The reason and solution for the del key invalid on VIVO mobile phone and the onKeyListener not responding

Use a custom input box in the interface to modify the transaction password

Similar to this (forgive me for being ugly~)

As a result, a user feedback yesterday appeared on the VIVO phone, and the Del key was invalid~~~

The final discovery is:EdiText's OnKeyListenerNo response.

Finally, I searched and found the solution: RewriteInputConnectionWrapper for EdiTextViewThe problem was solved after the method:

The code is as follows:

public class ZanyEditText extends EditText {
  private OnDelKeyEventListener delKeyEventListener;
  public ZanyEditText(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
  }
  public ZanyEditText(Context context, AttributeSet attrs) {
    super(context, attrs);
  }
  public ZanyEditText(Context context) {
    super(context);
  }
  @Override
  public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
    return new ZanyInputConnection((outAttrs),
        true);
  }
  private class ZanyInputConnection extends InputConnectionWrapper {
    public ZanyInputConnection(InputConnection target, boolean mutable) {
      super(target, mutable);
    }
    @Override
    public boolean sendKeyEvent(KeyEvent event) {
      if (() == KeyEvent.ACTION_DOWN
          &amp;&amp; () == KeyEvent.KEYCODE_DEL) {
        if (delKeyEventListener != null) {
          ();
          return true;
        }
      }
      return (event);
    }
    @Override
    public boolean deleteSurroundingText(int beforeLength, int afterLength) {
      if (beforeLength == 1 &amp;&amp; afterLength == 0) {
        return sendKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN,
            KeyEvent.KEYCODE_DEL))
            &amp;&amp; sendKeyEvent(new KeyEvent(KeyEvent.ACTION_UP,
            KeyEvent.KEYCODE_DEL));
      }
      return (beforeLength, afterLength);
    }
  }
  /**
    *
    * Function description: <br>
    * 〈Detailed Function Description〉
    *
    * @param delKeyEventListener EditText delete callback
    */
  public void setDelKeyEventListener(OnDelKeyEventListener delKeyEventListener) {
     = delKeyEventListener;
  }
  public interface OnDelKeyEventListener {
    void onDeleteClick();
  }
}

refer to:/questions/4886858/android-edittext-deletebackspace-key-event%22

The above is the reason and solution for the del key on VIVO mobile phone that I introduced to you and the reason why OnKeyListener is not responding. I hope it will be helpful to you. If you have any questions, please leave me a message and the editor will reply to you in time. Thank you very much for your support for my website!