UISlider *slider = [[UISlider alloc] initWithFrame:CGRectMake(200, 200, 400,20)];
CGAffineTransform rotation = CGAffineTransformMakeRotation(M_PI*1.5);
[slider setTransform:rotation];
[self.view addSubview:slider];
CGAffineTransform rotation = CGAffineTransformMakeRotation(M_PI*1.5);
[slider setTransform:rotation];
[self.view addSubview:slider];
使用UISlider创建滑块控件
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