i use these lines to play some audio file with mediaplayer, both on a service and in an activity, yet there is no sound on my device, what could be the reason? and what should i try to do to understand whats wrong and finally fix that?
MediaPlayer mp = MediaPlayer.create(this, R.raw.alert);
mp.start();
Intent viewMediaIntent = new Intent();
viewMediaIntent.setAction(android.content.Intent.ACTION_VIEW);
File file = new File(objectFilePath);
viewMediaIntent.setDataAndType(Uri.fromFile(file), "audio/*");
viewMediaIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP);
startActivity(viewMediaIntent);
http://developer.android.com/reference/android/media/MediaPlayer.html
Check out the state diagram in the MediaPlayer docs.
After you've created the MediaPlayer it is in the Idle state. As you can see, you need to initialize and prepare it before you call start().
Check the following code, it works fine for me. I hope it will work for you also.....Dont forget to add Audio PlayBack permission in android Manifest File
import android.app.Activity;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnBufferingUpdateListener;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.SeekBar;
public class StreamAudioFromUrlSampleActivity extends Activity implements OnClickListener, OnTouchListener, OnCompletionListener, OnBufferingUpdateListener{
private Button btn_play,
btn_pause,
btn_stop;
private SeekBar seekBar;
private MediaPlayer mediaPlayer;
private int lengthOfAudio;
private final String URL = "http://android.erkutaras.com/media/audio.mp3";
private final Handler handler = new Handler();
private final Runnable r = new Runnable() {
#Override
public void run() {
updateSeekProgress();
}
};
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
init();
}
private void init() {
btn_play = (Button)findViewById(R.id.btn_play);
btn_play.setOnClickListener(this);
btn_pause = (Button)findViewById(R.id.btn_pause);
btn_pause.setOnClickListener(this);
btn_pause.setEnabled(false);
btn_stop = (Button)findViewById(R.id.btn_stop);
btn_stop.setOnClickListener(this);
btn_stop.setEnabled(false);
seekBar = (SeekBar)findViewById(R.id.seekBar);
seekBar.setOnTouchListener(this);
mediaPlayer = new MediaPlayer();
mediaPlayer.setOnBufferingUpdateListener(this);
mediaPlayer.setOnCompletionListener(this);
}
#Override
public void onBufferingUpdate(MediaPlayer mediaPlayer, int percent) {
seekBar.setSecondaryProgress(percent);
}
#Override
public void onCompletion(MediaPlayer mp) {
btn_play.setEnabled(true);
btn_pause.setEnabled(false);
btn_stop.setEnabled(false);
}
#Override
public boolean onTouch(View v, MotionEvent event) {
if (mediaPlayer.isPlaying()) {
SeekBar tmpSeekBar = (SeekBar)v;
mediaPlayer.seekTo((lengthOfAudio / 100) * tmpSeekBar.getProgress() );
}
return false;
}
#Override
public void onClick(View view) {
try {
mediaPlayer.setDataSource(URL);
mediaPlayer.prepare();
lengthOfAudio = mediaPlayer.getDuration();
} catch (Exception e) {
//Log.e("Error", e.getMessage());
}
switch (view.getId()) {
case R.id.btn_play:
playAudio();
break;
case R.id.btn_pause:
pauseAudio();
break;
case R.id.btn_stop:
stopAudio();
break;
default:
break;
}
updateSeekProgress();
}
private void updateSeekProgress() {
if (mediaPlayer.isPlaying()) {
seekBar.setProgress((int)(((float)mediaPlayer.getCurrentPosition() / lengthOfAudio) * 100));
handler.postDelayed(r, 1000);
}
}
private void stopAudio() {
mediaPlayer.stop();
btn_play.setEnabled(true);
btn_pause.setEnabled(false);
btn_stop.setEnabled(false);
seekBar.setProgress(0);
}
private void pauseAudio() {
mediaPlayer.pause();
btn_play.setEnabled(true);
btn_pause.setEnabled(false);
}
private void playAudio() {
mediaPlayer.start();
btn_play.setEnabled(false);
btn_pause.setEnabled(true);
btn_stop.setEnabled(true);
}
}
Related
I wanna make "Play/Stop" button. When button "Play" is clicked, the song must be played and its text should be converted into "Stop" and when "Stop" is clicked, the button text should be changed into "Play" again and song should start again to play from the beginning.
