Develop Reference

Not able to receive data in activity from foreground service in app android

I am making an app that reads data being sent via Bluetooth in one activity which then is redirected to a foreground service which sends an intent to another activity where the data will be processed. I know I am missing something in the code for the broadcast receiver on the activity code.
If anyone can give me advice or help me with the data being able to be processed. There are no crashes so far. I am new in coding in android studio and any help would be great!
*** This is the code for the Foreground Service ***
public class ForegroundService extends Service {
public static final String CHANNEL_ID = "ForegroundServiceChannel";
#Override
public void onCreate(){
super.onCreate();
createNotificationChannel();
Intent notificationIntent = new Intent(this, MainActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID)
.setContentTitle("Foreground Service")
.setContentIntent(pendingIntent)
.build();
startForeground(1, notification);
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
//super.onStartCommand(intent, flags, startId);
String input = intent.getStringExtra("inputExtra");
Log.i("Tag", input);
sendData(input);
createNotificationChannel();
Intent notificationIntent = new Intent(this, MainActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this,
0, notificationIntent, 0);
Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID)
.setContentTitle("Foreground Service")
.setContentText(input)
.setContentIntent(pendingIntent)
.build();
startForeground(1, notification);
return START_NOT_STICKY;
}
#Override
public void onDestroy() {
super.onDestroy();
}
#Nullable
#Override
public IBinder onBind(Intent intent)
{
return null;
}
private void sendData(String input){
Log.i("Tag", "inside sendData");
Intent intent = new Intent();
intent.setAction("com.example.Pillwoah.sendbroadcast");
intent.setFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES);
intent.putExtra("inputExtra", input);
sendBroadcast(intent);
}
private void createNotificationChannel() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel serviceChannel = new NotificationChannel(CHANNEL_ID, "Foreground Service Channel", NotificationManager.IMPORTANCE_DEFAULT);
NotificationManager manager = getSystemService(NotificationManager.class);
manager.createNotificationChannel(serviceChannel);
}
}
}
*** This is the code for the activity ***
public class MainActivity5 extends AppCompatActivity {
protected static final String TAG = "TAG";
TextView dataText;
BroadcastReceiver receiver;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main5);
Log.i(TAG, "data sending");
configureReceiver();
}
class DataBroadcastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
String message = "Broadcast intent detected " + intent.getAction();
Log.i(TAG, message);
}
}
private void configureReceiver(){
IntentFilter filter = new IntentFilter();
filter.addAction("com.example.Pillwoah.sendbroadcast");
receiver = new DataBroadcastReceiver();
registerReceiver(receiver, filter);
}
}

How to stop a foreground service from the notification in android?

I am using a foreground service in my application I need to stop this service from a button that is present on the notification itself without opening the activity.
My current code
This is my activity from where I am starting the service.
serviceIntent = new Intent(getApplicationContext(),BackgroundService.class);
serviceIntent.putExtra("ip",ipAdd);
serviceIntent.putExtra("token",token);
serviceIntent.putExtra("port",portNo);
serviceIntent.putExtra("resource",resourceId);
serviceIntent.putExtra("userName",username);
startService(serviceIntent);
ClosingBackGroundService.getMainActivityContext(MainActivity.this);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
stopService(serviceIntent);
}
});
I am using a class to show the button on the notification and trying to close the activity
public class ClosingBackGroundService extends BroadcastReceiver {
static Context mainActContext;
public static void getMainActivityContext(Context context){
mainActContext = context;
}
#Override
public void onReceive(Context context, Intent intent) {
mainActContext.stopService(MainActivity.serviceIntent);
Log.i("Service","closed");
}
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
registerReceiver(broadcastReceiver, filter);
Intent notificationIntent = new Intent(this,LoginActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this,0,notificationIntent,0);
Intent closingIntent = new Intent(this,ClosingBackGroundService.class);
PendingIntent actionIntent = PendingIntent.getBroadcast(this,0,closingIntent,PendingIntent.FLAG_UPDATE_CURRENT);
Notification notification = new NotificationCompat.Builder(this,CHANNEL_ID)
.setOngoing(true)
.setSmallIcon(R.drawable.logo)
.addAction(R.mipmap.ic_launcher,"Close Services",actionIntent)
.setContentIntent(pendingIntent)
.setAutoCancel(true)
.setContentText("Processes Running In BackGround").build();
ipAdd = intent.getStringExtra("ip");
port = intent.getStringExtra("port");
token = intent.getStringExtra("token");
resourceId = intent.getIntExtra("resource",0);
username = intent.getStringExtra("userName");
runnableForGps.run();
runnableForSendingGpsData.run();
runnableForBluetooth.run();
runnableForsendingBTData.run();
startForeground(1,notification);
return START_STICKY;
}
When I press the button the notification disappears but the process keeps on working.

