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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
/*
* Copyright (C) 2009 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.launcher3;
import android.app.Activity;
import android.appwidget.AppWidgetHost;
import android.appwidget.AppWidgetHostView;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProviderInfo;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.os.Handler;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.widget.Toast;
import com.android.launcher3.config.FeatureFlags;
import java.util.ArrayList;
/**
* Specific {@link AppWidgetHost} that creates our {@link LauncherAppWidgetHostView}
* which correctly captures all long-press events. This ensures that users can
* always pick up and move widgets.
*/
public class LauncherAppWidgetHost extends AppWidgetHost {
public static final int APPWIDGET_HOST_ID = 1024;
private final ArrayList<ProviderChangedListener> mProviderChangeListeners = new ArrayList<>();
private final SparseArray<LauncherAppWidgetHostView> mViews = new SparseArray<>();
private final Context mContext;
public LauncherAppWidgetHost(Context context) {
super(context, APPWIDGET_HOST_ID);
mContext = context;
}
@Override
protected LauncherAppWidgetHostView onCreateView(Context context, int appWidgetId,
AppWidgetProviderInfo appWidget) {
LauncherAppWidgetHostView view = new LauncherAppWidgetHostView(context);
mViews.put(appWidgetId, view);
return view;
}
@Override
public void startListening() {
if (FeatureFlags.GO_DISABLE_WIDGETS) {
return;
}
try {
super.startListening();
} catch (Exception e) {
if (!Utilities.isBinderSizeError(e)) {
throw new RuntimeException(e);
}
// We're willing to let this slide. The exception is being caused by the list of
// RemoteViews which is being passed back. The startListening relationship will
// have been established by this point, and we will end up populating the
// widgets upon bind anyway. See issue 14255011 for more context.
}
}
@Override
public void stopListening() {
if (FeatureFlags.GO_DISABLE_WIDGETS) {
return;
}
super.stopListening();
}
@Override
public int allocateAppWidgetId() {
if (FeatureFlags.GO_DISABLE_WIDGETS) {
return AppWidgetManager.INVALID_APPWIDGET_ID;
}
return super.allocateAppWidgetId();
}
public void addProviderChangeListener(ProviderChangedListener callback) {
mProviderChangeListeners.add(callback);
}
public void removeProviderChangeListener(ProviderChangedListener callback) {
mProviderChangeListeners.remove(callback);
}
protected void onProvidersChanged() {
if (!mProviderChangeListeners.isEmpty()) {
for (ProviderChangedListener callback : new ArrayList<>(mProviderChangeListeners)) {
callback.notifyWidgetProvidersChanged();
}
}
}
public AppWidgetHostView createView(Context context, int appWidgetId,
LauncherAppWidgetProviderInfo appWidget) {
if (appWidget.isCustomWidget) {
LauncherAppWidgetHostView lahv = new LauncherAppWidgetHostView(context);
LayoutInflater inflater = (LayoutInflater)
context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater.inflate(appWidget.initialLayout, lahv);
lahv.setAppWidget(0, appWidget);
lahv.updateLastInflationOrientation();
return lahv;
} else {
try {
return super.createView(context, appWidgetId, appWidget);
} catch (Exception e) {
if (!Utilities.isBinderSizeError(e)) {
throw new RuntimeException(e);
}
// If the exception was thrown while fetching the remote views, let the view stay.
// This will ensure that if the widget posts a valid update later, the view
// will update.
LauncherAppWidgetHostView view = mViews.get(appWidgetId);
if (view == null) {
view = onCreateView(mContext, appWidgetId, appWidget);
}
view.setAppWidget(appWidgetId, appWidget);
view.switchToErrorView();
return view;
}
}
}
/**
* Called when the AppWidget provider for a AppWidget has been upgraded to a new apk.
*/
@Override
protected void onProviderChanged(int appWidgetId, AppWidgetProviderInfo appWidget) {
LauncherAppWidgetProviderInfo info = LauncherAppWidgetProviderInfo.fromProviderInfo(
mContext, appWidget);
super.onProviderChanged(appWidgetId, info);
// The super method updates the dimensions of the providerInfo. Update the
// launcher spans accordingly.
info.initSpans(mContext);
}
@Override
public void deleteAppWidgetId(int appWidgetId) {
super.deleteAppWidgetId(appWidgetId);
mViews.remove(appWidgetId);
}
@Override
protected void clearViews() {
super.clearViews();
mViews.clear();
}
public void startBindFlow(BaseActivity activity,
int appWidgetId, AppWidgetProviderInfo info, int requestCode) {
if (FeatureFlags.GO_DISABLE_WIDGETS) {
sendActionCancelled(activity, requestCode);
return;
}
Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_BIND)
.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId)
.putExtra(AppWidgetManager.EXTRA_APPWIDGET_PROVIDER, info.provider)
.putExtra(AppWidgetManager.EXTRA_APPWIDGET_PROVIDER_PROFILE, info.getProfile());
// TODO: we need to make sure that this accounts for the options bundle.
// intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_OPTIONS, options);
activity.startActivityForResult(intent, requestCode);
}
public void startConfigActivity(BaseActivity activity, int widgetId, int requestCode) {
if (FeatureFlags.GO_DISABLE_WIDGETS) {
sendActionCancelled(activity, requestCode);
return;
}
try {
startAppWidgetConfigureActivityForResult(activity, widgetId, 0, requestCode, null);
} catch (ActivityNotFoundException | SecurityException e) {
Toast.makeText(activity, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
sendActionCancelled(activity, requestCode);
}
}
private void sendActionCancelled(final BaseActivity activity, final int requestCode) {
new Handler().post(new Runnable() {
@Override
public void run() {
activity.onActivityResult(requestCode, Activity.RESULT_CANCELED, null);
}
});
}
/**
* Listener for getting notifications on provider changes.
*/
public interface ProviderChangedListener {
void notifyWidgetProvidersChanged();
}
}
|
