Online Radio Streaming App for Android

Online radio streaming app for Android

So I found this sample and it works for me, here it is if you have the same issue:

in myMain.java

import android.app.Activity;
import android.os.Bundle;

import java.io.IOException;

import android.media.MediaPlayer;
import android.media.MediaPlayer.OnBufferingUpdateListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;

public class myMain extends Activity implements OnClickListener {

    private ProgressBar playSeekBar;

    private Button buttonPlay;

    private Button buttonStopPlay;

    private MediaPlayer player;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        initializeUIElements();

        initializeMediaPlayer();
    }

    private void initializeUIElements() {

        playSeekBar = (ProgressBar) findViewById(R.id.progressBar1);
        playSeekBar.setMax(100);
        playSeekBar.setVisibility(View.INVISIBLE);

        buttonPlay = (Button) findViewById(R.id.buttonPlay);
        buttonPlay.setOnClickListener(this);

        buttonStopPlay = (Button) findViewById(R.id.buttonStopPlay);
        buttonStopPlay.setEnabled(false);
        buttonStopPlay.setOnClickListener(this);

    }

    public void onClick(View v) {
        if (v == buttonPlay) {
            startPlaying();
        } else if (v == buttonStopPlay) {
            stopPlaying();
        }
    }

    private void startPlaying() {
        buttonStopPlay.setEnabled(true);
        buttonPlay.setEnabled(false);

        playSeekBar.setVisibility(View.VISIBLE);

        player.prepareAsync();

        player.setOnPreparedListener(new OnPreparedListener() {

            public void onPrepared(MediaPlayer mp) {
                player.start();
            }
        });

    }

    private void stopPlaying() {
        if (player.isPlaying()) {
            player.stop();
            player.release();
            initializeMediaPlayer();
        }

        buttonPlay.setEnabled(true);
        buttonStopPlay.setEnabled(false);
        playSeekBar.setVisibility(View.INVISIBLE);
    }

    private void initializeMediaPlayer() {
        player = new MediaPlayer();
        try {
            player.setDataSource("http://usa8-vn.mixstream.net:8138");
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (IllegalStateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        player.setOnBufferingUpdateListener(new OnBufferingUpdateListener() {

            public void onBufferingUpdate(MediaPlayer mp, int percent) {
                playSeekBar.setSecondaryProgress(percent);
                Log.i("Buffering", "" + percent);
            }
        });
    }

    @Override
    protected void onPause() {
        super.onPause();
        if (player.isPlaying()) {
            player.stop();
        }
    }
}

in the XML (main.xml) code:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:text="Source: (Radio La Chevere)"
        android:layout_marginTop="10dip" android:gravity="center" />
<ProgressBar android:id="@+id/progressBar1"
        android:indeterminateOnly="false" android:progressDrawable="@android:drawable/progress_horizontal"
        android:indeterminateDrawable="@android:drawable/progress_indeterminate_horizontal"
        android:minHeight="20dip" android:maxHeight="20dip"
        android:layout_width="fill_parent" android:layout_height="wrap_content"
        android:layout_marginLeft="20dip" android:layout_marginRight="20dip"
        android:layout_marginTop="10dip"></ProgressBar>
<LinearLayout android:id="@+id/linearLayout1"
        android:layout_height="wrap_content" android:layout_width="match_parent"
        android:layout_marginTop="20dip" android:gravity="center">
        <Button android:text="Play" android:id="@+id/buttonPlay"
                android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>
        <Button android:text="Stop" android:id="@+id/buttonStopPlay"
                android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>
</LinearLayout>
</LinearLayout>

and the android manifest:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="package.your.RadioStream"
  android:versionCode="1"
  android:versionName="1.0">
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.INTERNET"></uses-permission>

<application android:icon="@drawable/icon" android:label="@string/app_name">
    <activity android:name=".myMain"
              android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

</application>

Android Studio Online Radio app(java) from API

Please see onPlayClick which is called on the play button, right now I always change the URL to the radio station which is clicked on just to show you how can you change the URL for media to be played in mediaplayer.
YOu can yourself think of logic to show the `pause' button and updating them according to the song is played.

