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DRAG DROP
The diagram below shows a basic form of the recommended architecture for apps that use Architecture Components. The architecture consists of a UI controller, a ViewModel that serves LiveData, a Repository, and a Room database. Drag modules to correct places.
Select and Place:
Answer is in the explanation below.
If you want to access a specific UI component in an app, use the UiSelector class. This class represents a query for specific elements in the currently displayed UI. What is correct about it?
(Choose two.)
Select all that apply, then click Submit answer.
If more than one matching element is found, the first matching element in the layout hierarchy is returned as the target UiObject.
If no matching UI element is found, an IOException is thrown.
If more than one matching element is found, the last matching element in the layout hierarchy is returned as the target UiObject.
If no matching UI element is found, a UiAutomatorObjectNotFoundException is thrown.
If you added to your build.gradle file a room.schemaLocation:
android { defaultConfig { javaCompileOptions { annotationProcessorOptions {
arguments = ["room.schemaLocation": "$projectDir/schemas".toString()]
}
}
}
}
Then, you build your app or module.
As a result you got a json file, with such path to it:
app/schemas/your_app_package/db_package/DbClass/DB_VERSION.json
What are the correct statements about this file? (Choose all that apply.)
Select all that apply, then click Submit answer.
It’s a file with Room-exported schema
Main JSONObject in this file usually should contain a number "formatVersion" and a JSONObject "database"
The JSONObject "database" in this file usually should contain such objects, like "entities", "views", "setupQueries", ets.
