| /* |
| * Copyright (C) 2018 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.Activity; |
| import android.app.settings.SettingsEnums; |
| import android.content.Context; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.os.PersistableBundle; |
| import android.provider.Settings; |
| import android.telephony.AccessNetworkConstants; |
| import android.telephony.CarrierConfigManager; |
| import android.telephony.CellIdentity; |
| import android.telephony.CellInfo; |
| import android.telephony.NetworkRegistrationInfo; |
| import android.telephony.ServiceState; |
| import android.telephony.SignalStrength; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.TelephonyManager; |
| import android.util.Log; |
| import android.view.View; |
| |
| import androidx.annotation.VisibleForTesting; |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceCategory; |
| |
| import com.android.internal.telephony.OperatorInfo; |
| import com.android.settings.R; |
| import com.android.settings.dashboard.DashboardFragment; |
| import com.android.settings.overlay.FeatureFactory; |
| import com.android.settingslib.core.instrumentation.MetricsFeatureProvider; |
| import com.android.settingslib.utils.ThreadUtils; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| |
| /** |
| * "Choose network" settings UI for the Settings app. |
| */ |
| public class NetworkSelectSettings extends DashboardFragment { |
| |
| private static final String TAG = "NetworkSelectSettings"; |
| |
| private static final int EVENT_SET_NETWORK_SELECTION_MANUALLY_DONE = 1; |
| private static final int EVENT_NETWORK_SCAN_RESULTS = 2; |
| private static final int EVENT_NETWORK_SCAN_ERROR = 3; |
| private static final int EVENT_NETWORK_SCAN_COMPLETED = 4; |
| |
| private static final String PREF_KEY_NETWORK_OPERATORS = "network_operators_preference"; |
| |
| @VisibleForTesting |
| PreferenceCategory mPreferenceCategory; |
| @VisibleForTesting |
| NetworkOperatorPreference mSelectedPreference; |
| private View mProgressHeader; |
| private Preference mStatusMessagePreference; |
| @VisibleForTesting |
| List<CellInfo> mCellInfoList; |
| private int mSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID; |
| @VisibleForTesting |
| TelephonyManager mTelephonyManager; |
| private List<String> mForbiddenPlmns; |
| private boolean mShow4GForLTE = false; |
| private NetworkScanHelper mNetworkScanHelper; |
| private final ExecutorService mNetworkScanExecutor = Executors.newFixedThreadPool(1); |
| private MetricsFeatureProvider mMetricsFeatureProvider; |
| private boolean mUseNewApi; |
| private long mRequestIdManualNetworkSelect; |
| private long mRequestIdManualNetworkScan; |
| private long mWaitingForNumberOfScanResults; |
| |
| private static final int MIN_NUMBER_OF_SCAN_REQUIRED = 2; |
| |
| @Override |
| public void onCreate(Bundle icicle) { |
| super.onCreate(icicle); |
| |
| mUseNewApi = getContext().getResources().getBoolean( |
| com.android.internal.R.bool.config_enableNewAutoSelectNetworkUI); |
| mSubId = getArguments().getInt(Settings.EXTRA_SUB_ID); |
| |
| mPreferenceCategory = findPreference(PREF_KEY_NETWORK_OPERATORS); |
| mStatusMessagePreference = new Preference(getContext()); |
| mStatusMessagePreference.setSelectable(false); |
| mSelectedPreference = null; |
| mTelephonyManager = getContext().getSystemService(TelephonyManager.class) |
| .createForSubscriptionId(mSubId); |
| mNetworkScanHelper = new NetworkScanHelper( |
| mTelephonyManager, mCallback, mNetworkScanExecutor); |
| PersistableBundle bundle = ((CarrierConfigManager) getContext().getSystemService( |
| Context.CARRIER_CONFIG_SERVICE)).getConfigForSubId(mSubId); |
| if (bundle != null) { |
| mShow4GForLTE = bundle.getBoolean( |
| CarrierConfigManager.KEY_SHOW_4G_FOR_LTE_DATA_ICON_BOOL); |
| } |
| |
| mMetricsFeatureProvider = FeatureFactory |
| .getFactory(getContext()).getMetricsFeatureProvider(); |
| } |
| |
| @Override |
| public void onViewCreated(View view, Bundle savedInstanceState) { |
| super.onViewCreated(view, savedInstanceState); |
| |
