如何让ipad 启动时默认横屏

方法一： plist文件的Supported interface orientations项中将Portrait top和bottom更改为Landscape left和right。 方法二： - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation == UIInterfaceOrientationLandscapeRight||interfaceOrientation == UIInterfaceOrientationLandscapeLeft); }