ObjectBrowser.java revision 0809c0e4c61fb1f64925081c811df86c73f7070f 
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.camerabrowser;
18
19import android.app.ListActivity;
20import android.content.Intent;
21import android.database.Cursor;
22import android.net.Uri;
23import android.os.Bundle;
24import android.provider.Mtp;
25import android.util.Log;
26import android.view.View;
27import android.widget.ListAdapter;
28import android.widget.ListView;
29import android.widget.SimpleCursorAdapter;
30
31 /**
32 * A list view displaying all objects within a container (folder or storage unit).
33 */
34public class ObjectBrowser extends ListActivity {
35
36    private static final String TAG = "ObjectBrowser";
37
38    private ListAdapter mAdapter;
39    private int mDeviceID;
40    private int mStorageID;
41    private int mObjectID;
42
43    private static final String[] OBJECT_COLUMNS =
44        new String[] { Mtp.Object._ID, Mtp.Object.NAME, Mtp.Object.FORMAT };
45
46    @Override
47    protected void onCreate(Bundle savedInstanceState) {
48        super.onCreate(savedInstanceState);
49    }
50
51    @Override
52    protected void onResume() {
53        super.onResume();
54
55        mDeviceID = getIntent().getIntExtra("device", 0);
56        mStorageID = getIntent().getIntExtra("storage", 0);
57        mObjectID = getIntent().getIntExtra("object", 0);
58        if (mDeviceID != 0 && mStorageID != 0) {
59            Cursor c;
60            if (mObjectID == 0) {
61                c = getContentResolver().query(
62                        Mtp.Object.getContentUriForStorageChildren(mDeviceID, mStorageID),
63                        OBJECT_COLUMNS, null, null, null);
64            } else {
65                c = getContentResolver().query(
66                        Mtp.Object.getContentUriForObjectChildren(mDeviceID, mObjectID),
67                        OBJECT_COLUMNS, null, null, null);
68            }
69            Log.d(TAG, "query returned " + c);
70            startManagingCursor(c);
71
72            // Map Cursor columns to views defined in simple_list_item_1.xml
73            mAdapter = new SimpleCursorAdapter(this,
74                    android.R.layout.simple_list_item_1, c,
75                            new String[] { Mtp.Object.NAME },
76                            new int[] { android.R.id.text1, android.R.id.text2 });
77            setListAdapter(mAdapter);
78        }
79    }
80
81    @Override
82    protected void onListItemClick(ListView l, View v, int position, long id) {
83        int rowID = (int)mAdapter.getItemId(position);
84        Cursor c = getContentResolver().query(
85                        Mtp.Object.getContentUri(mDeviceID, rowID),
86                        OBJECT_COLUMNS, null, null, null);
87        Log.d(TAG, "query returned " + c + " count: " + c.getCount());
88        long format = 0;
89        if (c != null && c.getCount() == 1) {
90            c.moveToFirst();
91            long rowId = c.getLong(0);
92            String name = c.getString(1);
93            format = c.getLong(2);
94            Log.d(TAG, "rowId: " + rowId + " name: " + name + " format: " + format);
95        }
96        if (format == Mtp.Object.FORMAT_JFIF) {
97            Intent intent = new Intent(this, ObjectViewer.class);
98            intent.putExtra("device", mDeviceID);
99            intent.putExtra("storage", mStorageID);
100            intent.putExtra("object",rowID);
101            startActivity(intent);
102        } else {
103            Intent intent = new Intent(this, ObjectBrowser.class);
104            intent.putExtra("device", mDeviceID);
105            intent.putExtra("storage", mStorageID);
106            intent.putExtra("object", rowID);
107            startActivity(intent);
108        }
109    }
110}
111