Simplified SDK API-Android

Engineering Portal / Digital / DCR & DTVR / Simplified SDK API / Simplified SDK API-Android

Android Studio Java Code Example

Select the below link to download the sample files
https://engineeringportal.nielsen.com/w/downloads/digital/sampleapplications/Simple-Android-App.zip Download Project Files]

NielsenInit.java

// This is sample code of a very basic implementation of the Nielsen 'Simplified API'
// This code is for educational purposes only
//

import android.content.Context;

import com.nielsen.app.sdk.IAppNotifier;
import com.nielsen.app.sdk.NielsenEventTracker;

import org.json.JSONException;
import org.json.JSONObject;

public class NielsenInit {

    private NielsenEventTracker mEventTracker = null;

    public NielsenEventTracker initEventTracker(Context mContext, IAppNotifier appNotifier){

        try {

            //Initialising the NielsenEventTracker class by passing app information which returns the instance of NielsenEventTracker.

            JSONObject appInformation = new JSONObject()

                    .put("appid", "PDA7D5EE6-B1B8-4123-9277-2A788BC653CA")
                    .put("appversion", "1.0")
                    .put("appname", "Abdul's Android Test app")
                    .put("sfcode", "dcr")
                    .put("ccode", "123")
                    .put("dma","456")
                    .put("uoo","0")
                    .put("nol_devDebug", "INFO")
                    .put("containerId", "0");

            mEventTracker = new NielsenEventTracker(mContext, appInformation, appNotifier);

        } catch (JSONException e) {
            e.printStackTrace();
        }

        return mEventTracker;
    }
}

SDKMethods.java

import org.json.JSONException;
import org.json.JSONObject;

/**
 * Created on 07/02/18.
 */

public class SDKMethods {

    public String url = "";
    JSONObject content = null;
  //Loading content Data
    public JSONObject loadContentData(){

        url = "http://www.nielseninternet.com/NielsenConsumer/prog_index.m3u8";

        JSONObject data = null;
        try {
            JSONObject content = new JSONObject()
                    .put( "assetName","ChromeCast1")
                    .put( "assetid","C77664")
                    .put( "length","3600")
                    .put( "program","MyProgram")
                    .put( "segB","CustomSegmentValueB")
                    .put( "segC","segmentC")
                    .put( "title","S2,E3")
                    .put( "type","content")
                    .put( "section","cloudApi_app")
                    .put( "airdate","20180120 10:00:00")
                    .put( "isfullepisode","y")
                    .put( "adloadtype","2")
                    .put( "channelName","My Channel 1")
                    .put( "pipMode","false");

            //Ad data,static data should be empty in content video dictionary
            JSONObject metaData = new JSONObject()
                    .put("content", content)
                    .put("ad", new JSONObject())
                    .put("static", new JSONObject());

            data = new JSONObject()
                    .put("metadata", metaData)
                    .put("event", "playhead")
                    .put("type", "content")
                    .put("playheadPosition", "0");



        } catch (JSONException e) {
                e.printStackTrace();
        }

        return data;

    }

MainActivity.java

package com.simplifiedapiapp.activities;

import android.app.ProgressDialog;
import android.media.MediaPlayer;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.Button;
import android.widget.SeekBar;

import com.simplifiedapiapp.utils.Constants;
import com.simplifiedapiapp.models.NielsenInit;
import com.simplifiedapiapp.R;
import com.simplifiedapiapp.models.SDKMethods;
import com.nielsen.app.sdk.IAppNotifier;
import com.nielsen.app.sdk.NielsenEventTracker;

import org.json.JSONException;
import org.json.JSONObject;

import java.io.IOException;

public class MainActivity extends AppCompatActivity implements IAppNotifier, SurfaceHolder.Callback, MediaPlayer.OnPreparedListener, View.OnClickListener, MediaPlayer.OnCompletionListener, MediaPlayer.OnErrorListener {

    public static final String TAG = MainActivity.class.getSimpleName();

    private SurfaceView mSurfaceView;
    private SeekBar seek;
    Button btnPlay;

