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.support.v7.preference.Preference; 21 import android.support.v7.preference.PreferenceScreen; 22 import android.text.TextUtils; 23 24 import com.android.settings.R; 25 import com.android.settings.core.PreferenceControllerMixin; 26 import com.android.settingslib.core.AbstractPreferenceController; 27 28 public class FccEquipmentIdPreferenceController extends AbstractPreferenceController implements 29 PreferenceControllerMixin { 30 31 32 private static final String PROPERTY_EQUIPMENT_ID = "ro.ril.fccid"; 33 private static final String KEY_EQUIPMENT_ID = "fcc_equipment_id"; 34 FccEquipmentIdPreferenceController(Context context)35 public FccEquipmentIdPreferenceController(Context context) { 36 super(context); 37 } 38 39 @Override isAvailable()40 public boolean isAvailable() { 41 return !TextUtils.isEmpty(SystemProperties.get(PROPERTY_EQUIPMENT_ID)); 42 } 43 44 @Override displayPreference(PreferenceScreen screen)45 public void displayPreference(PreferenceScreen screen) { 46 super.displayPreference(screen); 47 final Preference pref = screen.findPreference(KEY_EQUIPMENT_ID); 48 if (pref != null) { 49 final String summary = SystemProperties.get(PROPERTY_EQUIPMENT_ID, 50 mContext.getResources().getString(R.string.device_info_default)); 51 pref.setSummary(summary); 52 } 53 } 54 55 @Override getPreferenceKey()56 public String getPreferenceKey() { 57 return KEY_EQUIPMENT_ID; 58 } 59 } 60