Android dynamic spinner :

Introduction

Android dynamic spinner with a icon and text, can be much more easier in terms of  giving options to the user, i.e., when there is a option to select with an icon it will be much more easier for user to select i.e., in terms of a hotel menu where showing image of tiffin with its image to the left.

Previously I have made a tutorial on spinner where i have just used text in spinner.But now in this tutorial i have made a spinner which will have a icon in it.

Android dynamic spinner let’s you add a image to the left side or right side, now currently youtube is providing a image on the left side of the query showing the thumbnail of the video.

Spinners provide the easy interface to users providing a choice to select the data from the list of available information.

https://androidcoding.in/2016/02/28/android-tutorial-on-spinner/

activity_main.xml

Now we need to add a android dynamic spinner to the activity file and then it can be further designed.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="10dp">

    <Spinner
        android:id="@+id/spinner"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="50dp" />

</LinearLayout>

row.xml file

Next we need to design this android dynamic spinner accordingly i.e., we require icon to be there before text.This can be altered according to the design requirement.

Add a imageview and textview as below you can also add additional fields if required.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

    <ImageView
        android:id="@+id/icon"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:src="@drawable/icon"/>

    <TextView
        android:id="@+id/text"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:textSize="20dp"
        android:gravity="center_vertical"
        android:layout_marginLeft="20dp"
        android:textColor="#000000"/>

</LinearLayout>

MainActivity.java file

Add data to the spinner here i have given mobile operating systems data to spinner using a String Array.

String[] MobileOS = {"Select Mobile OS", "Android", "IOS", "Windows",
        "Black Berry", "Symbian", "java"};

Then initialize the spinner and also adapter.

ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
        R.layout.row, R.id.text, MobileOS);

Set the adapter so that data will be shown in the spinner

spin.setAdapter(adapter);

Android dynamic spinner full code :

Providing the full code for Android dynamic spinner implementation.

import android.app.Activity;
import android.graphics.PorterDuff;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.Spinner;

public class MainActivity extends Activity {

    String[] MobileOS = {"Select Mobile OS", "Android", "IOS", "Windows",
            "Black Berry", "Symbian", "java"};

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Spinner spin = (Spinner)findViewById(R.id.spinner);

        spin.getBackground().setColorFilter(getResources().getColor(android.R.color.black), PorterDuff.Mode.SRC_ATOP);

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                R.layout.row, R.id.text, MobileOS);
        spin.setAdapter(adapter);
    }
}

Android dynamic spinner output :

This screen depicts the usage of Android dynamic spinner

If any query’s in the tutorial on Android dynamic spinner let us know in the comment section below.

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