import android.media.MediaPlayer;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import java.io.IOException;
public class MainActivity extends AppCompatActivity {
private Button btn_playStop;
private MediaPlayer mediaPlayer;
private boolean flag = false;
#Override
protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ActionBar actionBar = getSupportActionBar();
actionBar.setTitle("Play Music");
mediaPlayer = MediaPlayer.create(MainActivity.this, R.raw.zara_sa);
btn_playStop = (Button)findViewById(R.id.btn_play_stop);
btn_playStop.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mediaPlayer.isPlaying() && flag==true){
stopSong();
}
else if (flag == false){
playSong();
}
}
});
}
public void playSong(){
mediaPlayer.start();
btn_playStop.setText("Stop");
flag = true;
}
public void stopSong() {
mediaPlayer.stop();
btn_playStop.setText("Play");
flag = false;
}
}
You must call mediaPlayer.prepare(); if you called mediaPlayer.stop(); so in the first time you can just call mediaPlayer.start(); but in the next times you should call mediaPlayer.prepare(); before mediaPlayer.start();
public void playSong(){
try {
mediaPlayer.prepare();
} catch (IOException e) {
}
mediaPlayer.start();
btn_playStop.setText("Stop");
flag = true;
}
import android.app.Activity;
import android.content.Context;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.widget.ImageButton;
import android.widget.RelativeLayout;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
public class pushke extends Activity {
private SeekBar volumeSeekbar = null;
private AudioManager audioManager = null;
MediaPlayer mp;
MediaPlayer mp2;
MediaPlayer mp3;
MediaPlayer mp4;
MediaPlayer mp5;
MediaPlayer mp6;
SeekBar seekGuns;
RelativeLayout rguns;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setVolumeControlStream(AudioManager.STREAM_MUSIC);
setContentView(R.layout.guns);
initControls();
rguns=(RelativeLayout) findViewById(R.id.rguns);
mp=MediaPlayer.create(this, R.raw.hekler);
ImageButton btn1 = (ImageButton) findViewById(R.id.btn1);
btn1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mp2.isPlaying()){
mp2.pause();
mp2.seekTo(0);
}
if (mp3.isPlaying()){
mp3.pause();
mp3.seekTo(0);
}
if (mp4.isPlaying()){
mp4.pause();
mp4.seekTo(0);
}
if (mp5.isPlaying()){
mp5.pause();
mp5.seekTo(0);
}
if (mp6.isPlaying()){
mp6.pause();
mp6.seekTo(0);
}
if (mp.isPlaying()){
mp.pause();
mp.seekTo(0);
}
else{
mp.start();
}
}
});
}
private void initControls()
{
try
{
volumeSeekbar = (SeekBar)findViewById(R.id.seekGuns);
audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
volumeSeekbar.setMax(audioManager
.getStreamMaxVolume(AudioManager.STREAM_MUSIC));
volumeSeekbar.setProgress(audioManager
.getStreamVolume(AudioManager.STREAM_MUSIC));
volumeSeekbar.setOnSeekBarChangeListener(new OnSeekBarChangeListener()
{
#Override
public void onStopTrackingTouch(SeekBar arg0)
{
}
#Override
public void onStartTrackingTouch(SeekBar arg0)
{
}
#Override
public void onProgressChanged(SeekBar arg0, int progress, boolean arg2)
{
audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,
progress, 0);
}
});
}
catch (Exception e)
{
e.printStackTrace();
}
}
#Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_VOLUME_UP)
{
int index = seekGuns.getProgress();
seekGuns.setProgress(index + 1);
return true;
} else if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN)
{
int index = seekGuns.getProgress();
seekGuns.setProgress(index - 1);
return true;
}
return super.onKeyDown(keyCode, event);
}
I am trying to connect hardware buttons to my seekbar so when I click on volume buttons, seekbar which is used for volume, increase-decrease depending on which button I pressed.
I got this code which is supposed to be working, but I have no idea why it's not working in my case, everytime I launch my app on phone as emulator, and use hardware volume button app crashes.
I get this in LoGcat but Ican't figure out how to fix it or where is the problem because eclipse is not showing me any errors.
Here is my logcat: http://i.imgur.com/o4qSvCv.png
This is because you have declared two Seekbar variables.
private SeekBar volumeSeekbar = null;
SeekBar seekGuns;
and in your onKeyDown method you are using seekGuns named variable which is not initialized.
So you have two option.
1) Initialize means find the id for seekguns variable.
2) Use volumeSeekbar instead of seekguns in onKeyDown method.
I have a problem. This is stream player it is playing fine but when I start play, change app and again start player app the stop button is disabled.
If I pressing play again - it start plaing double music and I cannot stop first stream playing.
