ios谷歌地图绘制多个标记问题（信息窗口和标记重复）

问题描述

首先我创建一个包含用户位置的地图

   - （void）initGogleMapView {
 
 GMSCameraPosition * camera = [GMSCameraPosition cameraWithLatitude：currentLocation.coordinate.latitude 
 longitude：currentLocation.coordinate.longitude 
 zoom：1]; 
 
 mapView = [GMSMapView mapWithFrame：CGRectMake（0，64，self.view.frame.size.width，self.view.frame.size.height-64）camera：camera]; 
 [self.view addSubview：mapView]; 
 GMSMarker * marker = [[GMSMarker alloc] init]; 
 marker.position = camera.target; 
 
 marker.appearAnimation = kGMSMarkerAnimationPop; 
 marker.map = mapView; 
 marker.title = @当前位置; 
 
 
} 
  

然后我有一组纬度和经度和情节循环

pre $ for（int i = 0; i {
GMSMarker * tempmarker = [[GMSMarker alloc] init];
tempmarker.position = CLLocationCoordinate2DMake（[[[latLongArr objectAtIndex：i] valueForKey：@Latitude] floatValue]，[[[latLongArr objectAtIndex：i] valueForKey：@Longitude] floatValue]）;
tempmarker.title = [[latLongArr objectAtIndex：i] valueForKey：@Name];
tempmarker.appearAnimation = kGMSMarkerAnimationPop;

tempmarker.map = mapView;



}


标记正在重复同样的title.Can任何人都可以帮助我，我在哪里做错了？

首先检查你的经度和纬度的数组，它可能是重复的。否则，请按照以下步骤操作：

首先，添加 GoogleMaps.bundle 和 GoogleMaps。 framework 添加到您的项目中。
然后当你想实现谷歌地图时， #import< GoogleMaps / GoogleMaps.h> ，然后设置委托 @interface YourViewController ：UIViewController< GMSMapViewDelegate> 。

在 .h p>

  @property（nonatomic，retain）GMSMapView * gMapView; 
  

在 viewDidLoad（）

  GMSCameraPosition * camera = [GMSCameraPosition cameraWithLatitude：appDelegate.currentLoc.coordinate.latitude longitude：appDelegate.currentLoc.coordinate.longitude zoom：6]; 
 self.gMapView = [GMSMapView mapWithFrame：CGRectZero camera：camera]; 
 self.gMapView.delegate = self; 
 self.gMapView.myLocationEnabled = YES; 
 self.gMapView.mapType = kGMSTypeSatellite; 
 self.view = self.gMapView; 
 
 GMSMarker * curLocation = [[GMSMarker alloc] init]; 
 curLocation.title = @当前位置; 
 curLocation.appearAnimation = kGMSMarkerAnimationPop; 
 curLocation.position = CLLocationCoordinate2DMake（appDelegate.currentLoc.coordinate.latitude，appDelegate.currentLoc.coordinate.longitude）; 
 curLocation.map = self.gMapView; 
  

您在地图上添加了多个标记。

  for（int i = 0; i< [latLongArr count]; i ++）
 {
 GMSMarker * marker = [[GMSMarker alloc] init]; 
 marker.position = CLLocationCoordinate2DMake（[[（NSDictionary *）[latLongArr objectAtIndex：i] valueForKey：@Latitude] doubleValue]，[[（NSDictionary *）[latLongArr objectAtIndex：i] valueForKey：@Longitude ] doubleValue]）; 
 marker.appearAnimation = kGMSMarkerAnimationPop; 
 marker.title = @标题; 
 marker.snippet = @Sub title; 
 marker.map = self.gMapView; 
} 
  

First i create a Map with user location

-(void)initGogleMapView{

GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:currentLocation.coordinate.latitude
                                                        longitude:currentLocation.coordinate.longitude
                                                             zoom:1];

mapView = [GMSMapView mapWithFrame:CGRectMake(0, 64, self.view.frame.size.width, self.view.frame.size.height-64) camera:camera];
[self.view addSubview:mapView];
GMSMarker *marker = [[GMSMarker alloc] init];
marker.position = camera.target;

marker.appearAnimation = kGMSMarkerAnimationPop;
marker.map = mapView;
marker.title=@"Current Location";


}

Then i have an array of latitude and longitude and plot in for loop

   for(int i=0;i<[latLongArr count];i++)
         {
             GMSMarker *tempmarker = [[GMSMarker alloc] init];
             tempmarker.position = CLLocationCoordinate2DMake([[[latLongArr objectAtIndex:i] valueForKey:@"Latitude"] floatValue],[[[latLongArr objectAtIndex:i] valueForKey:@"Longitude"] floatValue]);
             tempmarker.title=[[latLongArr objectAtIndex:i] valueForKey:@"Name"];
             tempmarker.appearAnimation = kGMSMarkerAnimationPop;

             tempmarker.map = mapView;



         }

Markers are getting repeated with same title.Can anyone help me where i am doing wrong?

解决方案

First of all check your Latitude and Longitude in array, it might be duplicates. Otherwise, follow steps :

At very first, add GoogleMaps.bundle and GoogleMaps.framework to your project.And then when you want to implement google map, #import <GoogleMaps/GoogleMaps.h>, then set delegate @interface YourViewController : UIViewController <GMSMapViewDelegate>.

Declare property in your .h

@property (nonatomic, retain) GMSMapView *gMapView;

In viewDidLoad()

GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:appDelegate.currentLoc.coordinate.latitude longitude:appDelegate.currentLoc.coordinate.longitude zoom:6];
self.gMapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
self.gMapView.delegate = self;
self.gMapView.myLocationEnabled = YES;
self.gMapView.mapType = kGMSTypeSatellite;
self.view = self.gMapView;

GMSMarker *curLocation = [[GMSMarker alloc] init];
curLocation.title = @"Current Location";
curLocation.appearAnimation = kGMSMarkerAnimationPop;
curLocation.position = CLLocationCoordinate2DMake(appDelegate.currentLoc.coordinate.latitude, appDelegate.currentLoc.coordinate.longitude);
curLocation.map = self.gMapView;

Where you have added multiple markers to map.

for(int i=0;i<[latLongArr count];i++)
{
   GMSMarker *marker = [[GMSMarker alloc] init];
   marker.position = CLLocationCoordinate2DMake([[(NSDictionary *)[latLongArr objectAtIndex:i] valueForKey:@"Latitude"] doubleValue], [[(NSDictionary *)[latLongArr objectAtIndex:i] valueForKey:@"Longitude"] doubleValue]);
   marker.appearAnimation = kGMSMarkerAnimationPop;
   marker.title = @"Title";
   marker.snippet = @"Sub title";
   marker.map = self.gMapView;
}

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