1 /* 2 * Copyright (C) 2020 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.development.storage; 18 19 import android.app.blob.BlobStoreManager; 20 import android.content.Context; 21 import android.os.UserHandle; 22 import android.util.Log; 23 24 import androidx.preference.Preference; 25 26 import com.android.settings.R; 27 import com.android.settings.core.PreferenceControllerMixin; 28 import com.android.settingslib.development.DeveloperOptionsPreferenceController; 29 30 import java.io.IOException; 31 32 public class SharedDataPreferenceController extends DeveloperOptionsPreferenceController 33 implements PreferenceControllerMixin { 34 private static final String TAG = "SharedDataPrefCtrl"; 35 private static final String SHARED_DATA = "shared_data"; 36 37 private BlobStoreManager mBlobStoreManager; 38 SharedDataPreferenceController(Context context)39 public SharedDataPreferenceController(Context context) { 40 super(context); 41 mBlobStoreManager = (BlobStoreManager) context.getSystemService(BlobStoreManager.class); 42 } 43 44 @Override getPreferenceKey()45 public String getPreferenceKey() { 46 return SHARED_DATA; 47 } 48 49 @Override updateState(Preference preference)50 public void updateState(Preference preference) { 51 try { 52 final boolean showPref = mBlobStoreManager != null 53 && !mBlobStoreManager.queryBlobsForUser(UserHandle.CURRENT).isEmpty(); 54 preference.setEnabled(showPref); 55 preference.setSummary(showPref ? R.string.shared_data_summary 56 : R.string.shared_data_no_blobs_text); 57 } catch (IOException e) { 58 Log.e(TAG, "Unable to fetch blobs for current user: " + e.getMessage()); 59 preference.setEnabled(false); 60 preference.setSummary(R.string.shared_data_no_blobs_text); 61 } 62 } 63 } 64