从iOS7开始Apple提供了[UIApplicationUserDidTakeScreenshotNotification]通知来告知用户已经进行截屏操作。可以监听该通知并进行相应的提示。
- (void)viewDidLoad {
[super viewDidLoad];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(userDidTakeScreenshot) name:UIApplicationUserDidTakeScreenshotNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationUserDidTakeScreenshotNotification object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification * _Nonnull note) {
NSLog(@"检测到截屏方法2");
}];
}
-(void)userDidTakeScreenshot{
NSLog(@"检测到截屏方法1");
}
