<?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">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        >
        <Button
            android:id="@+id/play"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="Play"
            />

        <Button
            android:id="@+id/pause"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="Pause"
            />

        <Button
            android:id="@+id/replay"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="Replay"
            />
    </LinearLayout>
    <VideoView
        android:id="@+id/video_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"

        />

</LinearLayout>

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

package demo.jq.com.playvideotest;

import android.content.pm.PackageManager;
import android.net.Uri;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import android.widget.VideoView;

/**
 * @author jim
 */

public class MainActivity extends AppCompatActivity implements View.OnClickListener{
    private VideoView videoView;

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

        videoView = (VideoView) findViewById(R.id.video_view);
        Button play = (Button) findViewById(R.id.play);
        Button pause = (Button) findViewById(R.id.pause);
        Button replay = (Button) findViewById(R.id.replay);

        play.setOnClickListener(this);
        pause.setOnClickListener(this);
        replay.setOnClickListener(this);

        if (ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.WRITE_EXTERNAL_STORAGE)!= PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(MainActivity.this,new String[]{android.Manifest.permission.WRITE_EXTERNAL_STORAGE},1);
        } else {
            initVideoPath();
        }

    }

    private void initVideoPath() {
        try {
            Uri uri = Uri.parse("android.resource://demo.jq.com.playvideotest/"+R.raw.video);
            videoView.setVideoURI(uri);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }


    @Override
    public void onRequestPermissionsResult(int requestCode,  String[] permissions,  int[] grantResults) {
        switch (requestCode) {
            case 1:
                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    initVideoPath();
                } else {
                    Toast.makeText(this,"拒绝权限将无法使用程序",Toast.LENGTH_SHORT).show();
                    finish();
                }
                break;
            default:
        }
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.play:
                if (!videoView.isPlaying()) {
                    videoView.start();
                }
                break;
            case R.id.pause:
                if (videoView.isPlaying()) {
                    videoView.pause();
                }
                break;
            case R.id.replay:
                if (videoView.isPlaying()) {
                    videoView.seekTo(0);
                    videoView.resume();
                }
                break;
            default:
                break;
        }
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        if (videoView != null) {
            videoView.suspend();
        }
    }
}