| final Activity activity = getActivity(); |
| if (activity != null) { |
| mProgressHeader = setPinnedHeaderView(R.layout.progress_header) |
| .findViewById(R.id.progress_bar_animation); |
| setProgressBarVisible(false); |
| } |
| forceUpdateConnectedPreferenceCategory(); |
| } |
| |
| @Override |
| public void onStart() { |
| super.onStart(); |
| |
| updateForbiddenPlmns(); |
| if (isProgressBarVisible()) { |
| return; |
| } |
| if (mWaitingForNumberOfScanResults <= 0) { |
| startNetworkQuery(); |
| } |
| } |
| |
| /** |
| * Update forbidden PLMNs from the USIM App |
| */ |
| @VisibleForTesting |
| void updateForbiddenPlmns() { |
| final String[] forbiddenPlmns = mTelephonyManager.getForbiddenPlmns(); |
| mForbiddenPlmns = forbiddenPlmns != null |
| ? Arrays.asList(forbiddenPlmns) |
| : new ArrayList<>(); |
| } |
| |
| @Override |
| public void onStop() { |
| super.onStop(); |
| if (mWaitingForNumberOfScanResults <= 0) { |
| stopNetworkQuery(); |
| } |
| } |
| |
| @Override |
| public boolean onPreferenceTreeClick(Preference preference) { |
| if (preference != mSelectedPreference) { |
| stopNetworkQuery(); |
| |
| // Refresh the last selected item in case users reselect network. |
| clearPreferenceSummary(); |
| if (mSelectedPreference != null) { |
| // Set summary as "Disconnected" to the previously connected network |
| mSelectedPreference.setSummary(R.string.network_disconnected); |
| } |
| |
| mSelectedPreference = (NetworkOperatorPreference) preference; |
| mSelectedPreference.setSummary(R.string.network_connecting); |
| |
| mMetricsFeatureProvider.action(getContext(), |
| SettingsEnums.ACTION_MOBILE_NETWORK_MANUAL_SELECT_NETWORK); |
| |
| setProgressBarVisible(true); |
| // Disable the screen until network is manually set |
| getPreferenceScreen().setEnabled(false); |
| |
| mRequestIdManualNetworkSelect = getNewRequestId(); |
| mWaitingForNumberOfScanResults = MIN_NUMBER_OF_SCAN_REQUIRED; |
| final OperatorInfo operator = mSelectedPreference.getOperatorInfo(); |
| ThreadUtils.postOnBackgroundThread(() -> { |
| final Message msg = mHandler.obtainMessage( |
| EVENT_SET_NETWORK_SELECTION_MANUALLY_DONE); |
| msg.obj = mTelephonyManager.setNetworkSelectionModeManual( |
| operator, true /* persistSelection */); |
| msg.sendToTarget(); |
| }); |
| } |
| |
| return true; |
| } |
| |
| @Override |
| protected int getPreferenceScreenResId() { |
| return R.xml.choose_network; |
| } |
| |
| @Override |
| protected String getLogTag() { |
| return TAG; |
| } |
| |
| @Override |
| public int getMetricsCategory() { |
| return SettingsEnums.MOBILE_NETWORK_SELECT; |
| } |
| |
| private final Handler mHandler = new Handler() { |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case EVENT_SET_NETWORK_SELECTION_MANUALLY_DONE: |
| final boolean isSucceed = (boolean) msg.obj; |
| stopNetworkQuery(); |
| setProgressBarVisible(false); |
| getPreferenceScreen().setEnabled(true); |
| |
| mSelectedPreference.setSummary(isSucceed |
| ? R.string.network_connected |
| : R.string.network_could_not_connect); |
| break; |
| case EVENT_NETWORK_SCAN_RESULTS: |
| final List<CellInfo> results = (List<CellInfo>) msg.obj; |
| if (mRequestIdManualNetworkScan < mRequestIdManualNetworkSelect) { |
| Log.d(TAG, "CellInfoList (drop): " |
| + CellInfoUtil.cellInfoListToString(new ArrayList<>(results))); |
| break; |
| } |
| mWaitingForNumberOfScanResults--; |
| if ((mWaitingForNumberOfScanResults <= 0) && (!isResumed())) { |
| stopNetworkQuery(); |
| } |
| |
| mCellInfoList = new ArrayList<>(results); |
| Log.d(TAG, "CellInfoList: " + CellInfoUtil.cellInfoListToString(mCellInfoList)); |
| if (mCellInfoList != null && mCellInfoList.size() != 0) { |
| final NetworkOperatorPreference connectedPref = |
| updateAllPreferenceCategory(); |
| if (connectedPref != null) { |
| // update selected preference instance into connected preference |
| if (mSelectedPreference != null) { |
| mSelectedPreference = connectedPref; |
| } |
| } else if (!getPreferenceScreen().isEnabled()) { |
| if (connectedPref == null) { |
