Add Automatic Instrumentation - User Interaction Instrumentation

[sdzhong]

Enable Automatic Instrumentation > User Interaction Instrumentation to avoid needing to manually instrument the checkout [android] transaction with ITransaction checkoutTransaction (ref: app/src/main/java/com/example/vu/android/empowerplant/MainFragment.java):

    public void checkout() {
        selectedStoreItems = this.adapter.getSelectedStoreItems();
        ITransaction checkoutTransaction = Sentry.startTransaction("checkout [android]", "http.client");
        checkoutTransaction.setOperation("http");
        Sentry.configureScope(scope -> scope.setTransaction(checkoutTransaction));

This presumes that the click on the checkout button begins a transaction as per the docs:

The UI instrumentation, once enabled, captures transactions for a set of different user interactions, which include clicks, scrolls, and swipes.

The transaction generated by the User Interaction Instrumentation should be comparable to the manually generated checkout [android] transaction, which includes a trace of 2 transactions and 3 issues, each of which should not be regressed. This transaction and its associated events are a way to demonstrate Distributed Tracing.

[stefanosiano]

the checkout() function is called in a menu of the activity. This is not supported by our instrumentation, yet.
There is an issue to track it