一次按下一个按钮

Question

I'm trying to press the first button just one time. This button usually return a random card but I want it just one time. Then the button should be inactive. How can I do that? That's my code:

public class GameActivity extends Activity {
    Boolean buttonPressed = false;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_game);

    final Button background = (Button) findViewById(R.id.A);
    Resources res = getResources();
    final TypedArray Deck = res.obtainTypedArray(R.array.Deck);
    final Random random = new Random(); 
    if (!buttonPressed){
        buttonPressed = true;
    background.setOnClickListener(new Button.OnClickListener() {

        public void onClick(View v) { 

            //Genrate a random index in the range
            int randomInt = random.nextInt(Deck.length()-1);
            // Generate the drawableID from the randomInt
            int drawableID = Deck.getResourceId(randomInt, -1);
            background.setBackgroundResource(drawableID);
        }
         });

Answer 1

If the player has an action to do next, the simpler way is to deactivate the button when is pressed first time and after in the next action activated again.

You can do this adding

background.setEnabled(false);

in your anonymous class listener and after add

background.setEnabled(true);

in player's next action.

Answer 2

you can disable your button with (place it inside your onClick)

background.setEnabled(false);

and you also might initialize your button to true in onCreate method