转载自:https://www.cnblogs.com/zxykit/p/5157729.html
注意:Apple在3.0以后都不支持这个办法了,这个办法已经成为了私有的了,但是要跳过AppStroe的审核,需要一点巧妙的办法。
不要直接调用[[UIDevice currentDevice] setOrientation:UIInterfaceOrientationLandscapeRight]这样的办法来强制性的横屏,这样导致你的程序是很难通过AppStore审核的。但是你可以选择使用performSelector的办法来调用它。具体就几行代码如下:
//强制横屏
if([[UIDevice currentDevice]respondsToSelector:@selector(setOrientation:)]) {
[[UIDevice currentDevice]performSelector:@selector(setOrientation:)
withObject:(id)UIInterfaceOrientationLandscapeRight];
}
在手动设置屏幕旋转的代码前,设置先将屏幕旋转至其他方向,再旋转至最终的方向。
#pragma mark ---- 设置屏幕方向
- (void)setNewOrientation:(BOOL)fullscreen
{
if (fullscreen) {
NSNumber *resetOrientationTarget = [NSNumber numberWithInt:UIInterfaceOrientationUnknown];
[[UIDevice currentDevice] setValue:resetOrientationTarget forKey:@"orientation"];
NSNumber *orientationTarget = [NSNumber numberWithInt:UIInterfaceOrientationLandscapeLeft];
[[UIDevice currentDevice] setValue:orientationTarget forKey:@"orientation"];
}else{
NSNumber *resetOrientationTarget = [NSNumber numberWithInt:UIInterfaceOrientationUnknown];
[[UIDevice currentDevice] setValue:resetOrientationTarget forKey:@"orientation"];
NSNumber *orientationTarget = [NSNumber numberWithInt:UIInterfaceOrientationPortrait];
[[UIDevice currentDevice] setValue:orientationTarget forKey:@"orientation"];
}
}