I have retrieved the songs present on my phone and when I click on the list item it switches to the next activity and plays the song.
But when I go back to my playlist and click again on another song, the previous song is still being played as well as the song I just clicked.
Here is the code of Playlist.java:
package com.example.padyplayer;
import java.io.IOException;
import java.util.ArrayList;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class Playlist extends Activity implements OnItemClickListener {
ListView tracks_view;
ArrayList<String> songs;
ArrayAdapter<String> songs_items;
//MediaPlayer mediaplayer;
//AudioManager audiomanager;
Cursor cursor;
Uri uri;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_playlist);
tracks_view = (ListView) findViewById(R.id.tracks);
generate_Playlist();
songs_items = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, songs);
//mediaplayer = new MediaPlayer();
//audiomanager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
tracks_view.setAdapter(songs_items);
tracks_view.setOnItemClickListener(this);
}
#SuppressWarnings("deprecation")
private void generate_Playlist() {
// TODO Auto-generated method stub
uri = android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
String projection[] = { android.provider.MediaStore.Audio.Media.DATA,
android.provider.MediaStore.Audio.Media.TITLE,
android.provider.MediaStore.Audio.Media.ARTIST,
android.provider.MediaStore.Audio.Media.ALBUM,
android.provider.MediaStore.Audio.Media.DURATION };
cursor=this.managedQuery(uri, projection, null, null, null);
songs=new ArrayList<String>();
while(cursor.moveToNext())
{
songs.add(cursor.getString(1));
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.playlist, menu);
return true;
}
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long id) {
// TODO Auto-generated method stub
//cursor.moveToPosition(position);
int index1=position;
Intent i=new Intent(getApplicationContext(),Controls.class);
i.putExtra("index", index1);
startActivity(i);
}
}
Here is the second class Controls.java:
package com.example.padyplayer;
import java.io.IOException;
import java.util.ArrayList;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.app.Activity;
import android.content.Context;
import android.database.Cursor;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class Controls extends Activity implements OnClickListener {
TextView song_view,artist_view;
Button play,next,back;
MediaPlayer mediaplayer=new MediaPlayer();
AudioManager audiomanager;
ArrayList<String> songs;
Cursor cursor;
Uri uri;
private int index=0;
//ArrayAdapter<String> song_items;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_controls);
play=(Button)findViewById(R.id.play);
next=(Button)findViewById(R.id.next);
back=(Button)findViewById(R.id.back);
play.setOnClickListener(this);
next.setOnClickListener(this);
back.setOnClickListener(this);
//mediaplayer=new MediaPlayer();
audiomanager=(AudioManager)getSystemService(Context.AUDIO_SERVICE);
getMusic();
Bundle b=getIntent().getExtras();
index = b.getInt("index");
playSong(index);
}
#SuppressWarnings("deprecation")
private void getMusic() {
// TODO Auto-generated method stub
uri=android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
String projection[]={android.provider.MediaStore.Audio.Media.DATA,
android.provider.MediaStore.Audio.Media.TITLE,
android.provider.MediaStore.Audio.Media.ARTIST,
android.provider.MediaStore.Audio.Media.ALBUM,
android.provider.MediaStore.Audio.Media.DURATION};
cursor=this.managedQuery(uri, projection, null, null,null);
songs=new ArrayList<String>();
while (cursor.moveToNext()) {
songs.add(cursor.getString(1));
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.controls, menu);
return true;
}
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.play:
if(mediaplayer.isPlaying())
{
mediaplayer.pause();
play.setText("play");
}
else if(mediaplayer!=null)
{
mediaplayer.start();
play.setText("pause");
}
break;
case R.id.next:
if(index<(songs.size()-1)){
index+=1;
playSong(index);
}
else
{
index=0;
playSong(index);
}
break;
case R.id.back:
if(index>0){
index-=1;
playSong(index);
}
else
{
index=songs.size()-1;
playSong(index);
}
break;
default:
break;
}
//
}
private void playSong(int index2) {
// TODO Auto-generated method stub
cursor.moveToPosition(index2);
int song_id=cursor.getColumnIndex(MediaStore.Audio.Media.DATA);
String song_name=cursor.getString(song_id);
try {
mediaplayer.reset();
mediaplayer.setDataSource(song_name);
mediaplayer.prepare();
mediaplayer.start();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
I'm stuck with this problem since two days. Please help.
My advice: use a Service to host the MediaPlayer and have your Activities communicate with the Service to play and stop songs. Don't forget to call release on the MediaPlayer when you are done (if you use a new player for the next song).
