[FIXED] Trying to clear one character from TextView

Issue

I made a calculator app and I made a clear Button that clears the TextView.

private TextView _screen;
private String display = "";

private void clear() {
    display = "";
    currentOperator = "";
    result = "";
}

I got this code from Tutorial and set the clear button onClick to onClickClear, so it do that part of the code and it works. Now I have made this code delete only one number at a time and it don't work. What can be done to delete only one number at a time?

public void onClickdel(View v) {
    display = "";
}

Solution

Below code will delete one char from textView.

String display = textView.getText().toString();

if(!TextUtils.isEmpty(display)) {
    display  = display.substring(0, display.length() - 1);

    textView.setText(display);
}

Answered By - Muthukrishnan Rajendran
Answer Checked By - Marie Seifert (JavaFixing Admin)