| /* |
| * Copyright (C) 2019 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.telephony; |
| |
| import android.app.AlertDialog; |
| import android.app.Dialog; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.os.Looper; |
| import android.os.PersistableBundle; |
| import android.telephony.CarrierConfigManager; |
| import android.telephony.PhoneStateListener; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.TelephonyManager; |
| import android.telephony.ims.ImsMmTelManager; |
| import android.util.Log; |
| |
| import androidx.annotation.VisibleForTesting; |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceScreen; |
| import androidx.preference.SwitchPreference; |
| |
| import com.android.settings.R; |
| import com.android.settings.network.ims.VolteQueryImsState; |
| import com.android.settingslib.core.lifecycle.LifecycleObserver; |
| import com.android.settingslib.core.lifecycle.events.OnStart; |
| import com.android.settingslib.core.lifecycle.events.OnStop; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Preference controller for "Enhanced 4G LTE" |
| */ |
| public class Enhanced4gBasePreferenceController extends TelephonyTogglePreferenceController |
| implements LifecycleObserver, OnStart, OnStop { |
| |
| private static final String TAG = "Enhanced4g"; |
| |
| @VisibleForTesting |
| Preference mPreference; |
| private PhoneCallStateListener mPhoneStateListener; |
| private boolean mShow5gLimitedDialog; |
| boolean mIsNrEnabledFromCarrierConfig; |
| private boolean mHas5gCapability; |
| private Integer mCallState; |
| private final List<On4gLteUpdateListener> m4gLteListeners; |
| |
| protected static final int MODE_NONE = -1; |
| protected static final int MODE_VOLTE = 0; |
| protected static final int MODE_ADVANCED_CALL = 1; |
| protected static final int MODE_4G_CALLING = 2; |
| private int m4gCurrentMode = MODE_NONE; |
| |
| public Enhanced4gBasePreferenceController(Context context, String key) { |
| super(context, key); |
| m4gLteListeners = new ArrayList<>(); |
| } |
| |
| public Enhanced4gBasePreferenceController init(int subId) { |
| if (mPhoneStateListener == null) { |
| mPhoneStateListener = new PhoneCallStateListener(); |
| } |
| |
| if (mSubId == subId) { |
| return this; |
| } |
| mSubId = subId; |
| final PersistableBundle carrierConfig = getCarrierConfigForSubId(subId); |
| if (carrierConfig == null) { |
| return this; |
| } |
| |
| final boolean show4GForLTE = carrierConfig.getBoolean( |
| CarrierConfigManager.KEY_SHOW_4G_FOR_LTE_DATA_ICON_BOOL); |
| m4gCurrentMode = carrierConfig.getInt( |
| CarrierConfigManager.KEY_ENHANCED_4G_LTE_TITLE_VARIANT_INT); |
| if (m4gCurrentMode != MODE_ADVANCED_CALL) { |
| m4gCurrentMode = show4GForLTE ? MODE_4G_CALLING : MODE_VOLTE; |
| } |
| |
| mShow5gLimitedDialog = carrierConfig.getBoolean( |
| CarrierConfigManager.KEY_VOLTE_5G_LIMITED_ALERT_DIALOG_BOOL); |
| mIsNrEnabledFromCarrierConfig = carrierConfig.getInt( |
| CarrierConfigManager.KEY_CARRIER_NR_AVAILABILITY_INT) |
| != CarrierConfigManager.CARRIER_NR_AVAILABILITY_NONE; |
| return this; |
| } |
| |
| @Override |
| public int getAvailabilityStatus(int subId) { |
| init(subId); |
| if (!isModeMatched()) { |
| return CONDITIONALLY_UNAVAILABLE; |
| } |
| final PersistableBundle carrierConfig = getCarrierConfigForSubId(subId); |
| if ((carrierConfig == null) |
| || carrierConfig.getBoolean(CarrierConfigManager.KEY_HIDE_ENHANCED_4G_LTE_BOOL)) { |
| return CONDITIONALLY_UNAVAILABLE; |
| } |
| final VolteQueryImsState queryState = queryImsState(subId); |
| if (!queryState.isReadyToVoLte()) { |
| return CONDITIONALLY_UNAVAILABLE; |
| } |
| return (isUserControlAllowed(carrierConfig) && queryState.isAllowUserControl()) |
| ? AVAILABLE : AVAILABLE_UNSEARCHABLE; |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| super.displayPreference(screen); |
| mPreference = screen.findPreference(getPreferenceKey()); |
| } |
| |
| @Override |
| public void onStart() { |
| if (!isModeMatched() || (mPhoneStateListener == null)) { |
| return; |
| } |
| mPhoneStateListener.register(mContext, mSubId); |
| } |
| |
| @Override |
| public void onStop() { |
| if (mPhoneStateListener == null) { |
| return; |
| } |
| mPhoneStateListener.unregister(); |
| } |
| |
| @Override |
| public void updateState(Preference preference) { |
| super.updateState(preference); |
| if (preference == null) { |
| return; |
| } |
| final SwitchPreference switchPreference = (SwitchPreference) preference; |
| |
| final VolteQueryImsState queryState = queryImsState(mSubId); |
| switchPreference.setEnabled(isUserControlAllowed(getCarrierConfigForSubId(mSubId)) |
