1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.example.android.apprestrictionenforcer; 18 19 import android.text.TextWatcher; 20 21 /** 22 * This is a wrapper around {@link TextWatcher} that overrides 23 * {@link TextWatcher#beforeTextChanged(CharSequence, int, int, int)} and 24 * {@link TextWatcher#onTextChanged(CharSequence, int, int, int)} with empty bodies. 25 */ 26 public abstract class EasyTextWatcher implements TextWatcher { 27 28 @Override beforeTextChanged(CharSequence s, int start, int count, int after)29 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 30 // Do nothing 31 } 32 33 @Override onTextChanged(CharSequence s, int start, int before, int count)34 public void onTextChanged(CharSequence s, int start, int before, int count) { 35 // Do nothing 36 } 37 38 } 39