Get Google Associate-Android-Developer Exam Dumps

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?

RecyclerView is a subclass of ViewGroup and is a more resource-efficient way to display scrollable lists. Instead of creating a View for each item that may or may not be visible on the screen, RecyclerView:

We have a custom view that extends android.widget.ProgressBar. Our progress bar is not touchable, focusable, etc.: it just shows progress. Style for our custom progress bar extends

''Widget.AppCompat.ProgressBar.Horizontal''. An item, named ''progressDrawable'', in our style, is a xml file . What we usually can see as a main single element in this xml file:

Working with Custom View. Once you define the custom attributes, you can use them in layout XML files just like built-in attributes. The only difference is that your custom attributes belong to a different namespace. Instead of belonging to the http://schemas.android.com/apk/res/android namespace, they belong to:

Working with Custom View. To define custom attributes, we can add resources to our project. It is customary to put these resources into a file: