CODEWITHSUNDEEP
javaandroidandroid-studiocalculatorbackspace
Wild_MJ
Wild_MJ

Reputation: 37

Making backspace button in java that deletes the last character in a Textview

I want to make a button that acts like a backspace but I cant find the perfect code for doing it, like I made a button that adds certain characters to a Textview using append() method in a single line of code instead of making a multiple line thingy. So my question is: is there a way to do it in a backspace button code, I know I can make a multiple line/long code, but is there an opposite to append()?

Upvotes: 1

Views: 1697

Answers (2)

Rehan Khan
Rehan Khan

Reputation: 1291

To remove Character using Backspace Button.

First initialize view

   Button BackSpaceButton;

Then Find the View

   BackSpaceButton = findViewById(R.id.BackBtn);

Then Add Listener to Button

   BackSpaceButton.setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View view) {
             String word = EditTextInputNumbers.getText().toString();
             int input = word.length();
             if (input > 0) {
              EditTextInputNumbers.setText(word.substring(0, input - 1));
          }
        }
       });

Upvotes: 0

Damilola Omoyiwola
Damilola Omoyiwola

Reputation: 116

This works for character backspace: 

buttonBackspace.setOnClickListener(new View.OnClickListener() {

        public void onClick(View view) {
           String word = editText.getText().toString();               
           int input = word.length();
              if (input > 0){
                 editText.setText(word.substring(0, input-1));
              }          
           }
});

Upvotes: 2

Related Questions