    NielsenEventTracker eventTracker;
    private int videoType, totalVideos;
    private int totalVideosPlayed = 0;
    private boolean isVideoStarted = false, isPaused = false;
    JSONObject data = null;

    private MediaPlayer mMediaPlayer;
    private SurfaceHolder mSurfaceHolder;

    SDKMethods sdkMethods;

    private ProgressDialog dialog;
    private Handler playheadHandler;
    private Runnable playheadRunnable;


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

        //In SDKMethods class we wrote methods which creates content,Ad objects
        sdkMethods = new SDKMethods();

        getIntents();
        initUI();

        //In NielsenInit class we are initialising the NielsenEventTracker.
        //Getting the instance of NielsenEventTracker
        NielsenInit nielsenInit = new NielsenInit();

        //3rd parameter "this" referes to IAppNotifier interface which is needed to initialise NielsenEventTracker
        eventTracker = nielsenInit.initEventTracker(getApplicationContext(), this);
    }

    @Override
    protected void onResume() {
        super.onResume();

        //loading static data
        JSONObject staticObj = sdkMethods.loadStaticData();

        //sending static data to SDK.
        eventTracker.trackEvent(staticObj);
    }

    private void initUI() {

        seek = (SeekBar) findViewById(R.id.seek);
        btnPlay = (Button) findViewById(R.id.btnPlay);
        btnPlay.setOnClickListener(this);
    }

    private void getIntents() {

        videoType = getIntent().getIntExtra(Constants.INTENT_VIDEO_TYPE, 0);
        totalVideos = getIntent().getIntExtra(Constants.INTENT_TOTAL_VIDEOS, 0);


        if (videoType == Constants.onlyContent) {

            //loading video content data
            data = sdkMethods.loadContentData();
        } else {

            //loading Ad data
            data = sdkMethods.loadPreRollAdData();
        }
    }

    @Override
    public void surfaceCreated(SurfaceHolder holder) {

        Log.v(TAG, "surfaceCreated Called");

        if (isPaused) {
            //Once video is resumed after pause, setting surfaceholder to player.
            if (mMediaPlayer != null) {

                mSurfaceHolder = mSurfaceView.getHolder();
                mMediaPlayer.setDisplay(mSurfaceHolder);
            }

        } else {

            //This will execute for first time.
            setUpPlayer();
            mMediaPlayer.setOnCompletionListener(this);
            mMediaPlayer.setOnErrorListener(this);
        }
    }

    @Override
    public void onCompletion(MediaPlayer mediaPlayer) {
        try {

            playheadHandler.removeCallbacks(playheadRunnable);

            ///As 1 video completed playing, incrementing the variable value.
            totalVideosPlayed++;

            if (videoType == Constants.onlyContent || totalVideosPlayed == totalVideos) {

                //on content video complete, updating event as "complete" in object
                data.put("event", "complete");
            } else {
                //on Ad complete, updating event as "adStop" in object
                data.put("event", "adStop");
            }

            //sending the object to SDK.
            eventTracker.trackEvent(data);

            releaseMediaPlayer();

            checkVideosToBePlayed();

        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

    private void checkVideosToBePlayed(){

        //Checking if total videos played or not.
        if (totalVideosPlayed != totalVideos) {

            data = new JSONObject();

            //Checking if videoType is contentWithOneAd, then after completion of Ad, will play the content video.
            if (videoType == Constants.contentWithOneAd) {

                //loading video content data
                data = sdkMethods.loadContentData();

            } else if (videoType == Constants.contentWithTwoAds) {
                if (totalVideosPlayed == 1) {

                    //loading 2nd Ad data
                    data = sdkMethods.loadMidRollAdData();
                } else {

                    //loading video content data
                    data = sdkMethods.loadContentData();
                }
            }

            showProgressDialog();

            setUpPlayer();

            mMediaPlayer.setOnCompletionListener(this);
            mMediaPlayer.setOnErrorListener(this);

        }
    }

    @Override
    public boolean onError(MediaPlayer mediaPlayer, int i, int li) {
        Log.e(TAG, "Player error codes:" + i + ", " + li);
        return false;
    }

