It has been asked a few times before but the solution provided couldn't solve my problem. I am working on the app which has several classes: mainactivity, SMS, and MService. service has a timer. I am trying to call SMS to send a text message every time timer is over. Can please someone help me ....
Thanks for consideration...
public class MService extends Service {
private Handler HandleIt = new Handler();
private final int INTERVAL = 60 * 1000;
private Timer timer = new Timer();
boolean timeout = false;
public interface SmsService
{
void SmsServiceSenter();
}
#Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
class TimeDisplayTimerTask extends TimerTask {
#Override
public void run() {
HandleIt.post(new Runnable(){
public void run(){
Toast.makeText(getApplicationContext(), TextonScreen(), Toast.LENGTH_SHORT).show();
// Intent smsintent = new Intent(getBaseContext(), SMS.class);
// startService(smsintent);
}
});
}
}
private String TextonScreen()
{
timeout = true;
return "it is running";
}
boolean isTimeout()
{
return timeout;
}
#Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
Toast.makeText(this, "Service is created", Toast.LENGTH_SHORT).show();
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO Auto-generated method stub
// Display the Toast Message
Toast.makeText(this, "Start it", Toast.LENGTH_SHORT).show();
// Execute an action after period time
//comes from the TimeDisplayTimerTask class
timer.scheduleAtFixedRate(new TimeDisplayTimerTask(), 0, INTERVAL);
return super.onStartCommand(intent, flags, startId);
}
#Override
public void onDestroy() {
// Display the Toast Message
Toast.makeText(this, "Stop it", Toast.LENGTH_SHORT).show();
super.onDestroy();
}
}
public class SMS extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
message();;
}
boolean issent = false;
String text = "I am here";
String num = "2085578209";
SmsManager smsManager = SmsManager.getDefault();
public void message()
{
// if(Timeout.isTimeout()) {
smsManager.sendTextMessage(num, null, text, null, null);
issent = true;
// }
}
boolean isSent()
{
return issent;
}
}
It is really simple.
After you create your Intent variable, before starting activity add a flag to it like below
Intent launch = new Intent(this, MyActivity.class);
launch.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(launch);
With this above code you can call activity from service
Related
I want to convert Java code to C# but facing problem to do so
public class MyService extends Service {
static final String CONNECTIVITY_CHANGE_ACTION = "android.net.conn.CONNECTIVITY_CHANGE";
NotificationManager manager ;
#Nullable
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
// Let it continue running until it is stopped.
Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show();
IntentFilter filter = new IntentFilter();
filter.addAction("android.net.conn.CONNECTIVITY_CHANGE");
BroadcastReceiver receiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (CONNECTIVITY_CHANGE_ACTION.equals(action)) {
//check internet connection
if (!ConnectionHelper.isConnectedOrConnecting(context)) {
if (context != null) {
boolean show = false;
if (ConnectionHelper.lastNoConnectionTs == -1) {//first time
show = true;
ConnectionHelper.lastNoConnectionTs = System.currentTimeMillis();
} else {
if (System.currentTimeMillis() - ConnectionHelper.lastNoConnectionTs > 1000) {
show = true;
ConnectionHelper.lastNoConnectionTs = System.currentTimeMillis();
}
}
if (show && ConnectionHelper.isOnline) {
ConnectionHelper.isOnline = false;
Log.i("NETWORK123","Connection lost");
//manager.cancelAll();
}
}
} else {
Log.i("NETWORK123","Connected");
showNotifications("APP" , "It is working");
// Perform your actions here
ConnectionHelper.isOnline = true;
}
}
}
};
registerReceiver(receiver,filter);
return START_STICKY;
}
#Override
public void onDestroy() {
super.onDestroy();
Toast.makeText(this, "Service Destroyed", Toast.LENGTH_LONG).show();
}
}
This part I am not getting which coming in middle of code
BroadcastReceiver receiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent)
{
}
};
You probably want to see a more comprehensive answer for this to see how the given suggestions all fits together:
public class MyService : Service
{
internal const string CONNECTIVITY_CHANGE_ACTION = "android.net.conn.CONNECTIVITY_CHANGE";
internal NotificationManager manager;
public override IBinder onBind(Intent intent)
{
return null;
}
public override int onStartCommand(Intent intent, int flags, int startId)
{
// Let it continue running until it is stopped.
Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show();
IntentFilter filter = new IntentFilter();
filter.addAction("android.net.conn.CONNECTIVITY_CHANGE");
BroadcastReceiver receiver = new BroadcastReceiverAnonymousInnerClass();
registerReceiver(receiver,filter);
return START_STICKY;
}
private class BroadcastReceiverAnonymousInnerClass : BroadcastReceiver
{
public override void onReceive(Context context, Intent intent)
{
string action = intent.Action;
if (CONNECTIVITY_CHANGE_ACTION.Equals(action))
{
//check internet connection
if (!ConnectionHelper.isConnectedOrConnecting(context))
{
if (context != null)
{
bool show = false;
if (ConnectionHelper.lastNoConnectionTs == -1)
{ //first time
show = true;
ConnectionHelper.lastNoConnectionTs = DateTimeHelper.CurrentUnixTimeMillis();
}
else
{
if (DateTimeHelper.CurrentUnixTimeMillis() - ConnectionHelper.lastNoConnectionTs > 1000)
{
show = true;
ConnectionHelper.lastNoConnectionTs = DateTimeHelper.CurrentUnixTimeMillis();
}
}
if (show && ConnectionHelper.isOnline)
{
ConnectionHelper.isOnline = false;
Log.i("NETWORK123","Connection lost");
//manager.cancelAll();
}
}
}
else
{
Log.i("NETWORK123","Connected");
showNotifications("APP", "It is working");
// Perform your actions here
ConnectionHelper.isOnline = true;
}
}
}
}
public override void onDestroy()
{
base.onDestroy();
Toast.makeText(this, "Service Destroyed", Toast.LENGTH_LONG).show();
}
}
internal static class DateTimeHelper
{
private static readonly System.DateTime Jan1st1970 = new System.DateTime(1970, 1, 1, 0, 0, 0, System.DateTimeKind.Utc);
public static long CurrentUnixTimeMillis()
{
return (long)(System.DateTime.UtcNow - Jan1st1970).TotalMilliseconds;
}
}
I think you would do something like this
var receiver = new MyReceiver();
public class MyReceiver : BroadcastReceiver
{
public override void onReceive(Context context, Intent intent)
{
}
}
Since C# does not allow anonymous classes you will have to explicitly create it and then pass the data that you need there from this class.
[BroadcastReceiver(Enabled = true, Exported = false)]
public class SampleReceiver : BroadcastReceiver
{
public override void OnReceive(Context context, Intent intent)
{
// Do stuff here.
}
}
Then use it like:
var receiver = new SampleReceiver();
I'm trying to stop my service with stopService(), but it will still running. It only stops when I unregister the brodcast receiver, but when I register that again, there will be two actions activated at the same time.
The thread is still running somehow, I really tried everything and reading every single post on the forum but I dind't find a solution.
Service Class
public class MyService extends Service {
final static String MY_ACTION = "MY_ACTION";
private static Context context;
private Timer timer;
public String Data;
String ok = "Database\n";
#Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
return null;
}
#Override
public void onCreate() {
super.onCreate();
}
#Override
public void onDestroy() {
super.onDestroy();
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO Auto-generated method stub
MyThread myThread = new MyThread();
myThread.start();
return super.onStartCommand(intent, flags, startId);
}
public class MyThread extends Thread{
#Override
public void run() {
// TODO Auto-generated method stub
try {
int delay = 1000; // delay for 1 sec.
int period = 5 * 1000; // repeat every 120 sec.