Edit:
The Activity is not going to be the same instance each time it opens, and you create a new MediaPlayer each time an instance of the Activity is created. Underneath the hood, there is a native object actually playing the music that is not intrinsically tied to the life cycle of the Activity, and you aren't calling stop or pause anywhere that would get called when Activities are changed. You could potentially stop and release the MediaPlayer in an appropriate callback (onPause or onDestroy), but that will prevent you from playing music continuously. If you insist on using an Activity to host the MediaPlayer, then music playback has to be completely integrated into the life cycle of the Activity. When the Activity is changed, you need to stop and release its resources explicitly. If you put it in a Service, you won't have that limitation. You can manage one or more MediaPlayers (note the setNextMediaPlayer method) without them being tied to any particular Activity.
it will keep playing. You need to free your media player object when you press back button. In onPause(), release your media player object otherwise it will keep playing.
To implement music player, you can refer open source code. Refer VLC player source code.
before start playing song every time mMediaPlayer.reset() from that you can play new song every time or check if mediaplayer is playing or not if playing stop it
Related
I am trying to play an audio file from the internal storage.
The code I used is..
package com.abhi.firstapp.firstapp;
import android.content.Context;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
import java.io.File;
import java.io.IOException;
import java.net.URI;
public class MainActivity extends AppCompatActivity {
MediaPlayer mp;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
File f= new File("/sdcard/a.mp3");
if(f.exists())
{
Toast toast= Toast.makeText(this, "file exists", Toast.LENGTH_LONG);
toast.show();
Log.d("uri","1");
Uri uri= Uri.fromFile(f);
Log.d("uri", "2");
mp= new MediaPlayer();
mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
Log.d("uri", "3");
try {
mp.setDataSource("/sdcard/a.mp3");
} catch (IOException e) {
e.printStackTrace();
}
//mp.setDataSource(getBaseContext(), uri);
Log.d("uri", "4");
try {
mp.prepare();
} catch (IOException e) {
e.printStackTrace();
Log.d("uri", "IOException");
}
mp.start();
}
else {
Toast toast1 = Toast.makeText(this, "file does not exist", Toast.LENGTH_LONG);
toast1.show();
}
//MediaPlayer mp= MediaPlayer.create(getBaseContext(), uri);
//mp.start();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
By using the log, I can determine that this code is running till the mp.prepare(mediaplayer prepare). And on this step, it gives the error Illegal State Exception
Caused by: java.lang.IllegalStateException
at android.media.MediaPlayer.prepare(Native Method)
Please Help!
There are a couple of things you might want to change.
First: mp.prepare() will block your main thread, which is forbidden and will result in an exception where Android will close your app. To prevent this, mp.prepareAsync was designed. Use that method instead and implement both an onPreparedListener and an onErrorListener.
Second: you should provide a datasource before you call prepare().
You could do this for example this way:
public class MainActivity extends AppCompatActivity implements MediaPlayer.OnPreparedListener, MediaPlayer.OnErrorListener {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
...
MediaPlayer mp = new MediaPlayer();
mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
try {
mediaPlayer.setDataSource(streamURL);
} catch (IOException e) {
// Error, do something
}
mp.prepareAsync();
...
}
#Override
public void onPrepared(MediaPlayer player) {
mediaPlayer.start();
}
...
}
I had the same problem. It can be raised because MediaPlayer is already prepared. When you create a new MediaPlayer by MediaPlayer mp = MediaPlayer.create(getContext(),someUri); mp prepares automatically so you should not prepare it by yourself.
I am new bee to android. I have some about 120 audio files, which I want to store in database and then on different button clicks the audio files will retrieve which I want to play. I don't know how to do this. I have searched several links but unable to find help. I have little knowledge of SQLite database, any help will be appreciated.
here is my code , I have now only one audio file saved in assets folder.
If this can help.
import java.io.IOException;
import android.app.Activity;
import android.content.res.AssetFileDescriptor;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MyButtonsActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final MediaPlayer mp = new MediaPlayer();
Button c = (Button)findViewById(R.id.btnstop);
Button b = (Button)findViewById(R.id.btnplay);
c.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
if(mp.isPlaying())
{
mp.stop();
}
}
});
b.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
try {
mp.reset();
AssetFileDescriptor afd;
afd = getAssets().openFd("audio/001s-ff.mp3");
mp.setDataSource(afd.getFileDescriptor(),afd.getStartOffset(),afd.getLength());
mp.prepare();
mp.start();
}
catch (IllegalStateException e)
{
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
});
}
}
One thing more , where should I save my 100+ audio files? In assets folder manually or in database? which way will be more light in size?
I've created an app (radio streaming) but doesn't works on S4.
I've tested this app on my Galaxy Nexus, Xperia Arc s, Htc Desire and it works properly.
I think there is an error in my code.
