如何在iphone sdk中像这样旋转uibutton

Question

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如何在iphone sdk中像这样旋转uibutton .....

Answer 1

如果您有IBOutlet对象.

theButton.transform = CGAffineTransformMakeRotation(M_PI / -4);

如果要在视图上创建运行时按钮.

- (void)viewDidLoad {
    [super viewDidLoad];
    UIButton *btn=[UIButton buttonWithType:UIButtonTypeRoundedRect];
    [btn setFrame:CGRectMake(100, 100, 200, 44)];
    btn.transform=CGAffineTransformMakeRotation(M_PI / -4);
    [btn setTitle:@"RakeshBhatt" forState:UIControlStateNormal];
    [self.view addSubview:btn];
}