1 /* 2 * Copyright (C) 2017 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 package com.android.settings.deviceinfo; 17 18 import android.content.Context; 19 import android.os.SystemProperties; 20 import android.text.TextUtils; 21 22 import androidx.preference.Preference; 23 import androidx.preference.PreferenceScreen; 24 25 import com.android.settings.R; 26 import com.android.settings.core.PreferenceControllerMixin; 27 import com.android.settingslib.core.AbstractPreferenceController; 28 29 public class FccEquipmentIdPreferenceController extends AbstractPreferenceController implements 30 PreferenceControllerMixin { 31 32 33 private static final String PROPERTY_EQUIPMENT_ID = "ro.ril.fccid"; 34 private static final String KEY_EQUIPMENT_ID = "fcc_equipment_id"; 35 FccEquipmentIdPreferenceController(Context context)36 public FccEquipmentIdPreferenceController(Context context) { 37 super(context); 38 } 39 40 @Override isAvailable()41 public boolean isAvailable() { 42 return !TextUtils.isEmpty(SystemProperties.get(PROPERTY_EQUIPMENT_ID)); 43 } 44 45 @Override displayPreference(PreferenceScreen screen)46 public void displayPreference(PreferenceScreen screen) { 47 super.displayPreference(screen); 48 final Preference pref = screen.findPreference(KEY_EQUIPMENT_ID); 49 if (pref != null) { 50 final String summary = SystemProperties.get(PROPERTY_EQUIPMENT_ID, 51 mContext.getResources().getString(R.string.device_info_default)); 52 pref.setSummary(summary); 53 } 54 } 55 56 @Override getPreferenceKey()57 public String getPreferenceKey() { 58 return KEY_EQUIPMENT_ID; 59 } 60 } 61