当谷歌地图标记被点击时，显示图像和文字android

Question

我已经做谷歌地图v2演示。我有许多纬度和经度可以在地图上作为标记显示，我已经成功完成了这项工作。

但是，现在我想要在点击标记时向他们显示图像，这也差不多完成了，但是我的问题是所有标记都是单张图像。

代码

package com.amar.travelonwards; 

import java.io.IOException; 
import java.net.URL; 

import android.annotation.SuppressLint; 
import android.app.Activity; 
import android.app.Dialog; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.graphics.Color; 
import android.graphics.drawable.ColorDrawable; 
import android.os.Bundle; 
import android.os.StrictMode; 
import android.text.Html; 
import android.view.View; 
import android.view.Window; 
import android.widget.ImageView; 
import android.widget.TextView; 
import android.widget.Toast; 

import com.amar.travelonwards.utility.ImageLoader; 
import com.google.android.gms.maps.CameraUpdateFactory; 
import com.google.android.gms.maps.GoogleMap; 
import com.google.android.gms.maps.GoogleMap.InfoWindowAdapter; 
import com.google.android.gms.maps.GoogleMap.OnMarkerClickListener; 
import com.google.android.gms.maps.MapFragment; 
import com.google.android.gms.maps.model.CameraPosition; 
import com.google.android.gms.maps.model.LatLng; 
import com.google.android.gms.maps.model.Marker; 
import com.google.android.gms.maps.model.MarkerOptions; 

public class Multi_Map_Marker extends Activity { 

    // Google Map 
    private GoogleMap googleMap; 
    int[] img = { R.drawable.ic_launcher, R.drawable.aro, R.drawable.back }; 
    CameraPosition cameraPosition; 
    ImageLoader imageLoader; 
    int i; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     requestWindowFeature(Window.FEATURE_NO_TITLE); 
     setContentView(R.layout.multi_map_marker); 

     try { 
      // Loading map 

      imageLoader = new ImageLoader(Multi_Map_Marker.this); 
      initilizeMap(); 

     } catch (Exception e) { 
      e.printStackTrace(); 

      Toast.makeText(getApplicationContext(), 
        "Sorry! unable to create maps", Toast.LENGTH_SHORT).show(); 
     } 

    } 

    /** 
    * function to load map. If map is not created it will create it for you 
    * 
    * @throws IOException 
    * */ 
    @SuppressLint("NewApi") 
    private void initilizeMap() throws IOException { 
     if (googleMap == null) { 
      googleMap = ((MapFragment) getFragmentManager().findFragmentById(
        R.id.map_multi)).getMap(); 

      StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder() 
        .permitAll().build(); 
      StrictMode.setThreadPolicy(policy); 

      // create marker 
      for (int i = 0; i < HotelListActivity.mNewsFeeder.latitude_list 
        .size(); i++) { 

       String latitude = HotelListActivity.mNewsFeeder.latitude_list 
         .get(i); 
       String longitude = HotelListActivity.mNewsFeeder.longitude_list 
         .get(i); 
       String name = HotelListActivity.mNewsFeeder.hotel_name_list 
         .get(i); 
       String hotel_images = "http://images.travelnow.com" 
         + HotelListActivity.mNewsFeeder.hotel_image_list.get(i); 
       System.out.println("MYIMAGES " + hotel_images); 
       URL url = new URL(hotel_images); 
       Bitmap image = BitmapFactory.decodeStream(url.openConnection() 
         .getInputStream()); 
       MarkerOptions marker = new MarkerOptions() 
         .position(
           new LatLng(Double.valueOf(latitude), Double 
             .valueOf(longitude))).title(name) 
         .snippet("Bed " + Integer.toString(i)) 
       /* .icon(BitmapDescriptorFactory.fromBitmap(image)) */; 

       try { 
        googleMap.addMarker(marker); 
        cameraPosition = new CameraPosition.Builder() 
          .target(new LatLng(Double.valueOf(latitude), Double 
            .valueOf(longitude))).zoom(12).build(); 

        googleMap.animateCamera(CameraUpdateFactory 
          .newCameraPosition(cameraPosition)); 
       } catch (Exception e) { 
        // TODO: handle exception 

