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/*
* Copyright (C) 2012 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.net;
import static android.net.NetworkPolicy.LIMIT_DISABLED;
import static android.net.wifi.WifiInfo.removeDoubleQuotes;
import static com.android.settings.DataUsageSummary.hasReadyMobileRadio;
import static com.android.settings.DataUsageSummary.hasWifiRadio;
import android.content.Context;
import android.net.NetworkPolicy;
import android.net.NetworkPolicyManager;
import android.net.NetworkTemplate;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.preference.CheckBoxPreference;
import android.preference.Preference;
import android.preference.PreferenceCategory;
import android.telephony.TelephonyManager;
import com.android.settings.R;
import com.android.settings.SettingsPreferenceFragment;
/**
* Panel to configure {@link NetworkPolicy#metered} for networks.
*/
public class DataUsageMeteredSettings extends SettingsPreferenceFragment {
private static final boolean SHOW_MOBILE_CATEGORY = false;
private NetworkPolicyManager mPolicyManager;
private WifiManager mWifiManager;
private NetworkPolicyEditor mPolicyEditor;
private PreferenceCategory mMobileCategory;
private PreferenceCategory mWifiCategory;
private Preference mWifiDisabled;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
final Context context = getActivity();
mPolicyManager = NetworkPolicyManager.from(context);
mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
mPolicyEditor = new NetworkPolicyEditor(mPolicyManager);
mPolicyEditor.read();
addPreferencesFromResource(R.xml.data_usage_metered_prefs);
mMobileCategory = (PreferenceCategory) findPreference("mobile");
mWifiCategory = (PreferenceCategory) findPreference("wifi");
mWifiDisabled = findPreference("wifi_disabled");
updateNetworks(context);
}
private void updateNetworks(Context context) {
if (SHOW_MOBILE_CATEGORY && hasReadyMobileRadio(context)) {
mMobileCategory.removeAll();
mMobileCategory.addPreference(buildMobilePref(context));
} else {
getPreferenceScreen().removePreference(mMobileCategory);
}
mWifiCategory.removeAll();
if (hasWifiRadio(context) && mWifiManager.isWifiEnabled()) {
for (WifiConfiguration config : mWifiManager.getConfiguredNetworks()) {
if (config.SSID != null) {
mWifiCategory.addPreference(buildWifiPref(context, config));
}
}
} else {
mWifiCategory.addPreference(mWifiDisabled);
}
}
private Preference buildMobilePref(Context context) {
final TelephonyManager tele = TelephonyManager.from(context);
final NetworkTemplate template = NetworkTemplate.buildTemplateMobileAll(
tele.getSubscriberId());
final MeteredPreference pref = new MeteredPreference(context, template);
pref.setTitle(tele.getNetworkOperatorName());
return pref;
}
private Preference buildWifiPref(Context context, WifiConfiguration config) {
final String networkId = removeDoubleQuotes(config.SSID);
final NetworkTemplate template = NetworkTemplate.buildTemplateWifi(networkId);
final MeteredPreference pref = new MeteredPreference(context, template);
pref.setTitle(networkId);
return pref;
}
private class MeteredPreference extends CheckBoxPreference {
private final NetworkTemplate mTemplate;
private boolean mBinding;
public MeteredPreference(Context context, NetworkTemplate template) {
super(context);
mTemplate = template;
setPersistent(false);
mBinding = true;
final NetworkPolicy policy = mPolicyEditor.getPolicy(template);
if (policy != null) {
if (policy.limitBytes != LIMIT_DISABLED) {
setChecked(true);
setEnabled(false);
} else {
setChecked(policy.metered);
}
} else {
setChecked(false);
}
mBinding = false;
}
@Override
protected void notifyChanged() {
super.notifyChanged();
if (!mBinding) {
mPolicyEditor.setPolicyMetered(mTemplate, isChecked());
}
}
}
}
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