timer = new Timer();
timer.scheduleAtFixedRate(new TimerTask() {
public void run() {
Calendar c = Calendar.getInstance();
Data = String.valueOf((c.get(Calendar.MILLISECOND)));
Intent intent = new Intent();
intent.setAction(MY_ACTION);
intent.putExtra("DATAPASSED", ok);
sendBroadcast(intent);
}
}, delay, period);
} catch (Exception ex) {
ex.printStackTrace();
}
stopSelf();
}
}
}
MainActivity
final IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(MyService.MY_ACTION);
registerReceiver(broadcastReceiver, intentFilter);
final Intent intent = new Intent(MainActivity.this, MyService.class);
//Start our own service
btnStart.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//registerReceiver(broadcastReceiver, intentFilter);
startService(intent);
}
});
btnStop.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//unregisterReceiver(broadcastReceiver);
stopService(intent);
}
});
}
#Override
protected void onStop() {
// TODO Auto-generated method stub
unregisterReceiver(broadcastReceiver);
super.onStop();
}
BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
int datapassed = intent.getIntExtra("DATAPASSED", 0);
String s = intent.getAction().toString();
String s1 = intent.getStringExtra("DATAPASSED");
textview.append(s1);
}
};
What I'm doing wrong is calling stopSelf() inside my Thread which is causing the service calling the onDestroy() method. I just removed that and added myTimer and myTask as local variables, then I could add myTimer.cancel() onDestroy and it worked.
I am making a game app but the music still keeps playing even when I closed the game. how to stop? and how to change background music once I go to another activity after I clicked a button
public class BackgroundSoundService extends Service {
private static final String TAG = null;
MediaPlayer player;
public IBinder onBind(Intent arg0) {
return null;
}
#Override
public void onCreate() {
super.onCreate();
player = MediaPlayer.create(this, R.raw.rysk);
player.setLooping(true); // Set looping
player.setVolume(100,100);
}
public int onStartCommand(Intent intent, int flags, int startId) {
player.start();
return 1;
}
public void onStart(Intent intent, int startId) {
// TO DO
}
public IBinder onUnBind(Intent arg0) {
// TO DO Auto-generated method
return null;
}
public void onStop() {
}
public void onPause() {
}
#Override
public void onDestroy() {
player.stop();
player.release();
}
#Override
public void onLowMemory() {
}
}
this is my main activity (PlayActivity.class)
Intent svc=new Intent(this, BackgroundSoundService.class);
startService(svc);
I want to change the music when I clicked a button and went to CatActivity
You should have to work with registerReceiver,unregisterReceiver.
May this helps you.
MainActivity.java
public class MainActivity extends AppCompatActivity {
private Button btn_startservice;
private Button btn_stopservice;
private TextView tv_servicecounter;
ServiceDemo myService;
boolean isBound;
BroadcastReceiver broadcastRec = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
int datapassed = intent.getIntExtra("value", 0);
tv_servicecounter.setText(String.valueOf(datapassed));
}
};
#RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv_servicecounter = (TextView) findViewById(R.id.tv_activity_main_count);
btn_startservice = (Button) findViewById(R.id.btn_activity_main_startservices);
btn_stopservice = (Button) findViewById(R.id.btn_activity_main_stopservices);
btn_startservice.setOnClickListener(
new View.OnClickListener() {
#RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)
#Override
public void onClick(View v) {
Intent objIntent = new Intent(MainActivity.this, ServiceDemo.class);
if (!isBound) {
bindService(objIntent, myConnection, Context.BIND_AUTO_CREATE);
isBound = true;
startService(objIntent);
} else {
isBound = false;
unbindService(myConnection);
}
}
}
);
btn_stopservice.setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent objIntent = new Intent(MainActivity.this, ServiceDemo.class);
if (isBound) {
isBound = false;
unbindService(myConnection);
stopService(objIntent);
} else {
stopService(objIntent);
}
}
}
);
}
#Override
protected void onResume() {
registerReceiver(broadcastRec, new IntentFilter("USER_ACTION"));
super.onResume();
}
#Override
protected void onStop() {
this.unregisterReceiver(broadcastRec);
super.onStop();
}
private ServiceConnection myConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className,
IBinder service) {
myService = ((ServiceDemo.MyLocalBinder) service).getService();
isBound = true;
}
public void onServiceDisconnected(ComponentName arg0) {
isBound = false;
}
};
#Override
protected void onDestroy() {
super.onDestroy();
if (isBound) {
unbindService(myConnection);
isBound = false;
}
}
}
