无法在启动方法android上播放流媒体

Question

我是安卓平台的应用程序开发人员。现在我想当应用程序开始自动播放流媒体中的音乐时，不幸的是，我不能这样做，我有一个条件，检查背景音乐是否存在，但这不起作用，因为应用程序开始流媒体播放音乐，但当我想停止它时，它会同时启动音乐和流媒体。

playStop = findViewById(R.id.playStopBtn);
nowPlaying = findViewById(R.id.radioStationNowPlaying);
nowPlaying.setTypeface(dorcic);
setIsPlaying(false);
processPhoneListenerPermission();
broadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
TelephonyManager tm = (TelephonyManager) context.getSystemService(Service.TELEPHONY_SERVICE);
if (tm != null) {
if (tm.getCallState() == TelephonyManager.CALL_STATE_RINGING) {
if (getIsPlaying()) {
stop();
}
}
}
}
};
IntentFilter filter = new IntentFilter();
filter.addAction("android.intent.action.PHONE_STATE");
registerReceiver(broadcastReceiver, filter);
loadNowPlaying();
playStop.setOnClickListener(view -> {
if (isNetworkAvailable()) {
if (getIsPlaying()) {
stop();
} else {
play();
}
} else {
Toast.makeText(getApplicationContext(), "No internet", Toast.LENGTH_LONG).show();
}
});
}


private void loadNowPlaying() {
Thread t = new Thread() {
public void run() {
try {
while (!isInterrupted()) {
runOnUiThread(() -> reloadShoutCastInfo());
Thread.sleep(20000);
}
} catch (InterruptedException ignored) {
}
}
};
t.start();
}
private void reloadShoutCastInfo() {
if (isNetworkAvailable()) {
AsyncTaskRunner runner = new AsyncTaskRunner();
runner.execute();
}
}
@SuppressLint("StaticFieldLeak")
private class AsyncTaskRunner extends AsyncTask<String, String, String> {
@Override
protected String doInBackground(String... params) {
FFmpegMediaMetadataRetriever mmr = new FFmpegMediaMetadataRetriever();
mmr.setDataSource(STREAMING_URL);
nowPlayingData = mmr.extractMetadata(FFmpegMediaMetadataRetriever.METADATA_KEY_ICY_METADATA).replaceAll("StreamTitle", "").replaceAll("[=,';]+", "");
mmr.release();
return null;
}
@Override
protected void onPostExecute(String result) {
nowPlaying.setText(nowPlayingData);
}
}
private void processPhoneListenerPermission() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
requestPermissions(new String[]{Manifest.permission.READ_PHONE_STATE}, 121);
}
}
public boolean isNetworkAvailable() {
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = null;
if (cm != null) {
networkInfo = cm.getActiveNetworkInfo();
}
return networkInfo != null && networkInfo.isConnectedOrConnecting();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
if (requestCode == 121) {
if (!(grantResults[0] == PackageManager.PERMISSION_GRANTED)) {
Toast.makeText(getApplicationContext(), "Permission not granted.nWe can't pause music when phone ringing.", Toast.LENGTH_LONG).show();
}
}
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
@Override
public void onBackPressed()
{
Toast.makeText(MainActivity.this,"לחצו על כפתור הבית לשמיעת הרדיו ברקע", Toast.LENGTH_LONG).show();
}
private void setIsPlaying(boolean status) {
SharedPreferences.Editor editor = getApplicationContext().getSharedPreferences("isPlaying", MODE_PRIVATE).edit();
editor.putBoolean("isPlaying", status);
editor.apply();
}
private boolean getIsPlaying() {
SharedPreferences prefs = getApplicationContext().getSharedPreferences("isPlaying", MODE_PRIVATE);
return prefs.getBoolean("isPlaying", false);
}
private void play() {
setIsPlaying(true);
Intent servicePlayIntent = new Intent(this, MyService.class);
servicePlayIntent.putExtra("playStop", "play");
startService(servicePlayIntent);
playStop.setImageResource(R.drawable.ic_pause);
Toast.makeText(getApplicationContext(), "מתנגן...", Toast.LENGTH_LONG).show();
}
private void stop() {
setIsPlaying(false);
Intent serviceStopIntent = new Intent(this, MyService.class);
serviceStopIntent.putExtra("playStop", "stop");
startService(serviceStopIntent);
playStop.setImageResource(R.drawable.ic_play);
Toast.makeText(getApplicationContext(), "עוצר...", Toast.LENGTH_LONG).show();
}
@Override
protected void onStop() {
super.onStop();
}
@Override
protected void onStart() {
play();
super.onStart();
}
@Override
protected void onDestroy() {
stopService(new Intent(getApplicationContext(), MyService.class));
unregisterReceiver(broadcastReceiver);
finish();
super.onDestroy();
}

}

Answer 1

尝试定义这个：

线程t=新线程((

作为整个类的varabile，而不仅仅是内部方法

这样就可以了