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 import android.support.v7.preference.Preference; 21 22 import com.android.settings.R; 23 import com.android.settings.core.PreferenceControllerMixin; 24 25 public class DeletedChannelsPreferenceController extends NotificationPreferenceController 26 implements PreferenceControllerMixin { 27 28 private static final String KEY_DELETED = "deleted"; 29 DeletedChannelsPreferenceController(Context context, NotificationBackend backend)30 public DeletedChannelsPreferenceController(Context context, NotificationBackend backend) { 31 super(context, backend); 32 } 33 34 @Override getPreferenceKey()35 public String getPreferenceKey() { 36 return KEY_DELETED; 37 } 38 39 @Override isAvailable()40 public boolean isAvailable() { 41 if (!super.isAvailable()) { 42 return false; 43 } 44 // only visible on app screen 45 if (mChannel != null || hasValidGroup()) { 46 return false; 47 } 48 49 return mBackend.getDeletedChannelCount(mAppRow.pkg, mAppRow.uid) > 0; 50 } 51 updateState(Preference preference)52 public void updateState(Preference preference) { 53 if (mAppRow != null) { 54 int deletedChannelCount = mBackend.getDeletedChannelCount(mAppRow.pkg, mAppRow.uid); 55 preference.setTitle(mContext.getResources().getQuantityString( 56 R.plurals.deleted_channels, deletedChannelCount, deletedChannelCount)); 57 } 58 preference.setSelectable(false); 59 } 60 } 61