In the default state, a spinner shows its currently selected value.
Spinners provide a quick way to select one value from a set. If you are not clear with the basic concepts of Android, you can pursue this Android online training to understand each & every nuance of the technology. The items in the Spinner come from the Adapterassociated. Spinners is one of the widgets in Android which allows the user to pick one item from a list of items. In this topic of “ How to Create Android Widgets” we will learn how to create a custom spinner in android. To define the selection event handler for a spinner, implement the AdapterView.OnItemSelectedListener interface and the corresponding onItemSelected() callback method.Become a Certified Professional Lets Take a spin on Custom Spinner in Android When the user selects an item from the drop-down, the Spinner object The layout the adapter should use to display the list of spinner choices ( simple_spinner_dropdown_item is another standard layout defined by theĬall setAdapter() to apply the adapter to your
You should then call setDropDownViewResource(int) to specify Platform and is the default layout you should use unless you'd like to define your own layout The simple_spinner_item layout is provided by the This method is a layout resource that defines how the selected choice appears in the You to create an ArrayAdapter from the string array. Specify the layout to use when the list of choices appearsĪtDropDownViewResource(android.R.layout.simple_spinner_dropdown_item) R.anets_array, android.R.layout.simple_spinner_item) Create an ArrayAdapter using the string array and a default spinner layoutĪrrayAdapter adapter = ArrayAdapter.createFromResource(this, Spinner spinner = (Spinner) findViewById(R.id.spinner)
With an array such as this one, you can use the following code in your Activity or Fragment to supply the spinner with the array using Them with a string array defined in a string The choices you provide for the spinner can come from any source, but must be provided throughĪn SpinnerAdapter, such as an ArrayAdapter if theĬhoices are available in an array or a CursorAdapter if the choices areįor instance, if the available choices for your spinner are pre-determined, you can provide To populate the spinner with a list of choices, you then need to specify a SpinnerAdapter in your Activity or Fragment Should usually do so in your XML layout with a element. You can add a spinner to your layout with the Spinner object. Touching the spinner displays a dropdown menu with all otherĪvailable values, from which the user can select a new one.
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