长按地图获取经纬度 添加图钉

长按地图获取经纬度

引用

    UILongPressGestureRecognizer *lpress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)];
    lpress.minimumPressDuration = 0.3;//按0.5秒响应longPress方法
    lpress.allowableMovement = 10.0;
    //给MKMapView加上长按事件
    [mapView addGestureRecognizer:lpress];//mapView是MKMapView的实例
    [lpress release];

- (void)longPress:(UIGestureRecognizer*)gestureRecognizer {
    if (gestureRecognizer.state == UIGestureRecognizerStateBegan){  //这个状态判断很重要
        //坐标转换
        CGPoint touchPoint = [gestureRecognizer locationInView:self.mapView];
        CLLocationCoordinate2D touchMapCoordinate =
        [self.mapView convertPoint:touchPoint toCoordinateFromView:self.mapView];
        //这里的touchMapCoordinate.latitude和touchMapCoordinate.longitude就是你要的经纬度，
        NSLog(@"%f",touchMapCoordinate.latitude);
        NSLog(@"%f",touchMapCoordinate.longitude);
    }
}

长按添加图钉

- (void)longPress:(UIGestureRecognizer*)gestureRecognizer {
    if (gestureRecognizer.state == UIGestureRecognizerStateBegan){  //这个状态判断很重要
        //坐标转换
        CGPoint touchPoint = [gestureRecognizer locationInView:self.mapView];
        CLLocationCoordinate2D touchMapCoordinate =
        [self.mapView convertPoint:touchPoint toCoordinateFromView:self.mapView];
        //这里的touchMapCoordinate.latitude和touchMapCoordinate.longitude就是你要的经纬度，
        NSLog(@"%f",touchMapCoordinate.latitude);
        NSLog(@"%f",touchMapCoordinate.longitude);
        //30.264998 120.122538   30.285012 120.117989
        LocationObject *aLocationObject = [[LocationObject alloc]initWithTitle:@"hello" latitue:touchMapCoordinate.latitude longitude:touchMapCoordinate.longitude];
        aLocationObject._subTitleString = @"world";
        NSMutableArray *_mapAnnotations = [[NSMutableArray alloc]initWithCapacity:1];
        [_mapAnnotations addObject:aLocationObject];
        [self.mapView addAnnotations:_mapAnnotations ];
        [_mapAnnotations release];
        [aLocationObject release];

    }
}