ios - 用于 ipad 和 iphone 的 UIlabel 文本对齐

Question

我正在开发一个有一个标签的通用应用程序。当我旋转屏幕时，标签文本对齐方式变得不同。

Answer 1

UILabel确保为正确设置自动调整大小属性

Answer 2

- (void) handleRotations:(UIRotationGestureRecognizer *)paramSender{
 if (self.helloWorldLabel == nil){
}
return;
/* Take the previous rotation and add the current rotation to it */
self.helloWorldLabel.transform = CGAffineTransformMakeRotation(self.rotationAngleInRadians +
paramSender.rotation);
/* At the end of the rotation, keep the angle for later use */ if (paramSender.state == UIGestureRecognizerStateEnded){
}
self.rotationAngleInRadians += paramSender.rotation;