| mSelectedPreference.setSummary(R.string.network_connecting); |
| } |
| } |
| getPreferenceScreen().setEnabled(true); |
| } else if (getPreferenceScreen().isEnabled()) { |
| addMessagePreference(R.string.empty_networks_list); |
| // keep showing progress bar, it will be stopped when error or completed |
| setProgressBarVisible(true); |
| } |
| break; |
| |
| case EVENT_NETWORK_SCAN_ERROR: |
| stopNetworkQuery(); |
| Log.i(TAG, "Network scan failure " + msg.arg1 + ":" |
| + " scan request 0x" + Long.toHexString(mRequestIdManualNetworkScan) |
| + ", waiting for scan results = " + mWaitingForNumberOfScanResults |
| + ", select request 0x" |
| + Long.toHexString(mRequestIdManualNetworkSelect)); |
| if (mRequestIdManualNetworkScan < mRequestIdManualNetworkSelect) { |
| break; |
| } |
| if (!getPreferenceScreen().isEnabled()) { |
| clearPreferenceSummary(); |
| getPreferenceScreen().setEnabled(true); |
| } else { |
| addMessagePreference(R.string.network_query_error); |
| } |
| break; |
| |
| case EVENT_NETWORK_SCAN_COMPLETED: |
| stopNetworkQuery(); |
| Log.d(TAG, "Network scan complete:" |
| + " scan request 0x" + Long.toHexString(mRequestIdManualNetworkScan) |
| + ", waiting for scan results = " + mWaitingForNumberOfScanResults |
| + ", select request 0x" |
| + Long.toHexString(mRequestIdManualNetworkSelect)); |
| if (mRequestIdManualNetworkScan < mRequestIdManualNetworkSelect) { |
| break; |
| } |
| if (!getPreferenceScreen().isEnabled()) { |
| clearPreferenceSummary(); |
| getPreferenceScreen().setEnabled(true); |
| } else if (mCellInfoList == null) { |
| // In case the scan timeout before getting any results |
| addMessagePreference(R.string.empty_networks_list); |
| } |
| break; |
| } |
| return; |
| } |
| }; |
| |
| private final NetworkScanHelper.NetworkScanCallback mCallback = |
| new NetworkScanHelper.NetworkScanCallback() { |
| public void onResults(List<CellInfo> results) { |
| final Message msg = mHandler.obtainMessage(EVENT_NETWORK_SCAN_RESULTS, results); |
| msg.sendToTarget(); |
| } |
| |
| public void onComplete() { |
| final Message msg = mHandler.obtainMessage(EVENT_NETWORK_SCAN_COMPLETED); |
| msg.sendToTarget(); |
| } |
| |
| public void onError(int error) { |
| final Message msg = mHandler.obtainMessage(EVENT_NETWORK_SCAN_ERROR, error, |
| 0 /* arg2 */); |
| msg.sendToTarget(); |
| } |
| }; |
| |
| /** |
| * Update the content of network operators list. |
| * |
| * @return preference which shows connected |
| */ |
| @VisibleForTesting |
| NetworkOperatorPreference updateAllPreferenceCategory() { |
| int numberOfPreferences = mPreferenceCategory.getPreferenceCount(); |
| |
| // remove unused preferences |
| while (numberOfPreferences > mCellInfoList.size()) { |
| numberOfPreferences--; |
| mPreferenceCategory.removePreference( |
| mPreferenceCategory.getPreference(numberOfPreferences)); |
| } |
| |
| // update selected preference instance by index |
| for (int index = 0; index < mCellInfoList.size(); index++) { |
| final CellInfo cellInfo = mCellInfoList.get(index); |
| |
| if ((mSelectedPreference != null) && mSelectedPreference.isSameCell(cellInfo)) { |
| mSelectedPreference = (NetworkOperatorPreference) |
| (mPreferenceCategory.getPreference(index)); |
| } |
| } |
| |
| // update the content of preference |
| NetworkOperatorPreference connectedPref = null; |
| for (int index = 0; index < mCellInfoList.size(); index++) { |
| final CellInfo cellInfo = mCellInfoList.get(index); |
| |
| NetworkOperatorPreference pref = null; |
| if (index < numberOfPreferences) { |
| final Preference rawPref = mPreferenceCategory.getPreference(index); |
| if (rawPref instanceof NetworkOperatorPreference) { |
| // replace existing preference |
| pref = (NetworkOperatorPreference) rawPref; |
| pref.updateCell(cellInfo); |
| } else { |
| mPreferenceCategory.removePreference(rawPref); |
| } |
| } |
| if (pref == null) { |
| // add new preference |
| pref = new NetworkOperatorPreference(getPrefContext(), |
| cellInfo, mForbiddenPlmns, mShow4GForLTE); |
| pref.setOrder(index); |
| mPreferenceCategory.addPreference(pref); |
