Proyectos de Subversion Android Microlearning

package com.cesams.twogetskills.activity;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;

import android.net.Uri;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.widget.ProgressBar;

import com.cesams.twogetskills.Constants;

import com.cesams.twogetskills.R;

import com.cesams.twogetskills.library.MD5;

import com.google.android.exoplayer2.ExoPlayer;

import com.google.android.exoplayer2.MediaItem;

import com.google.android.exoplayer2.Player;

import com.google.android.exoplayer2.SimpleExoPlayer;

import com.google.android.exoplayer2.source.MediaSource;

import com.google.android.exoplayer2.source.ProgressiveMediaSource;

import com.google.android.exoplayer2.ui.PlayerView;

import com.google.android.exoplayer2.upstream.DataSource;

import com.google.android.exoplayer2.upstream.DefaultDataSourceFactory;

import com.google.android.exoplayer2.upstream.DefaultHttpDataSourceFactory;

import com.google.android.exoplayer2.util.Util;

import java.util.Calendar;

import java.util.Random;

import java.util.TimeZone;

public class VideoAudioActivity extends AppCompatActivity {

    private static final String TAG = "C2GS - VideoßActivity";

    private SimpleExoPlayer simpleExoPlayer;

    private PlayerView playerView;

    private ProgressBar progressBar;

    private long playbackPosition;

    private String videoAudioUrl;

    private String deviceId;

    private String password;

    private boolean durationSet = false;

    private long realDurationMillis = 0;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_video_audio);

        videoAudioUrl = getIntent().getStringExtra("videoAudioUrl");

        deviceId = getIntent().getStringExtra("deviceId");

        password = getIntent().getStringExtra("password");

        playerView = (PlayerView) findViewById(R.id.activity_video_audio_player);

        progressBar = (ProgressBar) findViewById(R.id.activity_video_audio_progress_bar);

        try {

        } catch (Exception e) {

            Log.e("VideoAudioActivity", " exoplayer error " + e.toString());

        }

    }

    public void onStart()

    {

        super.onStart();

        initializePlayer();

    }

    public void onStop()

    {

        super.onStop();

        releasePlayer();

    }

    @Override

    public void onBackPressed() {

        try {

            long currentPosition = simpleExoPlayer.getCurrentPosition();

            long duration = simpleExoPlayer.getDuration();

            long dif = duration - currentPosition;

            //10 seg x 1000 milliseconds

            if(dif <= 10000 ) {

                Intent intent = new Intent();

                intent.putExtra("completed", true);

                intent.putExtra("requestCode", Constants.REQUEST_CODE_AUDIO_VIDEO);

                setResult(RESULT_OK, intent);

                finish();

            }

        } catch(Exception e) {

        }

        setResult(RESULT_CANCELED);

        finish();

    }

    public void initializePlayer() {

        simpleExoPlayer = new SimpleExoPlayer.Builder(this).build();

        preparePlayer();

        playerView.setPlayer(simpleExoPlayer);

        simpleExoPlayer.setPlayWhenReady(true);

        simpleExoPlayer.seekTo(0, playbackPosition);

        simpleExoPlayer.addListener(new Player.EventListener() {

            @Override

            public void onPlaybackStateChanged(int state) {

                if (state == ExoPlayer.STATE_READY && !durationSet) {

                    realDurationMillis = simpleExoPlayer.getDuration();

                    durationSet = true;

                } else if(state == ExoPlayer.STATE_IDLE) {

                    playerView.setKeepScreenOn(false);

                } else  if(state == ExoPlayer.STATE_ENDED) {

                    playerView.setKeepScreenOn(false);

                    Intent intent = new Intent();

                    intent.putExtra("completed", true);

                    intent.putExtra("requestCode", Constants.REQUEST_CODE_AUDIO_VIDEO);

                    setResult(RESULT_OK, intent);

                    finish();

                } else {

                    playerView.setKeepScreenOn(true);

                }

            }

            @Override

            public void onIsLoadingChanged(boolean isLoading) {

                if (isLoading){

                    progressBar.setVisibility(View.VISIBLE);

                } else {

                    progressBar.setVisibility(View.INVISIBLE);

                }

            }

        });

    }

    public void preparePlayer()

    {

        TimeZone timeZone = TimeZone.getTimeZone("UTC");

        Calendar calendar = Calendar.getInstance(timeZone);

        TimeZone tz = calendar.getTimeZone();

        int created =  (int) (calendar.getTimeInMillis() / 1000);

        Random random = new Random(created);

        int rand = 1000 + random.nextInt(8999);

        Log.d(TAG, "token = " + deviceId);

        Log.d(TAG, "created = " + created);

        Log.d(TAG, "rand = " + rand);

        Log.d(TAG, "calc = " + password + ':' +  created + ':' + rand);

        String secret = MD5.generar(password + ':' +  created + ':' + rand);

        try {

            DefaultHttpDataSourceFactory httpDataSourceFactory = new DefaultHttpDataSourceFactory(Util.getUserAgent(this, this.getString(R.string.app_name)), null);

            httpDataSourceFactory.getDefaultRequestProperties().set(Constants.HTTP_HEADER_SECURITY_TOKEN, deviceId);

            httpDataSourceFactory.getDefaultRequestProperties().set(Constants.HTTP_HEADER_SECURITY_SECRET, secret);

            httpDataSourceFactory.getDefaultRequestProperties().set(Constants.HTTP_HEADER_SECURITY_CREATED, String.valueOf(created));

            httpDataSourceFactory.getDefaultRequestProperties().set(Constants.HTTP_HEADER_SECURITY_RAND, String.valueOf(rand));

            DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(this, null, httpDataSourceFactory);

            // Create a progressive media source pointing to a stream uri.

            Log.d(TAG, "video file = " + videoAudioUrl);

            MediaSource mediaSource = new ProgressiveMediaSource.Factory(dataSourceFactory).createMediaSource(MediaItem.fromUri(Uri.parse(videoAudioUrl)));

            simpleExoPlayer.setMediaSource(mediaSource);

        } catch (Exception e) {

            Log.e("MainAcvtivity", " exoplayer error " + e.toString());

        }

    }

    public void releasePlayer() {

        playbackPosition = simpleExoPlayer.getCurrentPosition();

        simpleExoPlayer.release();

    }

}