Trouble with Service and startForeground() - Android Q&A, Help & Troubleshooting

I have trouble creating a service for a mediaplayer. I would like to have startforeground instead of this as well. But I have no proof of my service running. So I dont know if my code actually works. Can someone help me?
If someone is able to help me completely setting up my service, I may pay €5-10. I received €50 from the company to set up a developer account. So I have €25 left.
I am creating a streaming app for a radio station to listen to the internet stream.
Code:
package jonashendrickx.radioplayer.rgrfm;
import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;
public class RadioService extends Service {
private final IBinder mBinder = new RadioBinder();
@Override
public void onCreate() {
Toast.makeText(this, "Let's Go", Toast.LENGTH_SHORT).show();
}
@Override
public IBinder onBind(Intent arg0) {
Log.e("LocalService", "Launched");
return mBinder;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.i("LocalService", "Received start id " + startId + ": " + intent);
return START_STICKY;
}
public class RadioBinder extends Binder {
RadioService getService() {
return RadioService.this;
}
}
}
Code:
package jonashendrickx.radioplayer.rgrfm;
import android.os.Bundle;
import android.os.IBinder;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.util.Log;
import android.view.Menu;
public class MainActivity extends Activity {
private ServiceConnection mConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName className, IBinder service) {
mRadioService = ((RadioService.RadioBinder)service).getService();
}
@Override
public void onServiceDisconnected(ComponentName className) {
mRadioService = null;
}
};
private RadioService mRadioService;
private boolean mIsBound;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
doBindService();
}
@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
protected void onDestroy() {
super.onDestroy();
doUnbindService();
}
void doBindService() {
bindService(new Intent(this, RadioService.class), mConnection, Context.BIND_AUTO_CREATE);
mIsBound = true;
Log.e("", "service started");
}
void doUnbindService() {
if (mIsBound) {
// Detach our existing connection.
unbindService(mConnection);
mIsBound = false;
}
}
}

Related

[Q] BroadcastReceiver question

The first version of a small program. MyBroadcastReceiver is invoked by sendBroadcast(new Intent(MyBroadcastReceiver.ACTION)). It works.
Code:
package com.example.broadcast;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class MyActivity extends Activity
{
private final BroadcastReceiver mBroadcastReceiver = new MyBroadcastReceiver();
private class MyBroadcastReceiver extends BroadcastReceiver
{
public static final String ACTION = "com.example.broadcast.MyBroadcastReceiver.ACTION";
@Override
public void onReceive(Context context, Intent intent)
{
Toast.makeText(context, "onReceive() fired", Toast.LENGTH_SHORT).show();
}
};
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
registerReceiver(mBroadcastReceiver, new IntentFilter(MyBroadcastReceiver.ACTION));
((Button)findViewById(R.id.testButton)).setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
sendBroadcast(new Intent(MyBroadcastReceiver.ACTION));
}
});
}
@Override
protected void onDestroy()
{
unregisterReceiver(mBroadcastReceiver);
super.onDestroy();
}
}
The second version of the same program. Now MyBroadcastReceiver is invoked by sendBroadcast(new Intent(MyActivity.this, MyBroadcastReceiver.class)) and IntentFilter in call to registerReceiver() is empty. It doesn't work. Why? And what do I have to change to make it work?
Code:
public class MyActivity extends Activity
{
private final BroadcastReceiver mBroadcastReceiver = new MyBroadcastReceiver();
private class MyBroadcastReceiver extends BroadcastReceiver
{
@Override
public void onReceive(Context context, Intent intent)
{
Toast.makeText(context, "onReceive() fired", Toast.LENGTH_SHORT).show();
}
};
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
registerReceiver(mBroadcastReceiver, new IntentFilter());
((Button)findViewById(R.id.testButton)).setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
sendBroadcast(new Intent(MyActivity.this, MyBroadcastReceiver.class));
}
});
}
@Override
protected void onDestroy()
{
unregisterReceiver(mBroadcastReceiver);
super.onDestroy();
}
}

[Q]ERROR: Void is an invalid type for the variable

I just started developing apps and I've come across the error: Void is an invalid type for the variable button1Click. I got the error on the following line of code
public void button1Click; {
It's in my java class, I'm trying to open an activity from another. This is my entire code looks like this
package trial.play;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.app.Activity;
import android.content.Intent;
public class Food extends Activity implements View.OnClickListener {
Button button1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.singer);
button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// TODO Auto-generated method stub
return super.onCreateOptionsMenu(menu);
}
public void button1Click; {
startActivity(new Intent("android.intent.action.TESTMENUACTIVITY"));}
public void onClick(View view) {
// TODO Auto-generated method stub
switch (view.getId()) {
case R.id.button1:
button1Click: break;
}
}
public void Enter(View view) {
Intent openTestMenuActivity = (new Intent(
"trial.play.TESTMENUACTIVITY"));
startActivity(openTestMenuActivity);
}
}
I'm still new to development so be specific and show me what you mean if you can.
Thanks

trouble with startForeground and notification showing.

