方法一：轉為橫屏模式
//強制橫屏
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：旋轉uiview
- (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;
}
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