Android Question Launching a different launcher

[joneden]

Hi All,

I'm have an app that runs as a launcher with a kiosk mode. Occasionally though I need to exit and load the original launcher (in this case it's the Trebuchet launcher). I use the code below and every time the intent is not initialized.

    Dim objPackageManager As PackageManager
    Dim objIntent As Intent
    objIntent = objPackageManager.GetApplicationIntent ("com.cyanogenmod.trebuchet")
    StartActivity(objIntent)

If I change trebuchet to filemanager that works fine to start the filemanager app.

So obviously something is different for launchers.

Any suggestions?

Regards

Jon

 

[Erel]

This code lists all the applications that can be "home" applications:

Dim pm As PackageManager
Dim i As Intent
i.Initialize(i.ACTION_MAIN, "")
i.AddCategory("android.intent.category.HOME")
Log(pm.QueryIntentActivities(i))

 

[joneden]

Thanks Erel,

That lists the trebuchet launcher and my own launcher as expected however I still have the issue whereby I get an object not initialized error on the StartActivity line:

java.lang.RuntimeException: Object should first be initialized (Intent).

Is there an alternate way of launching an app?

Regards

Jon

 

[Erel]

Don't use GetApplicationIntent. You should instead get the required information from QueryIntentActivities:
http://www.b4x.com/search?query=PackageManager.QueryIntentActivities

 

[joneden]

Thanks Erel, I'm using that and it works - many thanks.