问题描述
如何锁定旋转屏幕,我希望我的应用扩展程序仅处于纵向模式。
当我在照片中使用我的扩展时,我可以将屏幕旋转到横向。
How do I lock from rotating screen, I want my app extension to be only in portrait mode.When I'm using my extension inside Photos my I can rotate the screen to landscape.
谢谢
推荐答案
您必须选择:
1-在项目中将横向和纵向设置为支持的界面方向,然后为每个ViewController,你将覆盖支持的界面方向;
1- Set landscape and portrait as supported interface orientation in the project, and then for each ViewController, you will override the supported interface orientation;
2-在项目中只设置纵向模式,在你需要的ViewController中,你可以制作90度轮换
2- Set only portrait mode in the project, and in the ViewController you need it, you can make a 90 degree rotation
self.view.transform = CGAffineTransformMakeRotation(M_PI_2);
编辑:所以你可以这样做。将控制器设置为keyPath UIDeviceOrientationDidChangeNotification
的观察者。然后:
so you can do this. Set your controller as observer for the keyPath UIDeviceOrientationDidChangeNotification
. Then:
-(void)changedOrientation: (NSNotification *)note
{
if (note)
{
UIDevice *dev = (UIDevice *)note.object;
if ([dev orientation] == UIInterfaceOrientationLandscapeRight)
{
self.view.transform = CGAffineTransformMakeRotation(M_PI_2);
}
else if ([dev orientation] == UIInterfaceOrientationPortrait)
{
self.view.transform = CGAffineTransformIdentity;
}
else if ([dev orientation] == UIInterfaceOrientationPortraitUpsideDown)
{
self.view.transform = CGAffineTransformIdentity;
}
else if ([dev orientation] == UIInterfaceOrientationLandscapeLeft)
{
self.view.transform = CGAffineTransformMakeRotation(-M_PI_2);
}
}
}
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