如何使用textwacher格式化xxx-xxx-xx-xx之类的电话号码
尝试下面的代码,它删除我的元素时不起作用
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) {
}
});
最佳答案
终于我做到了这样:
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);
}
}
}
MainActivity.class
et_phone_num = (EditText) findViewById(R.id.et_phone_num);
et_phone_num.addTextChangedListener(new PhoneNumberTextWatcher(et_phone_num));
activity_main.xml
<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" />