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README.md

      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