];
self.navigationItem.leftBarButtonItem = barButton;