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A backport of the SwitchPreference component that was introduced on Android 4 (ICS / level 14). This port works on Android 2.1+ (Eclair MR1 / level 7).
Java
branch: master

README.md

Android Switch Preference Backport

A backport of the SwitchPreference component that was introduced on Android 4 (ICS / level 14).

This port works on Android 2.1+ (Eclair MR1 / level 7).

The current version of this library is 2.0.1.

IMPORTANT: UPDATE NOTICE

The v1 of this library used to backport the Switch widget as well as the SwitchPreference component.

Since the AppCompat v21 library now includes a Switch widget backport (SwitchCompat), another backport is no longer useful. That is why the v2 of this library now only includes the SwitchPreference backport.

This backport depends on the AppCompat library (the SwitchPreference embeds a SwitchCompat).

If your app needs Switches only, you do not need this library anymore! Please use the AppCompat's SwitchCompat instead

If your app needs SwitchPreferences however this library is for you! :)

Please also note that the Maven artifact (apklib) is no longer supported with this release.

How to use

Adding the library to your project

Option 1: Gradle

The aar artifact is available at the jcenter repository. Declare the repository and the dependency in your build.gradle file:

repositories {
    jcenter()
}

 (...)

dependencies {
    compile 'org.jraf:android-switch-backport:2.0.1'
}

Option 2: Android library project (ant / Eclipse)

This is an Android library project, you have to add it as a dependency to your project (please see this page to know how to do that.)

Using the SwitchPreference

Once you have done that, have a theme for your application (or Activity), that declares the asb_switchPreferenceStyle item to be the value @style/asb_Preference.SwitchPreference.

The simplest way to do that is to create a themes.xml file in your project's res/values folder with this contents:

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <style name="Theme.App" parent="Theme.AppCompat">
        <item name="asb_switchPreferenceStyle">@style/asb_Preference.SwitchPreference</item>
    </style>

</resources>

And use it in your Application or Activity by updating your AndroidManifest.xml file:

(...)
<application
    android:theme="@style/Theme.App"
(...)

or

(...)
<activity
    android:theme="@style/Theme.App"
(...)

Then in your preferences xml file:

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto" >

    <org.jraf.android.backport.switchwidget.SwitchPreference
        android:key="testKey"
        android:title="SwitchPreference Test"
        app:asb_summaryOff="@string/summary_off"
        app:asb_summaryOn="@string/summary_on" />

</PreferenceScreen>

Sample app

A sample app is available in the sample folder, and also on the Play Store: Get it on Google Play

Credits

The code was copied directly from the Android 5.0 (Lollipop / level 21) source code, then slightly tweaked by myself (BoD@JRAF.org) to make it run on 2.1+ (Eclair MR1 / level 7). The v1 SwitchPreference was added by Intrications (intrications.com / github.com/intrications), also by taking code from Android and tweaking it a bit. Other people also have contributed tweaks and fixes, please see this page for a detailed list: https://github.com/BoD/android-switch-backport/graphs/contributors.

Contributing

Pull requests are welcome, as long as they are consistent to the original SwitchPreference of the Android sdk.

Please do not contribute improvements that are not present in the original sdk classes! I believe it would be confusing for this backport to have a feature set different than the original sdk classes. It would also lead to difficult situations if/when stopping using this backport and using the sdk classes instead (which should happen when dropping support for old platforms). Thank you very much.

Licence

Licensed 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.

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