    //creating player
    private void setUpPlayer() {
        try {

            mMediaPlayer = new MediaPlayer();
            mMediaPlayer.setDisplay(mSurfaceHolder);
            mMediaPlayer.setDataSource(sdkMethods.url);
            mMediaPlayer.setOnPreparedListener(MainActivity.this);
            mMediaPlayer.prepareAsync();

        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
        Log.v(TAG, "surfaceChanged Called");
    }

    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        Log.v(TAG, "surfaceDestroyed Called");
    }

    @Override
    public void onPrepared(MediaPlayer mp) {

        if (dialog.isShowing()) {
            dialog.dismiss();
        }

        seek.setMax(convertTotime(mMediaPlayer.getDuration()));
        isVideoStarted = true;

        updateSeekbarAndPlayhead();
        mMediaPlayer.start();

    }

    @Override
    protected void onPause() {
        super.onPause();

        setPauseAction();
    }

    private void setPauseAction() {
        try {
            if (mMediaPlayer != null) {

                isVideoStarted = false;
                isPaused = true;
                mMediaPlayer.pause();


                //on video pause, updating event as pause in object
                data.put("event", "pause");

                //sending the object to SDK with "pause" event.
                eventTracker.trackEvent(data);

                btnPlay.setText(getString(R.string.play));

            }

        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        releaseMediaPlayer();
    }

    private void releaseMediaPlayer() {
        if (mMediaPlayer != null) {
            mMediaPlayer.release();
            mMediaPlayer = null;
        }
    }

    @Override
    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.btnPlay:
                try {
                    //If video is not yet played, then it will play else it will pause the video
                    if (!isVideoStarted) {

                        btnPlay.setText(getString(R.string.pause));

                        if (isPaused) {

                            isVideoStarted = true;
                            isPaused = false;

                            //Once the video is resumed after pause, setting event as "playhead".
                            data.put("event", "playhead");
                            mMediaPlayer.start();

                        } else {

                            mSurfaceView = (SurfaceView) findViewById(R.id.surface_view);
                            mSurfaceView.setVisibility(View.VISIBLE);

                            showProgressDialog();

                            mSurfaceHolder = mSurfaceView.getHolder();
                            mSurfaceHolder.addCallback(MainActivity.this);

                        }

                    } else {
                        setPauseAction();
                    }

                } catch (JSONException e) {
                    e.printStackTrace();
                } catch (Exception e) {
                    e.printStackTrace();
                }
                break;
        }

    }

    //Updates seekbar
    private void updateSeekbarAndPlayhead() {
        try {
            //to update playhead, setting the event as "playhead".
            data.put("event", "playhead");
            playheadHandler = new Handler();


            //Make sure you update Seekbar on UI thread
            MainActivity.this.runOnUiThread(playheadRunnable = new Runnable() {

                @Override
                public void run() {
                    if (mMediaPlayer != null) {
                        int mCurrentPosition = mMediaPlayer.getCurrentPosition() / 1000;
                        seek.setProgress(mCurrentPosition);
                        try {
                            if (!isPaused && mMediaPlayer.isPlaying()) {

                                //updating playHead position in Object each second.
                                data.put("playheadPosition", String.valueOf(mCurrentPosition));

                                //Sending data object to SDK with updated playHead position.
                                eventTracker.trackEvent(data);
                            }
                        } catch (JSONException e) {
                            e.printStackTrace();
                        }

                    }
                    playheadHandler.postDelayed(this, 1000);
                }
            });

        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

    private int convertTotime(long milliSec) {

        int minutes = (int) (milliSec / 1000);
        return minutes;
    }

    private void showProgressDialog() {

        runOnUiThread(new Runnable() {
            public void run() {
                dialog = new ProgressDialog(MainActivity.this);
                dialog.setCancelable(false);
                dialog.setMessage(getString(R.string.loading));
                dialog.show();
            }
        });
    }


    @Override
    public void onAppSdkEvent(long l, int i, String s) {

        //IAppNotifier method
    }
}