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
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
/*
* Copyright (C) 2008 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.bluetooth;
import android.app.AlertDialog;
import android.bluetooth.BluetoothDevice;
import android.content.Context;
import android.content.DialogInterface;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.os.UserManager;
import android.support.v7.preference.Preference;
import android.support.v7.preference.PreferenceViewHolder;
import android.text.Html;
import android.text.TextUtils;
import android.util.Pair;
import android.util.TypedValue;
import android.widget.ImageView;
import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
import com.android.settings.R;
import com.android.settings.overlay.FeatureFactory;
import com.android.settings.widget.GearPreference;
import com.android.settingslib.bluetooth.CachedBluetoothDevice;
import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
import static android.os.UserManager.DISALLOW_CONFIG_BLUETOOTH;
/**
* BluetoothDevicePreference is the preference type used to display each remote
* Bluetooth device in the Bluetooth Settings screen.
*/
public final class BluetoothDevicePreference extends GearPreference implements
CachedBluetoothDevice.Callback {
private static final String TAG = "BluetoothDevicePref";
private static int sDimAlpha = Integer.MIN_VALUE;
private final CachedBluetoothDevice mCachedDevice;
private final UserManager mUserManager;
private final boolean mShowDevicesWithoutNames;
private AlertDialog mDisconnectDialog;
private String contentDescription = null;
/* Talk-back descriptions for various BT icons */
Resources mResources;
public BluetoothDevicePreference(Context context, CachedBluetoothDevice cachedDevice,
boolean showDeviceWithoutNames) {
super(context, null);
mResources = getContext().getResources();
mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
mShowDevicesWithoutNames = showDeviceWithoutNames;
if (sDimAlpha == Integer.MIN_VALUE) {
TypedValue outValue = new TypedValue();
context.getTheme().resolveAttribute(android.R.attr.disabledAlpha, outValue, true);
sDimAlpha = (int) (outValue.getFloat() * 255);
}
mCachedDevice = cachedDevice;
mCachedDevice.registerCallback(this);
onDeviceAttributesChanged();
}
void rebind() {
notifyChanged();
}
@Override
protected boolean shouldHideSecondTarget() {
return mCachedDevice == null
|| mCachedDevice.getBondState() != BluetoothDevice.BOND_BONDED
|| mUserManager.hasUserRestriction(DISALLOW_CONFIG_BLUETOOTH);
}
@Override
protected int getSecondTargetResId() {
return R.layout.preference_widget_gear;
}
CachedBluetoothDevice getCachedDevice() {
return mCachedDevice;
}
@Override
protected void onPrepareForRemoval() {
super.onPrepareForRemoval();
mCachedDevice.unregisterCallback(this);
if (mDisconnectDialog != null) {
mDisconnectDialog.dismiss();
mDisconnectDialog = null;
}
}
public CachedBluetoothDevice getBluetoothDevice() {
return mCachedDevice;
}
public void onDeviceAttributesChanged() {
/*
* The preference framework takes care of making sure the value has
* changed before proceeding. It will also call notifyChanged() if
* any preference info has changed from the previous value.
*/
setTitle(mCachedDevice.getName());
// Null check is done at the framework
setSummary(mCachedDevice.getConnectionSummary());
final Pair<Drawable, String> pair = com.android.settingslib.bluetooth.Utils
.getBtClassDrawableWithDescription(getContext(), mCachedDevice);
if (pair.first != null) {
setIcon(pair.first);
contentDescription = pair.second;
}
// Used to gray out the item
setEnabled(!mCachedDevice.isBusy());
// Device is only visible in the UI if it has a valid name besides MAC address or when user
// allows showing devices without user-friendly name in developer settings
setVisible(mShowDevicesWithoutNames || mCachedDevice.hasHumanReadableName());
// This could affect ordering, so notify that
notifyHierarchyChanged();
}
@Override
public void onBindViewHolder(PreferenceViewHolder view) {
// Disable this view if the bluetooth enable/disable preference view is off
if (null != findPreferenceInHierarchy("bt_checkbox")) {
setDependency("bt_checkbox");
}
if (mCachedDevice.getBondState() == BluetoothDevice.BOND_BONDED) {
ImageView deviceDetails = (ImageView) view.findViewById(R.id.settings_button);
if (deviceDetails != null) {
deviceDetails.setOnClickListener(this);
}
}
final ImageView imageView = (ImageView) view.findViewById(android.R.id.icon);
if (imageView != null) {
imageView.setContentDescription(contentDescription);
}
super.onBindViewHolder(view);
}
@Override
public boolean equals(Object o) {
if ((o == null) || !(o instanceof BluetoothDevicePreference)) {
return false;
}
return mCachedDevice.equals(
((BluetoothDevicePreference) o).mCachedDevice);
}
@Override
public int hashCode() {
return mCachedDevice.hashCode();
}
@Override
public int compareTo(Preference another) {
if (!(another instanceof BluetoothDevicePreference)) {
// Rely on default sort
return super.compareTo(another);
}
return mCachedDevice
.compareTo(((BluetoothDevicePreference) another).mCachedDevice);
}
void onClicked() {
Context context = getContext();
int bondState = mCachedDevice.getBondState();
final MetricsFeatureProvider metricsFeatureProvider =
FeatureFactory.getFactory(context).getMetricsFeatureProvider();
if (mCachedDevice.isConnected()) {
metricsFeatureProvider.action(context,
MetricsEvent.ACTION_SETTINGS_BLUETOOTH_DISCONNECT);
askDisconnect();
} else if (bondState == BluetoothDevice.BOND_BONDED) {
metricsFeatureProvider.action(context,
MetricsEvent.ACTION_SETTINGS_BLUETOOTH_CONNECT);
mCachedDevice.connect(true);
} else if (bondState == BluetoothDevice.BOND_NONE) {
metricsFeatureProvider.action(context,
MetricsEvent.ACTION_SETTINGS_BLUETOOTH_PAIR);
if (!mCachedDevice.hasHumanReadableName()) {
metricsFeatureProvider.action(context,
MetricsEvent.ACTION_SETTINGS_BLUETOOTH_PAIR_DEVICES_WITHOUT_NAMES);
}
pair();
}
}
// Show disconnect confirmation dialog for a device.
private void askDisconnect() {
Context context = getContext();
String name = mCachedDevice.getName();
if (TextUtils.isEmpty(name)) {
name = context.getString(R.string.bluetooth_device);
}
String message = context.getString(R.string.bluetooth_disconnect_all_profiles, name);
String title = context.getString(R.string.bluetooth_disconnect_title);
DialogInterface.OnClickListener disconnectListener = new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
mCachedDevice.disconnect();
}
};
mDisconnectDialog = Utils.showDisconnectDialog(context,
mDisconnectDialog, disconnectListener, title, Html.fromHtml(message));
}
private void pair() {
if (!mCachedDevice.startPairing()) {
Utils.showError(getContext(), mCachedDevice.getName(),
R.string.bluetooth_pairing_error_message);
}
}
}
|
