Menampilkan data ke listview (no database)

Kali ini postingan saya adalah tentang menampilkan data di listview, langkah awal adalah buat project android dulu, min os ginger bread, setelah itu di “MainActivity.java” ketikkan code berikut :

package com.example.listiseng;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Vector;

import org.json.JSONArray;

import org.json.JSONException;

import org.json.JSONObject;

import android.os.Bundle;

import android.app.Activity;

import android.app.ListActivity;

import android.util.Log;

import android.view.Menu;

import android.widget.ArrayAdapter;

import android.widget.ListAdapter;

import android.widget.ListView;

import android.widget.SimpleAdapter;

import android.widget.TextView;

import android.widget.Toast;

public class MainActivity extends ListActivity

{     

       @Override

       protected void onCreate(Bundle savedInstanceState) {

              super.onCreate(savedInstanceState);

              setContentView(R.layout.activity_main);

              data();

       }

        void data()

         {

                ArrayList<HashMap<String, String>> mylist = new ArrayList<HashMap<String, String>>();

             

                HashMap<String, String> map = new HashMap<String, String>();

                HashMap<String, String> map1 = new HashMap<String, String>();

                HashMap<String, String> map2 = new HashMap<String, String>();

               

               

          map.put("barang","rinso");

          map.put("harga","23000");

          map.put("unit","3");

         

          map1.put("barang","Kit");

          map1.put("harga","4000");

          map1.put("unit","2");

         

          map2.put("barang","kopi");

          map2.put("harga","3000");

          map2.put("unit","3");

         

       

                mylist.add(map);

                mylist.add(map1);

                mylist.add(map2);

             ListAdapter adapter = new SimpleAdapter(this, mylist , R.layout.row,

             new String[] { "barang", "harga","unit" },

                new int[] { R.id.barang,R.id.harga, R.id.unit});

             setListAdapter(adapter);

           

           

         }

}

Setelah selesai, sekarang ketikan “XML code” pada “Activity_main.xml” di folder RES è layout sbb :

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

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

    android:id="@+id/AbsoluteLayout1"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    tools:context=".MainActivity" >

    <ListView

        android:id="@id/android:list"

        android:layout_width="346dp"

        android:layout_height="447dp"

        android:layout_x="-6dp"

        android:layout_y="32dp" >

    </ListView>

    <Button

        android:id="@+id/button1"

        android:layout_width="match_parent"

        android:layout_height="32dp"

        android:layout_x="-1dp"

        android:layout_y="0dp"

        android:background="#FF4444"

        android:text="Barang                  Harga             Unit"

        android:textColor="#ffffff"

        android:textSize="16sp" />

</AbsoluteLayout>

Jika Sudah selesai, buat file XML pada folder RES è layout sbb :

<?xml version="1.0" encoding="utf-8"?>

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

    android:id="@+id/AbsoluteLayout1"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:background="@drawable/liner" >

    <TextView

        android:id="@+id/barang"

        android:layout_width="62dp"

        android:layout_height="wrap_content"

        android:layout_x="52dp"

        android:layout_y="3dp"

        android:text="Medium Text"

        android:textAppearance="?android:attr/textAppearanceMedium"

        android:textColor="#ffffff" />

    <TextView

        android:id="@+id/harga"

        android:layout_width="62dp"

        android:layout_height="wrap_content"

        android:layout_x="158dp"

        android:layout_y="3dp"

        android:text="Medium Text"

        android:textAppearance="?android:attr/textAppearanceMedium"

        android:textColor="#ffffff" />

    <TextView

        android:id="@+id/unit"

        android:layout_width="62dp"

        android:layout_height="wrap_content"

        android:layout_x="262dp"

        android:layout_y="0dp"

        android:text="Medium Text"

        android:textAppearance="?android:attr/textAppearanceMedium"

        android:textColor="#ffffff" />

</AbsoluteLayout>