Unable to open an external android program using ActivityStarter

MIT App Inventor Help
1

I plan to make a large app consisting of multiple small apps with specific functions. The idea was to call one app from another and pass parameters.
To test this idea, I created a small app and then designed another app to call the 1st app. I used ActivityStarter for this. According to the documentation we need to use the following two lines of code:
ActivityPackage: appinventor.ai_HomerSimpson.HelloPurr
ActivityClass: appinventor.ai_HomerSimpson.HelloPurr.Screen1

My issue? Getting the source code, find the file youngandroidproject/project.properties and the first line with " main= ". (for the package and class name).
I tried unzipping the apk files then tried the aix files, to no avail. I just couldn’t find the file youngandroidproject/project.properties

I even tried logic by attaching my user name and app name (the app, designed on AppInventor, was already installed in my android phone (One+5)) .(see below):
ActivityPackage: appinventor.ai_Lavanian.AmbuApp01
ActivityClass: appinventor.ai_Lavanian.AmbuApp01.Screen1
This would only freeze the app.
So I added error trapping to the code and this is the error I got:“601, No corresponding activity was found”

Please help me find a way to call an external app and pass parameters to it.
Thank you, in advance.
Rgds,
Dr. Lavanian MBBS

2

You need to export the aia project file for each app
Use an unzip program to open up the aia file
You will see a folder called youngandroidproject
Open that folder and you will see a file called project.properties
Open that with a text editor and the first line should give you the required values

1 Like
3

This is in Spanish, but you can copy the codes …
http://kio4.com/appinventor/19B_activystarter.htm

http://kio4.com/appinventor/19E_activystarter_otra_app.htm

1 Like
4

Thank you! It worked.

5

Thank you. Will try it after translating code to english.

6

Hi!
I have got the same problem. I need to open an external app from AppInventor and it says me “Error 601, No corresponding activity was found”
The external app is Scope and I have written as Package and Class “com.aumentaty.Scope”, is the information that gives me the mobile.
What is going wrong? Could you help me?

Thanks!
Aloña.

7

this seems to be not correct, you can find the correct settings like this: Using the Activity Starter, chapter "Discovering how to set the ActivityStarter properties"

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