Change the visibility of a button when location==null

Question

In method onCreate i have button:

    connection.setOnClickListener(new View.OnClickListener() {



        public void onClick(View view) {



            {

                   GoogleApiClient.connect();

            }

and at the very bottom android studio generated:

@Override



public void onConnected(Bundle bundle) 

    {



    if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

        return;



    }



    Location location = LocationServices.FusedLocationApi.getLastLocation(GoogleApiClient);



    if (location == null) 

    {



                LocationServices.FusedLocationApi.requestLocationUpdates(GoogleApiClient, LocationRequest, (LocationListener) this);



    }

And now i describe my problem:
Trying to hide my connection button when location == null, and 'else' unhide.

i found on stack this method:

button.setEnabled(false/true);

but i don't now where i should place this method

What to do to make it work?

Answer 1

Hiding is done using View.setVisibility(int) - options are View.GONE (completely hides the View, other Views fill its space); View.INVISIBLE (hides the View but it still occupies the layout space); View.VISIBLE (shows the View, again occupying the space).

So as people commented before:

if (location == null) {
    myButton.setVisibility(View.GONE);
} else {
    myButton.setVisibility(View.VISIBLE);
}

Change the visibility of a button when location==null

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