Android Question Killing a service from a watchdog app.

[JakeBullet70]

Hi all.

I have a watchdog app that watches my kiosk app and if it crashes it will be restarted. But when it crashes it does not always stop all services. So... How can the watchdog app kill the main apps services?

I am using the OSLib.

I have tried this code. (and added this to the manifest:
(<user-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />
<user-permission android:name="android.permission.GET_TASKS" />)

    Dim os As OperatingSystem
    os.Initialize("")
    Dim l As List : l.Initialize
    l = os.getRunningServices(500)
    For x = 0 To l.Size - 1
        Dim obj As JavaObject = l.Get(x)
        Dim name As String = obj.GetField("process") 
        If name.ToUpperCase.Trim.EndsWith("CENTRAL") Then
            Dim pid As Object = obj.GetField("pid")
            os.killProcess(pid)
        End If
    Next

Am I missing something? Is there a better way?

 

[thedesolatesoul]

Does the os library work reliably?
You can create another service in your main app, and the watchdog just sends a killme intent to the main apps service that uses ExitApplication to kill itself.

 

[JakeBullet70]

The OS lib seems to work OK.
I am seeing a 'Sending signal. PID: 14770 SIG: 9' in the unfiltered logs which is the kill signal. It's just not dying a dignified death .

 

[JakeBullet70]

Just found you Inter-app Communication with Intents. I will give that a shot in the morning. Thanks again.

 

[thedesolatesoul]

Its just an idea, i would go down that route if i need to but other people would do it differently. I find intents reliable for real time communication.

 

[JakeBullet70]

I have used memory mapped files in Windows for real time communications. Might as well start understanding intents... I wonder if Java supports memory mapped files...