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我在不同的选项卡上有两张地图...我正在尝试在地图上添加商家的位置并使用标记...这是我的代码我需要做什么才能完成这项工作？当我将我的标记代码放入此代码时，它甚至不会再拉起地图......请没有人解释我需要做什么才能解决这个问题谢谢！

   import com.google.android.gms.maps.GoogleMap;
   import com.google.android.gms.maps.SupportMapFragment;
   import com.google.android.gms.maps.model.BitmapDescriptorFactory;
   import com.google.android.gms.maps.model.LatLng;
   import com.google.android.gms.maps.model.Marker;
   import com.google.android.gms.maps.model.MarkerOptions;

   import android.os.Bundle;
   import android.support.v4.app.Fragment;
   import android.support.v4.app.FragmentActivity;
   import android.support.v4.app.FragmentManager;
   import android.support.v4.app.FragmentTransaction;

   public class Contacts2 extends FragmentActivity {
 private static final String Contacts2 = "Contacts2";

 private GoogleMap contact2Map;

    @Override
    protected void onCreate(Bundle arg0) {
    super.onCreate(arg0);
    setContentView(R.layout.contacts2);

    addtest();

    }

    private void addtest() {

        LatLng position = new LatLng(26.0460563,-80.2517702);
        contact2Map.addMarker(new MarkerOptions()
        .title("text")
        .snippet("text")
        .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE))
        .position(position));

    }

    @Override
    protected void onResume() {
        super.onResume();
        SupportMapFragment mMapFragment = SupportMapFragment.newInstance();

         FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
         fragmentTransaction.add(R.id.contacts2map, mMapFragment,Contacts2);
         fragmentTransaction.commitAllowingStateLoss();

    }


    @Override
    protected void onPause() {
        super.onPause();

        FragmentManager fmanager = getSupportFragmentManager();
        Fragment fragment = fmanager.findFragmentByTag(Contacts2);

       fmanager.beginTransaction().remove(fragment).commitAllowingStateLoss();


    }

}

4

1 回答 1

0

尝试这个：

 @Override
    protected void onCreate(Bundle arg0) {
    super.onCreate(arg0);
    setContentView(R.layout.contacts2);

    //Add this line
    contact2Map= ((SupportMapFragment) getFragmentManager().findFragmentById(R.id.contacts2map))
        .getMap();

    addtest();

    }
于 2013-08-08T04:23:19.833 回答