I have already service up and running. So that is working well. Now I am stuck with startForeground. My notifications dont seem to show so I believe startForeground isnt working as well.
I am developing for API range 10-17
I already tried several tutorials without luck
Is someone willing to help me out?
http://www28.zippyshare.com/v/73408891/file.html
Code:
package jonashendrickx.radioplayer.rgrfm;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnErrorListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.os.Binder;
import android.os.IBinder;
import android.support.v4.app.NotificationCompat;
import android.util.Log;
public class RadioService extends Service implements OnErrorListener {
private final IBinder mBinder = new RadioBinder();
private MediaPlayer mMediaPlayer;
private final String[] mirrors = {
"http://stream.intronic.nl/rgrfm",
"http://shoutcast01.edpnet.net:10210"
};
@Override
public IBinder onBind(Intent arg0) {
return mBinder;
}
@Override
public void onCreate() {
initializeMediaPlayer();
startPlaying();
}
@Override
public void onDestroy() {
stopPlaying();
}
@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
mp.stop();
mp.release();
return false;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
//Log.i("LocalService", "Received start id " + startId + ": " + intent);
return START_STICKY;
}
private void initializeMediaPlayer() {
mMediaPlayer = new MediaPlayer();
try {
mMediaPlayer.setDataSource(mirrors[0]);
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private void startPlaying() {
try {
mMediaPlayer.setOnErrorListener(this);
mMediaPlayer.prepareAsync();
} catch (IllegalStateException ex) {
ex.printStackTrace();
return;
}
mMediaPlayer.setOnPreparedListener(new OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
mMediaPlayer.start();
}
});
}
private void stopPlaying() {
if (mMediaPlayer.isPlaying()) {
mMediaPlayer.stop();
mMediaPlayer.release();
initializeMediaPlayer();
}
}
public class RadioBinder extends Binder {
RadioService getService() {
return RadioService.this;
}
}
}
Code:
package jonashendrickx.radioplayer.rgrfm;
import android.os.Bundle;
import android.os.IBinder;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ToggleButton;
public class MainActivity extends Activity implements OnClickListener {
private ServiceConnection mConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName className, IBinder service) {
mRadioService = ((RadioService.RadioBinder)service).getService();
}
@Override
public void onServiceDisconnected(ComponentName className) {
mRadioService = null;
mToggleButtonMediaPlayer.setChecked(false);
}
};
private RadioService mRadioService;
private boolean mIsBound;
private ToggleButton mToggleButtonMediaPlayer;
@Override
public void onClick(View view) {
if (view.equals(mToggleButtonMediaPlayer)) {
if (mRadioService == null) {
doBindService();
} else {
doUnbindService();
}
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mToggleButtonMediaPlayer = (ToggleButton)findViewById(R.id.toggleButtonMediaPlayer);
mToggleButtonMediaPlayer.setOnClickListener(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return false;
}
@Override
protected void onDestroy() {
super.onDestroy();
}
void doBindService() {
bindService(new Intent(this, RadioService.class), mConnection, Context.BIND_AUTO_CREATE);
mIsBound = true;
}
void doUnbindService() {
if (mIsBound) {
unbindService(mConnection);
mIsBound = false;
}
}
}
djjonastybe said:
I have already service up and running. So that is working well. Now I am stuck with startForeground. My notifications dont seem to show so I believe startForeground isnt working as well.
I am developing for API range 10-17
I already tried several tutorials without luck
Is someone willing to help me out?
http://www28.zippyshare.com/v/73408891/file.html
Click to expand...
Click to collapse
Where do you call startForeground? I can see just bind.
EDIT: I did not check the zip file as I never download any files if I don't know whether I can trust them. Nothing against you.
EDIT: You could try something like this: (I didn't test it)
Code:
private static final int NOTIFICATION_ID = 7392749; //value doen't matter
@Override
public void runInForeground() {
Notification n = new Notification(R.drawable.ic_launcher, "music is playing", System.currentTimeMillis());
PendingIntent i = PendingIntent.getActivity(this, 0, null, 0);
n.setLatestEventInfo(this, "Music Player", "Playing some music", i);
startForeground(NOTIFICATION_ID, n);
}
EDIT: You could also check out this project: https://github.com/commonsguy/cw-android/tree/master/Notifications/FakePlayer