You don't need to create BroadCast to stop Service. Try this
private static final String ACTION_STOP_LISTEN = "action_stop_listen";
Intent intent = new Intent(this, ClosingBackGroundService.class);
intent.setAction(ACTION_STOP_LISTEN);
PendingIntent actionIntent = PendingIntent.getService(this, 123, intent, PendingIntent.FLAG_UPDATE_CURRENT);
addAction(R.mipmap.ic_launcher,"Close Services",actionIntent)
In onStartCommand check your Intent action
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (intent != null && ACTION_STOP_LISTEN.equals(intent.getAction())) {
stopForeground(true);
stopSelf();
return START_NOT_STICKY;
}
// your code
}

cancelAlarm method not actually canceling my AlarmManager

I have used this cancelAlarm method from another reputable answer on stack, and it isn't getting the job done, and I am out of ideas of why this isn't working.
I have an activity where one button will start an alarm that will go off every given interval. I then have another button that will cancel that alarm. Here are the buttons first:
start.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
setupAlarm(10);
}
});
stop.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try{
cancelAlarm(ALARM_ID);
} catch(Exception e){
Toast.makeText(getApplicationContext(), "ERROR", Toast.LENGTH_SHORT).show();
}
}
});
And here are my setupAlarm and cancelAlarm methods:
private void setupAlarm(int seconds) {
AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
Intent i = new Intent(getBaseContext(), AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(
MainActivity.this, ALARM_ID, i, PendingIntent.FLAG_UPDATE_CURRENT);
Calendar t = Calendar.getInstance();
t.setTimeInMillis(System.currentTimeMillis());
int interval = seconds*1000;
am.setRepeating(AlarmManager.RTC_WAKEUP, t.getTimeInMillis(), interval, pendingIntent);
MainActivity.this.finish();
}
private void cancelAlarm(int alarmId){
Intent i = new Intent(getBaseContext(), AlarmManager.class);
PendingIntent sender = PendingIntent.getBroadcast(MainActivity.this, alarmId, i, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.cancel(sender);
sender.cancel();
}
I remembered to make another alarm manager with the same ID, and call alarmManager.cancel(sender); on the PendingIntent but it doesn't seem to do anything, because my service will start back up anyway.
AlarmReciever class:
public class AlarmReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent)
{
Context oAppContext = context.getApplicationContext();
if (oAppContext == null) {
oAppContext = context;
}
Intent serviceIntent = new Intent(oAppContext, MyService.class);
oAppContext.startService(serviceIntent);
}
}
MyService class:
public class MyService extends Service implements SensorEventListener{
private PowerManager.WakeLock wakeLock;
Sensor mSensor;
SensorManager mSensorManager;
String toastString = "";
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public void onCreate(){
mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
mSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
mSensorManager.registerListener(this, mSensor, SensorManager.SENSOR_DELAY_NORMAL);
PowerManager mgr = (PowerManager) getApplicationContext().getSystemService(Context.POWER_SERVICE);
wakeLock = mgr.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "MyWakeLock");
wakeLock.acquire();
Toast.makeText(this, "onCreate Successful", Toast.LENGTH_SHORT).show();
}
#Override
public int onStartCommand(Intent intent, int flags, int startid) {
Toast.makeText(this, "onStart Successful", Toast.LENGTH_SHORT).show();
return Service.START_STICKY;
}
#Override
public void onSensorChanged(SensorEvent event) {
//record some data from the accelerometer
quit();
}
#Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
private void quit(){
mSensorManager.unregisterListener(MyService.this);
wakeLock.release();
this.stopSelf();
}
}
And I keep on getting the toasts from my MyService class telling me that my onCreate and onStart were successfully instantiated, even after calling my cancelAlarm method.

