Iphone 如何在mapview上显示NSMutableArray结果

我正在尝试使用

googleplacesapi

获取位置，并将它们显示在

mapView

上。我有一个名为myList的

NSMutableArray

。myList的

NSLog

输出为

Project[3151:15803] mylist array (
    "<ObjectInfo: 0x81aa040>",
    "<ObjectInfo: 0x81aa140>",
    "<ObjectInfo: 0x81aa170>",
    "<ObjectInfo: 0x81aa1a0>",
    "<ObjectInfo: 0x81aa1d0>",
    "<ObjectInfo: 0x81a9f20>",
    "<ObjectInfo: 0x81a9f50>",
    "<ObjectInfo: 0x81a9f80>",
    "<ObjectInfo: 0x81a9fb0>",
    "<ObjectInfo: 0x81aa260>",
    "<ObjectInfo: 0x81aa290>",
    "<ObjectInfo: 0x81aa2c0>",
    "<ObjectInfo: 0x81aa2f0>",
    "<ObjectInfo: 0x81aa320>",
    "<ObjectInfo: 0x81aa350>",
    "<ObjectInfo: 0x81aa380>",
    "<ObjectInfo: 0x81aa3b0>",
    "<ObjectInfo: 0x81aa450>",
    "<ObjectInfo: 0x81aa480>",
    "<ObjectInfo: 0x81aa4b0>"

---

创建注释时，应该为其指定一个包含纬度和经度的CLLocationCoordinate2D。当然，您将从您必须解析的JSON对象中获得这一点。下面的一行绝对正确，这就是您所要做的，它将通过您的myList并将每个注释添加到地图视图中。确保注释包含经度和纬度（即坐标）

检查下面的链接，很棒的教程

---

在何处以及如何填充

myList

？来自JSON请求：NSObject*requestJSON=[ServerInfoResuest getServerInfoWithAddress:request]；NSMutableDictionary*allInfo=（NSMutableDictionary*）请求JSON；如果（[[allInfo objectForKey:@“status”]IseQualtString:@“OK”]）{self.myList=[ObjectParse parserManager:[allInfo objectForKey:@“results”]]；

- (CLLocationManager *)locationManager 
{
    if (locationManager != nil) 
    {
        return locationManager;
    }

    locationManager = [[CLLocationManager alloc] init];
    [locationManager setDesiredAccuracy:kCLLocationAccuracyNearestTenMeters];
    [locationManager setDelegate:self];

    return locationManager;

}

- (void)showAnnotation
{

    MKCoordinateRegion region;
    region.center = theCoordinate;
    MKCoordinateSpan span;
    span.latitudeDelta = 0.01;
    span.longitudeDelta = 0.01;
    region.span=span;
    [mapView setRegion:region animated:TRUE];

    DDAnnotation *annotation = [[[DDAnnotation alloc] initWithCoordinate:theCoordinate addressDictionary:nil] autorelease];

    NSLog(@"mylist array %@", myList);

    [self.mapView addAnnotations:myList];

}

- (void)viewDidLoad {
    [super viewDidLoad];

    locationManager = [[CLLocationManager alloc] init];
    locationManager.desiredAccuracy = kCLLocationAccuracyBest;
    locationManager.delegate = self;
    [locationManager startUpdatingLocation];


    UIActivityIndicatorView *activityIndicator = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 32.0f, 32.0f)];
    [activityIndicator setCenter:CGPointMake(160.0f, 208.0f)];
    [activityIndicator setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleWhiteLarge];
    activityIndicator.tag = INDICATOR_VIEW;
    [self.view addSubview:activityIndicator];
    [activityIndicator release];


    self.myTable = [[[UITableView alloc] initWithFrame:CGRectMake(0, 0, 320, 400) style:UITableViewStylePlain] autorelease];
    [self.myTable setDelegate:self];
    [self.myTable setDataSource:self];  
    [self.myTable setBackgroundColor:[UIColor clearColor]];
    [self.myTable setRowHeight:74];
    [self.myTable setSeparatorColor:[UIColor clearColor]];
    //[self.myTable setScrollEnabled:NO];

