Jul 20, 2016

Load Spinner with string-array from resources xml


To define string-array in resources xml, edit values/strings.xml to add items of string-array.
<resources>
    <string name="app_name">AndroidSpinner</string>
    <string-array name="weekday">
        <item>Sunday</item>
        <item>Monday</item>
        <item>Tuesday</item>
        <item>Wednesday</item>
        <item>Thursday</item>
        <item>Friday</item>
        <item>Saturday</item>
    </string-array>
</resources>


Edit layout/activity_main.xml to add Spinner with entries to load from string-array.
<?xml version="1.0" encoding="utf-8"?>
<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"
    tools:context="com.example.androidspinner.MainActivity">

    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="android-coding.blogspot.com"
        android:textSize="28dp"
        android:textStyle="bold" />
    <Spinner
        android:id="@+id/myspinner"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:entries="@array/weekday"/>
</LinearLayout>


MainActivity.java
package com.example.androidspinner;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Spinner;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Spinner mySpinner = (Spinner)findViewById(R.id.myspinner);
        mySpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
                String item = (String)adapterView.getItemAtPosition(i);
                Toast.makeText(MainActivity.this, item, Toast.LENGTH_LONG).show();
            }

            @Override
            public void onNothingSelected(AdapterView<?> adapterView) {

            }
        });
    }
}

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