自定义手机号码分割样式"188 8888 8888"的EditText

import android.content.Context;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.widget.EditText;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
* 用于手机号格式“188 8888 8888”
* Created by Alex on 2017/2/28.
*/
public class PhoneEditText extends EditText implements TextWatcher {

public PhoneEditText(Context context) {
super(context);
}

public PhoneEditText(Context context, AttributeSet attrs) {
super(context, attrs);
}

public PhoneEditText(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}

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

}

@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
super.onTextChanged(s, start, before, count);
if (s == null || s.length() == 0) return;
StringBuilder sb = new StringBuilder();
for (int i = 0; i < s.length(); i++) {
if (i != 3 && i != 8 && s.charAt(i) == ' ') {
continue;
} else {
sb.append(s.charAt(i));
if ((sb.length() == 4 || sb.length() == 9) && sb.charAt(sb.length() - 1) != ' ') {
sb.insert(sb.length() - 1, ' ');
}
}
}
if (!TextUtils.isEmpty(sb.toString().trim()) && !sb.toString().equals(s.toString())) {
        setText(sb.toString());
        setSelection(sb.length());
     }
}

@Override
public void afterTextChanged(Editable s) {

}

/**
* 获取电话号码
* @return
*/
public String getPhoneText() {
String str = getText().toString();
return replaceBlank(str);
}

/**
* 去除字符串中的空格、回车、换行符、制表符
*
* @param str
*
* @return
*/
private String replaceBlank(String str) {
String dest = "";
if (str != null) {
Pattern p = Pattern.compile("\\s*|\t|\r|\n");
Matcher m = p.matcher(str);
dest = m.replaceAll("");
}
return dest;
}
}

<com.alex.demo.PhoneEditText
android:id="@id/id_edit_view_a"
style="@style/StandardEditText"
android:hint="请输入手机号"
android:inputType="phone"
android:maxLength="13" />