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
|
/*
* Copyright (C) 2017 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.network;
import android.app.settings.SettingsEnums;
import android.content.Context;
import android.net.NetworkScoreManager;
import android.net.NetworkScorerAppData;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import androidx.annotation.VisibleForTesting;
import androidx.preference.Preference;
import androidx.preference.PreferenceScreen;
import com.android.settings.R;
import com.android.settings.core.InstrumentedPreferenceFragment;
import com.android.settings.search.BaseSearchIndexProvider;
import com.android.settingslib.search.SearchIndexable;
import com.android.settingslib.widget.RadioButtonPreference;
import java.util.List;
/**
* Fragment for choosing default network scorer.
*/
@SearchIndexable
public class NetworkScorerPicker extends InstrumentedPreferenceFragment implements
RadioButtonPreference.OnClickListener {
private NetworkScoreManager mNetworkScoreManager;
@Override
public int getMetricsCategory() {
return SettingsEnums.SETTINGS_NETWORK_SCORER;
}
@Override
public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
super.onCreatePreferences(savedInstanceState, rootKey);
updateCandidates();
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
mNetworkScoreManager = createNetworkScorerManager(context);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View view = super.onCreateView(inflater, container, savedInstanceState);
// this is needed so the back button goes back to previous fragment
setHasOptionsMenu(true);
return view;
}
@Override
protected int getPreferenceScreenResId() {
return R.xml.network_scorer_picker_prefs;
}
@VisibleForTesting
public void updateCandidates() {
final PreferenceScreen screen = getPreferenceScreen();
screen.removeAll();
final List<NetworkScorerAppData> scorers = mNetworkScoreManager.getAllValidScorers();
final String defaultAppKey = getActiveScorerPackage();
final RadioButtonPreference nonePref = new RadioButtonPreference(getPrefContext());
nonePref.setTitle(R.string.network_scorer_picker_none_preference);
if (scorers.isEmpty()) {
nonePref.setChecked(true);
} else {
nonePref.setKey(null);
nonePref.setChecked(TextUtils.isEmpty(defaultAppKey));
nonePref.setOnClickListener(this);
}
screen.addPreference(nonePref);
final int numScorers = scorers.size();
for (int i = 0; i < numScorers; i++) {
final RadioButtonPreference pref = new RadioButtonPreference(getPrefContext());
final NetworkScorerAppData appData = scorers.get(i);
final String appKey = appData.getRecommendationServicePackageName();
pref.setTitle(appData.getRecommendationServiceLabel());
pref.setKey(appKey);
pref.setChecked(TextUtils.equals(defaultAppKey, appKey));
pref.setOnClickListener(this);
screen.addPreference(pref);
}
}
private String getActiveScorerPackage() {
return mNetworkScoreManager.getActiveScorerPackage();
}
private boolean setActiveScorer(String key) {
if (!TextUtils.equals(key, getActiveScorerPackage())) {
return mNetworkScoreManager.setActiveScorer(key);
}
return false;
}
@Override
public void onRadioButtonClicked(RadioButtonPreference selected) {
final String selectedKey = selected.getKey();
final boolean success = setActiveScorer(selectedKey);
if (success) {
updateCheckedState(selectedKey);
}
}
private void updateCheckedState(String selectedKey) {
final PreferenceScreen screen = getPreferenceScreen();
final int count = screen.getPreferenceCount();
for (int i = 0; i < count; i++) {
final Preference pref = screen.getPreference(i);
if (pref instanceof RadioButtonPreference) {
final RadioButtonPreference radioPref = (RadioButtonPreference) pref;
radioPref.setChecked(TextUtils.equals(pref.getKey(), selectedKey));
}
}
}
@VisibleForTesting
NetworkScoreManager createNetworkScorerManager(Context context) {
return (NetworkScoreManager) context.getSystemService(Context.NETWORK_SCORE_SERVICE);
}
public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
new BaseSearchIndexProvider(R.xml.network_scorer_picker_prefs);
}
|
