Spinner Demo

We can also called as "drop down list".

• Add below code in activity_main.xml file.

activity.main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

    <Spinner

        android:id="@+id/spinner1"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:entries="@array/channel_arrays" />

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Go" />

</LinearLayout>

• Here we use the array to add text in spinner.
• Add below array code in res > values > strings.xml file.

 <string-array name="channel_arrays">

        <item>Food - Food</item>

        <item>SAB</item>

        <item>SONY</item>

        <item>M tv</item>

        <item>Colors</item>

        <item>Star Plus</item>

        <item>Discovery</item>

        <item>Histroy</item>

    </string-array>

• Add below code  in MainActivity.java file.

MainActivity.java

public class MainActivity extends Activity {

Spinner sp;

Button b;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

sp = (Spinner)findViewById(R.id.spinner1);

b = (Button)findViewById(R.id.button1);

sp.setOnItemSelectedListener(new OnItemSelectedListener() {

@Override

public void onItemSelected(AdapterView<?> parent, View view,

int pos, long id) {

Toast.makeText(parent.getContext(), 

"OnItemSelectedListener : " + parent.getItemAtPosition(pos).toString(),

Toast.LENGTH_SHORT).show();

}

@Override

public void onNothingSelected(AdapterView<?> arg0) {

// TODO Auto-generated method stub

}

});

b.setOnClickListener(new OnClickListener() {public void onClick(View v) {

Toast.makeText(MainActivity.this,"OnClickListener : "+"\nSpinner 1 : "+ String.valueOf(sp.getSelectedItem()),

Toast.LENGTH_SHORT).show();

}

});

}

}