试过了下面两个方法都无效，请问该怎么办？

Question

ipad 应用 锁定lanscape状态不变，无论怎么旋转，如何实现

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 

{ 

return UIInterfaceOrientationIsLandscape(interfaceOrientation);

}

还有

(BOOL)shouldAutorotateToInterfaceOrientation:UIInterfaceOrientation)interfaceOrientation 
{ 
return (interfaceOrientation == UIInterfaceOrientationLandscapeRight);
}

我用的是ios6

Answer 1

如果整个程序都要横屏，plist中修改下最省事。 <key>UISupportedInterfaceOrientations</key> <array> <string>UIInterfaceOrientationLandscapeLeft</string> </array>或者代码中viewcontroller加，-&nbsp;(BOOL)shouldAutorotate {&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;NO; } -&nbsp;(NSUInteger)supportedInterfaceOrientations {&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;UIInterfaceOrientationMaskLandscapeRight; } -&nbsp;(UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;UIInterfaceOrientationLandscapeRight; } -&nbsp;(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;(interfaceOrientation&nbsp;==&nbsp;UIInterfaceOrientationLandscapeRight); }