| && queryState.isAllowUserControl()); |
| switchPreference.setChecked(queryState.isEnabledByUser() |
| && queryState.isAllowUserControl()); |
| } |
| |
| @Override |
| public boolean setChecked(boolean isChecked) { |
| if (!SubscriptionManager.isValidSubscriptionId(mSubId)) { |
| return false; |
| } |
| final ImsMmTelManager imsMmTelManager = ImsMmTelManager.createForSubscriptionId(mSubId); |
| if (imsMmTelManager == null) { |
| return false; |
| } |
| |
| if (isDialogNeeded() && !isChecked) { |
| show5gLimitedDialog(imsMmTelManager); |
| } else { |
| return setAdvancedCallingSettingEnabled(imsMmTelManager, isChecked); |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean isChecked() { |
| final VolteQueryImsState queryState = queryImsState(mSubId); |
| return queryState.isEnabledByUser(); |
| } |
| |
| public Enhanced4gBasePreferenceController addListener(On4gLteUpdateListener lsn) { |
| m4gLteListeners.add(lsn); |
| return this; |
| } |
| |
| protected int getMode() { |
| return MODE_NONE; |
| } |
| |
| private boolean isModeMatched() { |
| return m4gCurrentMode == getMode(); |
| } |
| |
| @VisibleForTesting |
| VolteQueryImsState queryImsState(int subId) { |
| return new VolteQueryImsState(mContext, subId); |
| } |
| |
| @VisibleForTesting |
| boolean isCallStateIdle() { |
| return (mCallState != null) && (mCallState == TelephonyManager.CALL_STATE_IDLE); |
| } |
| |
| private boolean isUserControlAllowed(final PersistableBundle carrierConfig) { |
| return isCallStateIdle() |
| && (carrierConfig != null) |
| && carrierConfig.getBoolean( |
| CarrierConfigManager.KEY_EDITABLE_ENHANCED_4G_LTE_BOOL); |
| } |
| |
| private class PhoneCallStateListener extends PhoneStateListener { |
| |
| PhoneCallStateListener() { |
| super(Looper.getMainLooper()); |
| } |
| |
| private TelephonyManager mTelephonyManager; |
| |
| @Override |
| public void onCallStateChanged(int state, String incomingNumber) { |
| mCallState = state; |
| updateState(mPreference); |
| } |
| |
| public void register(Context context, int subId) { |
| mTelephonyManager = context.getSystemService(TelephonyManager.class); |
| if (SubscriptionManager.isValidSubscriptionId(subId)) { |
| mTelephonyManager = mTelephonyManager.createForSubscriptionId(subId); |
| } |
| // assign current call state so that it helps to show correct preference state even |
| // before first onCallStateChanged() by initial registration. |
| mCallState = mTelephonyManager.getCallState(subId); |
| mTelephonyManager.listen(this, PhoneStateListener.LISTEN_CALL_STATE); |
| |
| final long supportedRadioBitmask = mTelephonyManager.getSupportedRadioAccessFamily(); |
| mHas5gCapability = |
| (supportedRadioBitmask & TelephonyManager.NETWORK_TYPE_BITMASK_NR) > 0; |
| } |
| |
| public void unregister() { |
| mCallState = null; |
| if (mTelephonyManager != null) { |
| mTelephonyManager.listen(this, PhoneStateListener.LISTEN_NONE); |
| } |
| } |
| } |
| |
| /** |
| * Update other preferences when 4gLte state is changed |
| */ |
| public interface On4gLteUpdateListener { |
| void on4gLteUpdated(); |
| } |
| |
| private boolean isDialogNeeded() { |
| Log.d(TAG, "Has5gCapability:" + mHas5gCapability); |
| return mShow5gLimitedDialog && mHas5gCapability && mIsNrEnabledFromCarrierConfig; |
| } |
| |
| private void show5gLimitedDialog(ImsMmTelManager imsMmTelManager) { |
| Log.d(TAG, "show5gLimitedDialog"); |
| AlertDialog.Builder builder = new AlertDialog.Builder(mContext); |
| DialogInterface.OnClickListener networkSettingsClickListener = |
| new Dialog.OnClickListener() { |
| @Override |
| public void onClick(DialogInterface dialog, int which) { |
| Log.d(TAG, "onClick,isChecked:false"); |
| setAdvancedCallingSettingEnabled(imsMmTelManager, false); |
| updateState(mPreference); |
| } |
| }; |
| builder.setTitle(R.string.volte_5G_limited_title) |
| .setMessage(R.string.volte_5G_limited_text) |
| .setNeutralButton(mContext.getResources().getString( |
| R.string.cancel), null) |
| .setPositiveButton(mContext.getResources().getString( |
| R.string.condition_turn_off), |
| networkSettingsClickListener) |
| .create() |
| .show(); |
| } |
| |
| private boolean setAdvancedCallingSettingEnabled(ImsMmTelManager imsMmTelManager, |
| boolean isChecked) { |
| try { |
| imsMmTelManager.setAdvancedCallingSettingEnabled(isChecked); |
| } catch (IllegalArgumentException exception) { |
| Log.w(TAG, "fail to set VoLTE=" + isChecked + ". subId=" + mSubId, exception); |
| return false; |
| } |
| for (final On4gLteUpdateListener lsn : m4gLteListeners) { |
| lsn.on4gLteUpdated(); |
| } |
| return true; |
| } |
| } |