xcode 快速按钮旋转动画以制作类似的动画

Button Rotation Animation in swift to make a similar Animation

提问by Omar Shiltawi

Rotate a button to make a similar animation when clicked?

单击时旋转按钮以制作类似的动画？

_{(source: cloudfront.net)}

_{（来源：cloudfront.net）}

回答by Caleb

Swift 3:

斯威夫特3：

UIView.animate(withDuration: 0.25, animations: {
    myButton.transform = CGAffineTransform(rotationAngle: CGFloat.pi)
})

More information on rotation in Swift: Swift: How can you rotate text for UIButton and UILabel?

有关 Swift 中旋转的更多信息： Swift：如何为 UIButton 和 UILabel 旋转文本？

回答by dorian

You can use a regular rotation on the button:

您可以在按钮上使用常规旋转：

[myButton setTransform:CGAffineTransformMakeRotation(M_PI_4)];

that would rotat + a 45degrees and make it an X :)

那将旋转+ 45度并使其成为X :)

if you want to animate as well try

如果您也想制作动画，请尝试

[UIView animateWithDuration:.5 animations:^{
        myButton.transform = CGAffineTransformMakeRotation(M_PI_4);
    }];