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
|
/*
* Copyright (C) 2015 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.settings.applications;
import android.app.AlertDialog;
import android.app.AppOpsManager;
import android.content.ActivityNotFoundException;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.os.UserHandle;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.Preference.OnPreferenceClickListener;
import android.preference.SwitchPreference;
import android.provider.Settings;
import android.util.Log;
import com.android.internal.logging.MetricsLogger;
import com.android.settings.InstrumentedFragment;
import com.android.settings.R;
import com.android.settings.applications.AppStateAppOpsBridge.PermissionState;
import com.android.settings.applications.AppStateOverlayBridge.OverlayState;
import com.android.settingslib.applications.ApplicationsState;
import com.android.settingslib.applications.ApplicationsState.AppEntry;
import java.util.List;
public class DrawOverlayDetails extends AppInfoWithHeader implements OnPreferenceChangeListener,
OnPreferenceClickListener {
private static final String KEY_APP_OPS_SETTINGS_SWITCH = "app_ops_settings_switch";
private static final String KEY_APP_OPS_SETTINGS_PREFS = "app_ops_settings_preference";
private static final String KEY_APP_OPS_SETTINGS_DESC = "app_ops_settings_description";
private static final String LOG_TAG = "DrawOverlayDetails";
private static final int [] APP_OPS_OP_CODE = {
AppOpsManager.OP_SYSTEM_ALERT_WINDOW
};
// Use a bridge to get the overlay details but don't initialize it to connect with all state.
// TODO: Break out this functionality into its own class.
private AppStateOverlayBridge mOverlayBridge;
private AppOpsManager mAppOpsManager;
private SwitchPreference mSwitchPref;
private Preference mOverlayPrefs;
private Preference mOverlayDesc;
private Intent mSettingsIntent;
private OverlayState mOverlayState;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Context context = getActivity();
mOverlayBridge = new AppStateOverlayBridge(context, mState, null);
mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
// find preferences
addPreferencesFromResource(R.xml.app_ops_permissions_details);
mSwitchPref = (SwitchPreference) findPreference(KEY_APP_OPS_SETTINGS_SWITCH);
mOverlayPrefs = findPreference(KEY_APP_OPS_SETTINGS_PREFS);
mOverlayDesc = findPreference(KEY_APP_OPS_SETTINGS_DESC);
// set title/summary for all of them
getPreferenceScreen().setTitle(R.string.draw_overlay);
mSwitchPref.setTitle(R.string.permit_draw_overlay);
mOverlayPrefs.setTitle(R.string.app_overlay_permission_preference);
mOverlayDesc.setSummary(R.string.allow_overlay_description);
// install event listeners
mSwitchPref.setOnPreferenceChangeListener(this);
mOverlayPrefs.setOnPreferenceClickListener(this);
mSettingsIntent = new Intent(Intent.ACTION_MAIN)
.setAction(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);
}
@Override
public boolean onPreferenceClick(Preference preference) {
if (preference == mOverlayPrefs) {
if (mSettingsIntent != null) {
try {
getActivity().startActivityAsUser(mSettingsIntent, new UserHandle(mUserId));
} catch (ActivityNotFoundException e) {
Log.w(LOG_TAG, "Unable to launch app draw overlay settings " + mSettingsIntent, e);
}
}
return true;
}
return false;
}
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
if (preference == mSwitchPref) {
if (mOverlayState != null && (Boolean) newValue != mOverlayState.isPermissible()) {
setCanDrawOverlay(!mOverlayState.isPermissible());
refreshUi();
}
return true;
}
return false;
}
private void setCanDrawOverlay(boolean newState) {
mAppOpsManager.setMode(AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
mPackageInfo.applicationInfo.uid, mPackageName, newState
? AppOpsManager.MODE_ALLOWED : AppOpsManager.MODE_ERRORED);
}
private boolean canDrawOverlay(String pkgName) {
int result = mAppOpsManager.noteOpNoThrow(AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
mPackageInfo.applicationInfo.uid, pkgName);
if (result == AppOpsManager.MODE_ALLOWED) {
return true;
}
return false;
}
@Override
protected boolean refreshUi() {
mOverlayState = mOverlayBridge.getOverlayInfo(mPackageName,
mPackageInfo.applicationInfo.uid);
boolean isAllowed = mOverlayState.isPermissible();
mSwitchPref.setChecked(isAllowed);
mOverlayPrefs.setEnabled(isAllowed);
getPreferenceScreen().removePreference(mOverlayPrefs);
return true;
}
@Override
protected AlertDialog createDialog(int id, int errorCode) {
return null;
}
@Override
protected int getMetricsCategory() {
return MetricsLogger.SYSTEM_ALERT_WINDOW_APPS;
}
public static CharSequence getSummary(Context context, AppEntry entry) {
if (entry.extraInfo != null) {
return getSummary(context, new OverlayState((PermissionState)entry.extraInfo));
}
// fallback if for whatever reason entry.extrainfo is null - the result
// may be less accurate
return getSummary(context, entry.info.packageName);
}
public static CharSequence getSummary(Context context, OverlayState overlayState) {
return context.getString(overlayState.isPermissible() ?
R.string.system_alert_window_on : R.string.system_alert_window_off);
}
public static CharSequence getSummary(Context context, String pkg) {
// first check if pkg is a system pkg
PackageManager packageManager = context.getPackageManager();
int uid = -1;
try {
ApplicationInfo appInfo = packageManager.getApplicationInfo(pkg, 0);
uid = appInfo.uid;
if ((appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
return context.getString(R.string.system_alert_window_on);
}
} catch (PackageManager.NameNotFoundException e) {
// pkg doesn't even exist?
Log.w(LOG_TAG, "Package " + pkg + " not found", e);
return context.getString(R.string.system_alert_window_off);
}
AppOpsManager appOpsManager = (AppOpsManager) context.getSystemService(Context
.APP_OPS_SERVICE);
if (uid == -1) {
return context.getString(R.string.system_alert_window_off);
}
int mode = appOpsManager.noteOpNoThrow(AppOpsManager.OP_SYSTEM_ALERT_WINDOW, uid, pkg);
return context.getString((mode == AppOpsManager.MODE_ALLOWED) ?
R.string.system_alert_window_on : R.string.system_alert_window_off);
}
}
|
