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README.md

      1 
      2 Android CustomChoiceList Sample
      3 ===================================
      4 
      5 This sample demonstrates how to create custom checkable layouts, for use with ListView's choiceMode
      6 attribute.
      7 
      8 Introduction
      9 ------------
     10 
     11 This sample demonstrates how to create custom single- or multi-choice [ListView][1] UIs on Android.
     12 
     13 When a ListView has a `android:choiceMode` attribute set, it will allow users to "choose" one or more items. For
     14 exmaple, refer to `res/layout/sample_main.xml` in this project:
     15 
     16 ```xml
     17 <ListView android:id="@android:id/list"
     18     android:layout_width="match_parent"
     19     android:layout_height="0dp"
     20     android:layout_weight="1"
     21     android:paddingLeft="@dimen/page_margin"
     22     android:paddingRight="@dimen/page_margin"
     23     android:scrollbarStyle="outsideOverlay"
     24     android:choiceMode="multipleChoice" />
     25 ```
     26 
     27 The framework provides these default list item layouts that show standard radio buttons or check boxes next to a single
     28 line of text:
     29 
     30 - android.R.layout.simple_list_item_single_choice
     31 - android.R.layout.simple_list_item_multiple_choice.
     32 
     33 In some cases, you may want to customize this layout. When doing so, the root view must implement the Checkable
     34 interface. For an example, see this sample's `CheckableLinearLayout` class.
     35 
     36 Lastly, remember to use padding on your ListViews to adhere to the standard metrics described in the Android Design
     37 guidelines. When doing so, you should set the `android:scrollbarStyle` attribute such that the scrollbar doesn't inset.
     38 
     39 [1]: http://developer.android.com/reference/android/widget/ListView.html
     40 
     41 Pre-requisites
     42 --------------
     43 
     44 - Android SDK 24
     45 - Android Build Tools v24.0.2
     46 - Android Support Repository
     47 
     48 Screenshots
     49 -------------
     50 
     51 <img src="screenshots/1-main.png" height="400" alt="Screenshot"/> <img src="screenshots/2-settings.png" height="400" alt="Screenshot"/> 
     52 
     53 Getting Started
     54 ---------------
     55 
     56 This sample uses the Gradle build system. To build this project, use the
     57 "gradlew build" command or use "Import Project" in Android Studio.
     58 
     59 Support
     60 -------
     61 
     62 - Google+ Community: https://plus.google.com/communities/105153134372062985968
     63 - Stack Overflow: http://stackoverflow.com/questions/tagged/android
     64 
     65 If you've found an error in this sample, please file an issue:
     66 https://github.com/googlesamples/android-CustomChoiceList
     67 
     68 Patches are encouraged, and may be submitted by forking this project and
     69 submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
     70 
     71 License
     72 -------
     73 
     74 Copyright 2016 The Android Open Source Project, Inc.
     75 
     76 Licensed to the Apache Software Foundation (ASF) under one or more contributor
     77 license agreements.  See the NOTICE file distributed with this work for
     78 additional information regarding copyright ownership.  The ASF licenses this
     79 file to you under the Apache License, Version 2.0 (the "License"); you may not
     80 use this file except in compliance with the License.  You may obtain a copy of
     81 the License at
     82 
     83 http://www.apache.org/licenses/LICENSE-2.0
     84 
     85 Unless required by applicable law or agreed to in writing, software
     86 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
     87 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
     88 License for the specific language governing permissions and limitations under
     89 the License.
     90