• IOS屏幕旋转监听

    IOS屏幕旋转

    1.设计窗口,添加三个按钮 

    2.添加事件连接

     3.按钮点击事件实现

    先添加三个IBAction

    实现IBAction

    使用旋转立刻生效(iOS16)

    1. -(IBAction)btnFixPortrait:(id)sender{
    2.     //访问应用程序委托成员
    3.     _app.mask = UIInterfaceOrientationMaskPortrait;//设置窗口旋转属性
    4.     [self setNeedsUpdateOfSupportedInterfaceOrientations];//使用设置立刻生效
    5.     //mask = UIInterfaceOrientationMaskPortrait;//只支持竖屏
    6. }
    7.  
    8. -(IBAction)btnFixLand:(id)sender{
    9.     _app.mask = UIInterfaceOrientationMaskLandscape;//设置窗口旋转属性
    10.     [self setNeedsUpdateOfSupportedInterfaceOrientations];//使用设置立刻生效
    11.     //mask = UIInterfaceOrientationMaskLandscape;//只支持横屏
    12. }

    兼容方法:

    1.  
    2. -(IBAction)btnFixPortrait:(id)sender{
    3.     mask = UIInterfaceOrientationMaskPortrait;//只支持竖屏
    4.     if (@available(iOS 16.0, *)) {
    5.         [self setNeedsUpdateOfSupportedInterfaceOrientations];
    6.     } else {
    7.         //IOS 15及以下版本
    8.         AppDelegate* dlg = [UIApplication sharedApplication].delegate;
    9.         [dlg application:[UIApplication sharedApplication] supportedInterfaceOrientationsForWindow:self.view.window];
    10.         [[UIDevice currentDevice] setValue:@(UIDeviceOrientationPortrait) forKey:@"orientation"];
    11.             //刷新
    12.             [UIViewController attemptRotationToDeviceOrientation];
    13.     }
    14. }
    15.  
    16. -(IBAction)btnFixLand:(id)sender{
    17.     mask = UIInterfaceOrientationMaskLandscape;//只支持横屏
    18.     if (@available(iOS 16.0, *)) {
    19.         [self setNeedsUpdateOfSupportedInterfaceOrientations];
    20.     } else {
    21.         //IOS 15及以下版本
    22.         AppDelegate* dlg = [UIApplication sharedApplication].delegate;
    23.         [dlg application:[UIApplication sharedApplication] supportedInterfaceOrientationsForWindow:self.view.window];
    24.         [[UIDevice currentDevice] setValue:@(UIDeviceOrientationLandscapeLeft) forKey:@"orientation"];
    25.             //刷新
    26.             [UIViewController attemptRotationToDeviceOrientation];
    27.     }
    28. }

    如果IOS版本小于15的要去掉下面这两个选项,否则无法旋转屏幕

    4.监听屏幕旋转事件

    1. //注册屏幕旋转监听
    2.     [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
    3.     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(deviceOrientationDidChange) name:UIDeviceOrientationDidChangeNotification object:nil];
    4.     [[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications];
    5.  
    6. //屏幕监听事件处理
    7. -(void)deviceOrientationDidChange{
    8.     NSLog(@"%lu",[self supportedInterfaceOrientations]);
    9.     switch ([UIDevice currentDevice].orientation) {
    10.         case UIInterfaceOrientationUnknown:
    11.             NSLog(@"Unknown");
    12.             break;
    13.         case UIInterfaceOrientationPortrait:
    14.             NSLog(@"Portrait");
    15.             break;
    16.         case UIInterfaceOrientationPortraitUpsideDown:
    17.             NSLog(@"UpsideDown");
    18.             break;
    19.         case UIInterfaceOrientationLandscapeLeft:
    20.             NSLog(@"LandscapeLeft");
    21.             break;
    22.         case UIInterfaceOrientationLandscapeRight:
    23.             NSLog(@"LandscapeRight");
    24.             break;
    25.         default:
    26.             break;
    27.     }
    28. }

     完整示例:

