VIVO手机上del键无效OnKeyListener不响应的原因及解决方法

在修改交易密码界面用到一个自定义输入框

类似这种（原谅丑了点~）

结果昨天有用户反馈在VIVO手机上回出现，Del键无效的问题~~~

最后发现是：EdiText的OnKeyListener没有响应。

最后搜搜了一下，找到了解决方案：重写EdiTextView的InputConnectionWrapper的方法后解决了问题：

代码如下：

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(super.onCreateInputConnection(outAttrs),
 true);
  }
  private class ZanyInputConnection extends InputConnectionWrapper {
    public ZanyInputConnection(InputConnection target, boolean mutable) {
      super(target, mutable);
    }
    @Override
    public boolean sendKeyEvent(KeyEvent event) {
      if (event.getAction() == KeyEvent.ACTION_DOWN
   && event.getKeyCode() == KeyEvent.KEYCODE_DEL) {
 if (delKeyEventListener != null) {
   delKeyEventListener.onDeleteClick();
   return true;
 }
      }
      return super.sendKeyEvent(event);
    }
    @Override
    public boolean deleteSurroundingText(int beforeLength, int afterLength) {
      if (beforeLength == 1 && afterLength == 0) {
 return sendKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN,
     KeyEvent.KEYCODE_DEL))
     && sendKeyEvent(new KeyEvent(KeyEvent.ACTION_UP,
     KeyEvent.KEYCODE_DEL));
      }
      return super.deleteSurroundingText(beforeLength, afterLength);
    }
  }
  
  public void setDelKeyEventListener(onDelKeyEventListener delKeyEventListener) {
    this.delKeyEventListener = delKeyEventListener;
  }
  public interface onDelKeyEventListener {
    void onDeleteClick();
  }
}

参考：http://stackoverflow.com/questions/4886858/android-edittext-deletebackspace-key-event%22

以上所述是小编给大家介绍的VIVO手机上del键无效OnKeyListener不响应的原因及解决方法，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对考高分网网站的支持！