Android how to use a static spinner dropdown list

Android how to use a static spinner dropdown list

in this article, I am sharing how to use a spinner in android.  spinner is like a dropdown list to select an item dropdown list. 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

Step 1:- Open your android studio and create an activity in your project.

Step 2:- Open your Activity XML file

Add spinner in your XML.

<Spinner
    android:id="@+id/spinnerQuantity"
    android:layout_width="match_parent"
    android:layout_height="40dp"
    android:layout_weight="1.3"
    android:gravity="center"
    android:spinnerMode="dropdown"
    android:textColor="@color/secondryText"
    android:background="@drawable/editbox"
    />

Add spinner in your design screen where you can use the dropdown list and add it.

Step 3:-  Open your Java file.

public class CompleteCondition extends AppCompatActivity { 
private Spinner QuantitySpinner;
public static String QuantityID="";

 @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_complete_condition); 
 QuantitySpinner=(Spinner)findViewById(R.id.spinnerQuantity);
 Quantity(); 

 } 

 public void Quantity(){
    // Spinner Drop down elements
    List<String> categories = new ArrayList<String>();
    categories.add("1");categories.add("2");categories.add("3");categories.add("4");categories.add("5");categories.add("6");
    categories.add("7");categories.add("8");categories.add("9");categories.add("10");categories.add("11");categories.add("12");
    categories.add("13");categories.add("14");categories.add("15");categories.add("16");categories.add("17");categories.add("18");
    // Creating adapter for spinner
    ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, categories);
    // Drop down layout style - list view with radio button
    dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    // attaching data adapter to spinner
    QuantitySpinner.setAdapter(dataAdapter);
    QuantitySpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {

        @Override
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            // On selecting a spinner item
            ((TextView) parent.getChildAt(0)).setTextColor(Color.BLACK);
            QuantityID = parent.getItemAtPosition(position).toString();
            // Showing selected spinner item
//            Toast.makeText(parent.getContext(), QuantityID, Toast.LENGTH_LONG).show();
        }

        @Override
        public void onNothingSelected(AdapterView<?> arg0) {
            // TODO Auto-generated method stub
        }
    });
}