Tag Archives: mediaplayer

Video MediaPlayer

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We can stream media, including video, to a MediaPlayer object using a surface view.

Video MediaPlayer

For example, you could use the following layout:

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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#000000"
    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=".MainActivity" >
 
    <SurfaceView
        android:id="@+id/activity_video_surfView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_above="@+id/activity_video_imageButton_play"/>
 
    <Button
        android:id="@+id/activity_video_imageButton_play"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:background="@android:drawable/ic_media_play" />
 
</RelativeLayout>

We will refer to the SurfaceView in the implementation of the Activity class.

Now in our Activity class, add the following interfaces:

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public class VideoActivity extends Activity implements SurfaceHolder.Callback{

Your IDE should prompt you to add these unimplemented methods:

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@Override
public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {
    // TODO Auto-generated method stub
}
 
@Override
public void surfaceCreated(SurfaceHolder arg0) {
//setup
}
 
@Override
public void surfaceDestroyed(SurfaceHolder arg0) {
    // TODO Auto-generated method stub
}
 
@Override
public void onPrepared(MediaPlayer mp) {
//start playback
}

In surfaceCreated we must add these code line:

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try {
    mMediaPlayer = new MediaPlayer();
    mMediaPlayer.setDisplay(mVidHolder);
    mMediaPlayer.setDataSource(Constants.VID_ADDRESS);
    mMediaPlayer.prepare();
    mMediaPlayer.setOnPreparedListener(this);
    mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
} catch (Exception e) {
    e.printStackTrace();
}

In surfaceDestroyed we add this:

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mMediaPlayer.stop();

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MediaPlayer Audio

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There are different ways to control audio. MediaPlayer is good way. We see how to use MediaPlayer for control audio.

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First step is to create file which name is raw in res/
Then in raw we must paste a song in mp3 format.
MediaPlayer Audio

In order to use MediaPlayer , we have to call a static Method create() of this class. This method returns an instance of MediaPlayer class. Its syntax is as follows:

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MediaPlayer mMediaPlayer = MediaPlayer.create(this, R.raw.song);

The second parameter is the name of the song that you want to play. You have to make a new folder under your project with name raw and place the music file into it.

Once you have created the Mediaplayer object you can call some methods to start or stop the music. These methods are listed below.

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mMediaPlayer.start();
mMediaPlayer.pause();

you can read more about this methods in this link

Now We see simple example, First we need this strings

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<string name="app_name">MediaPlayer</string>
    <string name="now_play">Now Playing:</string>
    <string name="inital_time">0 min, 0 sec</string>
    <string name="pausing_sound">Pausing sound</string>
    <string name="playing_sound">Playing sound</string>
    <string name="action_song">Song</string>

In our activity_main.xml we need couple of textViews and imageButtons.

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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    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=".MainActivity" >
 
    <ImageView
        android:id="@+id/imageView_profile"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:src="@drawable/profile" />
 
    <LinearLayout
        android:id="@+id/linear_layout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_alignParentBottom="true"
        android:layout_marginBottom="14dp"
        android:orientation="horizontal" >
 
        <ImageButton
            android:id="@+id/imageButton_media_rew"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:onClick="rewind"
            android:src="@android:drawable/ic_media_rew" />
 
        <ImageButton
            android:id="@+id/imageButton_pause"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="14dp"
            android:src="@android:drawable/ic_media_pause" />
 
        <ImageButton
            android:id="@+id/imageButton_play"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="14dp"
            android:src="@android:drawable/ic_media_play" />
 
        <ImageButton
            android:id="@+id/imageButton_media_ff"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="14dp"
            android:onClick="forward"
            android:src="@android:drawable/ic_media_ff" />
    </LinearLayout>
 
    <SeekBar
        android:id="@+id/seekBar1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_above="@+id/linear_layout"
        android:layout_toLeftOf="@+id/textView2"
        android:layout_toRightOf="@+id/textView1" />
 
    <TextView
        android:id="@+id/textView_start_min"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_alignTop="@+id/seekBar1"
        android:text="@string/inital_time"
        android:textAppearance="?android:attr/textAppearanceSmall" />
 
    <TextView
        android:id="@+id/textView_finish_min"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignTop="@+id/seekBar1"
        android:text="@string/inital_time"
        android:textAppearance="?android:attr/textAppearanceSmall" />
 
    <TextView
        android:id="@+id/textView_title_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/now_play"
        android:textAppearance="?android:attr/textAppearanceMedium" />
 
    <TextView
        android:id="@+id/textView_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textView_title_name"
        android:layout_alignBottom="@+id/textView_title_name"
        android:layout_marginLeft="5dp"
        android:layout_toRightOf="@+id/textView_title_name" />
 
