| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.example.android.listviewitemanimations; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| |
| import android.content.Context; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.ArrayAdapter; |
| |
| public class StableArrayAdapter extends ArrayAdapter<String> { |
| |
| HashMap<String, Integer> mIdMap = new HashMap<String, Integer>(); |
| View.OnTouchListener mTouchListener; |
| |
| public StableArrayAdapter(Context context, int textViewResourceId, |
| List<String> objects, View.OnTouchListener listener) { |
| super(context, textViewResourceId, objects); |
| mTouchListener = listener; |
| for (int i = 0; i < objects.size(); ++i) { |
| mIdMap.put(objects.get(i), i); |
| } |
| } |
| |
| @Override |
| public long getItemId(int position) { |
| String item = getItem(position); |
| return mIdMap.get(item); |
| } |
| |
| @Override |
| public boolean hasStableIds() { |
| return true; |
| } |
| |
| @Override |
| public View getView(int position, View convertView, ViewGroup parent) { |
| View view = super.getView(position, convertView, parent); |
| if (view != convertView) { |
| // Add touch listener to every new view to track swipe motion |
| view.setOnTouchListener(mTouchListener); |
| } |
| return view; |
| } |
| |
| } |