一、前言:
在展示手机号码的时候,会遇到手机号按照344格式效果,这种效果的实现遇到过两次了,也踩过了许多的坑,在这里记录一下一个完美实现这种效果的方式。输入、插入、删除等光标位置停留比较好的交互效果。
二、效果:
捕获.PNG三、代码:
public class ZpPhoneEditText extends AppCompatEditText implements TextWatcher {
// 特殊下标位置
private static final int PHONE_INDEX_3 = 3;
private static final int PHONE_INDEX_4 = 4;
private static final int PHONE_INDEX_8 = 8;
private static final int PHONE_INDEX_9 = 9;
public ZpPhoneEditText(Context context) {
super(context);
initView();
}
public ZpPhoneEditText(Context context, AttributeSet attrs) {
super(context, attrs);
initView();
}
public ZpPhoneEditText(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
initView();
}
private void initView() {
setFilters(new InputFilter[]{
new InputFilter() {
@Override
public CharSequence filter(CharSequence source, int start, int end,
Spanned spanned, int dstart, int dend) {
if (" ".equals(source.toString()) || source.toString().contentEquals("\n") || dstart == 13) {
return "";
} else {
return null;
}
}
}
});
}
@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 != PHONE_INDEX_3 && i != PHONE_INDEX_8 && s.charAt(i) == ' ') {
continue;
} else {
sb.append(s.charAt(i));
if ((sb.length() == PHONE_INDEX_4 || sb.length() == PHONE_INDEX_9) && sb.charAt(sb.length() - 1) != ' ') {
sb.insert(sb.length() - 1, ' ');
}
}
}
if (!sb.toString().equals(s.toString())) {
int index = start + 1;
if (sb.charAt(start) == ' ') {
if (before == 0) {
index++;
} else {
index--;
}
} else {
if (before == 1) {
index--;
}
}
setText(sb.toString());
setSelection(index);
}
}
@Override
public void afterTextChanged(Editable s) {
}
// 获得不包含空格的手机号
public String getPhoneText() {
String str = getText().toString();
return replaceBlank(str);
}
private String replaceBlank(String str) {
String dest = "";
if (str != null) {
Pattern p = Pattern.compile("\\s*|\t|\r|\n");
Matcher m = p.matcher(str);
if (m.find()) {
dest = m.replaceAll("");
}
}
return dest;
}
}
布局XML
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical">
<com.example.zpdemo.widget.ZpPhoneEditText
android:id="@+id/et_phone"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:hint="格式化手机号344"
android:inputType="phone"
android:maxLength="13"/>
<Button
android:id="@+id/btn_phone"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:textColor="#f00"
android:textSize="16sp"
android:text="获得手机号"/>
</LinearLayout>
应用
private ZpPhoneEditText etPhone;
private Button btnPhone;
private void initView() {
etPhone = (ZpPhoneEditText) findViewById(R.id.et_phone);
btnPhone = (Button) findViewById(R.id.btn_phone);
btnPhone.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
btnPhone.setText(etPhone.getPhoneText());
}
});
}
效果杠杠的,代码比较完整,亲自尝试一下比较好。。。
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