Question

I have a TextView that displays a number (in this case, the number is 10).

Now, i have a button so the user has to press that button 10 times in order for the number to hit 0, resulting in moving on to the next level. However,

I can keep hitting that button and it starts its way back into the negatives (-1, -2, etc.).

I tried to think of how I would prevent this but I’m at loss.. any ideas?

———————————–EDIT—————————————–

Okay, so here is my update (I got it to stop at 0):

public void onClick(View v) {
        // TODO Auto-generated method stub

        if (scr >= 1) {

            scr = scr - 1;
           TextView Score = (TextView) findViewById(R.id.Score);
           Score.setText(String.valueOf(scr));
        }

        if (scr == 10) 
        {
               aCounter.start();
        }

        if (scr == 1) 
        {
            aCounter.cancel();
            new AlertDialog.Builder(Tap_Game_Activity.this)
             .setTitle("Congratulations!").setMessage("Go to Level 2?")
             .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
              public void onClick(DialogInterface AlertDialog, int PositiveButton) {
                  setContentView(R.layout.activity_level02_activity);
              }
               })
             .setNegativeButton("No", new DialogInterface.OnClickListener() {
                  public void onClick(DialogInterface AlertDialog, int NegativeButton) {
                   }
                   }).show();
        }

    }});
}

(EDIT!): I fixed the AlertDialog by changing the 2 ‘Else If’ statements to just ‘If’ statements. However, my timer still doesn’t work :(, any help?

Answer 1

suppose number is the variable you are showing in the TextView, consider following code,

int number = 10; 

if ( number > 0 ) 
{
    yourTextView.setText ( String.valueOf ( number ) ); 
}
else
{
    // do not set text
}