My code:
package com.dieesoft.radiolluvia;
import java.io.IOException;
import android.R.array;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.media.MediaPlayer.TrackInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.app.ProgressDialog;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ProgressBar;
import android.widget.Toast;
public class MainActivity extends Activity implements OnClickListener {
private MediaPlayer mp;
private ProgressDialog pb;
private Button bplay;
private Button bstop;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
bplay = (Button) findViewById(R.id.button1);
bstop = (Button) findViewById(R.id.button2);
mp = new MediaPlayer();
mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
bplay.setOnClickListener(this);
bstop.setOnClickListener(this);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(v.getId() == R.id.button1 )
{
//button play
new iniciarStreaming().execute();
Toast.makeText(this, "Play", Toast.LENGTH_SHORT).show();
}
else if(v.getId() == R.id.button2)
{
//button stop
Toast.makeText(this, "Stop", Toast.LENGTH_SHORT).show();
mp.stop();
}
}
private class iniciarStreaming extends AsyncTask<Void, Void, Boolean> implements OnPreparedListener
{
#Override
protected Boolean doInBackground(Void... params) {
// TODO Auto-generated method stub
try {
mp.setDataSource("http://makrodigital.com:8134/radiolluvia");
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
mp.prepareAsync();
mp.setOnPreparedListener(this);
return null;
}
protected void onPreExecute() {
// TODO Auto-generated method stub
pb = new ProgressDialog(MainActivity.this);
pb.setMessage("Buffering...");
pb.show();
}
#Override
public void onPrepared(MediaPlayer mp) {
// TODO Auto-generated method stub
if (pb.isShowing()) {
pb.cancel();
}
mp.start();
}
}
Your streaming url (http://makrodigital.com:8134/radiolluvia) has AAC format with content-type: audio/aacp.
But audio/aacp streaming is not supported directly. Maybe previously was another link? MP3 or something else?
For playing this url you can use this library:
http://code.google.com/p/aacplayer-android/
I'm new to android and I need it for a project I'm working on. I need it to play a sound by clicking a button. I followed online tutorials but my code does not play sounds at all and I'm getting an error on MediaPlayer Error(-19,0). I've tried a lot of the fixes I saw here and I can't seem to make it work. Any help? Here's the code
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
public class MainActivity extends Activity {
MediaPlayer player;
#Override
protected void onCreate(Bundle savedInstanceState) {
try {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
AudioManager audioManager = (AudioManager) getSystemService(MainActivity.AUDIO_SERVICE);
audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, 20, 0);
Button buttonHello = (Button) findViewById(R.id.button1);
buttonHello.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
MediaPlayer mp = Medi aPlayer.create(MainActivity.this, R.raw.button);
mp.start();
mp.setOnCompletionListener(new OnCompletion Listener() {
public void onCompletion(MediaPlayer mp) {
mp.release();
};
});
}
});
} catch (Exception e) {
System.out.println("Error!");
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
This links http://marakana.com/forums/android/examples/59.html has the great example to use MediaPlayer class to play song from raw folder.
To play song from files in the memory you can use the following code.
MediaPlayer mp = new MediaPlayer();
mp.reset();
ContentValues values = new ContentValues();
values.put(MediaStore.Images.Media.DATA, filename.getAbsolutePath());
Uri selectedImage=RingtoneDownload.this.getContentResolver().insert(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
try {
mp.setDataSource(RingtoneDownload.this,selectedImage);
mp.prepare();
mp.start();
}catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
This code is working for me while set the source from file.
new android dev hopeful here. I've been attempting to implement an app that, upon holding down the "ok" button, it will play the default ringtone in a loop.
What I have so far
package com.tick.helloAndroid;
import net.technologichron.android.control.NumberPicker;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.content.Intent;
import android.media.MediaPlayer;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Bundle;
//import android.widget.TextView;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.Toast;
public class main extends Activity implements OnTouchListener {
private int REQUEST_ENABLE_BT = 1;
private MediaPlayer mp;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Set up the window layout
setContentView(R.layout.main);
final Button zero = (Button) this.findViewById(R.id.ok);
zero.setOnTouchListener(this);
Uri alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE);
mp.setDataSource(this, alert);
}
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
mp.setLooping(true);
mp.start();
case MotionEvent.ACTION_UP:
mp.pause();
}
return true;
}
}
From doing some searching on SO, this seems to work for some people, however, the line
mp.setDataSource(this, alert);
seems to not work. By not work, I mean that it forces an "Unhandled Exception Error", which upon doing a try-catch statement,
try {
mp.setDataSource(this, alert);
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
Toast.makeText(this, "args", Toast.LENGTH_LONG).show();
finish();
return;
} catch (SecurityException e) {
// TODO Auto-generated catch block
Toast.makeText(this, "sec", Toast.LENGTH_LONG).show();
finish();
return;
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
Toast.makeText(this, "illega", Toast.LENGTH_LONG).show();
finish();
return;
} catch (IOException e) {
// TODO Auto-generated catch block
Toast.makeText(this, "io", Toast.LENGTH_LONG).show();
finish();
return;
}
compiles without any error but crashes when I try to run the app on the android emulator, it does not print any of the above catches' strings.
Any thoughts and ideas about what I have done incorrectly will be most appreciated.
edit: could it be from the fact that the emu does not have a ringtone?
forgot to instantiate mp....hahahahha