iOS点击按钮隐藏状态栏

Posted 2022-11-28 JoySeeDog

@interface SecondViewController ()
@property (nonatomic, assign,getter=isHideStatus) BOOL hideStatus;
@end

@implementation SecondViewController

- (void)viewDidLoad 
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor whiteColor];

    UIButton *button  = [[UIButton  alloc] initWithFrame:CGRectMake(0, 0, 300, 200)];
    button.center = self.view.center;
    button.backgroundColor = [UIColor blueColor];
    [button setTitle:@"隐藏导航栏" forState:UIControlStateNormal];
    [button addTarget:self action:@selector(hideFrame) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:button];

    self.hideStatus = [UIApplication sharedApplication].statusBarHidden;

    // Do any additional setup after loading the view, typically from a nib.



- (void)hideFrame 

    [self setNeedsStatusBarAppearanceUpdate];//调用该方法后系统会调用prefersStatusBarHidden方法
    self.hideStatus = !self.hideStatus;


- (BOOL)prefersStatusBarHidden

    return self.hideStatus;