Simple seek bar implementation for media player

How to use seek bar for media player with seeking user position

This is how we run a simple seek bar implementation for the music player.

Media is from res/raw folder so pleasr add one song1.mp3 file.

1.activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:gravity="center"

    android:orientation="vertical" >

    <SeekBar

        android:id="@+id/seekBar1"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" />

    <Button

        android:id="@+id/button1"

        style="?android:attr/buttonStyleSmall"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Play" />

    <Button

        android:id="@+id/button2"

        style="?android:attr/buttonStyleSmall"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Stop" />

</LinearLayout>

2.MainActivity.java

package com.sri.seekbar;

import android.app.Activity;

import android.media.MediaPlayer;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.SeekBar;

import android.widget.SeekBar.OnSeekBarChangeListener;

import android.widget.Toast;

public class MainActivity extends Activity implements Runnable,

OnClickListener, OnSeekBarChangeListener {

private SeekBar seekBar;

private Button startMedia;

private Button stopMedia;

private MediaPlayer mp;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

seekBar = (SeekBar) findViewById(R.id.seekBar1);

startMedia = (Button) findViewById(R.id.button1);

stopMedia = (Button) findViewById(R.id.button2);

startMedia.setOnClickListener(this);

stopMedia.setOnClickListener(this);

seekBar.setOnSeekBarChangeListener(this);

seekBar.setEnabled(false);

}

public void run() {

int currentPosition = mp.getCurrentPosition();

int total = mp.getDuration();

while (mp != null && currentPosition < total) {

try {

Thread.sleep(1000);

currentPosition = mp.getCurrentPosition();

} catch (InterruptedException e) {

return;

} catch (Exception e) {

return;

}

seekBar.setProgress(currentPosition);

}

}

public void onClick(View v) {

if (v.equals(startMedia)) {

if (mp == null) {

mp = MediaPlayer.create(getApplicationContext(), R.raw.song2);

seekBar.setEnabled(true);

}

if (mp.isPlaying()) {

mp.pause();

startMedia.setText("play");

} else {

mp.start();

startMedia.setText("pause");

seekBar.setMax(mp.getDuration());

new Thread(this).start();

}

}

if (v.equals(stopMedia) && mp != null) {

if (mp.isPlaying() || mp.getDuration() > 0) {

mp.stop();

mp = null;

startMedia.setText("play");

seekBar.setProgress(0);

}

}

}

public void onProgressChanged(SeekBar seekBar, int progress,

boolean fromUser) {

try {

if (mp.isPlaying() || mp != null) {

if (fromUser)

mp.seekTo(progress);

} else if (mp == null) {

Toast.makeText(getApplicationContext(), "Media is not running",

Toast.LENGTH_SHORT).show();

seekBar.setProgress(0);

}

} catch (Exception e) {

Log.e("seek bar", "" + e);

seekBar.setEnabled(false);

}

}

@Override

public void onStartTrackingTouch(SeekBar seekBar) {

// TODO Auto-generated method stub

}

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

// TODO Auto-generated method stub

}

}

3.Its over. Easily user can touch and seek the music now.

Thank You.