VIVO手机上del键无效OnKeyListener不响应问题

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);
        }

    }
    /**
     *
     * 功能描述: 

     * 〈功能详细描述〉
     *
     * @param delKeyEventListener EditText删除回调
     */
    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