enter code herepublic class DisplayActivity extends Activity {

ListView listView;
private String tag_name;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_display);

    listView = (ListView) findViewById(R.id.list);

    Intent intent = getIntent();
    if(intent!= null)
    {
        //int imageId = intent.getIntExtra("DashboardImage",R.drawable.apartments);
        tag_name = intent.getStringExtra("DashItemName");
    }

    List<NameAddress> nameAddressList = null;
    try {
        XMLPullParserHandler parser = new XMLPullParserHandler(tag_name);
        nameAddressList = parser.parse(getAssets().open("data.xml"));
        ArrayAdapter<NameAddress> adapter =
            new ArrayAdapter<NameAddress>(this,R.layout.list_item, nameAddressList);
        listView.setAdapter(adapter);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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

Intent LaunchIntent = getPackageManager().getLaunchIntentForPackage("com.package.address");
startActivity(LaunchIntent);

String uri = "geo:"+ latitude + "," + longitude;
startActivity(new Intent(android.content.Intent.ACTION_VIEW, Uri.parse(uri)));

final Intent intent = new Intent(Intent.ACTION_VIEW,
Uri.parse("http:/a/maps.google.com/maps?"
+ "saddr="+ current_lat+","+current_longi + "&daddr="+dest_address ));

intent.setClassName("com.google.android.apps.maps","com.google.android.maps.MapsActivity");

startActivity(intent);

Uri.parse("http://maps.google.com/maps?"
+ "saddr="+curr_address+ "&daddr="+dest_address ));

Uri.parse("http://maps.google.com/maps?"
+ "saddr="+ current_lat+","+current_longi + "&daddr="+ destt_lat+","+dest_longi  ));

Geocoder coder = new Geocoder(this);
List<Address> address;

try {
    address = coder.getFromLocationName(strAddress,5);
    if (address == null)
    {
        return null;
    }
    Address location = address.get(0);
    location.getLatitude();
    location.getLongitude();
   }

Intent searchAddress = new  Intent(Intent.ACTION_VIEW,Uri.parse("geo:0,0?q="+address));
startActivity(searchAddress);