1/* 2 * Copyright (C) 2013 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 */ 16package com.android.transitiontests; 17 18import android.app.Activity; 19import android.content.Context; 20import android.os.Bundle; 21import android.view.View; 22import android.widget.AdapterView; 23import android.widget.ArrayAdapter; 24import android.widget.LinearLayout; 25import android.widget.ListView; 26import android.widget.TextView; 27 28 29import java.util.ArrayList; 30import java.util.HashMap; 31import java.util.List; 32 33public class ListViewAddRemoveNoTransition extends Activity { 34 35 final ArrayList<String> numList = new ArrayList<String>(); 36 37 @Override 38 public void onCreate(Bundle savedInstanceState) { 39 super.onCreate(savedInstanceState); 40 setContentView(R.layout.list_view_add_remove); 41 42 final LinearLayout container = (LinearLayout) findViewById(R.id.container); 43 44 final ListView listview = (ListView) findViewById(R.id.listview); 45 for (int i = 0; i < 200; ++i) { 46 numList.add(Integer.toString(i)); 47 } 48 final StableArrayAdapter adapter = new StableArrayAdapter(this, 49 android.R.layout.simple_list_item_1, numList); 50 listview.setAdapter(adapter); 51 52 listview.setOnItemClickListener(new AdapterView.OnItemClickListener() { 53 54 @Override 55 public void onItemClick(AdapterView<?> parent, final View view, int position, long id) { 56 String item = (String) parent.getItemAtPosition(position); 57 for (int i = 0; i < listview.getChildCount(); ++i) { 58 TextView v = (TextView) listview.getChildAt(i); 59 if (!item.equals(v.getText())) { 60 v.setHasTransientState(true); 61 } 62 } 63 numList.remove(item); 64 adapter.notifyDataSetChanged(); 65 view.postDelayed(new Runnable() { 66 @Override 67 public void run() { 68 for (int i = 0; i < listview.getChildCount(); ++i) { 69 TextView v = (TextView) listview.getChildAt(i); 70 v.setHasTransientState(false); 71 } 72 } 73 }, 200); 74 } 75 76 }); 77 } 78 79 private class StableArrayAdapter extends ArrayAdapter<String> { 80 81 HashMap<String, Integer> mIdMap = new HashMap<String, Integer>(); 82 83 public StableArrayAdapter(Context context, int textViewResourceId, 84 List<String> objects) { 85 super(context, textViewResourceId, objects); 86 for (int i = 0; i < objects.size(); ++i) { 87 mIdMap.put(objects.get(i), i); 88 } 89 } 90 91 @Override 92 public long getItemId(int position) { 93 String item = getItem(position); 94 return mIdMap.get(item); 95 } 96 97 @Override 98 public boolean hasStableIds() { 99 return true; 100 } 101 102 } 103} 104