   // self.myTable.separatorStyle = UITableViewCellSeparatorStyleNone; // none style

    [self.view addSubview:self.myTable];


    if ([ProjUtil connectedToWeb]) {


        self.locationManager = [[[CLLocationManager alloc] init] autorelease];
        self.locationManager.delegate = self; // send loc updates to myself
        [self.locationManager startUpdatingLocation];


        //UIActivityIndicatorView *activityIndicator = (UIActivityIndicatorView *)[self.view viewWithTag:INDICATOR_VIEW];

        [activityIndicator startAnimating];
        [backBt setEnabled:NO];
        [myTable setUserInteractionEnabled:NO ];
    }   else {
        UIAlertView* alert = [[[UIAlertView alloc] initWithTitle:@"" message:@"Internet connection fails" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil] autorelease];
        [alert show];
        return;
    }

}

// Listen to change in the userLocation
-(void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context 
{       
    MKCoordinateRegion region;
    region.center = self.mapView.userLocation.coordinate;  

    MKCoordinateSpan span; 
    span.latitudeDelta  = 0.05; // Change these values to change the zoom
    span.longitudeDelta = 0.05; 
    region.span = span;

    [self.mapView setRegion:region animated:YES];
}


- (UITableViewCell *)tableView:(UITableView *)tableView1 cellForRowAtIndexPath:(NSIndexPath *)indexPath{ 

    UILabel* nameLb;
    UILabel* detailsLb; 

    UITableViewCell *cell = [tableView1 dequeueReusableCellWithIdentifier:@"log-cell"]; 

    if (cell == nil) {

        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault 
                                       reuseIdentifier:@"log-cell"] autorelease];

        UIImage* img = [ImgUtil image:[NSString stringWithFormat:@"butList3_%d.png", [[SelectCategory instance] select] + 1 ]];
        UIImageView* bgImage = [[[UIImageView alloc] initWithImage:img ]autorelease];
        [cell addSubview:bgImage ];
        [cell sendSubviewToBack:bgImage ];

        nameLb = [[[UILabel alloc] initWithFrame:CGRectMake(40, 5, 250, 40)] autorelease];
        [nameLb setNumberOfLines:4];
        [nameLb setBackgroundColor:[UIColor clearColor]];
        [nameLb setTextColor:[UIColor whiteColor]];
        [nameLb setTag:NAME_TEXT];
        [nameLb setFont:[UIFont fontWithName:@"Helvetica-Bold" size:15]];
        [nameLb setMinimumFontSize:10];

        [cell addSubview:nameLb];


        detailsLb = [[[UILabel alloc] initWithFrame:CGRectMake(40, 45, 250, 20)] autorelease];
        [detailsLb setBackgroundColor:[UIColor clearColor]];
        [detailsLb setTextColor:[UIColor whiteColor]];
        [detailsLb setTag:DETAILS_TEXT];
        [detailsLb setFont:[UIFont fontWithName:@"Helvetica" size:12]];
        [cell addSubview:detailsLb];


    }else {

        nameLb = (UILabel*)[cell viewWithTag:NAME_TEXT];
        detailsLb = (UILabel*)[cell viewWithTag:DETAILS_TEXT];

    }

    ObjectInfo* obj = [myList objectAtIndex:indexPath.row ] ;
    nameLb.text = [obj name];

    double distance = [ProjUtil getDistanceWithLat1:currentLocation.latitude long1:currentLocation.longitude lat2:obj.location.latitude long2:obj.location.longitude];
    detailsLb.text = [NSString stringWithFormat:@"%.2f miles", [ProjUtil kmToMi:distance]];

    [cell setSelectionStyle:UITableViewCellSelectionStyleNone];
    [cell setBackgroundColor:[UIColor clearColor]];

