1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/*
* 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.android.photos;
import android.app.Fragment;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.Context;
import android.content.Intent;
import android.content.Loader;
import android.database.Cursor;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.CursorAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import com.android.gallery3d.R;
import com.android.gallery3d.app.Gallery;
import com.android.photos.data.PhotoSetLoader;
import com.android.photos.shims.LoaderCompatShim;
import com.android.photos.shims.MediaItemsLoader;
import com.android.photos.views.GalleryThumbnailView.GalleryThumbnailAdapter;
public class PhotoSetFragment extends Fragment implements LoaderCallbacks<Cursor>,
OnItemClickListener {
private static final int LOADER_PHOTOSET = 1;
private GridView mPhotoSetView;
private View mEmptyView;
private ThumbnailAdapter mAdapter;
private boolean mInitialLoadComplete = false;
private LoaderCompatShim<Cursor> mLoaderCompatShim;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mAdapter = new ThumbnailAdapter(getActivity());
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View root = inflater.inflate(R.layout.photo_set, container, false);
mPhotoSetView = (GridView) root.findViewById(android.R.id.list);
// TODO: Remove once UI stabilizes
mPhotoSetView.setColumnWidth(MediaItemsLoader.getThumbnailSize());
mPhotoSetView.setOnItemClickListener(this);
mEmptyView = root.findViewById(android.R.id.empty);
mEmptyView.setVisibility(View.GONE);
mPhotoSetView.setAdapter(mAdapter);
getLoaderManager().initLoader(LOADER_PHOTOSET, null, this);
updateEmptyStatus();
return root;
}
private void updateEmptyStatus() {
boolean empty = (mAdapter == null || mAdapter.getCount() == 0);
mPhotoSetView.setVisibility(empty ? View.GONE : View.VISIBLE);
mEmptyView.setVisibility(empty && mInitialLoadComplete
? View.VISIBLE : View.GONE);
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
if (mLoaderCompatShim == null) {
// Not fully initialized yet, discard
return;
}
Cursor item = mAdapter.getItem(position);
Uri uri = mLoaderCompatShim.uriForItem(item);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
intent.setClass(getActivity(), Gallery.class);
startActivity(intent);
}
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
// TODO: Switch to PhotoSetLoader
MediaItemsLoader loader = new MediaItemsLoader(getActivity());
mAdapter.setDrawableFactory(loader);
mInitialLoadComplete = false;
mLoaderCompatShim = loader;
return loader;
}
@Override
public void onLoadFinished(Loader<Cursor> loader,
Cursor data) {
mAdapter.swapCursor(data);
mInitialLoadComplete = true;
updateEmptyStatus();
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
}
private static class ThumbnailAdapter extends CursorAdapter implements GalleryThumbnailAdapter {
private LayoutInflater mInflater;
private LoaderCompatShim<Cursor> mDrawableFactory;
public ThumbnailAdapter(Context context) {
super(context, null, false);
mInflater = LayoutInflater.from(context);
}
public void setDrawableFactory(LoaderCompatShim<Cursor> factory) {
mDrawableFactory = factory;
}
@Override
public void bindView(View view, Context context, Cursor cursor) {
ImageView iv = (ImageView) view;
Drawable recycle = iv.getDrawable();
Drawable drawable = mDrawableFactory.drawableForItem(cursor, recycle);
if (recycle != drawable) {
iv.setImageDrawable(drawable);
}
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
View view = mInflater.inflate(R.layout.photo_set_item, parent, false);
LayoutParams params = view.getLayoutParams();
int columnWidth = ((GridView) parent).getColumnWidth();
params.height = columnWidth;
view.setLayoutParams(params);
return view;
}
@Override
public float getIntrinsicAspectRatio(int position) {
Cursor cursor = getItem(position);
float width = cursor.getInt(PhotoSetLoader.INDEX_WIDTH);
float height = cursor.getInt(PhotoSetLoader.INDEX_HEIGHT);
return width / height;
}
@Override
public Cursor getItem(int position) {
return (Cursor) super.getItem(position);
}
}
}
|
