Xamarin Certification Xamarin.Android Development

Question 1

Which attribute marks a class as an Android Activity in Xamarin.Android?

Accepted Answer

[Activity]

Answer

The [Activity] attribute registers a C# class as an Android Activity and allows setting properties like Label and MainLauncher.

Question 2

In Xamarin.Android, which method is the first lifecycle callback when an Activity is created?

Accepted Answer

OnCreate

Answer

OnCreate is called when the Activity is first created and is where you initialize views and state.

Question 3

What method inflates an XML layout resource in Xamarin.Android?

Accepted Answer

SetContentView

Answer

SetContentView inflates and sets the XML layout as the Activity's content view.

Question 4

Which class is used to start a new Activity in Xamarin.Android?

Accepted Answer

Intent

Answer

An Intent object specifies the target Activity and is passed to StartActivity to launch it.

Question 5

In Xamarin.Android, which attribute is required to declare permissions in the app manifest?

Accepted Answer

[UsesPermission]

Answer

The [UsesPermission] assembly-level attribute adds a <uses-permission> entry to AndroidManifest.xml.

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