ListView Pada Android Studio

Assalamualaikum Wr Wb,
Pada kali ini saya menggunakan Android Studio, dikarena kan aplikasi eclipse saya terdapat kesalahan pada saat update. Semoga penjelasan singkat saya dapat dimengerti, dan dikembangkan lagi.

pertama, buatlah project baru pada Android Studio
kedua, buatlah design pada xml
ketiga, buatlah listview melalui coding pada bagan xml. Disini saya menggunakan 2 xml, yaitu tempat pembuatan listview dan textview
keempat, buatlah coding pada bagan java. Disini saya menggunakan 3 java class.
terakhir jalankan program.

mari kita lihat source code nya!

- Source Code list_time.xml :

xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical" android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingLeft="10dp"    android:paddingRight="10dp"    android:paddingBottom="5dp"    android:paddingTop="5dp">
<TextView    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:id="@+id/countries_name"    android:text="Name"    android:textSize="20dp"    android:textColor="#00a7f5" />
<TextView    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:id="@+id/total_time"    android:text="Total time"    android:textSize="20dp"    android:textColor="#f92a3f"/>
<TextView    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:id="@+id/Description"    android:text="Description"    android:textSize="20dp"    android:textColor="#000"/>
</LinearLayout>

- Source Code Content_main.xml :

xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="10dp"    android:paddingLeft="10dp"    android:paddingRight="10dp"    android:paddingTop="@dimen/activity_vertical_margin"    app:layout_behavior="@string/appbar_scrolling_view_behavior"    tools:context="com.example.user.uas.MainActivity"    tools:showIn="@layout/activity_main"    >
<ListView    android:layout_width="match_parent"    android:layout_height="match_parent"    android:id="@+id/listview_product"    android:dividerHeight="10dp"    android:layout_alignParentBottom="true"    android:layout_centerHorizontal="true"    android:layout_marginBottom="62dp" />



</RelativeLayout>

- Source Code pada MainActivity.java :

package com.example.user.uas;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {
private ListView lvtime;
private time_adapter adapter;
private List timeList;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        lvtime =(ListView)findViewById(R.id.listview_product);
        timeList = new ArrayList<>();
        //Add sample data for list
        //We can get data from DB, vebservice here
        timeList.add(new time(1,"Indonesia", 3, "UTC+07:00, UTC+08:00, UTC+09:00" ));
        timeList.add(new time(2,"Brunei Darussalam", 1, "UTC+08:00" ));
        timeList.add(new time(3,"Malaysia", 1, "UTC+08:00" ));
        timeList.add(new time(4,"Philipine", 1, "UTC+08:00" ));
        timeList.add(new time(5,"Singapore", 1, "UTC+08:00" ));

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

- Source Code pada time.java:

package com.example.user.uas;

/** * Created by user on 12/02/2016. */public class time {
    private int id;
    private String name;
    private int total;
    private String description;

//Constructor
    public time(int id, String name, int total, String description) {
        this.id = id;
        this.name = name;
        this.total = total;
        this.description = description;
    }
//Setter, Getter
    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getTotal() {
        return total;
    }

    public void setTotal(int total) {
        this.total = total;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }
}

Source Code pada time_adapter.java:

package com.example.user.uas;

import android.app.Application;
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import java.util.List;

/** * Created by user on 12/02/2016. */public class time_adapter extends BaseAdapter {
private Context mContext;
private List timeList;

//Constructor    public time_adapter(List timeList, Context mContext) {
        this.timeList = timeList;
        this.mContext = mContext;
    }

    public time_adapter(Application application, List timeList) {
    }

    @Override    public int getCount() {
        return timeList.size();
    }

    @Override    public Object getItem(int position) {
        return timeList.get(position);
    }

    @Override    public long getItemId(int position) {
        return position;
    }

    @Override    public View getView(int position, View convertView, ViewGroup parent) {
    View v =View.inflate(mContext, R.layout.list_time, null);
    TextView tvname=(TextView)v.findViewById(R.id.countries_name);
    TextView totaltime=(TextView)v.findViewById(R.id.total_time);
    TextView tvdescription=(TextView)v.findViewById(R.id.Description);
    //Set text for TextView    tvname.setText(timeList.get(position).getName());
    totaltime.setText(String.valueOf(timeList.get(position).getTotal()));
    tvdescription.setText(timeList.get(position).getDescription());
//Save time id to tagv.setTag(timeList.get(position).getId());
        return v;
    }
}