ios 强制横屏大总结

来源：互联网发布：科比2010总决赛数据编辑：程序博客网时间：2024/05/18 01:23

整个项目是竖屏的，不能横屏，但是有个播放界面必须要横屏于是就开始找各种横屏的方法，最后在手机上好使了，但是在pad上横屏启动的时候界面是横屏显示，很是苦恼，就又开始了漫长的找资料，直接上代码

1，配置plist文件和deployemnt Info -> device orientation

（1），plist文件，如图所示，第一项是建立项目时默认有的表示支持手机的屏幕方向（我把支持向右和向左的删了），第二项是后加的表示支持ipad（添加 Supported interface orientations (iPad)）的旋转方向（同样我把向左向右，向上的给删了）

这里写图片描述

（2），deployemnt Info -> device orientation，只选择第一项竖屏。

这里写图片描述

2，开始代码配置（主要讲解push界面的强制横屏）主要是借鉴简书http://www.jianshu.com/p/5c773628caa6这位大神的讲解

（1），AppDelegate.h里面

@property (assign , nonatomic) BOOL isForceLandscape;@property (assign , nonatomic) BOOL isForcePortrait;

AppDelegate.m里面

-(UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window{    if (self.isForceLandscape) {        return UIInterfaceOrientationMaskLandscape;    }else if (self.isForcePortrait){        return UIInterfaceOrientationMaskPortrait;    }    return UIInterfaceOrientationMaskPortrait;}

(2)，在相应的tabBarController里面（我是在viewController里面写的）

#import <UIKit/UIKit.h>#import "BaseViewController.h"@interface RootViewController : BaseViewController@property (strong,nonatomic) UITabBarController *tabBarCon;@end

/// 选择的当前控制器是否可以旋转-(BOOL)shouldAutorotate{    return [self.tabBarCon.selectedViewController shouldAutorotate];}/// 选择的当前控制器是支持的旋转的方向- (UIInterfaceOrientationMask)supportedInterfaceOrientations{    return  [self.tabBarCon.selectedViewController supportedInterfaceOrientations];}///- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation{    return  [self.tabBarCon.selectedViewController preferredInterfaceOrientationForPresentation];}

(3）,在navigationController里面（自己创建的navigationController的子类）

#import <UIKit/UIKit.h>@interface RootNavigationController : UINavigationController//旋转方向 默认竖屏@property (nonatomic , assign) UIInterfaceOrientation interfaceOrientation;@property (nonatomic , assign) UIInterfaceOrientationMask interfaceOrientationMask;

/// 当前的导航控制器是否可以旋转-(BOOL)shouldAutorotate{    return YES;}//设置支持的屏幕旋转方向- (UIInterfaceOrientationMask)supportedInterfaceOrientations {    return self.interfaceOrientationMask;}//设置presentation方式展示的屏幕方向- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {    return self.interfaceOrientation;}

（4）在父类viewController里面

- (void)viewDidLoad {    [super viewDidLoad];    // 表示本类支持旋转    [UIViewController attemptRotationToDeviceOrientation];}

（5），在需要强制横屏的地方调用

- (void)viewWillAppear:(BOOL)animated{    self.navigationController.navigationBar.hidden = YES;    self.navigationController.tabBarController.tabBar.hidden = YES;    // 强制横屏    [self forceOrientationLandscape];    RootNavigationController *nav = (RootNavigationController *)self.navigationController;    nav.interfaceOrientation = UIInterfaceOrientationLandscapeRight;    nav.interfaceOrientationMask = UIInterfaceOrientationMaskLandscapeRight;    //强制翻转屏幕，Home键在右边。    [[UIDevice currentDevice] setValue:@(UIInterfaceOrientationLandscapeRight) forKey:@"orientation"];    //刷新    [UIViewController attemptRotationToDeviceOrientation];}- (void)viewWillDisappear:(BOOL)animated{    //强制旋转竖屏    [self forceOrientationPortrait];    RootNavigationController *navi = (RootNavigationController *)self.navigationController;    navi.interfaceOrientation = UIInterfaceOrientationPortrait;    navi.interfaceOrientationMask = UIInterfaceOrientationMaskPortrait;    //设置屏幕的转向为竖屏    [[UIDevice currentDevice] setValue:@(UIDeviceOrientationPortrait) forKey:@"orientation"];    //刷新    [UIViewController attemptRotationToDeviceOrientation];}

#pragma  mark 横屏设置//强制横屏- (void)forceOrientationLandscape{    AppDelegate *appdelegate=(AppDelegate *)[UIApplication sharedApplication].delegate;    appdelegate.isForceLandscape=YES;    appdelegate.isForcePortrait=NO;    [appdelegate application:[UIApplication sharedApplication] supportedInterfaceOrientationsForWindow:self.view.window];}//强制竖屏- (void)forceOrientationPortrait{    AppDelegate *appdelegate=(AppDelegate *)[UIApplication sharedApplication].delegate;    appdelegate.isForcePortrait=YES;    appdelegate.isForceLandscape=NO;    [appdelegate application:[UIApplication sharedApplication] supportedInterfaceOrientationsForWindow:self.view.window];}

总结，感觉http://www.jianshu.com/p/5c773628caa6这位大神已经总结的很到位了，希望可以帮到需要的人

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