I have a toggle button and i need the 'mp' sound to play every second if that button is toggled.The code below is what i tried and it does play the sound every second but the button stops responding so i can't turn it off.
ToggleButton btn = findViewById(R.id.button);
final MediaPlayer mp = MediaPlayer.create(this, R.raw.beat);
btn.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
while (isChecked) {
mp.start();
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
});
Thank you in advance.
Never use Thread.sleep(1000) it is the terrible thing you can do to the app. Your app is not
responsding because you are putting Main thread of app to sleep.
I have created this class for you for desmonstration. you can tweak is further to your needs.
private Handler soundHandler = new Handler();
private int delay = 1000;
private Runnable soundRunnable;
private MediaPlayer mediaPlayer;
private boolean isToggleChecked;
#Override protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ToggleButton toggleButton = findViewById(R.id.button);
mediaPlayer = MediaPlayer.create(this, R.raw.beat);
toggleButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked){
isToggleChecked = isChecked;
if(isChecked){
playSound();
}else {
stopSound();
}
}
});
}
#Override protected void onResume(){
super.onResume();
if(isToggleChecked){
playSound();
}
}
// this will make sure sound stops when app stops or goes in background
#Override
protected void onPause() {
soundHandler.removeCallbacks(soundRunnable);
super.onPause();
}
private void playSound(){
soundHandler.postDelayed(new Runnable() {
public void run() {
soundRunnable = this;
if(mediaPlayer != null) {
mediaPlayer.start();
}
soundHandler.postDelayed(soundRunnable, delay);
}
}, delay);
}
private void stopSound(){
if(mediaPlayer != null){
if(mediaPlayer.isPlaying()){
mediaPlayer.stop();
soundHandler.removeCallbacks(soundRunnable);
}
}
}
I found an answer to another question and modified it to fit my needs and now it works perfectly.Here is the solution/code.
public class MainActivity extends AppCompatActivity {
MediaPlayer mediaPlayer = null;
int delayMillis;
Handler handler;
Runnable runnable;
private boolean isToggleChecked;
private ToggleButton toggleButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toggleButton = findViewById(R.id.button);
handler = new Handler();
runnable = new Runnable() {
#Override
public void run() {
mediaPlayer.start();
}
};
toggleButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
isToggleChecked = true;
toggleMediaPlayer();
}
else {
mediaPlayer.stop();
mediaPlayer.release();
mediaPlayer=null;
handler.removeCallbacks(runnable);
isToggleChecked = false;
}
}
});
}
#Override
public void onResume() {
super.onResume();
if (isToggleChecked) {
toggleButton.setChecked(true);
}
else {
toggleButton.setChecked(false);
}
}
private void toggleMediaPlayer(){
if(mediaPlayer != null){
mediaPlayer.stop();
mediaPlayer.release();
mediaPlayer=null;
handler.removeCallbacks(runnable);
}else{
mediaPlayer = MediaPlayer.create(this, R.raw.beat);
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
mp.start();
}
});
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
delayMillis = 1000;
handler.postDelayed(runnable,delayMillis);
}
});
}
}
}
Related
the app works fine my only problem is I don't want to put a stop button rather I want the default backPress to stop and release MediaPlayer, so I added this:
public void onBackPressed(){
super.onStop();
mediaPlayer.release();
it works 1 time but pressing it again would crash the app
2020-07-10 16:23:54.943 6315-6315/com.example.schoolwork E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.schoolwork, PID: 6315
java.lang.IllegalStateException
at android.media.MediaPlayer.getCurrentPosition(Native Method)
at com.example.schoolwork.play_bidlisiw1.changeSeekbar(play_bidlisiw1.java:63)
at com.example.schoolwork.play_bidlisiw1.access$200(Play_bidlisiw1.java:12)
at com.example.schoolwork.play_bidlisiw1$3.run(play_bidlisiw1.java:69)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7523)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:941)
I am a beginner in coding java and new at using android studio. I am hoping anyone can teach me.
Thank you for your advice.
