How to disable the button if Edittext is empty and pass the Edittext input to another activity in android studio?

Question

I am creating a game and the players need to put their name into the EditText and pass it to another screen, but the button must be disabled while the EditText is empty. And it will become enabled if the players enter their name and when they press Enter, it will proceed to another screen welcoming the player.

question from:https://stackoverflow.com/questions/66058430/how-to-disable-the-button-if-edittext-is-empty-and-pass-the-edittext-input-to-an

Answer 1

You can add text changed listener to your edit text and if user entered the name enable the button.

yourEditText.addTextChangedListener(new TextWatcher() {

   public void afterTextChanged(Editable s) {
     // enable your button here.
   }

   public void beforeTextChanged(CharSequence s, int start, int count, int after) 
   {}

   public void onTextChanged(CharSequence s, int start, int before, int count)
   {}
});

For passing this value into another activity you can add bundle to your intent:

  Intent intent = new Intent(FirstActivity.this, SecondActivity.class);
  Bundle b = new Bundle();
  b.putString("playerName", name); // Player name
  intent.putExtras(b);
  startActivity(intent);