Audio Player
Generally, if you use an android system, with a Media Player class, you can get access to the audio or video files. Furthermore, you can have various playback options like a resume, pause, forward, reverse, and many more options.
The implementation of an audio player to perform various actions using a Media Player is given below.
Code
To play a file you need to make a new raw folder in the res directory. After that, add an audio file with the help of a MediaPlayer class.
Then, from \res\layout folder path, open activity_main.xml file and start writing the code.
Then, from \java\com.tutlane.audioplayerexample pathopen the main activity file MainActivity.java. Now, write the code as follows:
Activity_main.xml
<![CDATA[
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="10dp"
android:paddingRight="10dp">
<TextView
android:id="@+id/txtVw1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Now Playing: "
android:layout_marginTop="30dp"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/txtSname"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/txtVw1"
android:layout_toRightOf="@+id/txtVw1"
android:text="TextView" />
<ImageView
android:id="@+id/imgLogo"
android:layout_width="match_parent"
android:layout_height="450dp"
android:layout_below="@+id/txtVw1"
android:src="@drawable/tutlane" />
<ImageButton
android:id="@+id/btnBackward"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="44dp"
android:layout_marginLeft="20dp"
android:src="@android:drawable/ic_media_rew" />
<ImageButton
android:id="@+id/btnPlay"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/btnBackward"
android:layout_marginLeft="20dp"
android:layout_toRightOf="@+id/btnBackward"
android:src="@android:drawable/ic_media_play" />
<ImageButton
android:id="@+id/btnPause"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/btnPlay"
android:layout_marginLeft="20dp"
android:layout_toRightOf="@+id/btnPlay"
android:src="@android:drawable/ic_media_pause" />
<ImageButton
android:id="@+id/btnForward"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/btnPause"
android:layout_marginLeft="20dp"
android:layout_toRightOf="@+id/btnPause"
android:contentDescription="@+id/imageButton3"
android:src="@android:drawable/ic_media_ff" />
<TextView
android:id="@+id/txtStartTime"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/sBar"
android:text="0 min, 0 sec" />
<SeekBar
android:id="@+id/sBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@+id/btnBackward"
android:layout_toLeftOf="@+id/txtSongTime"
android:layout_toRightOf="@+id/txtStartTime" />
<TextView
android:id="@+id/txtSongTime"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/btnForward"
android:layout_alignTop="@+id/sBar"
android:text="0 min, 0 sec " />
</RelativeLayout>
]]>
MainActivity.java
<![CDATA[
package com.tutlane.mediaplayerexample;
import android.media.MediaPlayer;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageButton;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
import java.util.concurrent.TimeUnit;
public class MainActivity extends AppCompatActivity {
private ImageButton forwardbtn, backwardbtn, pausebtn, playbtn;
private MediaPlayer mPlayer;
private TextView songName, startTime, songTime;
private SeekBar songPrgs;
private static int oTime =0, sTime =0, eTime =0, fTime = 5000, bTime = 5000;
private Handler hdlr = new Handler();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
backwardbtn = (ImageButton)findViewById(R.id.btnBackward);
forwardbtn = (ImageButton)findViewById(R.id.btnForward);
playbtn = (ImageButton)findViewById(R.id.btnPlay);
pausebtn = (ImageButton)findViewById(R.id.btnPause);
songName = (TextView)findViewById(R.id.txtSname);
startTime = (TextView)findViewById(R.id.txtStartTime);
songTime = (TextView)findViewById(R.id.txtSongTime);
songName.setText("Baitikochi Chuste");
mPlayer = MediaPlayer.create(this, R.raw.baitikochi_chuste);
songPrgs = (SeekBar)findViewById(R.id.sBar);
songPrgs.setClickable(false);
pausebtn.setEnabled(false);
playbtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this, "Playing Audio", Toast.LENGTH_SHORT).show();
mPlayer.start();
eTime = mPlayer.getDuration();
sTime = mPlayer.getCurrentPosition();
if(oTime == 0){
songPrgs.setMax(eTime);
oTime =1;
}
songTime.setText(String.format("%d min, %d sec", TimeUnit.MILLISECONDS.toMinutes(eTime),
TimeUnit.MILLISECONDS.toSeconds(eTime) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS. toMinutes(eTime))) );
startTime.setText(String.format("%d min, %d sec", TimeUnit.MILLISECONDS.toMinutes(sTime),
TimeUnit.MILLISECONDS.toSeconds(sTime) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS. toMinutes(sTime))) );
songPrgs.setProgress(sTime);
hdlr.postDelayed(UpdateSongTime, 100);
pausebtn.setEnabled(true);
playbtn.setEnabled(false);
}
});
pausebtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mPlayer.pause();
pausebtn.setEnabled(false);
playbtn.setEnabled(true);
Toast.makeText(getApplicationContext(),"Pausing Audio", Toast.LENGTH_SHORT).show();
}
});
forwardbtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if((sTime + fTime) <= eTime)
{
sTime = sTime + fTime;
mPlayer.seekTo(sTime);
}
else
{
Toast.makeText(getApplicationContext(), "Cannot jump forward 5 seconds", Toast.LENGTH_SHORT).show();
}
if(!playbtn.isEnabled()){
playbtn.setEnabled(true);
}
}
});
backwardbtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if((sTime - bTime) > 0)
{
sTime = sTime - bTime;
mPlayer.seekTo(sTime);
}
else
{
Toast.makeText(getApplicationContext(), "Cannot jump backward 5 seconds", Toast.LENGTH_SHORT).show();
}
if(!playbtn.isEnabled()){
playbtn.setEnabled(true);
}
}
});
}
private Runnable UpdateSongTime = new Runnable() {
@Override
public void run() {
sTime = mPlayer.getCurrentPosition();
startTime.setText(String.format("%d min, %d sec", TimeUnit.MILLISECONDS.toMinutes(sTime),
TimeUnit.MILLISECONDS.toSeconds(sTime) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(sTime))) );
songPrgs.setProgress(sTime);
hdlr.postDelayed(this, 100);
}
};
}]]>
Image
