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