    ///[cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator];
    return cell;

} 

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{ 

    MoreInfoCtrl* _ctrl = [MoreInfoCtrl make];
    _ctrl.object = [myList objectAtIndex:indexPath.row];
    [self.navigationController pushViewController:_ctrl animated:YES];

} 

-(void) findCodeWithCoord:(CLLocationCoordinate2D) _coord{
    //[[SelectCategory instance] getCategoryText]

    NSString* request = [NSString stringWithFormat:LINK,_coord.latitude , _coord.longitude , [[SelectCategory instance] getCategoryText]];
    //NSLog(@"%@", request);
    request = [request stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
    //NSLog(@"%@", request);
    NSObject* requestJSON = [ServerInfoResuest getServerInfoWithAddress:request];
    NSMutableDictionary* allInfo = (NSMutableDictionary* ) requestJSON;

    if ([[allInfo objectForKey:@"status"] isEqualToString:@"OK"]) {
        self.myList = [ObjectParse parserManager:[allInfo objectForKey:@"results"]]; 
//        NSLog(@"allinfo dict is %@", allInfo);

    }

    [myTable reloadData];
    UIActivityIndicatorView *activityIndicator = (UIActivityIndicatorView *)[self.view viewWithTag:INDICATOR_VIEW];

    [activityIndicator stopAnimating];

    [backBt setEnabled:YES];
    [myTable setUserInteractionEnabled:YES ];


}
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{   
    //[self.delegate locationUpdate:newLocation];
    currentLocation = newLocation.coordinate;
    //  errorLabel.text = [newLocation description];
    [manager stopUpdatingLocation]; 
    [self findCodeWithCoord:currentLocation];

    [locationManager stopUpdatingLocation]; 
    theCoordinate.latitude = newLocation.coordinate.latitude;
    theCoordinate.longitude = newLocation.coordinate.longitude;
    [self showAnnotation];
}


- (MKAnnotationView *)mapView:(MKMapView *)theMapView viewForAnnotation:(id <MKAnnotation>)annotation{
    if ([annotation isKindOfClass:[MKUserLocation class]])
        return nil;

    AddressAnnotation* adr = (AddressAnnotation*) annotation;
    MKPinAnnotationView* pinView = (MKPinAnnotationView *)
    [mapView dequeueReusableAnnotationViewWithIdentifier:adr.placeTitle];
    if (!pinView)
    {
        MKPinAnnotationView* customPinView = [[[MKPinAnnotationView alloc]
                                               initWithAnnotation:annotation reuseIdentifier:adr.placeTitle] autorelease];
        //      customPinView.pinColor = MKPinAnnotationColorRed;
        customPinView.image = [UIImage imageNamed:[NSString stringWithFormat:@"wpin.png"]];

        AddressAnnotation* adr = (AddressAnnotation*) annotation;

        UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
        [rightButton addTarget:self action:@selector(clDetails) forControlEvents:UIControlEventTouchUpInside];
        [rightButton setTitle:annotation.title forState:UIControlStateNormal];
        customPinView.rightCalloutAccessoryView = rightButton;

        customPinView.draggable = YES;
        customPinView.animatesDrop = NO;
        customPinView.canShowCallout = YES;

  forControlEvents:UIControlEventTouchUpInside];
        //  customPinView.rightCalloutAccessoryView = rightButton;

        return customPinView;
    }
    return nil; 
}

- (void)locationManager:(CLLocationManager *)manager
       didFailWithError:(NSError *)error
{

    UIActivityIndicatorView *activityIndicator = (UIActivityIndicatorView *)[self.view viewWithTag:INDICATOR_VIEW];
    [activityIndicator stopAnimating];
    [backBt setEnabled:YES];
    [myTable setUserInteractionEnabled:YES ];
    [locationManager stopUpdatingLocation];


}

@end

[self.mapView addAnnotations:myList];