1/*
2 * Copyright (C) 2010 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
17package com.android.contacts.widget;
18
19import android.app.ListActivity;
20import android.content.Context;
21import android.database.Cursor;
22import android.database.MatrixCursor;
23import android.os.Bundle;
24import android.os.Handler;
25import android.view.LayoutInflater;
26import android.view.View;
27import android.view.ViewGroup;
28import android.widget.TextView;
29
30import com.android.contacts.R;
31import com.android.contacts.common.list.PinnedHeaderListAdapter;
32
33/**
34 * An activity that demonstrates various use cases for the {@link com.android.contacts.common.list.PinnedHeaderListView}.
35 * If we decide to move PinnedHeaderListView to the framework, this class could go
36 * to API demos.
37 */
38public class PinnedHeaderListDemoActivity extends ListActivity {
39
40    public final static class TestPinnedHeaderListAdapter extends PinnedHeaderListAdapter {
41
42        public TestPinnedHeaderListAdapter(Context context) {
43            super(context);
44            setPinnedPartitionHeadersEnabled(true);
45        }
46
47        private String[] mHeaders;
48        private int mPinnedHeaderCount;
49
50        public void setHeaders(String[] headers) {
51            this.mHeaders = headers;
52        }
53
54        @Override
55        protected View newHeaderView(Context context, int partition, Cursor cursor,
56                ViewGroup parent) {
57            LayoutInflater inflater = LayoutInflater.from(context);
58            return inflater.inflate(R.layout.list_section, null);
59        }
60
61        @Override
62        protected void bindHeaderView(View view, int parition, Cursor cursor) {
63            TextView headerText = (TextView)view.findViewById(R.id.header_text);
64            headerText.setText(mHeaders[parition]);
65        }
66
67        @Override
68        protected View newView(Context context, int partition, Cursor cursor, int position,
69                ViewGroup parent) {
70            LayoutInflater inflater = LayoutInflater.from(context);
71            return inflater.inflate(android.R.layout.simple_list_item_1, null);
72        }
73
74        @Override
75        protected void bindView(View v, int partition, Cursor cursor, int position) {
76            TextView text = (TextView)v.findViewById(android.R.id.text1);
77            text.setText(cursor.getString(1));
78        }
79
80        @Override
81        public View getPinnedHeaderView(int viewIndex, View convertView, ViewGroup parent) {
82            LayoutInflater inflater = LayoutInflater.from(getContext());
83            View view = inflater.inflate(R.layout.list_section, parent, false);
84            view.setFocusable(false);
85            view.setEnabled(false);
86            bindHeaderView(view, viewIndex, null);
87            return view;
88        }
89
90        @Override
91        public int getPinnedHeaderCount() {
92            return mPinnedHeaderCount;
93        }
94    }
95
96    private Handler mHandler = new Handler();
97
98    @Override
99    protected void onCreate(Bundle bundle) {
100        super.onCreate(bundle);
101
102        setContentView(R.layout.pinned_header_list_demo);
103
104        final TestPinnedHeaderListAdapter adapter = new TestPinnedHeaderListAdapter(this);
105
106        Bundle extras = getIntent().getExtras();
107        int[] counts = extras.getIntArray("counts");
108        String[] names = extras.getStringArray("names");
109        boolean[] showIfEmpty = extras.getBooleanArray("showIfEmpty");
110        boolean[] hasHeader = extras.getBooleanArray("headers");
111        int[] delays = extras.getIntArray("delays");
112
113        if (counts == null || names == null || showIfEmpty == null || delays == null) {
114            throw new IllegalArgumentException("Missing required extras");
115        }
116
117        adapter.setHeaders(names);
118        for (int i = 0; i < counts.length; i++) {
119            adapter.addPartition(showIfEmpty[i], names[i] != null);
120            adapter.mPinnedHeaderCount = names.length;
121        }
122        setListAdapter(adapter);
123        for (int i = 0; i < counts.length; i++) {
124            final int sectionId = i;
125            final Cursor cursor = makeCursor(names[i], counts[i]);
126            mHandler.postDelayed(new Runnable() {
127
128                public void run() {
129                    adapter.changeCursor(sectionId, cursor);
130
131                }
132            }, delays[i]);
133        }
134    }
135
136    private Cursor makeCursor(String name, int count) {
137        MatrixCursor cursor = new MatrixCursor(new String[]{"_id", name});
138        for (int i = 0; i < count; i++) {
139            cursor.addRow(new Object[]{i, name + "[" + i + "]"});
140        }
141        return cursor;
142    }
143}
144