public class ark_play_bidlisiw1 extends AppCompatActivity implements View.OnClickListener {
private Button btnFor, btnBack, btnPlay;
private SeekBar seekBar;
private MediaPlayer mediaPlayer;
private Runnable runnable;
private Handler handler;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.play_bidlisiw1);
btnPlay = findViewById(R.id.btnPlay);
btnBack = findViewById(R.id.btnBack);
btnFor = findViewById(R.id.btnFor);
handler = new Handler();
seekBar = findViewById(R.id.seekbar);
mediaPlayer = MediaPlayer.create(this, R.raw.bidlisiw1);
btnFor.setOnClickListener(this);
btnBack.setOnClickListener(this);
btnPlay.setOnClickListener(this);
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
seekBar.setMax(mediaPlayer.getDuration());
mediaPlayer.start();
changeSeekbar();
}
});
seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
#Override
public void onProgressChanged(SeekBar seekBar, int i, boolean b) {
if(b){
mediaPlayer.seekTo(i);
}
}
#Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
#Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
}
private void changeSeekbar() {
seekBar.setProgress(mediaPlayer.getCurrentPosition());
if(mediaPlayer.isPlaying()){
runnable = new Runnable() {
#Override
public void run() {
changeSeekbar();
}
};
handler.postDelayed(runnable, 1000);
}
}
#Override
public void onClick(View v) {
switch (v.getId()){
case R.id.btnPlay:
if(mediaPlayer.isPlaying()){
mediaPlayer.pause();
btnPlay.setText(">");
}else {
mediaPlayer.start();
btnPlay.setText("||");
changeSeekbar();
}
break;
case R.id.btnFor:
mediaPlayer.seekTo(mediaPlayer.getCurrentPosition()+5000);
break;
case R.id.btnBack:
mediaPlayer.seekTo(mediaPlayer.getCurrentPosition()-5000);
break;
}
}
public void onBackPressed(){
super.onStop();
mediaPlayer.release();
}
}
public class Options extends AppCompatActivity {
MediaPlayer mediaPlayer;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_options);
mediaPlayer = MediaPlayer.create(getApplicationContext(), R.raw.music01);
}
public void playSong(View view) {
CheckBox musicCheck = findViewById(R.id.musicCheck);
if (musicCheck.isChecked()) {
mediaPlayer.start();
}
else {
mediaPlayer.stop();
}
}
}
When I check the checkbox, the music starts playing and when I uncheck the checkbox, the music stops playing. However, when I check the checkbox again the music does not play.
Add this in onCreate
musicCheck.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (musicCheck.isChecked()) {
mediaPlayer.start();
} else {
mediaPlayer.stop();
}
}
});
I have a Runnable on a UIThread updating a SeekBar while a MediaPlayer is playing. Yet, when I switch to another activity my application crashes with an exception cause the Runnable keeps on forever even after the MediaPlayer has been destroyed.
This is my code:
public class Guide extends AppCompatActivity implements MediaPlayer.OnPreparedListener {
Button back;
private MediaPlayer m_audio_player;
private Handler m_handler_seek_bar = new Handler();
private SeekBar m_seek_bar;
private Runnable m_seek_bar_runnable;
private void set_up_audio(){
m_audio_player = MediaPlayer.create(this, g_audio[NativeLib.get_active_landmark()] );
m_audio_player.setOnPreparedListener(this);
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_guide);
implement_back_button();
set_up_audio();
}
#Override
protected void onStart() {
super.onStart();
set_up_seek_bar();
}
private void set_up_seek_bar() {
m_seek_bar = (SeekBar) findViewById(R.id.seek_bar);
m_seek_bar.setMax(m_audio_player.getDuration());
m_seek_bar_runnable = new Runnable() {
#Override
public void run() {
if(m_audio_player != null ){
m_seek_bar.setProgress(m_audio_player.getCurrentPosition());
}
m_handler_seek_bar.postDelayed(this, 1000);
}
};
// update Seekbar on UI thread
Guide.this.runOnUiThread(m_seek_bar_runnable);
m_seek_bar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
#Override
public void onStopTrackingTouch(SeekBar seekBar) { }
#Override
public void onStartTrackingTouch(SeekBar seekBar) {}
#Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if(m_audio_player != null && fromUser){
m_audio_player.seekTo(progress);
}
}
});
}
#Override
protected void onStop() {
if (debug_mode) Log.d(TAG, "onStop");
if (m_audio_player.isPlaying()) {
m_audio_player.stop();
}
m_audio_player.release();
super.onStop();
findViewById(R.id.activity_guide).removeCallbacks(m_seek_bar_runnable);
}
// return button
private void implement_back_button() {
final Intent intent = new Intent(/* pointing at some other activity */);
back = (Button) findViewById(R.id.back_button);
back.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(intent);
}
});
}
}
You need to use:
m_handler_seek_bar.removeCallbacks(m_seek_bar_runnable);
to remove the runnable from handler
#Override
protected void onStop() {
if (debug_mode) Log.d(TAG, "onStop");
if (m_audio_player.isPlaying()) {
m_audio_player.stop();
}
m_audio_player.release();
m_handler_seek_bar.removeCallbacks(m_seek_bar_runnable);
super.onStop();
}
Alternatively you can override the onPause() method of the activity:
#Override
protected void onPause() {
m_handler_seek_bar.removeCallbacks(m_seek_bar_runnable);
super.onPause();
}
