步驟和代碼

• 第一步 ：Appdelegate文件中設(shè)置

#import <UIKit/UIKit.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;

//在AppDelegate.h文件中設(shè)置兩個(gè)屬性
@property(nonatomic, assign) BOOL isForcePortrait;
@property(nonatomic, assign) BOOL isForceLandscape;

@end

//在AppDelegate.m文件中實(shí)現(xiàn)代理方法
-(UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window{
    if (self.isForceLandscape) {
        return UIInterfaceOrientationMaskLandscape;
    }else if (self.isForcePortrait){
        return UIInterfaceOrientationMaskPortrait;
    }else{
        return UIInterfaceOrientationMaskAll;
    }
}

• 第二步：設(shè)置橫豎屏的方法矿辽，寫(xiě)在分類中

//UIDevice+TFDevice.h文件
#import <UIKit/UIKit.h>

@interface UIDevice (TFDevice)
//interfaceOrientation 輸入要強(qiáng)制轉(zhuǎn)屏的方向
+ (void)switchNewOrientation:(UIInterfaceOrientation)interfaceOrientation;
@end

//UIDevice+TFDevice.m文件
#import "UIDevice+TFDevice.h"

@implementation UIDevice (TFDevice)

+ (void)switchNewOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    NSNumber *resetOrientationTarget = [NSNumber numberWithInt:UIInterfaceOrientationUnknown];
    [[UIDevice currentDevice] setValue:resetOrientationTarget forKey:@"orientation"];
    NSNumber *orientationTarget = [NSNumber numberWithInt:interfaceOrientation];
    [[UIDevice currentDevice] setValue:orientationTarget forKey:@"orientation"];
}
@end

• 第三步：設(shè)置橫豎屏

#pragma  mark - 強(qiáng)制橫豎屏設(shè)置
- (void)forceOrientationLandscape { //強(qiáng)制橫屏
    AppDelegate * appDelegate = (AppDelegate *)[UIApplication sharedApplication].delegate;
    appDelegate.isForcePortrait = NO;
    appDelegate.isForceLandscape = YES;
    [UIDevice switchNewOrientation:UIInterfaceOrientationLandscapeRight];
}
- (void)forceOrientationPortrait  { //強(qiáng)制豎屏
    AppDelegate * appDelegate = (AppDelegate *)[UIApplication sharedApplication].delegate;
    appDelegate.isForcePortrait = YES;
    appDelegate.isForceLandscape = NO;
    [UIDevice switchNewOrientation:UIInterfaceOrientationPortrait];
}

注意

• 這個(gè)在展示控制器的時(shí)候需要調(diào)用秋泳，在dismiss或者pop掉控制器的時(shí)候也需要將設(shè)置恢復(fù)原樣益兄。

• 在第三步上強(qiáng)制橫屏的以下這句代碼中卡儒，后面的旋轉(zhuǎn)方向僅僅是告訴屏幕要往橫屏右方向轉(zhuǎn)蛆橡，至于轉(zhuǎn)完之后屏幕能不能也能橫屏左那就要看Appdelegate里面實(shí)現(xiàn)的代理方法怎么實(shí)現(xiàn)的了...

 [UIDevice switchNewOrientation:UIInterfaceOrientationLandscapeRight];

DEMO傳送門

參考

iOS強(qiáng)制橫屏或強(qiáng)制豎屏

以上９鞍蟆！九妈！

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