首先選擇支持的旋轉方向（兩種方法，推薦第二種）
(2)直接上圖，（勾選即可）
2.在AppDelegate中添加屬性方法
在.h中添加一個屬性allowRotation
@interfaceAppDelegate: UIResponder@property(strong, nonatomic) UIWindow *window;@property(nonatomic,assign)BOOL allowRotation;//是否允許轉向@end
.m中添加下面的方法
- (UIInterfaceOrientationMask)application:(UIApplication*)application supportedInterfaceOrientationsForWindow:(nullableUIWindow*)window{if(_allowRotation ==YES) {returnUIInterfaceOrientationMaskLandscapeRight;? ? }else{return(UIInterfaceOrientationMaskPortrait);? ? }}
3.在你需要旋轉的控制器.m中添加一下方法
- (void)setNewOrientation:(BOOL)fullscreen{if(fullscreen) {NSNumber*resetOrientationTarget = [NSNumbernumberWithInt:UIInterfaceOrientationUnknown];? ? ? ? [[UIDevicecurrentDevice] setValue:resetOrientationTarget forKey:@"orientation"];NSNumber*orientationTarget = [NSNumbernumberWithInt:UIInterfaceOrientationLandscapeRight];? ? ? ? [[UIDevicecurrentDevice] setValue:orientationTarget forKey:@"orientation"];? ? }else{NSNumber*resetOrientationTarget = [NSNumbernumberWithInt:UIInterfaceOrientationUnknown];? ? ? ? [[UIDevicecurrentDevice] setValue:resetOrientationTarget forKey:@"orientation"];NSNumber*orientationTarget = [NSNumbernumberWithInt:UIInterfaceOrientationPortrait];? ? ? ? [[UIDevicecurrentDevice] setValue:orientationTarget forKey:@"orientation"];? ? }}
4.點擊旋轉按鈕調用- (void)setNewOrientation:(BOOL)fullscreen方法
//橫豎屏切換按鈕方法-(void)screen{//記著#import "AppDelegate.h"AppDelegate * appDelegate = (AppDelegate *)[UIApplicationsharedApplication].delegate;if(_fullScreen ) {//橫屏情況下，點擊此按鈕變為豎屏appDelegate.allowRotation =NO;//設置豎屏[selfsetNewOrientation:NO];//調用轉屏代碼self.navigationController.navigationBar.hidden =NO;//navbar消失[selfsetViewFrame:NO];//豎屏布局}else{//豎屏情況下，點擊此按鈕變為橫屏appDelegate.allowRotation =YES;////設置橫屏[selfsetNewOrientation:YES];////調用轉屏代碼self.navigationController.navigationBar.hidden =YES;//navbar出現[selfsetViewFrame:YES];//橫屏布局}}
3.獲取當前屏幕是豎屏還是橫屏
#import"AppDelegate.h"
@interfaceJGCameraViewController()
@property(nonatomic,assign)UIInterfaceOrientationinterfaceOrientation;
@end
- (void)viewWillAppear:(BOOL)animated {
[superviewWillAppear:animated];//改變AppDelegate的appdelegete.allowRotation屬性AppDelegate*appdelegete = (AppDelegate*)[UIApplicationsharedApplication].delegate;appdelegete.allowRotation=YES;self.interfaceOrientation=1;
}
- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation duration:(NSTimeInterval)duration {
self.interfaceOrientation= interfaceOrientation;switch(interfaceOrientation) {caseUIInterfaceOrientationPortrait://home健在下break;
caseUIInterfaceOrientationPortraitUpsideDown:
//home健在上
break;
caseUIInterfaceOrientationLandscapeLeft:
//home健在左
break;
caseUIInterfaceOrientationLandscapeRight://home健在右
break;
default:
break;
}
}