Remove all the callbacks from the Handler in onStop using handler.removeCallbacks
I built a small app which basically vibrates and plays an mp3 file on checking a checkbox, but somehow the music won't stop after unchecking the checkbox:
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Vibrator vibrator = (Vibrator) MainActivity.this.getSystemService(Context.VIBRATOR_SERVICE);
final CheckBox vibrateBoxStrong = (CheckBox) findViewById(R.id.checkPowerStrong);
final Handler handler = new Handler();
final Runnable r = new Runnable() {
public void run() {
vibrator.vibrate(1000);
handler.postDelayed(this, 1000);
}
};
vibrateBoxStrong.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {
MediaPlayer mediaPlayer = MediaPlayer.create(getApplicationContext(), R.raw.fansound1);
if(vibrateBoxStrong.isChecked()) {
handler.postDelayed(r, 100);
mediaPlayer.start();
} else {
mediaPlayer.stop();
handler.removeCallbacks(r);
vibrator.cancel();
}
}
}
);
}
}
For Playing mp3
MediaPlayer mPlayer = MediaPlayer.create(context, R.raw.aaanicholas);
to start
mPlayer.start();
to stop
mPlayer.stop();
In your case use
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Vibrator vibrator = (Vibrator) MainActivity.this.getSystemService(Context.VIBRATOR_SERVICE);
MediaPlayer mPlayer = MediaPlayer.create(context, R.raw.aaanicholas);
Vibrator v = (Vibrator) this.context.getSystemService(Context.VIBRATOR_SERVICE);
final CheckBox vibrateBoxStrong = (CheckBox) findViewById(R.id.checkPowerStrong);
vibrateBoxStrong.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {
MediaPlayer mediaPlayer = MediaPlayer.create(getApplicationContext(), R.raw.fansound1);
if(vibrateBoxStrong.isChecked()) {
v.vibrate(1000); // it will vibrate for 1000 milliseconds
mPlayer.start();
} else {
mPlayer.stop();
vibrator.cancel();
}
}
}
);
}
}
I want to develop media player type of application which has two button one for play and pause and one for stop. I take two image buttons in my layout file and reference it in Java file and code like this which I put here, but when I click on stop button audio is getting stopped but then I want replay audio file; but I cant play with play button.
my Java code below
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.activity_aarti_fragment, container, false);
btnplay=(ImageButton)v.findViewById(R.id.btnplay);
btnstop=(ImageButton)v.findViewById(R.id.btnstop);
seekbar=(SeekBar)v.findViewById(R.id.seekbar);
mp = MediaPlayer.create(getActivity(), R.raw.arti);
btnstop.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
mp.stop();
btnplay.setImageResource(R.drawable.ic_action_play);
Toast.makeText(getActivity(), "Stop",Toast.LENGTH_LONG).show();
}
});
btnplay.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(mp.isPlaying())
{
mp.pause();
btnplay.setImageResource(R.drawable.ic_action_play);
Toast.makeText(getActivity(), "Pause",Toast.LENGTH_SHORT).show();
}
else
{ btnplay.setImageResource(R.drawable.ic_action_pause);
mp.start();
Toast.makeText(getActivity(), "Play",Toast.LENGTH_SHORT).show();
}
}
});
return v;
}
Use This:
private BackgroundSound mBackgroundSound;
private MediaPlayer player;
public class BackgroundSound extends AsyncTask<Void, Void, Void> {
#Override
protected Void doInBackground(Void... params) {
player = MediaPlayer.create(HomePage.this, R.raw.background);
AudioManager audioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
float actualVolume = (float) audioManager
.getStreamVolume(AudioManager.STREAM_MUSIC);
float maxVolume = (float) audioManager
.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
float volume = actualVolume / maxVolume;
player.setLooping(true); // Set looping
player.setVolume(volume, volume);
player.start();
return null;
}
}
For Playing:
mBackgroundSound = new BackgroundSound();
mBackgroundSound.execute();
For Stop:
mBackgroundSound.cancel(true);
if (player != null) {
player.stop();
player.release();
}
For Pause:
if (player != null) {
player.pause();
}
Try this it will help you....
//Click Listener on Image Button with play and Pause method
PLAY.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Play-Pause();
}
});
//Play Pause method...........
public void Play-Pause(){
if (mediaPlayer.isPlaying()) {
PLAY.setImageResource(R.drawable.pause);
mediaPlayer.pause();
} else {
PLAY.setImageResource(R.drawable.play);
mediaPlayer.start();
}
}
Once a media player is stopped, you need to call prepare on it again to get it to a state where you can call start(). Look at the state diagram here http://developer.android.com/reference/android/media/MediaPlayer.html#pause%28%29
Check this code, its better and simple solution !
public class MainActivity extends AppCompatActivity {
MediaPlayer mp;
Switch sw;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mp = MediaPlayer.create(this,R.raw.nokia);
sw = findViewById(R.id.sw);
sw.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
mp.setLooping(true);
}
});
}
public void play(View v){
mp.start();
}
public void pause(View v){
if(mp.isPlaying())
mp.pause();
}
public void stop(View v){
if(mp.isPlaying()) {
boolean loop=mp.isLooping();
mp.stop();
mp = MediaPlayer.create(this, R.raw.nokia);
mp.setLooping(loop);
}
}
}