player.setDataSource(URL); giving error

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I have the code below that opens a URL of Streaming of a web radio and plays/pauses her.

Got and bugs in this código I don’t think so and I ask for your help.

package carcleo.com.player;

import android.media.MediaPlayer;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import java.io.IOException;

public class player extends AppCompatActivity {

    private MediaPlayer player;
    private String URL;
    private Button btnPlayPause;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.player);

        URL               = "rtsp://cdn-the-2.musicradio.com:80/LiveAudio/Capital";
        btnPlayPause      = (Button)  findViewById(R.id.btnPlayPause);

        btnPlayPause.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                try {
                    btnPlayPause.setText("Carregando...");
                    if (player == null) player = new MediaPlayer();
                    tocaPausa();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        });

    }

    private void tocaPausa () throws IOException {

        if (!player.isPlaying()) {

            player.setDataSource(URL);

            player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                @Override
                public void onCompletion(MediaPlayer mediaPlayer) {
                    mediaPlayer.stop();
                    mediaPlayer.reset();
                }
            });

            player.prepare();
            player.start();
            btnPlayPause.setText("Pausar");

        } else {

            player.pause();
            btnPlayPause.setText("Tocar");

        }
    }
}

The 2 problems are:

A) No onCreate have the setOnClickListener button that tries to change its text. It simply does not work, the text does not change, but the line below is executed normally.

    btnPlayPause.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            try {
                btnPlayPause.setText("Carregando...");
                if (player == null) player = new MediaPlayer();
                tocaPausa();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    });

I tried to put

btnPlayPause.setText("Carregando...");

inside:

    player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
        @Override
        public void onCompletion(MediaPlayer mediaPlayer) {

            btnPlayPause.setText("Carregando...");
            mediaPlayer.stop();
            mediaPlayer.reset();
        }
    });

but it turned out the same.

B) Well, it’s harder here. When I open the player, I click the button and after about 12 seconds the radio starts playing, when I click the button again, the radio is paused normally. But when I click again to touch again, it gives error in line 43 inside the method tocaPausa().

player.setDataSource(URL);

That is the error:

D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
    Process: carcleo.com.player, PID: 365
    java.lang.IllegalStateException
        at android.media.MediaPlayer.nativeSetDataSource(Native Method)
        at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1078)
        at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1039)
        at carcleo.com.player.player.tocaPausa(player.java:43)
        at carcleo.com.player.player.access$200(player.java:10)
        at carcleo.com.player.player$1.onClick(player.java:30)
        at android.view.View.performClick(View.java:5640)
        at android.view.View$PerformClick.run(View.java:22455)
        at android.os.Handler.handleCallback(Handler.java:751)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:154)
        at android.app.ActivityThread.main(ActivityThread.java:6165)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:888)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:778)
java android android-studio
  • 1

    According to the documentation android this error occurs when the file indicated in setDataSource does not exist, checks whether the url is correct. Another thing is that you may need to inform the setAudioStreamType.

  • 1

    as I said, when clicking the button for the first time, the radio plays normally, it leads me to believe that the url is ok.

  • 1

    puts a log in the if another in the else of his tocaPausa, I think the second time he’s been through else because I believe this is still true player.isPlaying() because you just gave pause.

  • 1

    If that’s the case to play again after one pause you need to call the function start.

  • 1

    passed the first block even. so much that it stuck in the line of the URL. I did the Log test here

  • Then try to store something indicating that it is in pause, and within its function tocaPausa if you are in pause just call the start to see if it works.

  • another option is to give instead pause call for mediaPlayer.stop(); mediaPlayer.reset();

  • 1

    discovered! note that every time I click play again, the player needs to be created again. there is the error

  • added if (player != null) { player.reset(); player.release(); player = null; } at the end

  • but it brought me another problem, the shipment needs to be done again.

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