Google Map in not Visible in android marshmallow?

Issue

Google Map not showing in marshmallow device when build an app at API level greater than 23 but it showing correctly below marshmallow version.I have used MapView.

Actally i am getting Current lat lang (0,0) in Marshmallow that's why i am facing issue in marshmallow.For getting current lat lang i am using this line:-

private void getCurrentLatLong() {

    try {
        gps = new GPSTracker(getActivity());

        if (gps.canGetLocation()) {

            double latitude = gps.getLatitude();
            double longitude = gps.getLongitude();

            System.out.println("latitude print==" + latitude);


            lat = String.valueOf(latitude);
            lng = String.valueOf(longitude);
            System.out.println("lat long check====" + "lati :" + lat + " -- lng :" + lng);

            if (lat.equalsIgnoreCase("0.0") || lng.equalsIgnoreCase("0.0")) {
                getCurrentLatLong();
            } else {
                mMapView.onResume();
                setMap();
            }

        } else {
            // can't get location
            // GPS or Network is not enabled
            // Ask user to enable GPS/network in settings
            gps.showSettingsAlert();
        }
    } catch (Exception ex) {
        ex.printStackTrace();
    }

}  

Solution

first this permission must have

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

then, runtime permission is required when you want to use location map

if (ContextCompat.checkSelfPermission(Maps_Activity.this,Manifest.permission.ACCESS_FINE_LOCATION)
          != PackageManager.PERMISSION_GRANTED) {

    // Should we show an explanation?
    if (ActivityCompat.shouldShowRequestPermissionRationale(Maps_Activity.this, Manifest.permission.ACCESS_FINE_LOCATION)) {

    } else {

        // No explanation needed, we can request the permission.

        ActivityCompat.requestPermissions(Maps_Activity.this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION},PERMISSION_REQUEST_CODE);
    }
}
else{
     //load your map here
}

And the overrride onRequestPermissionsResult.

@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
    switch (requestCode) {
        case PERMISSION_REQUEST_CODE: {
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                // permission was granted, yay!
                // load your map here also

            } else {

                // permission denied, boo! Disable the
                // functionality that depends on this permission.
            }
            return;
        }

        // other 'case' lines to check for other
        // permissions this app might request
    }
}

Answered By - ZeroOne