1 Android ContentProviderPaging Sample (Kotlin) 2 =================================== 3 4 This sample demonstrates how to use the ContentProvider with paging support introduced 5 in Android O. The ContentProvider now accepts additional arguments for the offset and 6 the limit in the query method to support paging instead of fetching all the data in 7 a single query method call. 8 9 Introduction 10 ------------ 11 12 [ContentProvider][1] and [DocumentsProvider][2] now supports paging instead of fetching the all 13 data at once. 14 15 Starting from Android O, ContentProvider#query(Uri, String[], Bundle, CancellationSignal) and 16 DocumentsProvider#query(Uri, String[], Bundle, CancellationSignal) methods are introduced. 17 The Bundle accepts the keys for ContentResolver.QUERY_ARG_OFFSET as an starting offset and 18 ContentResolver.QUERY_ARG_LIMIT as the number of items included in the returned Cursor object. 19 20 Similarly, the returned Cursor object now has a Bundle object obtained by Cursor#getExtras(). 21 The Bundle is able to include data such as the total size of the underlying data set. 22 23 [1]: https://developer.android.com/reference/android/content/ContentProvider.html 24 [2]: https://developer.android.com/reference/android/provider/DocumentsProvider.html 25 26 Pre-requisites 27 -------------- 28 29 - Android SDK 25 30 - Android Build Tools v25.0.3 31 - Android Support Repository 32 33 Screenshots 34 ------------- 35 36 <img src="screenshots/screenshot-1.png" height="400" alt="Screenshot"/> 37 38 Getting Started 39 --------------- 40 41 This sample uses the Gradle build system. To build this project, use the 42 "gradlew build" command or use "Import Project" in Android Studio. 43 44 Support 45 ------- 46 47 - Google+ Community: https://plus.google.com/communities/105153134372062985968 48 - Stack Overflow: http://stackoverflow.com/questions/tagged/android 49 50 If you've found an error in this sample, please file an issue: 51 https://github.com/googlesamples/android-ContentProviderPaging 52 53 Patches are encouraged, and may be submitted by forking this project and 54 submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details. 55 56 License 57 ------- 58 59 Copyright 2017 The Android Open Source Project, Inc. 60 61 Licensed to the Apache Software Foundation (ASF) under one or more contributor 62 license agreements. See the NOTICE file distributed with this work for 63 additional information regarding copyright ownership. The ASF licenses this 64 file to you under the Apache License, Version 2.0 (the "License"); you may not 65 use this file except in compliance with the License. You may obtain a copy of 66 the License at 67 68 http://www.apache.org/licenses/LICENSE-2.0 69 70 Unless required by applicable law or agreed to in writing, software 71 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 72 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 73 License for the specific language governing permissions and limitations under 74 the License. 75
