Google Maps Android API v2 example: detect long click on map and add marker

TO detect onMapLongClick, implement OnMapLongClickListener and call myMap.setOnMapLongClickListener(this) to register. Override onMapLongClick(LatLng point) to add marker by calling myMap.addMarker(new MarkerOptions().position(point).title("title")).

package com.example.androidmapsv2;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMap.OnMapLongClickListener;
import com.google.android.gms.maps.MapFragment;
//import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.GoogleMap.OnMapClickListener;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.FragmentManager;
import android.location.Location;
import android.os.Bundle;
//import android.support.v4.app.FragmentActivity;
//import android.support.v4.app.FragmentManager;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity 
 implements OnMapClickListener, OnMapLongClickListener{
 
 final int RQS_GooglePlayServices = 1;
 private GoogleMap myMap;
 
 Location myLocation;
 TextView tvLocInfo;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  
  tvLocInfo = (TextView)findViewById(R.id.locinfo);
  
  FragmentManager myFragmentManager = getFragmentManager();
  MapFragment myMapFragment 
   = (MapFragment)myFragmentManager.findFragmentById(R.id.map);
  myMap = myMapFragment.getMap();
  
  myMap.setMyLocationEnabled(true);
  
  myMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
  //myMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
  //myMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
  //myMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
  
  myMap.setOnMapClickListener(this);
  myMap.setOnMapLongClickListener(this);

 }
 
 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
  // Inflate the menu; this adds items to the action bar if it is present.
  getMenuInflater().inflate(R.menu.activity_main, menu);
  return true;
 }

 @Override
 public boolean onOptionsItemSelected(MenuItem item) {
  switch (item.getItemId()) {
     case R.id.menu_legalnotices:
      String LicenseInfo = GooglePlayServicesUtil.getOpenSourceSoftwareLicenseInfo(
        getApplicationContext());
      AlertDialog.Builder LicenseDialog = new AlertDialog.Builder(MainActivity.this);
      LicenseDialog.setTitle("Legal Notices");
      LicenseDialog.setMessage(LicenseInfo);
      LicenseDialog.show();
         return true;
     }
  return super.onOptionsItemSelected(item);
 }

 @Override
 protected void onResume() {
  // TODO Auto-generated method stub
  super.onResume();

  int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());
  
  if (resultCode == ConnectionResult.SUCCESS){
   Toast.makeText(getApplicationContext(), 
     "isGooglePlayServicesAvailable SUCCESS", 
     Toast.LENGTH_LONG).show();
  }else{
   GooglePlayServicesUtil.getErrorDialog(resultCode, this, RQS_GooglePlayServices);
  }
  
 }

 @Override
 public void onMapClick(LatLng point) {
  tvLocInfo.setText(point.toString());
  myMap.animateCamera(CameraUpdateFactory.newLatLng(point));
 }

 @Override
 public void onMapLongClick(LatLng point) {
  tvLocInfo.setText("New marker added@" + point.toString());
  myMap.addMarker(new MarkerOptions().position(point).title(point.toString()));
 }

}

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Next:
- Detect MarkerClick and add Polyline


The series:

A simple example using Google Maps Android API v2, step by step.