class MainActivity

package kr.co.braverokmc.videoplayer;

import android.media.MediaPlayer;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.MediaController;
import android.widget.Toast;
import android.widget.VideoView;

public class MainActivity extends AppCompatActivity {

    VideoView videoView;
    String url ="https://sites.google.com/site/ubiaccessmobile/sample_video.mp4";


    Toast toast;

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

        videoView=(VideoView)findViewById(R.id.videoView);

        // 동영상 위에 동영상을 컨트롤 할 수 있게 컨트롤러 객체 생성
        MediaController controller=new MediaController(this);
        videoView.setMediaController(controller);
        videoView.setVideoURI(Uri.parse(url));
        videoView.requestFocus();

        //재생이 준비 되었는지
        videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mp) {

                toastShow("동영상 재생이 준비되었습니다.");
            }
        });

        //재생이 완료되었을 때
        videoView.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
            @Override
            public void onCompletion(MediaPlayer mp) {
                toastShow("동영상 재생이 완료되었습니다.");
            }
        });

    }


    public void onClick(View v){
        videoView.seekTo(0);  //처음으로 이동
        videoView.start();
    }


    private void toastShow(String text){

        if(toast==null){
            toast= Toast.makeText(getApplicationContext(), text, Toast.LENGTH_SHORT);
        }else {
            toast.setText(text);
        }
        toast.show();
    }
}

 

 

R.layout.activity_main

<?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:id="@+id/activity_main"
    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="kr.co.braverokmc.videoplayer.MainActivity">

    <Button
        android:text="시작"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:id="@+id/button"
        android:onClick="onClick"
        />

    <VideoView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/videoView"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        android:layout_below="@+id/button" />
</RelativeLayout>

 

 

 

AndroidMainfest.xml

 <uses-permission android:name="android.permission.INTERNET"/>