iOS 激活APP时通知APP开始获取用户位置

    //添加激活APP定位通知    [self addNotiLocation];

- (void)addNotiLocation {    UIApplication *application = [UIApplication sharedApplication];    [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(applicationDidBecomeActive:) name:EnterForeground object:application];        [[NSNotificationCenter defaultCenter]postNotificationName:EnterForeground object:nil];}- (void)applicationDidBecomeActive:(NSNotification *)notification {    [self requestCurrentLocationOnce];}