| } |
| pref.setKey(pref.getOperatorName()); |
| |
| if (mCellInfoList.get(index).isRegistered()) { |
| pref.setSummary(R.string.network_connected); |
| connectedPref = pref; |
| } else { |
| pref.setSummary(null); |
| } |
| } |
| |
| return connectedPref; |
| } |
| |
| /** |
| * Config the network operator list when the page was created. When user get |
| * into this page, the device might or might not have data connection. |
| * - If the device has data: |
| * 1. use {@code ServiceState#getNetworkRegistrationInfoList()} to get the currently |
| * registered cellIdentity, wrap it into a CellInfo; |
| * 2. set the signal strength level as strong; |
| * 3. get the title of the previously connected network operator, since the CellIdentity |
| * got from step 1 only has PLMN. |
| * - If the device has no data, we will remove the connected network operators list from the |
| * screen. |
| */ |
| private void forceUpdateConnectedPreferenceCategory() { |
| if (mTelephonyManager.getDataState() == mTelephonyManager.DATA_CONNECTED) { |
| // Try to get the network registration states |
| final ServiceState ss = mTelephonyManager.getServiceState(); |
| if (ss == null) { |
| return; |
| } |
| final List<NetworkRegistrationInfo> networkList = |
| ss.getNetworkRegistrationInfoListForTransportType( |
| AccessNetworkConstants.TRANSPORT_TYPE_WWAN); |
| if (networkList == null || networkList.size() == 0) { |
| return; |
| } |
| for (NetworkRegistrationInfo regInfo : networkList) { |
| final CellIdentity cellIdentity = regInfo.getCellIdentity(); |
| if (cellIdentity != null) { |
| final NetworkOperatorPreference pref = new NetworkOperatorPreference( |
| getPrefContext(), cellIdentity, mForbiddenPlmns, mShow4GForLTE); |
| pref.setSummary(R.string.network_connected); |
| // Update the signal strength icon, since the default signalStrength value |
| // would be zero |
| // (it would be quite confusing why the connected network has no signal) |
| pref.setIcon(SignalStrength.NUM_SIGNAL_STRENGTH_BINS - 1); |
| mPreferenceCategory.addPreference(pref); |
| break; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Clear all of the preference summary |
| */ |
| private void clearPreferenceSummary() { |
| int idxPreference = mPreferenceCategory.getPreferenceCount(); |
| while (idxPreference > 0) { |
| idxPreference--; |
| final NetworkOperatorPreference networkOperator = (NetworkOperatorPreference) |
| (mPreferenceCategory.getPreference(idxPreference)); |
| networkOperator.setSummary(null); |
| } |
| } |
| |
| private long getNewRequestId() { |
| return Math.max(mRequestIdManualNetworkSelect, |
| mRequestIdManualNetworkScan) + 1; |
| } |
| |
| private boolean isProgressBarVisible() { |
| if (mProgressHeader == null) { |
| return false; |
| } |
| return (mProgressHeader.getVisibility() == View.VISIBLE); |
| } |
| |
| protected void setProgressBarVisible(boolean visible) { |
| if (mProgressHeader != null) { |
| mProgressHeader.setVisibility(visible ? View.VISIBLE : View.GONE); |
| } |
| } |
| |
| private void addMessagePreference(int messageId) { |
| setProgressBarVisible(false); |
| mStatusMessagePreference.setTitle(messageId); |
| mPreferenceCategory.removeAll(); |
| mPreferenceCategory.addPreference(mStatusMessagePreference); |
| } |
| |
| private void startNetworkQuery() { |
| setProgressBarVisible(true); |
| if (mNetworkScanHelper != null) { |
| mRequestIdManualNetworkScan = getNewRequestId(); |
| mWaitingForNumberOfScanResults = MIN_NUMBER_OF_SCAN_REQUIRED; |
| mNetworkScanHelper.startNetworkScan( |
| mUseNewApi |
| ? NetworkScanHelper.NETWORK_SCAN_TYPE_INCREMENTAL_RESULTS |
| : NetworkScanHelper.NETWORK_SCAN_TYPE_WAIT_FOR_ALL_RESULTS); |
| } |
| } |
| |
| private void stopNetworkQuery() { |
| setProgressBarVisible(false); |
| if (mNetworkScanHelper != null) { |
| mWaitingForNumberOfScanResults = 0; |
| mNetworkScanHelper.stopNetworkQuery(); |
| } |
| } |
| |
| @Override |
| public void onDestroy() { |
| stopNetworkQuery(); |
| mNetworkScanExecutor.shutdown(); |
| super.onDestroy(); |
| } |
| } |