        Toast.makeText(getApplicationContext(), 
          "Sorry! unable to create maps", Toast.LENGTH_SHORT) 
          .show(); 
       } 

      } 

      try { 



       googleMap.setInfoWindowAdapter(new InfoWindowAdapter() { 

        @Override 
        public View getInfoWindow(Marker arg0) { 

         return null; 
        } 

        @Override 
        public View getInfoContents(Marker marker) { 
         View myContentsView = getLayoutInflater().inflate(
           R.layout.custom_info_contents, null); 
         TextView tvTitle = ((TextView) myContentsView 
           .findViewById(R.id.title)); 
         ImageView image_view = ((ImageView) myContentsView 
           .findViewById(R.id.image_view)); 
         tvTitle.setText(marker.getTitle()); 

         for (i = 0; i < HotelListActivity.mNewsFeeder.latitude_list 
           .size(); i++) { 


          try 
          { 
           i = Integer.parseInt(marker.getSnippet()); 
          } 
          catch (java.lang.NumberFormatException e) 
          { 
           i = 0; 
          } 
          String hotel_images = HotelListActivity.mNewsFeeder.hotel_image_list 
            .get(i); 
          System.out.println("MYIMAGES " + hotel_images); 
          imageLoader.DisplayImage(hotel_images, image_view); 


         } 
         TextView tvSnippet = ((TextView) myContentsView 
           .findViewById(R.id.snippet)); 

         return myContentsView; 
        } 
       }); 

      } catch (Exception e) { 
       // TODO: handle exception 
      } 

      // adding marker 

      // check if map is created successfully or not 
      if (googleMap == null) { 
       Toast.makeText(getApplicationContext(), 
         "Sorry! unable to create maps", Toast.LENGTH_SHORT) 
         .show(); 
      } 
     } 
    } 

    @Override 
    protected void onResume() { 
     super.onResume(); 
     try { 
      initilizeMap(); 
     } catch (IOException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 
    } 

} 

Answer 1

另一种方式的。将标记添加到地图时，请抓取分配给它的标识。

marker = mMap.add(markerOptions); 

现在保存标记ID

x.markerId = marker.getId(); 

，因为它是最后所以要具有的MarkerOptions和ID类不能扩展的MarkerOptions。

Class X { 
MarkerOptions markerOptions; 
string markerId; 
string pathToImage; 
int imageId; 
string myCustomMarkerProperty; 
} 

保存X到一个集合

blah... 

当标志被点击使用它的id集合中查找。

marker.getId() 

Answer 2

方法getInfoContents(Marker marker)会给你点击标记为参数。

而不是循环遍历您的mNewsFeeder列表中的所有项目并加载图像视图中的每个图像，您应该在列表中找到与给定标记相对应的项目（索引）并加载其图像。

既然您在创建标记时没有设置snippet的值，可能最简单的方法是在创建标记时设置索引，然后使用该索引获取正确的图像。

MarkerOptions marker = new MarkerOptions().position(
     new LatLng(Double.valueOf(latitude), Double.valueOf(longitude))) 
     .title(name) 
     .snippet(Integer.toString(i)); 

相反循环

for (int i = 0; i < HotelListActivity.mNewsFeeder.latitude_list.size(); i++) { 

使用

try 
{ 
    i = Integer.parseInt(marker.getsnippet()); 
} 
catch (java.lang.NumberFormatException e) 
{ 
    i = 0; 
} 
final String hotel_images = HotelListActivity.mNewsFeeder.hotel_image_list.get(i); 
imageLoader.DisplayImage(hotel_images, image_view);