And ServiceDemo.java
public class ServiceDemo extends Service {
int i;
private MyThread mythread;
public boolean isRunning = false;
Notification notification;
#Override
public void onCreate() {
super.onCreate();
Log.d(TAG, "onCreate");
mythread = new MyThread();
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
Toast.makeText(this, "Service Started", Toast.LENGTH_SHORT).show();
if (!isRunning) {
mythread.start();
isRunning = true;
}
return START_STICKY;
}
#Override
public void onDestroy() {
super.onDestroy();
mythread.interrupt();
Toast.makeText(this, "Service Destroyed", Toast.LENGTH_SHORT).show();
}
public void sendBrodcastMsg(int value) {
Intent intent = new Intent();
intent.setAction("USER_ACTION");
intent.putExtra("value", value);
sendBroadcast(intent);
}
#RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
class MyThread extends Thread {
static final long DELAY = 100;
#Override
public void run() {
while (isRunning) {
try {
i++;
Thread.sleep(DELAY);
sendBrodcastMsg(i);
shownotification();
} catch (InterruptedException e) {
isRunning = false;
e.printStackTrace();
}
}
stopSelf();
}
}
#RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public void shownotification() {
Intent in = new Intent(this, MainActivity.class);
PendingIntent pIntent = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), in, 0);
notification = new NotificationCompat.Builder(this)
.setContentTitle(String.valueOf(i))
.setContentText(String.valueOf(i))
.setSmallIcon(R.drawable.musicplayer)
.setContentIntent(pIntent)
.setAutoCancel(true).build();
;
startForeground(101, notification);
}
public class MyLocalBinder extends Binder {
ServiceDemo getService() {
return ServiceDemo.this;
}
}
private final IBinder myBinder = new MyLocalBinder();
#Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
return myBinder;
}
}
put this two lines in manifest.
<service android:name=".ServiceDemo"
android:enabled="true"/>
You need to stop the player in onPause(). Following code can be used:
#Override
protected void onPause() {
super.onPause();
if (this.isFinishing()){
player.stop();
}
}
Check Android Stop Background Music for more details
for that you should stop the service in the onCreate method of the Activity. Below is the code for it :
stopService(new Intent(MyService.MY_SERVICE));
Best of Luck!
In Your MainActivity , You Should Call stopService() Inside MainActivity
#Override
public void OnPause() {
stopService(svc);
}
I have an android application, which contains a main activity which displays information to the user.
When MainActivity starts, A service is created/started which checks a web service on every 10 seconds - if the Web service result will show in a notification.
I start the service from Main activity using Intent,
getActivity().startService(new Intent(getActivity(), NotificationService.class));
I Also try this code, (But same result).
getActivity().runOnUiThread(new Runnable() {
#Override
public void run() {
getActivity().startService(new Intent(getActivity(), NotificationService.class));
}
});
If service started I get warning In my Logcat,
Skipped 91 frames! The application may be doing too much work on its main thread.
My notification service code,
public class NotificationService extends Service {
// constant
public static final long NOTIFY_INTERVAL = 10 * 1000; // 10 seconds
long current_times;
String c_time;
// run on another Thread to avoid crash
private Handler mHandler = new Handler();
// timer handling
static HttpClient client = new DefaultHttpClient();
private Timer mTimer = null;
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO Auto-generated method stub
return START_STICKY;
}
#Override
public IBinder onBind(Intent intent) {
return null;
}
#TargetApi(Build.VERSION_CODES.GINGERBREAD) #SuppressLint("NewApi") #Override
public void onCreate() {
// cancel if already existed
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
SharedPreferences.Editor editor = getSharedPreferences("notification_oldtime", MODE_PRIVATE).edit();
editor.putInt("old_trail_time", 0);
editor.putInt("old_sample_time", 0);
editor.putInt("old_neworder_time", 0);
editor.commit();
if(mTimer != null) {
mTimer.cancel();
} else {
// recreate new
mTimer = new Timer();
}
// schedule task
mTimer.scheduleAtFixedRate(new TimeDisplayTimerTask(), 0, NOTIFY_INTERVAL);
}
public long current_time_get(){
return current_times;
}
class TimeDisplayTimerTask extends TimerTask {
#TargetApi(Build.VERSION_CODES.JELLY_BEAN) #Override
public void run() {
// run on another thread
mHandler.post(new Runnable() {
#Override
public void run() {
// My webservice code for notification
}
}
}
Try using IntentService instead of Service. IntentService does its work on a separate thread.
