1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.network.telephony.cdma; 18 19 import android.content.Context; 20 import android.os.SystemProperties; 21 import android.provider.Settings; 22 import android.telephony.TelephonyManager; 23 import android.text.TextUtils; 24 25 import androidx.annotation.VisibleForTesting; 26 import androidx.preference.ListPreference; 27 import androidx.preference.Preference; 28 29 import com.android.settings.network.telephony.MobileNetworkUtils; 30 31 /** 32 * Preference controller for "CDMA subscription" 33 */ 34 public class CdmaSubscriptionPreferenceController extends CdmaBasePreferenceController 35 implements ListPreference.OnPreferenceChangeListener { 36 private static final String TYPE_NV = "NV"; 37 private static final String TYPE_RUIM = "RUIM"; 38 39 @VisibleForTesting 40 ListPreference mPreference; 41 CdmaSubscriptionPreferenceController(Context context, String key)42 public CdmaSubscriptionPreferenceController(Context context, String key) { 43 super(context, key); 44 } 45 46 @Override getAvailabilityStatus(int subId)47 public int getAvailabilityStatus(int subId) { 48 return MobileNetworkUtils.isCdmaOptions(mContext, subId) && deviceSupportsNvAndRuim() 49 ? AVAILABLE 50 : CONDITIONALLY_UNAVAILABLE; 51 } 52 53 @Override updateState(Preference preference)54 public void updateState(Preference preference) { 55 super.updateState(preference); 56 final ListPreference listPreference = (ListPreference) preference; 57 listPreference.setVisible(getAvailabilityStatus() == AVAILABLE); 58 final int mode = Settings.Global.getInt(mContext.getContentResolver(), 59 Settings.Global.CDMA_SUBSCRIPTION_MODE, 60 TelephonyManager.CDMA_SUBSCRIPTION_RUIM_SIM); 61 if (mode != TelephonyManager.CDMA_SUBSCRIPTION_UNKNOWN) { 62 listPreference.setValue(Integer.toString(mode)); 63 } 64 } 65 66 @Override onPreferenceChange(Preference preference, Object object)67 public boolean onPreferenceChange(Preference preference, Object object) { 68 final int newMode = Integer.parseInt((String) object); 69 //TODO(b/117611981): only set it in one place 70 try { 71 mTelephonyManager.setCdmaSubscriptionMode(newMode); 72 Settings.Global.putInt(mContext.getContentResolver(), 73 Settings.Global.CDMA_SUBSCRIPTION_MODE, newMode); 74 return true; 75 } catch (IllegalStateException e) { 76 return false; 77 } 78 } 79 80 @VisibleForTesting deviceSupportsNvAndRuim()81 boolean deviceSupportsNvAndRuim() { 82 // retrieve the list of subscription types supported by device. 83 final String subscriptionsSupported = getRilSubscriptionTypes(); 84 boolean nvSupported = false; 85 boolean ruimSupported = false; 86 87 if (!TextUtils.isEmpty(subscriptionsSupported)) { 88 // Searches through the comma-separated list for a match for "NV" 89 // and "RUIM" to update nvSupported and ruimSupported. 90 for (String subscriptionType : subscriptionsSupported.split(",")) { 91 subscriptionType = subscriptionType.trim(); 92 if (subscriptionType.equalsIgnoreCase(TYPE_NV)) { 93 nvSupported = true; 94 } else if (subscriptionType.equalsIgnoreCase(TYPE_RUIM)) { 95 ruimSupported = true; 96 } 97 } 98 } 99 100 return (nvSupported && ruimSupported); 101 } 102 103 @VisibleForTesting getRilSubscriptionTypes()104 protected String getRilSubscriptionTypes() { 105 return SystemProperties.get("ril.subscription.types"); 106 } 107 } 108