iOS实用技巧 - 简单的监视全部触控事件
jopen
10年前
在需要监视全局事件的场合，例如需要在用户无操作一定时间后退回主界面，可以用下面的方法：
创建一个UITapGestureRecognizer手势识别器，设置cancelsTouchesInView属性NO，将识别器绑定在应用的UIWindow上即可。
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { UITapGestureRecognizer *tapGe = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(handleGesture:)]; tapGe.cancelsTouchesInView = NO; [self.window addGestureRecognizer:tapGe]; return YES; } - (void)handleGesture:(UIGestureRecognizer *)gestureRecognizer { NSLog(@"Touched"); }