setText(“”) not working

Question

Why don't work setText("")? EditText stores last input data and when i call the AlertDialog again, show stored data.

case IDD_SET_NAME:
builder=new AlertDialog.Builder(this);
builder.setTitle("Name Title");

EditText input = new EditText(this);
input.setText("");//This method not work
builder.setView(input);

   builder.setPositiveButton("Create", onClickListener_DialogResetPin);
   builder.setNeutralButton("Cancel", onClickListener_DialogResetPin);

   // create and show dialog
   dialog = builder.create();
   dialog.show();

    Button btnOK = dialog.getButton(AlertDialog.BUTTON_POSITIVE);
    btnOK.setOnClickListener(onClickListener_btnOK);

    break;

Answer 1

Your Dialog is not destroyed if you dismiss it. So, if you show it again, it will not be recreated and input.setText(""); will not run. If you want the dialog to be recreated, use removeDialog() instead of dismissDialog()

Answer 2

You are in onCreateDialog. This is called the first time you show a dialog, only. If you have modifications to perform on your alert, you should do it in onPrepareDialog.

A little debugging and documentation reading would have helped you here.