1 /* 2 * Copyright (C) 2015 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.nfcprovisioning; 18 19 import android.text.Editable; 20 import android.text.TextWatcher; 21 22 /** 23 * This class wraps {@link TextWatcher} and delegates {@link TextWatcher#afterTextChanged} event to 24 * {@link OnTextChangedListener} while hiding all other unnecessary events. 25 */ 26 public class TextWatcherWrapper implements TextWatcher { 27 28 private final int mId; 29 private final OnTextChangedListener mListener; 30 31 public TextWatcherWrapper(int id, OnTextChangedListener listener) { 32 mId = id; 33 mListener = listener; 34 } 35 36 @Override 37 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 38 // Ignore 39 } 40 41 @Override 42 public void onTextChanged(CharSequence s, int start, int before, int count) { 43 // Ignore 44 } 45 46 @Override 47 public void afterTextChanged(Editable s) { 48 mListener.onTextChanged(mId, s.toString()); 49 } 50 51 public interface OnTextChangedListener { 52 public void onTextChanged(int id, String s); 53 } 54 55 } 56
