android studio recyclerview on entry to screen

The ViewGroup class is a kind of View but, unlike the simple View class whose responsibility is simply displaying, the ViewGroup gives us the ability put multiple views into one view, which we can reference as a whole. The View class provides methods we can override to draw on the screen and a means to pass in parameters such as width, height, and our own custom attributes we would want to add to our View to make it behave as we would wish. It’s possible to create our own custom views to be able to achieve more flexibility when developing user interfaces.

EditText extends from the same View class and adds more functionality to enable the user to input data. TextView, for example, has a simple purpose of displaying text content on the screen. These classes are abstract and are extended to different implementations to suite a use-case. The Android platform uses the View and ViewGroup classes to draw items on the screen.

Hook our adapter to items and set it on RecyclerView.

Layout to be used for each item in our list.

Communication between RecyclerView Components.

Layout Calls – The Tweet List must be crazy.

You can use RecyclerView widget when you have data collections whose elements change at runtime depend on network event or user action. It is a container for displaying large datasets which can be scrolled efficiently by maintaining limited number of views.

public class RecyclerView_Adapter extends RecyclerView.The RecyclerView is a widget that is more flexible and advanced version of GridView and ListView.

implementation 'androidx.recyclerview:recyclerview-selection:1.1.0-rc01'Īfter adding the RecyclerView dependency in our project sync the project.

implementation 'androidx.recyclerview:recyclerview:1.1.0' //RecyclerView depedency.

androidTestImplementation ':espresso-core:3.2.0'.

implementation 'androidx.recyclerview:recyclerview:1.1.0'.

implementation 'nstraintlayout:constraintlayout:1.1.3'.

implementation 'androidx.appcompat:appcompat:1.1.0'.

implementation fileTree(dir: 'libs', include: ).

Android studio recyclerview on entry to screen