首页 > 代码库 > iOS 强制转成横屏的方式 和 通过设备的状态来切换屏幕
iOS 强制转成横屏的方式 和 通过设备的状态来切换屏幕
强制转成横屏:
if ([[UIDevice currentDevice] respondsToSelector:@selector(setOrientation:)]) { SEL selector = NSSelectorFromString(@"setOrientation:"); NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[UIDevice instanceMethodSignatureForSelector:selector]]; [invocation setSelector:selector]; [invocation setTarget:[UIDevice currentDevice]]; int val = UIInterfaceOrientationLandscapeRight; [invocation setArgument:&val atIndex:2]; [invocation invoke]; }}方法二： 通过判断状态栏来设置视图的transform属性。
- (void)deviceOrientationDidChange: (NSNotification *)notification{ UIInterfaceOrientation interfaceOrientation = [[UIApplication sharedApplication] statusBarOrientation]; CGFloat startRotation = [[self valueForKeyPath:@"layer.transform.rotation.z"] floatValue]; CGAffineTransform rotation; switch (interfaceOrientation) { case UIInterfaceOrientationLandscapeLeft: rotation = CGAffineTransformMakeRotation(-startRotation + M_PI * 270.0 / 180.0); break; case UIInterfaceOrientationLandscapeRight: rotation = CGAffineTransformMakeRotation(-startRotation + M_PI * 90.0 / 180.0); break; case UIInterfaceOrientationPortraitUpsideDown: rotation = CGAffineTransformMakeRotation(-startRotation + M_PI * 180.0 / 180.0); break; default: rotation = CGAffineTransformMakeRotation(-startRotation + 0.0); break; } view.transform = rotation;}
iOS 强制转成横屏的方式 和 通过设备的状态来切换屏幕
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