You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
90 lines
3.2 KiB
90 lines
3.2 KiB
7 months ago
|
|
||
|
|
Android CustomChoiceList Sample
|
||
|
|
===================================
|
||
|
|
|
||
|
|
This sample demonstrates how to create custom checkable layouts, for use with ListView's choiceMode
|
||
|
|
attribute.
|
||
|
|
|
||
|
|
Introduction
|
||
|
|
------------
|
||
|
|
|
||
|
|
This sample demonstrates how to create custom single- or multi-choice [ListView][1] UIs on Android.
|
||
|
|
|
||
|
|
When a ListView has a `android:choiceMode` attribute set, it will allow users to "choose" one or more items. For
|
||
|
|
exmaple, refer to `res/layout/sample_main.xml` in this project:
|
||
|
|
|
||
|
|
```xml
|
||
|
|
<ListView android:id="@android:id/list"
|
||
|
|
android:layout_width="match_parent"
|
||
|
|
android:layout_height="0dp"
|
||
|
|
android:layout_weight="1"
|
||
|
|
android:paddingLeft="@dimen/page_margin"
|
||
|
|
android:paddingRight="@dimen/page_margin"
|
||
|
|
android:scrollbarStyle="outsideOverlay"
|
||
|
|
android:choiceMode="multipleChoice" />
|
||
|
|
```
|
||
|
|
|
||
|
|
The framework provides these default list item layouts that show standard radio buttons or check boxes next to a single
|
||
|
|
line of text:
|
||
|
|
|
||
|
|
- android.R.layout.simple_list_item_single_choice
|
||
|
|
- android.R.layout.simple_list_item_multiple_choice.
|
||
|
|
|
||
|
|
In some cases, you may want to customize this layout. When doing so, the root view must implement the Checkable
|
||
|
|
interface. For an example, see this sample's `CheckableLinearLayout` class.
|
||
|
|
|
||
|
|
Lastly, remember to use padding on your ListViews to adhere to the standard metrics described in the Android Design
|
||
|
|
guidelines. When doing so, you should set the `android:scrollbarStyle` attribute such that the scrollbar doesn't inset.
|
||
|
|
|
||
|
|
[1]: http://developer.android.com/reference/android/widget/ListView.html
|
||
|
|
|
||
|
|
Pre-requisites
|
||
|
|
--------------
|
||
|
|
|
||
|
|
- Android SDK 27
|
||
|
|
- Android Build Tools v27.0.2
|
||
|
|
- Android Support Repository
|
||
|
|
|
||
|
|
Screenshots
|
||
|
|
-------------
|
||
|
|
|
||
|
|
<img src="screenshots/1-main.png" height="400" alt="Screenshot"/> <img src="screenshots/2-settings.png" height="400" alt="Screenshot"/>
|
||
|
|
|
||
|
|
Getting Started
|
||
|
|
---------------
|
||
|
|
|
||
|
|
This sample uses the Gradle build system. To build this project, use the
|
||
|
|
"gradlew build" command or use "Import Project" in Android Studio.
|
||
|
|
|
||
|
|
Support
|
||
|
|
-------
|
||
|
|
|
||
|
|
- Google+ Community: https://plus.google.com/communities/105153134372062985968
|
||
|
|
- Stack Overflow: http://stackoverflow.com/questions/tagged/android
|
||
|
|
|
||
|
|
If you've found an error in this sample, please file an issue:
|
||
|
|
https://github.com/googlesamples/android-CustomChoiceList
|
||
|
|
|
||
|
|
Patches are encouraged, and may be submitted by forking this project and
|
||
|
|
submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
|
||
|
|
|
||
|
|
License
|
||
|
|
-------
|
||
|
|
|
||
|
|
Copyright 2017 The Android Open Source Project, Inc.
|
||
|
|
|
||
|
|
Licensed to the Apache Software Foundation (ASF) under one or more contributor
|
||
|
|
license agreements. See the NOTICE file distributed with this work for
|
||
|
|
additional information regarding copyright ownership. The ASF licenses this
|
||
|
|
file to you under the Apache License, Version 2.0 (the "License"); you may not
|
||
|
|
use this file except in compliance with the License. You may obtain a copy of
|
||
|
|
the License at
|
||
|
|
|
||
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
|
||
|
|
Unless required by applicable law or agreed to in writing, software
|
||
|
|
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||
|
|
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||
|
|
License for the specific language governing permissions and limitations under
|
||
|
|
the License.
|