In short: I need one app and one sound and possibility to stop sound (without double playing)
import com.erkutaras.media.audio.url.R;
import android.app.Activity;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnBufferingUpdateListener;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.SeekBar;
public class StreamAudioFromUrlSampleActivity extends Activity implements OnClickListener, OnTouchListener, OnCompletionListener, OnBufferingUpdateListener{
private Button btn_play,
btn_pause,
btn_stop;
private SeekBar seekBar;
private MediaPlayer mediaPlayer;
private int lengthOfAudio;
private final String URL = "http://play.org.ua:8000/";
private final Handler handler = new Handler();
private final Runnable r = new Runnable() {
#Override
public void run() {
updateSeekProgress();
}
};
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
init();
}
private void init() {
btn_play = (Button)findViewById(R.id.btn_play);
btn_play.setOnClickListener(this);
btn_pause = (Button)findViewById(R.id.btn_pause);
btn_pause.setOnClickListener(this);
btn_pause.setEnabled(false);
btn_stop = (Button)findViewById(R.id.btn_stop);
btn_stop.setOnClickListener(this);
btn_stop.setEnabled(false);
seekBar = (SeekBar)findViewById(R.id.seekBar);
seekBar.setOnTouchListener(this);
mediaPlayer = new MediaPlayer();
mediaPlayer.setOnBufferingUpdateListener(this);
mediaPlayer.setOnCompletionListener(this);
}
#Override
public void onBufferingUpdate(MediaPlayer mediaPlayer, int percent) {
seekBar.setSecondaryProgress(percent);
}
#Override
public void onCompletion(MediaPlayer mp) {
btn_play.setEnabled(true);
btn_pause.setEnabled(false);
btn_stop.setEnabled(false);
}
#Override
public boolean onTouch(View v, MotionEvent event) {
if (mediaPlayer.isPlaying()) {
SeekBar tmpSeekBar = (SeekBar)v;
mediaPlayer.seekTo((lengthOfAudio / 100) * tmpSeekBar.getProgress() );
}
return false;
}
#Override
public void onClick(View view) {
try {
mediaPlayer.setDataSource(URL);
mediaPlayer.prepare();
lengthOfAudio = mediaPlayer.getDuration();
} catch (Exception e) {
//Log.e("Error", e.getMessage());
}
switch (view.getId()) {
case R.id.btn_play:
playAudio();
break;
case R.id.btn_pause:
pauseAudio();
break;
case R.id.btn_stop:
stopAudio();
break;
default:
break;
}
updateSeekProgress();
}
private void updateSeekProgress() {
if (mediaPlayer.isPlaying()) {
seekBar.setProgress((int)(((float)mediaPlayer.getCurrentPosition() / lengthOfAudio) * 100));
handler.postDelayed(r, 1000);
}
}
private void stopAudio() {
mediaPlayer.stop();
btn_play.setEnabled(true);
btn_pause.setEnabled(false);
btn_stop.setEnabled(false);
seekBar.setProgress(0);
}
private void pauseAudio() {
mediaPlayer.pause();
btn_play.setEnabled(true);
btn_pause.setEnabled(false);
}
private void playAudio() {
mediaPlayer.start();
btn_play.setEnabled(false);
btn_pause.setEnabled(true);
btn_stop.setEnabled(true);
}
}
In your OnClick() method add if:
if (mediaPlayer.isPlaying())
{
//mediaPlayer.pause; //or what you want instead double play
}
else
{
//your code
}
I'm not sure why I get error on the handler. The codes work until when I add in the handler to control the seekbar, it will prompt error.
package com.voice.recording.v3;
import android.app.Activity;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
public class VoiceRecordingPlaybackv3Activity extends Activity implements OnCompletionListener,
OnTouchListener, OnClickListener, OnSeekBarChangeListener {
MediaPlayer mediaPlayer;
View theView;
Button stopButton, startButton, quitButton;
SeekBar seekBar;
Handler handler;
int position = 0;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
stopButton = (Button)this.findViewById(R.id.StopButton);
startButton = (Button)this.findViewById(R.id.StartButton);
quitButton = (Button)this.findViewById(R.id.quitButton);
startButton.setOnClickListener(this);
stopButton.setOnClickListener(this);
quitButton.setOnClickListener(this);
theView = this.findViewById(R.id.theview);
theView.setOnTouchListener(this);
mediaPlayer = MediaPlayer.create(this, R.raw.goodmorningandroid);
mediaPlayer.setOnCompletionListener(this);
seekBar = (SeekBar) findViewById(R.id.seekBar1);
seekBar.setOnSeekBarChangeListener(this);
seekBar.setMax(mediaPlayer.getDuration());
}
public void onCompletion(MediaPlayer mp){
mediaPlayer.start();
mediaPlayer.seekTo(position);
}
public boolean onTouch(View v, MotionEvent me){
if(me.getAction() == MotionEvent.ACTION_MOVE){
if(mediaPlayer.isPlaying()){
position = (int)(me.getX()*
mediaPlayer.getDuration()/theView.getWidth());
Log.v("SEEK",""+position);
mediaPlayer.seekTo(position);
}
}
return true;
}
public void onClick(View v){
if(v == stopButton){
mediaPlayer.pause();
}else if(v == startButton){
try{
mediaPlayer.start();
startPlayProgressUpdater();
}catch(IllegalStateException e){
mediaPlayer.pause();
}
}else if(v == quitButton ){
mediaPlayer.stop();
mediaPlayer.release();
}
}
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
}
public void onStartTrackingTouch(SeekBar seekBar) {
}
public void onStopTrackingTouch(SeekBar seekBar) {
seekBar.setSecondaryProgress(seekBar.getProgress());
}
public void startPlayProgressUpdater() {
seekBar.setProgress(mediaPlayer.getCurrentPosition());
if (mediaPlayer.isPlaying()) {
Runnable notification = new Runnable() {
public void run() {
startPlayProgressUpdater();
}
};
handler.postDelayed(notification,100);
}else{
mediaPlayer.pause();
seekBar.setProgress(0);
}
}
}
The error I get is NullPointerException, can anyone please point out my mistaken
Your code shows handler is defined by not initialized. Please post stacktrace if that's not the problem.
