iOS設(shè)置屏幕方向代碼示例

UIDevice+Orientation.h

#import <UIKit/UIKit.h>

NS_ASSUME_NONNULL_BEGIN

@interface UIDevice ()
/** 設(shè)置屏幕方向璃吧，小于iOS16 */
- (void)setOrientation:(UIInterfaceOrientation)orientation API_DEPRECATED("iOS16+使用setOrientationIOS16:", ios(2.0, 16.0));
@end

@interface UIDevice (Orientation)
/** 設(shè)置屏幕方向奇徒，iOS16+ */
- (void)setOrientationIOS16:(UIInterfaceOrientationMask)orientation API_AVAILABLE(ios(16.0));
- (void)setOrientationIOS16:(UIInterfaceOrientationMask)orientation errorHandler:(nullable void (^)(NSError *error))errorHandler API_AVAILABLE(ios(16.0));
@end

NS_ASSUME_NONNULL_END

UIDevice+Orientation.m

#import "UIDevice+Orientation.h"

@implementation UIDevice (Orientation)

- (void)setOrientationIOS16:(UIInterfaceOrientationMask)orientation
{
    [self setOrientationIOS16:orientation errorHandler:nil];
}

- (void)setOrientationIOS16:(UIInterfaceOrientationMask)orientation errorHandler:(nullable void (^)(NSError *error))errorHandler
{
    if(@available(iOS 16.0,*)){
        UIWindowScene *scene = (UIWindowScene *)UIApplication.sharedApplication.connectedScenes.allObjects.firstObject;
        UIWindowSceneGeometryPreferencesIOS *geometryPreferences = [[UIWindowSceneGeometryPreferencesIOS alloc] init];
        geometryPreferences.interfaceOrientations = orientation;
        if(errorHandler){
            [scene requestGeometryUpdateWithPreferences:geometryPreferences errorHandler:errorHandler];
        }else{
            [scene requestGeometryUpdateWithPreferences:geometryPreferences errorHandler:^(NSError * _Nonnull error) {
                NSLog(@"屏幕旋轉(zhuǎn)失敗: %@",error);
            }];
        }
    }
}
@end

優(yōu)化版本(推薦使用)

UIDevice+Orientation.h

#import <UIKit/UIKit.h>

NS_ASSUME_NONNULL_BEGIN

/**
 用于設(shè)置UI界面方向的自定義枚舉值
 */
typedef NS_ENUM(NSInteger, TKInterfaceOrientation){
    TKInterfaceOrientationPortrait,
    TKInterfaceOrientationPortraitUpsideDown,
    TKInterfaceOrientationLandscapeLeft,
    TKInterfaceOrientationLandscapeRight
};


@interface UIDevice (Orientation)
/** 手動(dòng)設(shè)置屏幕方向 */
- (void)setUIOrientation:(TKInterfaceOrientation)orientation;
/** 手動(dòng)設(shè)置屏幕方向阎姥，新增錯(cuò)誤操作回調(diào) */
- (void)setUIOrientation:(TKInterfaceOrientation)orientation errorHandler:(nullable void (^)(NSError *error))errorHandler;
@end

NS_ASSUME_NONNULL_END

UIDevice+Orientation.m

#import "UIDevice+Orientation.h"

@interface UIDevice ()
/**
 功能：設(shè)置屏幕方向崇摄，小于iOS16(手動(dòng)旋轉(zhuǎn))
 說明: 直接使用擴(kuò)展來訪問是有方法旧噪，即只聲明不實(shí)現(xiàn)赫模。
 注意: 如果出現(xiàn)上架錯(cuò)誤請(qǐng)直接使用以前的老方法實(shí)現(xiàn)慎宾。
 */
- (void)setOrientation:(UIInterfaceOrientation)orientation API_DEPRECATED("iOS16+使用setOrientationIOS16:", ios(2.0, 16.0));
@end

@implementation UIDevice (Orientation)

- (void)setUIOrientation:(TKInterfaceOrientation)orientation
{
    [self setUIOrientation:orientation errorHandler:nil];
}

- (void)setUIOrientation:(TKInterfaceOrientation)orientation errorHandler:(nullable void (^)(NSError *error))errorHandler
{
    NSInteger realOrientation = [self obtainOrientationRealValueWith:orientation];
    if(@available(iOS 16.0,*)){
        UIWindowScene *scene = (UIWindowScene *)UIApplication.sharedApplication.connectedScenes.allObjects.firstObject;
        UIWindowSceneGeometryPreferencesIOS *geometryPreferences = [[UIWindowSceneGeometryPreferencesIOS alloc] init];
        geometryPreferences.interfaceOrientations = realOrientation;
        if(errorHandler){
            [scene requestGeometryUpdateWithPreferences:geometryPreferences errorHandler:errorHandler];
        }else{
            [scene requestGeometryUpdateWithPreferences:geometryPreferences errorHandler:^(NSError * _Nonnull error) {
                NSLog(@"屏幕旋轉(zhuǎn)失敗: %@",error);
            }];
        }
    }else{
        [self setOrientation:realOrientation];
    }
}

/**
 根據(jù)不同的系統(tǒng)版本獲取TKInterfaceOrientation枚舉對(duì)應(yīng)的真實(shí)值
 */
- (NSInteger)obtainOrientationRealValueWith:(TKInterfaceOrientation)orientation
{
    NSInteger real = 0;
    if(@available(iOS 16.0,*)){
        switch (orientation) {
            case TKInterfaceOrientationPortrait:
                real = UIInterfaceOrientationMaskPortrait;
                break;
            case TKInterfaceOrientationPortraitUpsideDown:
                real = UIInterfaceOrientationMaskPortraitUpsideDown;
                break;
            case TKInterfaceOrientationLandscapeLeft:
                real = UIInterfaceOrientationMaskLandscapeLeft;
                break;
            case TKInterfaceOrientationLandscapeRight:
                real = UIInterfaceOrientationMaskLandscapeRight;
                break;
        }
    }else{
        switch (orientation) {
            case TKInterfaceOrientationPortrait:
                real = UIInterfaceOrientationPortrait;
                break;
            case TKInterfaceOrientationPortraitUpsideDown:
                real = UIInterfaceOrientationPortraitUpsideDown;
                break;
            case TKInterfaceOrientationLandscapeLeft:
                real = UIInterfaceOrientationLandscapeLeft;
                break;
            case TKInterfaceOrientationLandscapeRight:
                real = UIInterfaceOrientationLandscapeRight;
                break;
        }
    }
    return real;
}

@end

解釋

擴(kuò)展了一個(gè)沒有實(shí)現(xiàn)的方法：setOrientation:(UIInterfaceOrientation)orientation潜支，來支持iOS16以下的屏幕方向設(shè)置甸赃。
這種寫法就是使用了OC擴(kuò)展的特性來訪問私有方法。
不使用傳統(tǒng)方式調(diào)用其目的就是簡(jiǎn)化代碼冗酿，如果審核不通過就是用老的方式進(jìn)行調(diào)用即可埠对。

參考

iOS16適配-屏幕旋轉(zhuǎn) - 簡(jiǎn)書 (jianshu.com)