How do I run shell script from Android application

I know that I can run an Android instrumentation using abd shell. But I want to run the instrumentation from another Android app.

Basically, I want to create an Android app that tests another Android app using ins开发者_如何学编程trumentation.

Please let me know if there is a better way to create an Android app that can access to the another Android app to run some test codes..

Thanks in advance..

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You can run instrumentation from code using startInstrumentation(), like this

startInstrumentation(componentName, null, null);