</RelativeLayout>

The last step in MainActivity

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package com.thedeveloperworldisyours.mediaplayer;
 
import java.util.concurrent.TimeUnit;
 
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Handler;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
 
import com.thedeveloperworldisyours.mediaplayer.utils.Constants;
 
public class MainActivity extends Activity implements OnClickListener {
 
    public TextView mSongName, mStartTimeField, mEndTimeField;
    private MediaPlayer mMediaPlayer;
    private double mStartTime = 0;
    private double mFinalTime = 0;
    private Handler mMyHandler = new Handler();;
    private int mForwardTime = 5000;
    private int mBackwardTime = 5000;
    private SeekBar mSeekbar;
    private ImageButton mPlayButton, mPauseButton;
    public static int mOneTimeOnly = 0;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mSongName = (TextView) findViewById(R.id.textView_name);
        mStartTimeField = (TextView) findViewById(R.id.textView_start_min);
        mEndTimeField = (TextView) findViewById(R.id.textView_finish_min);
        mSeekbar = (SeekBar) findViewById(R.id.seekBar1);
        mPlayButton = (ImageButton) findViewById(R.id.imageButton_play);
        mPauseButton = (ImageButton) findViewById(R.id.imageButton_pause);
        mSongName.setText(Constants.NAME_SONG);
        mMediaPlayer = MediaPlayer.create(this, R.raw.song);
        mSeekbar.setClickable(false);
        mPauseButton.setEnabled(false);
 
        mPlayButton.setOnClickListener(this);
        mPauseButton.setOnClickListener(this);
    }
 
    public void play(View view) {
        Toast.makeText(getApplicationContext(),
                getString(R.string.playing_sound), Toast.LENGTH_SHORT).show();
        mMediaPlayer.start();
        mFinalTime = mMediaPlayer.getDuration();
        mStartTime = mMediaPlayer.getCurrentPosition();
        if (mOneTimeOnly == 0) {
            mSeekbar.setMax((int) mFinalTime);
            mOneTimeOnly = 1;
        }
 
        mEndTimeField.setText(String.format(
                "%d min, %d sec",
                TimeUnit.MILLISECONDS.toMinutes((long) mFinalTime),
                TimeUnit.MILLISECONDS.toSeconds((long) mFinalTime)
                        - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS
                                .toMinutes((long) mFinalTime))));
        mStartTimeField.setText(String.format(
                "%d min, %d sec",
                TimeUnit.MILLISECONDS.toMinutes((long) mStartTime),
                TimeUnit.MILLISECONDS.toSeconds((long) mStartTime)
                        - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS
                                .toMinutes((long) mStartTime))));
        mSeekbar.setProgress((int) mStartTime);
        mMyHandler.postDelayed(UpdateSongTime, 100);
        mPauseButton.setEnabled(true);
        mPlayButton.setEnabled(false);
    }
 
    private Runnable UpdateSongTime = new Runnable() {
        public void run() {
            mStartTime = mMediaPlayer.getCurrentPosition();
            mStartTimeField.setText(String.format(
                    "%d min, %d sec",
                    TimeUnit.MILLISECONDS.toMinutes((long) mStartTime),
                    TimeUnit.MILLISECONDS.toSeconds((long) mStartTime)
                            - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS
                                    .toMinutes((long) mStartTime))));
            mSeekbar.setProgress((int) mStartTime);
            mMyHandler.postDelayed(this, 100);
        }
    };
 
    public void pause(View view) {
        Toast.makeText(getApplicationContext(),
                getString(R.string.pausing_sound), Toast.LENGTH_SHORT).show();
 
        mMediaPlayer.pause();
        mPauseButton.setEnabled(false);
        mPlayButton.setEnabled(true);
    }
 
    public void forward(View view) {
        int temp = (int) mStartTime;
        if ((temp + mForwardTime) <= mFinalTime) {
            mStartTime = mStartTime + mForwardTime;
            mMediaPlayer.seekTo((int) mStartTime);
        } else {
            Toast.makeText(getApplicationContext(),
                    "Cannot jump forward 5 seconds", Toast.LENGTH_SHORT).show();
        }
 
    }
 
    public void rewind(View view) {
        int temp = (int) mStartTime;
        if ((temp - mBackwardTime) > 0) {
            mStartTime = mStartTime - mBackwardTime;
            mMediaPlayer.seekTo((int) mStartTime);
        } else {
            Toast.makeText(getApplicationContext(),
                    "Cannot jump backward 5 seconds", Toast.LENGTH_SHORT)
                    .show();
        }
 
    }
 
    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.imageButton_play:
            play(v);
            break;
        case R.id.imageButton_pause:
            pause(v);
            break;
        default:
            break;
        }
    }
 
}

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