MvvmCross plugin for setting up Alarms - xamarin

Question

I want to write a cross mobile platform app that sets up the alarm by specifying the required parameters like Date and Time. I just want to set up only one time and not repeatedly.
I was unable to find any readily available plugin in mvvmcross or in Xamarin ?
Please help

Answer 1

Since there is no existing plugin within MVVMCross, you may want to write your own plugin. You can find the documentation here:
https://github.com/MvvmCross/MvvmCross/wiki/MvvmCross-plugins
Because you'd like to specify a few parameters, you'd want to see the following section:
https://github.com/MvvmCross/MvvmCross/wiki/MvvmCross-plugins#writing-a-configurable-plugin
Overall this is what you might do:
General Interface
public interface IAlarm
{
void SetupAlarm();
}
public class PluginLoader
: IMvxPluginLoader
{
public static readonly PluginLoader Instance = new PluginLoader();
public void EnsureLoaded()
{
var manager = Mvx.Resolve<IMvxPluginManager>();
manager.EnsurePlatformAdaptionLoaded<PluginLoader>();
}
}
Android Implementation
public class DroidAlarmConfiguration
: IMvxPluginConfiguration
{
public AlarmLength { get; set;}
}
public class DroidAlarm : IAlarm
{
public TimeSpan AlarmLength { get; set; }
public void SetupAlarm()
{
//ALARM IMPLEMENTATION HERE. NOTE THIS IS SOME JAVA SYNTAX!!!!
var globals = Mvx.Resolve<Cirrious.CrossCore.Droid.IMvxAndroidGlobals>();
var alarm = globals.ApplicationContext
.GetSystemService(Context.ALARM_SERVICE)
as AlarmManager;
Intent intent = new Intent(context, AlarmReceiver.class);
alarmIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
alarm.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
alarmLength, alarmIntent);
}
}
public class Plugin
: IMvxPlugin
{
private _alarmLength = **Your Value Here**;
public void Configure(IMvxPluginConfiguration configuration)
{
if (configuration == null)
return;
var droidConfiguration = (DroidAlarmConfiguration)configuration;
_alarmLength = droidConfiguration.AlarmLength;
}
public void Load()
{
var instance = new DroidAlarm();
instance.AlarmLength = _AlarmLength;
Mvx.RegisterSingleton<IAlarm>(instance);
}
}
Setup.cs - To set the values in one core place for all android/ios/windows
protected override IMvxPluginConfiguration GetPluginConfiguration(Type plugin)
{
if (plugin == typeof(Yours.Alarm.Droid.Plugin))
{
return new Yours.Alarm.Droid.DroidAlarmConfiguration()
{
AlarmLength = **YOUR VALUE HERE**
};
}
return null;
}
You would then follow the same Droid step for iOS and Windows Phone. I hope this helps!