[JAVA PROBLEM] Successfull compiled app crashes,

Anyone see what im doing wrong here? im new to java so i dont have a clue..
successfully compiles without a problem but crashes on start, the blue code i have added
Code:
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;
[COLOR=DeepSkyBlue]import android.widget.*;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;[/COLOR]
public class MainActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
[COLOR=DeepSkyBlue] Button startpatching = (Button)findViewById(R.id.start);
startpatching.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try {
Process proc = Runtime.getRuntime().exec("/data/local/startpatch.sh /");
BufferedReader read = new BufferedReader(new InputStreamReader(
proc.getInputStream()));
try {
proc.waitFor();
} catch (InterruptedException e) {
System.out.println(e.getMessage());
}
while (read.ready()) {
System.out.println(read.readLine());
}
} catch (IOException e) {
System.out.println(e.getMessage());
}}
});
};[/COLOR]
@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 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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
return rootView;
}
}
}
Probably would be wise to include the stack trace...
ricky310711 said:
Anyone see what im doing wrong here? im new to java so i dont have a clue..
successfully compiles without a problem but crashes on start, the blue code i have added
Code:
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;
[COLOR=DeepSkyBlue]import android.widget.*;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;[/COLOR]
public class MainActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
[COLOR=DeepSkyBlue] Button startpatching = (Button)findViewById(R.id.start);
startpatching.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try {
Process proc = Runtime.getRuntime().exec("/data/local/startpatch.sh /");
BufferedReader read = new BufferedReader(new InputStreamReader(
proc.getInputStream()));
try {
proc.waitFor();
} catch (InterruptedException e) {
System.out.println(e.getMessage());
}
while (read.ready()) {
System.out.println(read.readLine());
}
} catch (IOException e) {
System.out.println(e.getMessage());
}}
});
};[/COLOR]
@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 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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
return rootView;
}
}
}
Click to expand...
Click to collapse
Post a log/stacktrace as jcase suggested and also the content of activity_main.xml
jcase said:
Probably would be wise to include the stack trace...
Click to expand...
Click to collapse
Jonny said:
Post a log/stacktrace as jcase suggested and also the content of activity_main.xml
Click to expand...
Click to collapse
thanks guy, got it working but

[Q] App crashes after sending a message using sockets

I'm developing a simple chat app and it just stops after transmitting the message. The Server shows the message that means that it is sent successfully but my app crashes after that. This is the Client code :
Code:
package com.example.androidpc;
import java.io.IOException;
import java.io.PrintStream;
import java.net.Socket;
import java.util.Scanner;
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class Chat extends Activity {
Socket socket;
EditText msg_txt;
TextView chatfield_tv;
Button send_btn;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_chat);
msg_txt = (EditText) findViewById(R.id.msg_txt);
chatfield_tv = (TextView) findViewById(R.id.chatfield_tv);
send_btn = (Button) findViewById(R.id.send_btn);
socket = SocketWrapper.getSocket();
send_btn.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
new chatIO().execute();
}
});
}
private class chatIO extends AsyncTask<String,String,String>{
PrintStream ps;
Scanner scan;
@Override
protected String doInBackground(String... arg0) {
// TODO Auto-generated method stub
try {
ps = new PrintStream(socket.getOutputStream());
ps.println(msg_txt.getText().toString());
publishProgress("you");
scan = new Scanner(socket.getInputStream());
publishProgress("i");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
@Override
protected void onProgressUpdate(String... values) {
// TODO Auto-generated method stub
if(values[0].equals("you"))
{
chatfield_tv.append("You : "+msg_txt.getText().toString());
msg_txt.setText("");
}
else
{
chatfield_tv.append("Server : "+scan.nextLine());
}
super.onProgressUpdate(values);
}
@Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
ps.flush();
scan.close();
super.onPostExecute(result);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.chat, 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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
I don't have a logcat since i don't test on an emulator or adb

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