Use same PendingIntent that you used while creating Alarm. Use AlarmReceiver.class instead of AlarmManager.class in your Intent:
Intent i = new Intent(getBaseContext(), AlarmReceiver.class);
Update cancelAlarm() method as below:
private void cancelAlarm(int alarmId){
Intent i = new Intent(getBaseContext(), AlarmReceiver.class);
PendingIntent sender = PendingIntent.getBroadcast(MainActivity.this, alarmId, i, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.cancel(sender);
sender.cancel();
}
Hope this will help~

Issue in setrepeating() in android alarmmanger?

I have tried alarmanager in order to get daily notification in android.... The alarm do start at specified time but gets repeated every minute after that...I have specified INTERVAL_DAY in setrepeating() function of Mainactivity but it does not seems to work. It contains three parts Mainactivity, MyReceiver & AlarmService. Can anyone seems to fix this ??
Mainactivity
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Calendar calendar = Calendar.getInstance();
// we can set time by open date and time picker dialo
calendar.set(Calendar.HOUR_OF_DAY, 12);
calendar.set(Calendar.MINUTE, 10);
calendar.set(Calendar.SECOND, 0);
Intent intent1 = new Intent(MainActivity.this, MyReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this, 0, intent1, PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager am = (AlarmManager) getSystemService(this.ALARM_SERVICE);
Log.e("Tag","calling here");
am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),864000, pendingIntent);
}
}
MyReceiver
public class MyReceiver extends BroadcastReceiver{
int MID=0;
#Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager) context
.getSystemService(Context.NOTIFICATION_SERVICE);
Intent notificationIntent = new Intent(context, MainActivity.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0,
notificationIntent, PendingIntent.FLAG_CANCEL_CURRENT);
Uri alarmSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder mNotifyBuilder = new NotificationCompat.Builder(
context).setSmallIcon(R.drawable.icon)
.setContentTitle("Alaram Fired")
.setContentText("Events To be PErformed").setSound(alarmSound)
.setAutoCancel(true).setWhen(when)
.setContentIntent(pendingIntent)
.setVibrate(new long[]{1000, 1000, 1000, 1000, 1000});
notificationManager.notify(MID, mNotifyBuilder.build());
MID++;
}
}
MyAlarmService
public class MyAlarmService extends Service
{
private NotificationManager mManager;
#Override
public IBinder onBind(Intent arg0)
{
// TODO Auto-generated method stub
return null;
}
#Override
public void onCreate()
{
// TODO Auto-generated method stub
super.onCreate();
}
#SuppressWarnings("static-access")
#Override
public void onStart(Intent intent, int startId)
{
Log.e("Tag1","alarmservice here");
super.onStart(intent, startId);
mManager = (NotificationManager) this.getApplicationContext().getSystemService(this.getApplicationContext().NOTIFICATION_SERVICE);
Intent intent1 = new Intent(this.getApplicationContext(),MainActivity.class);
Notification notification = new Notification(R.drawable.icon,"This is a test message!", System.currentTimeMillis());
intent1.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP| Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingNotificationIntent = PendingIntent.getActivity( this.getApplicationContext(),0, intent1,PendingIntent.FLAG_CANCEL_CURRENT);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
//notification.setLatestEventInfo(this.getApplicationContext(), "Daily Notification Demo", "This is a test message!", pendingNotificationIntent);
mManager.notify(0, notification);
}
#Override
public void onDestroy()
{
// TODO Auto-generated method stub
super.onDestroy();
}
}

