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 17 package com.android.settings.notification; 18 19 import android.content.Context; 20 21 import androidx.preference.Preference; 22 23 import com.android.settings.R; 24 import com.android.settings.core.PreferenceControllerMixin; 25 26 public class DeletedChannelsPreferenceController extends NotificationPreferenceController 27 implements PreferenceControllerMixin { 28 29 private static final String KEY_DELETED = "deleted"; 30 DeletedChannelsPreferenceController(Context context, NotificationBackend backend)31 public DeletedChannelsPreferenceController(Context context, NotificationBackend backend) { 32 super(context, backend); 33 } 34 35 @Override getPreferenceKey()36 public String getPreferenceKey() { 37 return KEY_DELETED; 38 } 39 40 @Override isAvailable()41 public boolean isAvailable() { 42 if (!super.isAvailable()) { 43 return false; 44 } 45 // only visible on app screen 46 if (mChannel != null || hasValidGroup()) { 47 return false; 48 } 49 50 return mBackend.getDeletedChannelCount(mAppRow.pkg, mAppRow.uid) > 0; 51 } 52 updateState(Preference preference)53 public void updateState(Preference preference) { 54 if (mAppRow != null) { 55 int deletedChannelCount = mBackend.getDeletedChannelCount(mAppRow.pkg, mAppRow.uid); 56 preference.setTitle(mContext.getResources().getQuantityString( 57 R.plurals.deleted_channels, deletedChannelCount, deletedChannelCount)); 58 } 59 preference.setSelectable(false); 60 } 61 } 62