Right now this snippet is to show you how you can changes the ongoing radio to different when you clicked upon that.

getAdapterPosition(): I am taking leverage of this to know which row's Play button is clicked so that accordingly I can switch to that radio station.

mediaPlayer.prepareAsync(): so that I don't block the main thread.

setOnPreparedListener because we want to start our mediaPlayer when it is done prepared and as we have done it asynchronously we have to listen for the callback to know when to start our media player.

setOnErrorListener to know if there is some error while playing some media, this was helpful as in your case out of 10 stations only 5 or 6 are working and others are throwing error and this callback actually helped me to know why exactly media was not played.

stopPlaying There is mediaPlayer.stop(); and mediaPlayer.reset(); this are to make sure that before new media data is set using mediaPlayer.setDataSource already playing media is stopped and the data is reset.

public class Adapter extends RecyclerView.Adapter<Adapter.ViewHolder> {

// creating a variable for array list and context.
private ArrayList<RadioStation> radioStationArrayList;
private MediaPlayer mediaPlayer;
// creating a constructor for our variables.
public Adapter(ArrayList<RadioStation> radioStationArrayList, Context context) {
    this.radioStationArrayList = radioStationArrayList;
    mediaPlayer = new MediaPlayer();
    mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
}

@NonNull
@Override
public Adapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
    // below line is to inflate our layout.
    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.course_rv_item, parent, false);
    return new ViewHolder(view);
}

@Override
public void onBindViewHolder(@NonNull Adapter.ViewHolder holder, int position) {
    // setting data to our views of recycler view.
    RadioStation modal = radioStationArrayList.get(position);
    holder.name.setText(modal.getName());
    Picasso.get().load(modal.getFavicon()).into(holder.favicon);
}

@Override
public int getItemCount() {
    // returning the size of array list.
    return radioStationArrayList.size();
}

public class ViewHolder extends RecyclerView.ViewHolder {
    // creating variables for our views.
    private TextView name;
    private ImageView favicon;
    private Button play;

    public ViewHolder(@NonNull View itemView) {
        super(itemView);
        name = itemView.findViewById(R.id.idName);
        favicon = itemView.findViewById(R.id.idImg);
        play = itemView.findViewById(R.id.play);
        play.setOnClickListener(view -> onPlayClick());
    }

    public void onPlayClick() {
        stopPlaying();
        startPlaying();
    }

    private void startPlaying() {
        try {
            mediaPlayer.setDataSource(radioStationArrayList.get(getAdapterPosition()).getUrl_resolved());
            mediaPlayer.setOnPreparedListener(mp -> {
                mediaPlayer.start();
                Log.v("DINKAR", "Started");
            });
            mediaPlayer.setOnErrorListener((mp, what, extra) -> {
                Log.e("DINKAR", "Error");
                return false;
            });
            mediaPlayer.prepareAsync();
        } catch (IOException e) {
            Log.e("DINKAR", "failed");
        }
    }

    private void stopPlaying() {
        mediaPlayer.stop();
        mediaPlayer.reset();
    }
}

}

Note: many of the radio stations are having issues MediaPlayer were not able to play those.

I used https://textuploader.com/tsu8j to get your adapter class code and using your screenshot of the app created layout XML file on my own so that I can run the app to test it out before giving you any snippet

Online radio streaming app for Android: where to place Wakelock and Wifilock

These attributes go in the AndroidManifest.xml file. You may need the following for your app to work correctly:

<android:name="android.permission.ACCESS_WIFI_STATE" uses-permission />    
<android:name="android.permission.CHANGE_WIFI_STATE" uses-permission />
<android:name="android.permission.CHANGE_NETWORK_STATE" uses-permission /> 
<android:name="android.permission.INTERNET" uses-permission />
<android:name="android.permission.ACCESS_NETWORK_STATE" uses-permission />

Code in java file for wifi lock.

// obtain wifi lock
wifiLock = ((WifiManager) 

THIS_CONTEXT.getSystemService(THIS_CONTEXT.WIFI_SERVICE)).createWifiLock("clientWifiLock");
wifiLock.acquire();

Do similarly for wake lock.

Making an Android radio station streaming app

The question you asked leads to a broad answer. However here goes some tips for you.

For a streaming radio station you can create a steaming server or buy streaming hosting. There are some free software's available that can be installed in your server and use to produce audio streaming from tracks/audio input.

For free streaming software you can try,

http://www.shoutcast.com/BroadcastNow

http://icecast.org/

If you want to buy a streaming hosting service with pre-installed software like SHOUTcast try this,

http://www.shoutcheap.com/

Once you buy or host a radio station, you can connect to that station using a http://ip_address:port_number using Android MediaPlayer.

Details needed for making an online streaming android app for an internet radio

You should look at this answer There are some code for how to stream a radio link.

I think you want to know which information of your station you need, right?
If you check the answer, there's a streaming link of the internet radio station. Every station has a streaming link like this with a port number (the four number at the end of the link).

This is the basic and simplest internet radio streaming way.

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