| /* |
| * 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 static android.telephony.SignalStrength.NUM_SIGNAL_STRENGTH_BINS; |
| |
| import android.content.Context; |
| import android.telephony.CellInfo; |
| import android.telephony.CellSignalStrength; |
| import android.util.Log; |
| |
| import androidx.preference.Preference; |
| |
| import com.android.settings.R; |
| import com.android.settings.Utils; |
| |
| import java.util.List; |
| |
| /** |
| * A Preference represents a network operator in the NetworkSelectSetting fragment. |
| */ |
| public class NetworkOperatorPreference extends Preference { |
| |
| private static final String TAG = "NetworkOperatorPref"; |
| private static final boolean DBG = false; |
| |
| private static final int LEVEL_NONE = -1; |
| |
| private CellInfo mCellInfo; |
| private List<String> mForbiddenPlmns; |
| private int mLevel = LEVEL_NONE; |
| private boolean mShow4GForLTE; |
| private boolean mUseNewApi; |
| |
| public NetworkOperatorPreference( |
| CellInfo cellinfo, Context context, List<String> forbiddenPlmns, boolean show4GForLTE) { |
| super(context); |
| mCellInfo = cellinfo; |
| mForbiddenPlmns = forbiddenPlmns; |
| mShow4GForLTE = show4GForLTE; |
| mUseNewApi = context.getResources().getBoolean( |
| com.android.internal.R.bool.config_enableNewAutoSelectNetworkUI); |
| refresh(); |
| } |
| |
| public CellInfo getCellInfo() { |
| return mCellInfo; |
| } |
| |
| /** |
| * Refresh the NetworkOperatorPreference by updating the title and the icon. |
| */ |
| public void refresh() { |
| if (DBG) Log.d(TAG, "refresh the network: " + CellInfoUtil.getNetworkTitle(mCellInfo)); |
| String networkTitle = CellInfoUtil.getNetworkTitle(mCellInfo); |
| if (CellInfoUtil.isForbidden(mCellInfo, mForbiddenPlmns)) { |
| networkTitle += " " + getContext().getResources().getString(R.string.forbidden_network); |
| } |
| setTitle(networkTitle); |
| |
| final CellSignalStrength signalStrength = mCellInfo.getCellSignalStrength(); |
| final int level = signalStrength != null ? signalStrength.getLevel() : LEVEL_NONE; |
| if (DBG) Log.d(TAG, "refresh level: " + String.valueOf(level)); |
| if (mLevel != level) { |
| mLevel = level; |
| updateIcon(mLevel); |
| } |
| } |
| |
| /** |
| * Update the icon according to the input signal strength level. |
| */ |
| public void setIcon(int level) { |
| updateIcon(level); |
| } |
| |
| private int getIconIdForCell(CellInfo ci) { |
| final int type = ci.getCellIdentity().getType(); |
| switch (type) { |
| case CellInfo.TYPE_GSM: |
| return R.drawable.signal_strength_g; |
| case CellInfo.TYPE_WCDMA: // fall through |
| case CellInfo.TYPE_TDSCDMA: |
| return R.drawable.signal_strength_3g; |
| case CellInfo.TYPE_LTE: |
| return mShow4GForLTE |
| ? R.drawable.ic_signal_strength_4g : R.drawable.signal_strength_lte; |
| case CellInfo.TYPE_CDMA: |
| return R.drawable.signal_strength_1x; |
| default: |
| return MobileNetworkUtils.NO_CELL_DATA_TYPE_ICON; |
| } |
| } |
| |
| private void updateIcon(int level) { |
| if (!mUseNewApi || level < 0 || level >= NUM_SIGNAL_STRENGTH_BINS) { |
| return; |
| } |
| Context context = getContext(); |
| setIcon(MobileNetworkUtils.getSignalStrengthIcon(context, level, NUM_SIGNAL_STRENGTH_BINS, |
| getIconIdForCell(mCellInfo), false)); |
| } |
| } |