Question

如何使用 textwacher 格式化 xxx-xxx-xx-xx 等电话号码尝试下面的代码，但是当我删除元素时它不起作用

 et_phone_num.addTextChangedListener(new PhoneNumberFormattingTextWatcher());


        et_phone_num.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {


            }

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

                et_phone_num.setOnKeyListener(new View.OnKeyListener() {
                    @Override
                    public boolean onKey(View v, int keyCode, KeyEvent event) {
                        MyLog.e("onkeychange","key "+keyCode);
                        if(keyCode == KeyEvent.KEYCODE_DEL) {
                            keyDel = 1;
                            MyLog.e("onkeychange","key 1");
                        }
                        return false;
                    }
                });

                if (keyDel == 0) {
                    MyLog.e("onkeychange", "if key 0");
                    int len = et_phone_num.getText().toString().length();
                    if (len == 3) {
                        et_phone_num.setText(et_phone_num.getText().toString() + "-");
                        et_phone_num.setSelection(et_phone_num.getText().toString().length());
                    } else if (len == 7) {
                        et_phone_num.setText(et_phone_num.getText().toString() + "-");
                        et_phone_num.setSelection(et_phone_num.getText().toString().length());
                    } else if (len == 10) {
                        et_phone_num.setText(et_phone_num.getText().toString() + "-");
                        et_phone_num.setSelection(et_phone_num.getText().toString().length());
                    }


                } else {
                    MyLog.e("onkeychange", "else key 0");
                    keyDel = 0;
                }

            }

            @Override
            public void afterTextChanged(Editable s) {

            }
        });

Answer 1

最后我这样做了：

public class PhoneNumberTextWatcher implements TextWatcher {

private static final String TAG = PhoneNumberTextWatcher.class
        .getSimpleName();
private EditText edTxt;
private boolean isDelete;

public PhoneNumberTextWatcher(EditText edTxtPhone) {
    this.edTxt = edTxtPhone;
    edTxt.setOnKeyListener(new OnKeyListener() {

        @Override
        public boolean onKey(View v, int keyCode, KeyEvent event) {
            if (keyCode == KeyEvent.KEYCODE_DEL) {
                isDelete = true;
            }
            return false;
        }
    });
}

public void onTextChanged(CharSequence s, int start, int before, int count) {
}

public void beforeTextChanged(CharSequence s, int start, int count,
        int after) {
}

public void afterTextChanged(Editable s) {

    if (isDelete) {
        isDelete = false;
        return;
    }
    String val = s.toString();
    String a = "";
    String b = "";
    String c = "";
    if (val != null && val.length() > 0) {
        val = val.replace("-", "");
        if (val.length() >= 3) {
            a = val.substring(0, 3);
        } else if (val.length() < 3) {
            a = val.substring(0, val.length());
        }
        if (val.length() >= 6) {
            b = val.substring(3, 6);
            c = val.substring(6, val.length());
        } else if (val.length() > 3 && val.length() < 6) {
            b = val.substring(3, val.length());
        }
        StringBuffer stringBuffer = new StringBuffer();
        if (a != null && a.length() > 0) {
            stringBuffer.append(a);
            if (a.length() == 3) {
                stringBuffer.append("-");
            }
        }
        if (b != null && b.length() > 0) {
            stringBuffer.append(b);
            if (b.length() == 3) {
                stringBuffer.append("-");
            }
        }
        if (c != null && c.length() > 0) {
            stringBuffer.append(c);
        }
        edTxt.removeTextChangedListener(this);
        edTxt.setText(stringBuffer.toString());
        edTxt.setSelection(edTxt.getText().toString().length());
        edTxt.addTextChangedListener(this);
    } else {
        edTxt.removeTextChangedListener(this);
        edTxt.setText("");
        edTxt.addTextChangedListener(this);
    }

}
 }

<强> MainActivity.class

et_phone_num = (EditText) findViewById(R.id.et_phone_num);
 et_phone_num.addTextChangedListener(new PhoneNumberTextWatcher(et_phone_num));

<强> activity_main.xml中

 <EditText
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="0.6"
        android:visibility="visible"
        android:id="@+id/et_phone_num"
        android:inputType="phone"
        android:maxLength="12"
        android:digits="0123456789"
        android:background="@drawable/phone_edittext_drawable"
        android:gravity="center"
        android:hint="5XX-XXX-XXXX"
        android:imeOptions="actionDone"
        android:textColor="@color/cc" />

Answer 2

使用Masked-EditText库。

按照下面的方式传递你的面具。

null

注意：如果要删除错误的数字而不是将光标放在该数字之前并输入正确的数字，则此Masked-EditText库将更改它。

android edittext textwatcher格式的电话号码如xxx-xxx-xx-xx

2 个答案: