cordova-plugin-run-in-backg.../README.md

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Cordova BackgroundMode-Plugin
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==============================
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A bunch of background mode plugins for Cordova 3.x.x
by Sebastián Katzer ([github.com/katzer](https://github.com/katzer))
## Supported Platforms
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- **iOS** (>=5)
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- **Android**
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- **WP8**
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## Adding the Plugin to your project
Through the [Command-line Interface](http://cordova.apache.org/docs/en/3.0.0/guide_cli_index.md.html#The%20Command-line%20Interface):
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```bash
# from master:
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cordova plugin add https://github.com/katzer/cordova-plugin-background-mode.git
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# last version:
cordova plugin add de.appplant.cordova.plugin.background-mode
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```
## Removing the Plugin from your project
Through the [Command-line Interface](http://cordova.apache.org/docs/en/3.0.0/guide_cli_index.md.html#The%20Command-line%20Interface):
```
cordova plugin rm de.appplant.cordova.plugin.background-mode
```
## Release Notes
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#### Version 0.5.0 (13.02.2014)
- Added Android support.
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#### Version 0.4.1 (13.02.2014)
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- Release under the Apache 2.0 license.
- [enhancement:] Location tracking is only activated on WP8 if the location service is available.
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- [bigfix:] Nullpointer exception on WP8.
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#### Version 0.4.0 (10.10.2013)
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- Added WP8 support<br>
The plugin turns the app into an location tracking app *(for the time it runs in the background)*.
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#### Version 0.2.1 (09.10.2013)
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- Added js interface to manually enable/disable the background mode.
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#### Version 0.2.0 (08.10.2013)
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- Added iOS (>= 5) support<br>
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The plugin turns the app into an location tracking app for the time it runs in the background.
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## Using the plugin
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Simply add the plugin to your project and the app will run while in background.
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The plugin creates the object ```window.plugin.backgroundMode``` with two methods:
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### enable()
The method enables the background mode. The mode is activated once the app has entered the background and will be deactivated after the app has entered the foreground.<br>
Please be aware, to activate the background mode the app needs to be in foreground.
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```javascript
/**
* Enables the background mode. The app will not pause while in background.
*/
window.plugin.backgroundMode.enable();
```
### disable()
The method disables the background mode. If the mode is disabled while the app is running in the background, the app will be paused immediately.
```javascript
/**
* Disables the background mode. The app will pause in background as usual.
*/
window.plugin.backgroundMode.disable();
```
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## Platform specifics
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### Location tracking on iOS
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**iOS 5-6**<br>
The app still runs in background, even if the location service is not actived.
**iOS 7**<br>
The location service needs to be enabled.
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### Optimization on WP8
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By default the plugin will track for geo updates while the application is in background and foreground. To stop tracking in foreground, the `MainPage.xaml.cs` file needs the following 2 methods:
```c#
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// MainPage.xaml.cs
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namespace your.own.namespace
{
public partial class MainPage : PhoneApplicationPage
{
/// </summary>
/// The page (the app) will enter the background and the background mode
/// needs to be activated.
/// </summary>
protected override void OnNavigatingFrom(System.Windows.Navigation.NavigatingCancelEventArgs e)
{
Cordova.Extension.Commands.BackgroundMode.Activate();
}
/// </summary>
/// The page (the app) will enter the foreground and the background mode
/// needs to be deactivated.
/// </summary>
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
Cordova.Extension.Commands.BackgroundMode.Deactivate();
}
}
}
```
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## Quirks
### The app crashes on iOS
If the app crashes after installing the plugin, make sure that your `*-Info.plist` is valid.
Do to some bugs in cordova or Plugman please reset all occurences like
```xml
<key>NSMainNibFile</key>
<string>
</string>
```
to
```xml
<key>NSMainNibFile</key>
<string></string>
```
### TypeError: Cannot read property 'currentVersion' of null
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The error occurs while trying to install the plugin from master. As a workaround the **version.bat** script has to be renamed to **version**.
On Mac or Linux
```
mv platforms/wp8/cordova/version.bat platforms/wp8/cordova/version
```
On Windows
```
ren platforms\wp8\cordova\version.bat platforms\wp8\cordova\version
```
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## Contributing
1. Fork it
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Commit your changes (`git commit -am 'Add some feature'`)
4. Push to the branch (`git push origin my-new-feature`)
5. Create new Pull Request
## License
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This software is released under the [Apache 2.0 License](http://opensource.org/licenses/Apache-2.0).