What is a spinner in android?

Spinners provide a quick way to select one value from a set. In the default state, a spinner shows its currently selected value. Touching the spinner displays a dropdown menu with all other available values, from which the user can select a new one. You can add a spinner to your layout with the Spinner object.

What is an ArrayAdapter in android?

ArrayAdapter is the most commonly used adapter in android. When you have a list of single type items which are stored in an array you can use ArrayAdapter. Likewise, if you have a list of phone numbers, names, or cities. ArrayAdapter has a layout with a single TextView.

What is spinner prompt?

android:prompt. The prompt to display when the spinner’s dialog is shown. android:spinnerMode. Display mode for spinner options.

Which view is used to displays loading spinner?

Spinner is used to display progress of those tasks whose total time of completion is unknown. In order to use that, you just need to define it in the xml like this. spinner. setVisibility(View.

What are dialogs in Android?

A dialog is a small window that prompts the user to make a decision or enter additional information. A dialog does not fill the screen and is normally used for modal events that require users to take an action before they can proceed. Dialog Design.

What is an AdapterView in Android?

AdapterView is a ViewGroup that displays items loaded into an adapter. The most common type of adapter comes from an array-based data source.

How do you move the android spinner drop down arrow closer to its emitting text?

You can make the arrow align to the center on the right side by setting its gravity, and you can move it towards the center by setting its right margin via the android:”right” attribute.

What is toast in Android?

A toast provides simple feedback about an operation in a small popup. It only fills the amount of space required for the message and the current activity remains visible and interactive. Toasts automatically disappear after a timeout.

What are loaders in Android?

Loaders in Android is an abstract class implementation of Loader and two default classes, which are provided by Android, I.E. AsyncTaskLoader , and cursor loaders. There is only one Loader instance per activity/fragment and is created by Loader managers. LoaderManager can manage multiple instances of Loaders.

How to play audio/video on Android with mediaplayer?

Android provides many ways to control playback of audio/video files and streams. One of this way is through a class called MediaPlayer. Android is providing MediaPlayer class to access built-in mediaplayer services like playing audio,video e.t.c. In order to use MediaPlayer, we have to call a static Method create() of this class.

How do I use a spinner?

In the default state, a spinner shows its currently selected value. Touching the spinner displays a dropdown menu with all other available values, from which the user can select a new one.

How do I add an adapterview adapter to a spinner?

Call setAdapter () to apply the adapter to your Spinner. When the user selects an item from the drop-down, the Spinner object receives an on-item-selected event. To define the selection event handler for a spinner, implement the AdapterView.OnItemSelectedListener interface and the corresponding onItemSelected () callback method.