Question

I want to display google map in Android ,i have map API even map is not showing and also not throwing any error.
I have use following
Java code

public class GoogleMapActivity extends MapActivity {
    private Location myLocation;
    protected MapView myMapView = null;
    protected LocationManager myLocationManager = null;
    protected MapController mapController;
    List<Overlay> mapOverlays;

    protected boolean isRouteDisplayed() {
        return false;
    }

    protected void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        this.myMapView = new MapView(this, "0jzIB6m5R1kLa_rGte-DS9PhF3KlSgqYHUZognA");    
        this.setContentView(myMapView);
        myMapView.setBuiltInZoomControls(true);
        myMapView.setSatellite(true);
        mapController = myMapView.getController();
        mapOverlays = myMapView.getOverlays();
        this.myLocation = new Location("gps");
        this.myLocation.setLongitude(77.52436144125092);
        this.myLocation.setLatitude(13.05096452223662);
        updateView();
    }

    private void updateView() {
        Double lat = myLocation.getLatitude();
        Double lng = myLocation.getLongitude();
        GeoPoint point = new GeoPoint(lat.intValue(), lng.intValue());
        mapController.setCenter(point);
    }
}

Manifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.googlemap"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="8" />

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_GPS" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".GoogleMapActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <uses-library android:name="com.google.android.maps" />
    </application>

</manifest>

Finally i get output blank. please have a look at below screen

on please suggest me where i’m wrong

Answer 1

I think you have not added myMapView in current layout ………..

you created in java code

this.myMapView = new MapView(this,
                "0jzIB6m5R1kLa_rGte-DS9PhF3KlSgqYHUZognA");

but looks not added in any layout.. as per link

1. If you dynamically create the MapView via its constructor, you can
   supply the API key that way from Java code, but then you will need to
   dynamically add it to your layout.
2. You cannot both have the widget in your layout and set the API key
   in Java.

Solutions :

• option 1 – Create a Linear layout in for XML and add the myMapView
  in that.
• option 2 -Create Map view in XML it self and get that by
  findViewById.