    1. //
    2. //  ViewController.m
    3. //  ios_screen_test
    4. //
    5. //  Created by Hacker X on 2023/10/10.
    6. //
    7.  
    8. #import "ViewController.h"
    9. #import "AppDelegate.h"
    10.  
    11. @interface ViewController ()
    12. #define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width)
    13. #define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)
    14. -(IBAction)btnGetOrientation:(id)sender;
    15. -(IBAction)btnFixPortrait:(id)sender;
    16. -(IBAction)btnFixLand:(id)sender;
    17. @property(nonatomic) UIInterfaceOrientationMask mask;
    18. @end
    19.  
    20. @implementation ViewController
    21. @synthesize mask;
    22. - (void)viewDidLoad {
    23.     [super viewDidLoad];
    24.     [UIViewController attemptRotationToDeviceOrientation];
    25.     mask = UIInterfaceOrientationMaskPortrait|UIInterfaceOrientationMaskLandscape;//支持横竖屏切换
    26.     //注册屏幕旋转监听
    27.     [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
    28.     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(deviceOrientationDidChange) name:UIDeviceOrientationDidChangeNotification object:nil];
    29.     [[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications];
    30.     
    31.     [ViewController getDeviceOrientation];
    32. }
    33.  
    34. -(IBAction)btnGetOrientation:(id)sender{
    35.     [ViewController getDeviceOrientation];
    36. }
    37.  
    38. -(IBAction)btnFixPortrait:(id)sender{
    39.     mask = UIInterfaceOrientationMaskPortrait;//只支持竖屏
    40.     if (@available(iOS 16.0, *)) {
    41.         [self setNeedsUpdateOfSupportedInterfaceOrientations];
    42.     } else {
    43.         //IOS 15及以下版本
    44.         AppDelegate* dlg = [UIApplication sharedApplication].delegate;
    45.         [dlg application:[UIApplication sharedApplication] supportedInterfaceOrientationsForWindow:self.view.window];
    46.         [[UIDevice currentDevice] setValue:@(UIDeviceOrientationPortrait) forKey:@"orientation"];
    47.             //刷新
    48.             [UIViewController attemptRotationToDeviceOrientation];
    49.     }
    50. }
    51.  
    52. -(IBAction)btnFixLand:(id)sender{
    53.     mask = UIInterfaceOrientationMaskLandscape;//只支持横屏
    54.     if (@available(iOS 16.0, *)) {
    55.         [self setNeedsUpdateOfSupportedInterfaceOrientations];
    56.     } else {
    57.         //IOS 15及以下版本
    58.         AppDelegate* dlg = [UIApplication sharedApplication].delegate;
    59.         [dlg application:[UIApplication sharedApplication] supportedInterfaceOrientationsForWindow:self.view.window];
    60.         [[UIDevice currentDevice] setValue:@(UIDeviceOrientationLandscapeLeft) forKey:@"orientation"];
    61.             //刷新
    62.             [UIViewController attemptRotationToDeviceOrientation];
    63.     }
    64. }
    65. +(void)setPortrait:(UIInterfaceOrientationMask) mask{
    66.     mask = UIInterfaceOrientationMaskPortrait;//只支持竖屏
    67. }
    68.  
    69. +(void)setLandscape:(UIInterfaceOrientationMask) mask{
    70.     mask = UIInterfaceOrientationMaskLandscape;//只支持横屏
    71. }
    72.  
    73. +(UIDeviceOrientation)getDeviceOrientation{
    74.     NSLog(@"getDeviceOrientation:%ld",[UIDevice currentDevice].orientation);
    75.     return [UIDevice currentDevice].orientation;
    76. }
    77.  
    78. -(void)deviceOrientationDidChange{
    79.     switch ([UIDevice currentDevice].orientation) {
    80.         case UIInterfaceOrientationUnknown:
    81.             NSLog(@"Unknown");
    82.             break;
    83.         case UIInterfaceOrientationPortrait:
    84.             NSLog(@"Portrait");
    85.             break;
    86.         case UIInterfaceOrientationPortraitUpsideDown:
    87.             NSLog(@"UpsideDown");
    88.             break;
    89.         case UIInterfaceOrientationLandscapeLeft:
    90.             NSLog(@"LandscapeLeft");
    91.             break;
    92.         case UIInterfaceOrientationLandscapeRight:
    93.             NSLog(@"LandscapeRight");
    94.             break;
    95.         default:
    96.             break;
    97.     }
    98. }
    99.  
    100. - (BOOL)prefersStatusBarHidden {
    101.     return NO;
    102. }
    103.  
    104. - (BOOL)shouldAutorotate{
    105.     return YES;
    106. }
    107.  
    108.  
    109. - (UIInterfaceOrientationMask)supportedInterfaceOrientations{
    110.     return mask;
    111. }
    112.  
    113. @end

    上面是针对ViewControlle的,下面是针对 窗口的

    1. - (UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window{
    2.     //return UIInterfaceOrientationMaskAll;
    3.     //return UIInterfaceOrientationMaskPortrait;
    4.     return UIInterfaceOrientationMaskLandscape;
    5.     //默认是这个UIInterfaceOrientationMaskAllButUpsideDown
    6. }

  • 相关阅读:
    MySQL系统表information_schema.INNODB_TRX详解及查看当前运行事务
    SpringCloud Sleuth分布式请求链路跟踪
    工作卷？一行更比一行卷
    面试题：经典常见排序算法 插入 冒泡 选择 归并 快速排序
    沟通管理&风险管理&采购管理@&相关方管理
    Hive企业级调优
    Gartner 存储与数据保护技术 Hype Cycle 解读｜SmartX 趋势分享
    如何发现新的潜力项目？工具推荐
    DRDS的介绍
    ubuntu20.04 实测 机械式激光雷达与相机联合标定
  • 原文地址：https://blog.csdn.net/fittec/article/details/133967440