android video player from SD card

package com.example.videoplaysdcard;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.widget.MediaController;
import android.widget.VideoView;

public class MainActivity extends Activity {
    VideoView videoView_player;
    private static final String TAG="com.example.videoplaysdcard.MainActivity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initUIElements();
        playVideoFile("/mnt/sdcard/backups/p.mp4");
    }



    private void initUIElements() {
        videoView_player = (VideoView) findViewById(R.id.videoView_player);
    }
   
    private void playVideoFile(String sdCardPath) {
        try{
        MediaController mc = new MediaController(this);
        mc.setAnchorView(videoView_player);
        mc.setMediaPlayer(videoView_player);
        videoView_player.setMediaController(mc);
        videoView_player.setVideoPath(sdCardPath);
        videoView_player.requestFocus();
        videoView_player.start();
        }catch(Exception e){
            Log.e(TAG,e.toString());
        }
    }

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

}