serviceConnection = new ServiceConnection() {
#Override
public void onServiceConnected(ComponentName className,
IBinder binder) {
try {
((NoteBinder) binder).service.startService(new Intent(
MyActivity.this, NotificationService.class));
MyLog.d(TAG, "onServiceConnected is called; "
+ className.getClassName());
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
#Override
public void onServiceDisconnected(ComponentName className) {
MyLog.d(TAG, "onServiceDisconnected is called; "
+ className.getClassName());
}
};
bindService(
new Intent(BaseActivity.this, NotificationService.class),
serviceConnection, Context.BIND_AUTO_CREATE);
instead of using start service use bind service.
I am trying to create a service that will show a toast every second with the most recent running application. Every time I start the service, I get a NullPointerException. What can I do to avoid this?
public class CheckRunningActivity extends Service {
private static final String TAG = "CheckRunningActivity";
boolean checkApps;
private Timer mTimer = null;
private Handler mHandler = new Handler();
private ActivityManager am;
public static final long NOTIFY_INTERVAL = 1000; // 1 second
#Override
public void onDestroy() {
mTimer.cancel();
}
#Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
#Override
public void onCreate() {
Log.d(TAG, "I created it");
ActivityManager am = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);
// cancel if already existed
if(mTimer != null) {
mTimer.cancel();
} else {
// recreate new
mTimer = new Timer();
}
// schedule task
mTimer.scheduleAtFixedRate(new TimeDisplayTimerTask(), 0, NOTIFY_INTERVAL);
}
class TimeDisplayTimerTask extends TimerTask {
#Override
public void run() {
// run on another thread
mHandler.post(new Runnable() {
#Override
public void run() {
Log.d(TAG, "Its running");
String packageName = am.getRunningTasks(1).get(0).topActivity
.getPackageName();
Toast.makeText(getBaseContext(), packageName, Toast.LENGTH_LONG).show();
Log.d(TAG, "Make Toast");
}
});
}
}
}
you can't directly call toast from service . you need a handler for this. see answer here.
after looking at the code again, I realized that I had not properly initialized the Activity Manager.
Here is the corrected code...
public class CheckRunningActivity extends Service {
private static final String TAG = "CheckRunningActivity";
boolean checkApps;
private Timer mTimer = null;
private Handler mHandler = new Handler();
private ActivityManager am;
public static final long NOTIFY_INTERVAL = 1000; // 1 second
#Override
public void onDestroy() {
mTimer.cancel();
}
#Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
#Override
public void onCreate() {
Log.d(TAG, "I created it");
// cancel if already existed
if(mTimer != null) {
mTimer.cancel();
} else {
// recreate new
mTimer = new Timer();
}
// schedule task
mTimer.scheduleAtFixedRate(new TimeDisplayTimerTask(), 0, NOTIFY_INTERVAL);
}
class TimeDisplayTimerTask extends TimerTask {
#Override
public void run() {
// run on another thread
mHandler.post(new Runnable() {
#Override
public void run() {
ActivityManager am = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);
Log.d(TAG, "Its running");
String packageName = am.getRunningTasks(1).get(0).topActivity.getPackageName();
Toast.makeText(getBaseContext(), packageName, Toast.LENGTH_LONG).show();
Log.d(TAG, "Make Toast");
}
});
}
}
}