Question

I want to disable button B when making a treatement in button A.

public class GoJump extends Activity{
    Button answerA, answerB;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.jump);
answerA = (Button) findViewById(R.id.button_A);
answerB = (Button) findViewById(R.id.button_B);

    answerA.setOnClickListener(new OnClickListener() 
    {
                public void onClick(View v) 
                   {
                     // Do something
                     // Disable button B
                   }
    });

The problem is button B is not visible inside button A treatement. I have to declare it another time to disable it.
Is there any other method to do? Make a variable visible in all class.
Thank you.

Answer 1

Initialize your variable before onCreate().

// Before onCreate
private Button b, b2;

@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    b = (Button) findViewById(R.id.button);
    b2 = (Button) findViewById(R.id.button2);

    b.setOnClickListener(new OnClickListener() 
    {
            public void onClick(View v) 
            {
                b2.setEnabled(false);
            }
    });
{