1 2Android ContentProviderPaging Sample 3=================================== 4 5This sample demonstrates how to use the ContentProvider with paging support introduced 6in Android O. The ContentProvider now accepts additional arguments for the offset and 7the limit in the query method to support paging instead of fetching all the data in 8a single query method call. 9 10Introduction 11------------ 12 13[ContentProvider][1] and [DocumentsProvider][2] now supports paging instead of fetching the all 14data at once. 15 16Starting from Android O, ContentProvider#query(Uri, String[], Bundle, CancellationSignal) and 17DocumentsProvider#query(Uri, String[], Bundle, CancellationSignal) methods are introduced. 18The Bundle accepts the keys for ContentResolver.QUERY_ARG_OFFSET as an starting offset and 19ContentResolver.QUERY_ARG_LIMIT as the number of items included in the returned Cursor object. 20 21Similarly, the returned Cursor object now has a Bundle object obtained by Cursor#getExtras(). 22The Bundle is able to include data such as the total size of the underlying data set. 23 24[1]: https://developer.android.com/reference/android/content/ContentProvider.html 25[2]: https://developer.android.com/reference/android/provider/DocumentsProvider.html 26 27Pre-requisites 28-------------- 29 30- Android SDK 27 31- Android Build Tools v27.0.2 32- Android Support Repository 33 34Screenshots 35------------- 36 37<img src="screenshots/screenshot-1.png" height="400" alt="Screenshot"/> 38 39Getting Started 40--------------- 41 42This sample uses the Gradle build system. To build this project, use the 43"gradlew build" command or use "Import Project" in Android Studio. 44 45Support 46------- 47 48- Google+ Community: https://plus.google.com/communities/105153134372062985968 49- Stack Overflow: http://stackoverflow.com/questions/tagged/android 50 51If you've found an error in this sample, please file an issue: 52https://github.com/googlesamples/android-ContentProviderPaging 53 54Patches are encouraged, and may be submitted by forking this project and 55submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details. 56 57License 58------- 59 60Copyright 2017 The Android Open Source Project, Inc. 61 62Licensed to the Apache Software Foundation (ASF) under one or more contributor 63license agreements. See the NOTICE file distributed with this work for 64additional information regarding copyright ownership. The ASF licenses this 65file to you under the Apache License, Version 2.0 (the "License"); you may not 66use this file except in compliance with the License. You may obtain a copy of 67the License at 68 69http://www.apache.org/licenses/LICENSE-2.0 70 71Unless required by applicable law or agreed to in writing, software 72distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 73WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 74License for the specific language governing permissions and limitations under 75the License. 76
