在Android editText中一起使用keyListener和textChangedListener

Question

我正在尝试同时使用

editPhoneNumber.setKeyListener(new KeyListener() 

和

editPhoneNumber.addTextChangedListener(new TextWatcher()     

在一起，但似乎它们相互阻挡，我的editText不再可编辑。

感谢您的帮助

编辑：

我正在尝试将输入格式化为用户输入：

输入：5551112233 格式化输入：（555）111 22 33

格式化部分运行良好，但我尝试添加KeyListener的原因是当用户尝试删除（通过按下删除键）并且当输入长度变为-let的时候 - 12个字符TextChangedListener中断用户删除总是在文本的末尾添加一个“”。这就是为什么我在输入是删除键时尝试禁用TextChangedListener。

boolean isResetClicked;
EditText editPhoneNumber;
Button buttonReset;

protected void onCreate(Bundle savedInstanceState)
{
    editPhoneNumber = (EditText) findViewById(R.id.editPhoneNumber);
    buttonReset = (Button) findViewById(R.id.buttonResetPhoneNumber);
    buttonReset.setOnClickListener(new OnClickListener()
    {

        @Override
        public void onClick(View v)
        {
            isResetClicked = true;
            editPhoneNumber.getText().clear();
            isResetClicked = false;
        }
    });

    editPhoneNumber.setKeyListener(new KeyListener()
    {

        @Override
        public boolean onKeyUp(View view, Editable text, int keyCode,
                KeyEvent event)
        {
            if (keyCode == KeyEvent.KEYCODE_DEL)
            {
                isResetClicked = true;
            }
            else
                isResetClicked=false;
            return false;
        }

        @Override
        public boolean onKeyOther(View view, Editable text, KeyEvent event)
        {
            // TODO Auto-generated method stub
            return false;
        }

        @Override
        public boolean onKeyDown(View view, Editable text, int keyCode,
                KeyEvent event)
        {

            return false;
        }

        @Override
        public int getInputType()
        {
            // TODO Auto-generated method stub
            return 0;
        }

        @Override
        public void clearMetaKeyState(View view, Editable content,
                int states)
        {
            // TODO Auto-generated method stub

        }
    });

    editPhoneNumber.addTextChangedListener(new TextWatcher()
    {

        @Override
        public void onTextChanged(CharSequence s, int start, int before,
                int count)
        {
            String str;

            if (!isResetClicked)
            {
                if (s.length() == 0)
                {
                    editPhoneNumber.setText("(");
                }
                if (s.length() == 1)
                {
                    str = editPhoneNumber.getText().toString();
                    editPhoneNumber.setText("(" + str);
                    editPhoneNumber.setSelection(editPhoneNumber.getText()
                            .length());
                }
                if (s.length() == 4)
                {
                    str = editPhoneNumber.getText().toString();
                    editPhoneNumber.setText(str + ") ");
                    editPhoneNumber.setSelection(editPhoneNumber.getText()
                            .length());
                }
                if (s.length() == 9)
                {
                    str = editPhoneNumber.getText().toString();
                    editPhoneNumber.setText(str + " ");
                    editPhoneNumber.setSelection(editPhoneNumber.getText()
                            .length());
                }
                if (s.length() == 12)
                {
                    str = editPhoneNumber.getText().toString();
                    editPhoneNumber.setText(str + " ");
                    editPhoneNumber.setSelection(editPhoneNumber.getText()
                            .length());
                }

            }

        }

        @Override
        public void beforeTextChanged(CharSequence s, int start, int count,
                int after)
        {
            // TODO Auto-generated method stub

        }

        @Override
        public void afterTextChanged(Editable s)
        {
        }
    });

编辑2：

即使我仍然无法理解为什么两个事件监听器会阻止我的编辑文本，我通过修改代码解决了我的问题：

@Override
        public void onTextChanged(CharSequence s, int start, int before,
                int count)
        {
            String str;
            /*Log.i("ED",
                    "LengthBefore before (lengthBefore = lengthAfter;): "
                            + String.valueOf(lengthBefore));*/
            lengthBefore = lengthAfter;
            lengthAfter = s.length();
            /*Log.i("ED",
                    "LengthBefore after (lengthBefore = lengthAfter;): "
                            + String.valueOf(lengthBefore));*/
            if ((lengthBefore < lengthAfter) || lengthBefore == 0)
            {
                if (!isResetClicked)
                {
                    if (s.length() == 0)
                    {
                        editPhoneNumber.setText("(");
                    }
                    if (s.length() == 1)
                    {
                        str = editPhoneNumber.getText().toString();
                        editPhoneNumber.setText("(" + str);
                        editPhoneNumber.setSelection(editPhoneNumber
                                .getText().length());
                    }
                    if (s.length() == 4)
                    {
                        str = editPhoneNumber.getText().toString();
                        editPhoneNumber.setText(str + ") ");
                        editPhoneNumber.setSelection(editPhoneNumber
                                .getText().length());
                    }
                    if (s.length() == 9)
                    {
                        str = editPhoneNumber.getText().toString();
                        editPhoneNumber.setText(str + " ");
                        editPhoneNumber.setSelection(editPhoneNumber
                                .getText().length());
                    }
                    if (s.length() == 12)
                    {
                        str = editPhoneNumber.getText().toString();
                        editPhoneNumber.setText(str + " ");
                        editPhoneNumber.setSelection(editPhoneNumber
                                .getText().length());
                    }

                }
            }
            lengthAfter = s.length();
            /*Log.i("ED", "LengthAfter after (lengthAfter = s.length();): "
                    + String.valueOf(lengthAfter));
            Log.i("ED", "LengthBefore: " + String.valueOf(lengthBefore));
            Log.i("ED", "LengthAfter: " + String.valueOf(lengthAfter));*/

        }

当用户尝试删除字符时，新长度将比旧字符短。所以我阻止代码通过以下方式检查长度：

if ((lengthBefore < lengthAfter) || lengthBefore == 0)