需要格式化的格式为：xxx xxxx xxxx
有两种方式：1.为监听当前输入的长度，当长度为第四位，九位的时候，在原内容上追加空格。（from stackOverFlow）2.每次输入后，格式化当前内容。
方式一：
public class PhoneEditText extends EditText implements TextWatcher {
int beforeLen = 0;
int afterLen = 0;
public PhoneEditText(Context context) {
super(context);
setInputType(InputType.TYPE_CLASS_PHONE);
setFilters(new InputFilter[]{new InputFilter.LengthFilter(13)});
addTextChangedListener(this);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
beforeLen = s.length();
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
String txt = s.toString();
if (txt.isEmpty()) return;
afterLen = s.length();
if (afterLen > beforeLen) {
if (afterLen == 4 || afterLen == 9) {
setText(new StringBuffer(txt).insert(txt.length() - 1, " ").toString());
}
} else {
if (txt.endsWith(" ") && (afterLen == 9 || afterLen == 4)) {
setText(new StringBuffer(txt).delete(afterLen - 1, afterLen).toString());
}
}
setSelection(afterLen);
}
public String getPhoneNumber() {
CharSequence text = super.getText();
return text.toString().replaceAll(" ", "");
}
public String getOriginalNumber() {
return getText().toString();
}
}
第二种方法：
public class PhoneEditText extends EditText implements TextWatcher {
public PhoneEditText(Context context) {
super(context);
setInputType(InputType.TYPE_CLASS_PHONE);
setFilters(new InputFilter[]{new InputFilter.LengthFilter(13)});
addTextChangedListener(this);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
String txt = getPhoneNumber();
if (txt.isEmpty()) return;
flag = !flag;
if (flag) {
String result = getFormatString(txt);
setText(result);
setSelection(result.length());
}
}
boolean flag = false;
private String getFormatString(String str) {
String result;
if (str.length() > 7) {
result = str.substring(0, 3) + " " + str.substring(3, 7) + " " + str.substring(7, str.length());
} else if (str.length() > 3) {
result = str.substring(0, 3) + " " + str.substring(3, str.length());
} else {
result = str;
}
return result;
}
public String getPhoneNumber() {
CharSequence text = super.getText();
return text.toString().replaceAll(" ", "");
}
public String getOriginalNumber() {
return getText().toString();
}
}
ps：第一种方法如果不按顺序输入，格式化不了。
原文：http://www.cnblogs.com/songsyl1207/p/4463721.html