Associate-Android-Developer 試験問題を無料オンラインアクセス

Each time your test invokes onView(), Espresso waits to perform the corresponding UI action or assertion until the following synchronization conditions are met: (Choose three.)

• A.Some developer-defined idling resources are not idle.
• B.There are no instances of AsyncTask currently executing a task.
• C.There are some instances of AsyncTask currently executing a task.
• D.The message queue is not empty.
• E.All developer-defined idling res
• F.The message queue is empty.

Select four different types of app components. (Choose four.)

• A.WorkManager
• B.AlarmManager
• C.Services
• D.Content providers
• E.Application
• F.Broadcast receivers
• G.Activities
• H.Layouts
• I.Fragments

For example, we have a file in our raw folder app/src/main/res/raw/sample_teas.json. To get an InputStream for reading it, from out Context context, we can do this:

• A.val input = context!!.getRawResource(R.raw.sample_teas)
• B.val input = context!!.openRawResource(R.raw.sample_teas)
• C.val input = context!!.resources.openRawResource(R.raw.sample_teas)

Filter logcat messages. If in the filter menu, a filter option "Show only selected application"? means:

• A.Apply no filters. Logcat displays all log messages from the device, regardless of which process you selected.
• B.Display the messages produced by the app code only (the default). Logcat filters the log messages using the PID of the active app.
• C.Create or modify a custom filter. For example, you could create a filter to view log messages from two apps at the same time.

Android uses adapters (from the Adapter class) to connect data with View items in a list. There are many different kinds of adapters available, and you can also write custom adapters. To connect data with View items, the adapter needs to know about the View items. From what is extended the entity that is usually used in an adapter and describes a View item and its position within the RecyclerView?

• A.RecyclerView.AdapterDataObserver
• B.RecyclerView.ViewHolder
• C.RecyclerView.ItemDecoration
• D.RecyclerViewAccessibilityDelegate