I am play a mp3 file from url containing a https protocol extention , I get a mediaplayer failed to prepare exception but when i use a http protocol the code runs fine
/**
import com.erkutaras.media.audio.url.R;
import android.app.Activity;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnBufferingUpdateListener;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.SeekBar;
public class StreamAudioFromUrlSampleActivity extends Activity implements OnClickListener, OnTouchListener, OnCompletionListener, OnBufferingUpdateListener{
private Button btn_play,
btn_pause,
btn_stop;
private SeekBar seekBar;
private MediaPlayer mediaPlayer;
private int lengthOfAudio;
// private final String URL = "http://android.erkutaras.com/media/audio.mp3";
private final String URL = "https://icanbeanything.com/en/Fearless/afraid-of-change.mp3";
private final Handler handler = new Handler();
private final Runnable r = new Runnable() {
#Override
public void run() {
updateSeekProgress();
}
};
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
init();
}
private void init() {
btn_play = (Button)findViewById(R.id.btn_play);
btn_play.setOnClickListener(this);
btn_pause = (Button)findViewById(R.id.btn_pause);
btn_pause.setOnClickListener(this);
btn_pause.setEnabled(false);
btn_stop = (Button)findViewById(R.id.btn_stop);
btn_stop.setOnClickListener(this);
btn_stop.setEnabled(false);
seekBar = (SeekBar)findViewById(R.id.seekBar);
seekBar.setOnTouchListener(this);
mediaPlayer = new MediaPlayer();
mediaPlayer.setOnBufferingUpdateListener(this);
mediaPlayer.setOnCompletionListener(this);
}
#Override
public void onBufferingUpdate(MediaPlayer mediaPlayer, int percent) {
seekBar.setSecondaryProgress(percent);
}
#Override
public void onCompletion(MediaPlayer mp) {
btn_play.setEnabled(true);
btn_pause.setEnabled(false);
btn_stop.setEnabled(false);
}
#Override
public boolean onTouch(View v, MotionEvent event) {
if (mediaPlayer.isPlaying()) {
SeekBar tmpSeekBar = (SeekBar)v;
mediaPlayer.seekTo((lengthOfAudio / 100) * tmpSeekBar.getProgress() );
}
return false;
}
#Override
public void onClick(View view) {
try {
mediaPlayer.setDataSource(URL);
mediaPlayer.prepare();
lengthOfAudio = mediaPlayer.getDuration();
} catch (Exception e) {
Log.e("Error", e.getMessage());
}
switch (view.getId()) {
case R.id.btn_play:
playAudio();
break;
case R.id.btn_pause:
pauseAudio();
break;
case R.id.btn_stop:
stopAudio();
break;
default:
break;
}
updateSeekProgress();
}
private void updateSeekProgress() {
if (mediaPlayer.isPlaying()) {
seekBar.setProgress((int)(((float)mediaPlayer.getCurrentPosition() / lengthOfAudio) * 100));
handler.postDelayed(r, 1000);
}
}
private void stopAudio() {
mediaPlayer.stop();
btn_play.setEnabled(true);
btn_pause.setEnabled(false);
btn_stop.setEnabled(false);
seekBar.setProgress(0);
}
private void pauseAudio() {
mediaPlayer.pause();
btn_play.setEnabled(true);
btn_pause.setEnabled(false);
}
private void playAudio() {
mediaPlayer.start();
btn_play.setEnabled(false);
btn_pause.setEnabled(true);
btn_stop.setEnabled(true);
}
}
/////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
*/
If you developing on before Android 3.1
HTTPS is not supported before Android 3.1.
See this link
Android Supported Media Formats