Android ListView - Fill With Array

October 15, 2017 Oclemy Android ListView 1 minute, 38 seconds

This is a simple ListView tutorial.Here is what we do:

  • Fill ListView with data from a simple array.
  • We use ArrayAdapter.
  • Handle ItemClicks.

Our MainActivity  

This is our main activity.

package com.tutorials.hp.listviewarray;

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

public class MainActivity extends AppCompatActivity {

 ListView lv;
 String[] spacecrafts={"Juno","Hubble","Casini","WMAP","Spitzer","Pioneer","Columbia","Challenger","Apollo","Curiosity"};

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

    lv= (ListView) findViewById(R.id.lv);

    //ADAPTER
    ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,spacecrafts);
    lv.setAdapter(adapter);

     //LISTENER
    lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
        Toast.makeText(MainActivity.this, spacecrafts[i], Toast.LENGTH_SHORT).show();
    }
    });

 }

}

Our XML Layout

This is our main activity's layout.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.tutorials.hp.listviewarray.MainActivity">

    <ListView
        android:id="@+id/lv"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
         />
</RelativeLayout>

How To Run

  1. Download the project.
  2. You'll get a zipped file,extract it.
  3. Open the Android Studio.
  4. Now close, already open project.
  5. From the Menu bar click on File >New> Import Project.
  6. Now Choose a Destination Folder, from where you want to import project.
  7. Choose an Android Project.
  8. Now Click on “OK“.
  9. Done, your done importing the project,now edit it.

More Resources

Resource Link
GitHub Browse Browse
GitHub Download Link Download

Oclemy,Cheers.

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