哎，网上各种代码，各说各的，代码都不全，废话不多说，上代码
在AppDelegate.m中
- (UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {
if ([manager sharedManager].isCanLan) {
return [manager sharedManager].orientation;
}
return UIInterfaceOrientationMaskPortrait；
}
在UINavigationController的子类中
- (UIInterfaceOrientationMask)supportedInterfaceOrientations {
return self.topViewController.supportedInterfaceOrientations;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
return self.topViewController.preferredInterfaceOrientationForPresentation;
}
- (BOOL)shouldAutorotate {
return self.topViewController.shouldAutorotate;
}
在UITabBarController中
- (UIInterfaceOrientationMask)supportedInterfaceOrientations {
return self.selectedViewController.supportedInterfaceOrientations;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
return self.selectedViewController.preferredInterfaceOrientationForPresentation;
}
- (BOOL)shouldAutorotate {
return self.selectedViewController.shouldAutorotate;
}
// 监听方向改变
- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator {
[super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
// 根据业务需要更新UI，这里不做填充了，每个类都有这个方法，可以把他放在要实现的类中
}
在要实现横竖屏切换的类中
.h中
@property (nonatomic, assign) UIInterfaceOrientationMask orientation;
- (UIInterfaceOrientation)getDeviceOrientation;
.m中
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
UIInterfaceOrientation currentOrientation = [self getDeviceOrientation];
if (self.orientation == UIInterfaceOrientationMaskPortrait && currentOrientation != UIInterfaceOrientationPortrait) {// 竖屏状态
// 切竖屏
[manager sharedManager].isCanLan = NO;
[self setScreenOrientation:UIInterfaceOrientationMaskPortrait controller:self];
} else if (self.orientation == UIInterfaceOrientationMaskLandscapeLeft && currentOrientation != UIInterfaceOrientationLandscapeLeft) {// 横屏状态
// 切横屏
[manager sharedManager].isCanLan = YES;
[self setScreenOrientation:UIInterfaceOrientationMaskLandscapeLeft controller:self];
} else if (self.orientation == UIInterfaceOrientationMaskLandscapeRight && currentOrientation != UIInterfaceOrientationLandscapeRight) {// 横屏状态
// 切换屏
[manager sharedManager].isCanLan = YES;
[self setScreenOrientation:UIInterfaceOrientationMaskLandscapeLeft controller:self];
}
}
}
- (void)viewWillDisappear:(BOOL)animated {
[super viewWillDisappear:animated];
UIInterfaceOrientation currentOrientation = [self getDeviceOrientation];
if (currentOrientation != UIInterfaceOrientationPortrait) {// 恢复成竖屏
[manager sharedManager].isCanLan = NO;
[self setScreenOrientation:UIInterfaceOrientationMaskPortrait controller:self];
}
}
- (UIInterfaceOrientation)getDeviceOrientation {
__block UIInterfaceOrientation orientation = UIInterfaceOrientationUnknown;
if (@available(iOS 13.0, *)) {
NSSet *connectedScenes = UIApplication.sharedApplication.connectedScenes;
for (UIScene *scene in connectedScenes) {
if ([scene isKindOfClass:[UIWindowScene class]]) {
UIWindowScene *windowScene = (UIWindowScene *)scene;
orientation = windowScene.interfaceOrientation;
break;
}
}
} else {
// 对于iOS 13以下版本，使用应用程序的状态栏方向
orientation = [[UIApplication sharedApplication] statusBarOrientation];
}
// 如果还是未知，则使用UIDevice作为后备
if (orientation == UIInterfaceOrientationUnknown) {
UIDeviceOrientation deviceOrientation = [UIDevice currentDevice].orientation;
if (UIDeviceOrientationIsValidInterfaceOrientation(deviceOrientation)) {
switch (deviceOrientation) {
case UIDeviceOrientationPortrait:
orientation = UIInterfaceOrientationPortrait;
break;
case UIDeviceOrientationPortraitUpsideDown:
orientation = UIInterfaceOrientationPortraitUpsideDown;
break;
case UIDeviceOrientationLandscapeLeft:
orientation = UIInterfaceOrientationLandscapeRight;// 由于设备与界面方向不同;
break;
case UIDeviceOrientationLandscapeRight:
orientation = UIInterfaceOrientationLandscapeLeft;// 由于设备与界面方向不同
break;
default:
orientation = UIInterfaceOrientationPortrait;
break;
}
}
}
return orientation;
}
手动强制横竖屏的代码
- (void)setScreenOrientation:(UIInterfaceOrientationMask)orientation controller:(UIViewController *)H5{
UIInterfaceOrientation currentOrientation = [H5 getDeviceOrientation];
UIInterfaceOrientation targetOrientation;
if (orientation == UIInterfaceOrientationMaskPortrait) {
targetOrientation = UIInterfaceOrientationPortrait;
} else if (orientation == UIInterfaceOrientationMaskLandscapeLeft) {
targetOrientation = UIInterfaceOrientationLandscapeLeft;
} else if (orientation == UIInterfaceOrientationMaskLandscapeRight) {
targetOrientation = UIInterfaceOrientationLandscapeRight;
} else {
NSLog(@"不支持的方向");
return;
}
// 检查是否需要旋转
if (currentOrientation == targetOrientation) {
// 不旋转但是可能需要更新UI，根据业务逻辑来
[self updateUI];
return;
}
// 这里用来设置具体支持的方法，appdelegate中会用到
[manager sharedManager].orientation = orientation;
@try {
if (@available(iOS 16.0, *)) {
// iOS 16 及以上版本
NSArray *array = [[[UIApplication sharedApplication] connectedScenes] allObjects];
UIWindowScene *scene = [array firstObject];
UIWindowSceneGeometryPreferencesIOS *geometryPreferences =
[[UIWindowSceneGeometryPreferencesIOS alloc] initWithInterfaceOrientations:orientation];
[H5 setNeedsUpdateOfSupportedInterfaceOrientations];
[scene requestGeometryUpdateWithPreferences:geometryPreferences errorHandler:^(NSError *_Nonnull error) {
NSLog(@"错误：%@",error);
}];
} else {
// iOS 16 以下版本
UIDeviceOrientation deviceOrientation;
switch (targetOrientation) {
case UIInterfaceOrientationPortrait:
deviceOrientation = UIDeviceOrientationPortrait;
break;
case UIInterfaceOrientationLandscapeLeft:
deviceOrientation = UIDeviceOrientationLandscapeRight;
break;
case UIInterfaceOrientationLandscapeRight:
deviceOrientation = UIDeviceOrientationLandscapeLeft;
break;
default:
deviceOrientation = UIDeviceOrientationPortrait;
}
if ([[UIDevice currentDevice] respondsToSelector:@selector(setOrientation:)]) {
SEL selector = NSSelectorFromString(@"setOrientation:");
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:
[UIDevice instanceMethodSignatureForSelector:selector]];
[invocation setSelector:selector];
[invocation setTarget:[UIDevice currentDevice]];
[invocation setArgument:&deviceOrientation atIndex:2];
[invocation invoke];
}
}
} @catch (NSException *exception) {
} @finally {
}
}
搞完！！！！！！！！！！！！！！！！！！！！！！！！！用到了辛苦，点个赞，谢谢！
