Question

我有两点看法的塔巴。一个是地图,另一个是搜索场的表。在表格中,我通过JSON获得一些地方(坐标)。我需要知道如何检索这些信息,以便将说明列入地图。

注

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
MapViewController *mvc = [[MapViewController alloc] initWithNibName:@"MapViewController" bundle:nil];

CLLocationCoordinate2D location;
titleLocation       = [ streets objectAtIndex:indexPath.row ];
location.latitude   = [ [ latitude objectAtIndex:indexPath.row ] doubleValue];
location.longitude  = [ [ longitude objectAtIndex:indexPath.row ] doubleValue];

[self.tabBarController setSelectedIndex:0];
[mvc release];

我知道,这不会奏效,但我不知道如何把这价值观通过给马普洛默勒或我的地图文典,然后把这些价值观带入地图集。我认为,最后一点更好了。

Could you help me? Thanks a lot

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    MapViewController *mvc = [[MapViewController alloc] initWithNibName:@"MapViewController" bundle:nil];

    CLLocationCoordinate2D location;
    titleLocation       = [ streets objectAtIndex:indexPath.row ];
    location.latitude   = [ [ latitude objectAtIndex:indexPath.row ] doubleValue];
    location.longitude  = [ [ longitude objectAtIndex:indexPath.row ] doubleValue];

    MapViewAnnotation *mva = [[MapViewAnnotation alloc] initWithTitle:titleLocation andSubtitle:@"Clique para fazer sua contribuição" andCoordinate:location];

    NSLog(@"Lat/Log: %f/%f", location.latitude, location.longitude);

    [mvc setAnnotation:mva];
    [mvc.mapView addAnnotation:mva]; 

    [self.tabBarController setSelectedIndex:0];
    [mvc release];  
}

我也这样说,但它依然没有工作。说明没有出现。

Answer 1

假设地图总是以表格索引0显示,你可以查阅<代码>。页: 1 阵容:

MapViewController *mvc = (MapViewController *)
                     [self.tabBarController.viewControllers objectAtIndex:0];

CLLocationCoordinate2D location;
titleLocation       = [ streets objectAtIndex:indexPath.row ];
location.latitude   = [ [ latitude objectAtIndex:indexPath.row ] doubleValue];
location.longitude  = [ [ longitude objectAtIndex:indexPath.row ] doubleValue];

//Here, call some method in MapViewController that takes a location and title
//and creates an annotation from it and adds it to the map view...
[mvc makeAnnotationAtLocation:location title:titleLocation];

[self.tabBarController setSelectedIndex:0];

//(do not release mvc)

www.un.org/Depts/DGACM/index_french.htm 这种方法可以认为:

- (void)makeAnnotationAtLocation:(CLLocationCoordinate2D)coord title:(NSString *)locTitle
{
    YourAnnotationClass *yac = [[YourAnnotationClass alloc] init];
    yac.coordinate = coord;
    yac.title = locTitle;
    [mapView addAnnotation:yac];
    [yac release];

    //center map on coord if you want to...
}

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