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
|
/*
* 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;
import android.os.Bundle;
import android.os.SystemProperties;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceScreen;
import android.preference.CheckBoxPreference;
import android.provider.Settings;
import android.util.Log;
import java.util.ArrayList;
/*
* Displays preferences for Tethering.
*/
public class TetherSettings extends PreferenceActivity {
private static final String ENABLE_TETHER_NOTICE = "enable_tether_notice";
private static final String USB_TETHER_SETTINGS = "usb_tether_settings";
private CheckBoxPreference mEnableTetherNotice;
private PreferenceScreen mUsbTether;
private BroadcastReceiver mTetherChangeReceiver;
private String[] mUsbRegexs;
private ArrayList mUsbIfaces;
private String[] mWifiRegexs;
private ArrayList mWifiIfaces;
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
addPreferencesFromResource(R.xml.tether_prefs);
mEnableTetherNotice = (CheckBoxPreference) findPreference(ENABLE_TETHER_NOTICE);
mUsbTether = (PreferenceScreen) findPreference(USB_TETHER_SETTINGS);
ConnectivityManager cm =
(ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
mUsbRegexs = cm.getTetherableUsbRegexs();
if (mUsbRegexs.length == 0) {
getPreferenceScreen().removePreference(mUsbTether);
getPreferenceScreen().removePreference(mEnableTetherNotice);
}
mWifiRegexs = cm.getTetherableWifiRegexs();
}
private class TetherChangeReceiver extends BroadcastReceiver {
public void onReceive(Context content, Intent intent) {
// TODO - this should understand the interface types
ArrayList<String> available = intent.getStringArrayListExtra(
ConnectivityManager.EXTRA_AVAILABLE_TETHER);
ArrayList<String> active = intent.getStringArrayListExtra(
ConnectivityManager.EXTRA_ACTIVE_TETHER);
updateState(available, active);
}
}
@Override
protected void onResume() {
super.onResume();
mEnableTetherNotice.setChecked(Settings.Secure.getInt(getContentResolver(),
Settings.Secure.TETHER_NOTIFY, 0) != 0);
IntentFilter filter = new IntentFilter(ConnectivityManager.ACTION_TETHER_STATE_CHANGED);
mTetherChangeReceiver = new TetherChangeReceiver();
Intent intent = registerReceiver(mTetherChangeReceiver, filter);
if (intent != null) mTetherChangeReceiver.onReceive(this, intent);
}
@Override
protected void onPause() {
super.onPause();
unregisterReceiver(mTetherChangeReceiver);
mTetherChangeReceiver = null;
}
private void updateState(ArrayList<String> available, ArrayList<String> tethered) {
boolean usbTethered = false;
boolean usbAvailable = false;
boolean wifiTethered = false;
boolean wifiAvailable = false;
for (String s : available) {
for (String regex : mUsbRegexs) {
if (s.matches(regex)) usbAvailable = true;
}
for (String regex : mWifiRegexs) {
if (s.matches(regex)) wifiAvailable = true;
}
}
for (String s : tethered) {
for (String regex : mUsbRegexs) {
if (s.matches(regex)) usbTethered = true;
}
for (String regex : mWifiRegexs) {
if (s.matches(regex)) wifiTethered = true;
}
}
if (usbTethered) {
mUsbTether.setSummary(R.string.usb_tethering_active_subtext);
mUsbTether.setEnabled(true);
} else if (usbAvailable) {
mUsbTether.setSummary(R.string.usb_tethering_available_subtext);
mUsbTether.setEnabled(true);
} else {
mUsbTether.setSummary(R.string.usb_tethering_unavailable_subtext);
mUsbTether.setEnabled(false);
}
}
@Override
public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
if (preference == mEnableTetherNotice) {
boolean newState = mEnableTetherNotice.isChecked();
Settings.Secure.putInt(getContentResolver(),
Settings.Secure.TETHER_NOTIFY, newState ? 1 : 0);
return true;
}
return false;
}
}
|
