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Unable To Get Zoom Buttons To Show On MapView

- 1 answer

I have been trying to get this seemingly simple problem fixed for about half a day now. I have a working MapView and I just want to show the default zoom keys and have them there all the time. They do not appear at all - it's not that they appear then go away.

Code:

public void onCreate( Bundle savedInstanceState ) 
{
    super.onCreate( savedInstanceState );

    setContentView( R.layout.main );

    _altDisplay = (TextView) findViewById( R.id.altitudeDisplay );
    _speedDisplay = (TextView) findViewById( R.id.speedDisplay );
    _accuracyDisplay = (TextView) findViewById( R.id.accuracyDisplay );

    _mapView = (MapView) findViewById( R.id.mapView );
    _mapView.setBuiltInZoomControls(true);

    _mapController = _mapView.getController();
    _mapController.setZoom(22);

    _locationUpdates = new LocationUpdateHandler( (LocationManager) getSystemService( Context.LOCATION_SERVICE) );
    _locationUpdates.addObserver( this );
}

public void updateLocation( GeoPoint point, double altitude, float speed, float accuracy )
{
    _mapController.setCenter(point);

    _altDisplay.setText( "Altitude: " + Double.toString(altitude) );
    _speedDisplay.setText( "Speed: " + Float.toString(speed) );
    _accuracyDisplay.setText( "Accuracy: " + Float.toString(accuracy) );
}

I have tried commenting out the setZoom and tried moving the setBuiltInZoom controls to the updateLocation method. I've found a lot of posts in relation to this problem but none that solve it.

Thanks for your help.

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Answer

The zoom controls will only appear when the user taps on the appropriate area of the screen. I am not aware of a way to force them to appear, let alone stay permanently on the screen.

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source: stackoverflow.com
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