EditText ，
package com.gx_school.model;
import android.content.Context;
import android.text.Editable;
import android.text.TextWatcher;
import android.widget.EditText;
public class EditTextWatcher{
private Context mContext;
public EditTextWatcher(Context context){
mContext = context;
}
/**
*
* @param editText
*/
public void setPricePoint(final EditText editText) {
editText.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
if (s.toString().contains(".")) {
if (s.length() - 1 - s.toString().indexOf(".") > 2) {
s = s.toString().subSequence(0,
s.toString().indexOf(".") + 3);
editText.setText(s);
editText.setSelection(s.length());
}
}
if (s.toString().trim().substring(0).equals(".")) {
s = "0" + s;
editText.setText(s);
editText.setSelection(2);
}
if (s.toString().startsWith("0")
&& s.toString().trim().length() > 1) {
if (!s.toString().substring(1, 2).equals(".")) {
editText.setText(s.subSequence(0, 1));
editText.setSelection(1);
return;
}
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void afterTextChanged(Editable s) {
// TODO Auto-generated method stub
}
});
}
/**
*
* @param editText
* @param len
*/
public void setEditLength(final EditText editText, final int len) {
editText.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
if(s.toString().length() > len){
String str = s.toString().subSequence(0, len).toString();
editText.setText(str);
editText.setSelection(str.length());
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void afterTextChanged(Editable s) {
// TODO Auto-generated method stub
}
});
}
}
private EditText edtTransFee;
edtTransFee = (EditText) findViewById(R.id.tv_arriver_trans_fee);
new EditTextWatcher(this).setPricePoint(edtTransFee);