AlarmManager.setRepeating doesn't work properly on different android versions.
Try setExact. It won't repeat but you can achieve repeating functionality as mentioned below:
Update MyReceiver
AlarmManager manager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent alarmIntent = new Intent(this, AlarmReceiver.class);
pendingIntent = PendingIntent.getBroadcast(this, 0, alarmIntent, 0);
manager.setExact(AlarmManager.RTC_WAKEUP, (864000 + System.currentTimeMillis()),pendingIntent);
Here we schedule alarm again by calculating nextAlarmTime using 864000 + System.currentTimeMillis();

Notification within 24 hours

I created a method to send a notification to the user named sendNotification () using NotificationCompat.Builder and NotificationManager.
I need this notification to be posted at a fixed interval of 24 hours or even at a specific time, for example every day at 07:00 AM, which in this case would result in the same 24 hours, which may be adjusted by the user in the future.
It seems to me that with the public class AlarmManager it is possible to perform this procedure, but I am not sure if I have to create a service or if it would be the service itself.
How could this notification be done within this 24-hour ?

public void setLocalNotification(){
alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmIntent = new Intent(this, LocalNotificationReceiver.class);
pendingIntent = PendingIntent.getBroadcast(this, 99, alarmIntent, PendingIntent.FLAG_CANCEL_CURRENT);
Log.d("TAG ","LocalNotification Start");
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,System.currentTimeMillis() + AlarmManager.INTERVAL_DAY, AlarmManager.INTERVAL_DAY, pendingIntent);
}
public class LocalNotificationReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Log.d("TUS-NOTAS ", "LocalNotification Receiver");
Intent service1 = new Intent(context, ShowNotificationService.class);
context.startService(service1);
}
}
public class ShowNotificationService extends IntentService {
private static final int NOTIFICATION_ID = 1;
private PendingIntent pendingIntent;
private NotificationManager notificationManager;
private final static String TAG = "ShowNotification";
public ShowNotificationService()
{
super("ServiceNotification");
}
public ShowNotificationService(String name) {
super(name);
}
#Override
public void onCreate() {
super.onCreate();
Context context = this.getApplicationContext();
Uri uri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
notificationManager = (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);
Intent mIntent = new Intent(this, SplashActivity.class);
pendingIntent = PendingIntent.getActivity(context,99, mIntent, PendingIntent.FLAG_CANCEL_CURRENT);
NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
builder.setContentTitle(getResources().getString(R.string.app_name));
builder.setVibrate(new long[] { 200, 200});
builder.setSound(uri);
if (Global.getStringKey(getApplicationContext(), Definitions.LANGUAGE_VALUE).equals("en"))
{
builder.setStyle(new NotificationCompat.BigTextStyle().bigText("We miss you!"));
builder.setContentText("You have not added any notes recently.");
}else if (Global.getStringKey(getApplicationContext(),Definitions.LANGUAGE_VALUE).equals("es"))
{
builder.setStyle(new NotificationCompat.BigTextStyle().bigText("Te extrañamos!"));
builder.setContentText("No has agregado notas recientemente.");
}
builder.setAutoCancel(true);
builder.setSmallIcon(R.drawable.ic_logo_app);
builder.setContentIntent(pendingIntent);
notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
notificationManager.notify(NOTIFICATION_ID, builder.build());
Log.d("TUS-NOTAS"," LocalNotification Service");
}
#Nullable
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
protected void onHandleIntent(Intent intent) {
}
}

0 0 7 1/1 * ? *
This is a cron statement made from http://www.cronmaker.com/. You can use this in a cron job that executes everyday at 7 am.