AlarmManager reset show error System services not available to Activities before onCreate()

Question

After android phone reboot I reset alarmmanager by query date from SQLi to set alarmmanager.

This is class AlarmReset after phone reboot this class query data to use with method setAlarm().

public class AlarmReset  extends BroadcastReceiver {

    SQLiteDatabase db;
    DBHelper dbHelper ;
    Cursor cursor;
    String sNotes;

    @Override
    public void onReceive(Context context, Intent intent) {

        AlarmUtils au = new AlarmUtils();
        dbHelper = new DBHelper(context);

        if (intent.getAction().equals("android.intent.action.BOOT_COMPLETED")) {
            // Set the alarm here.

            db = dbHelper.getWritableDatabase();

            String[] queryColumns = new String[]{DBHelper.COL_DATE,DBHelper.COL_RQCODE , DBHelper.COL_VEHICLE_TYPE, DBHelper.COL_OPTION_NAME};
           cursor = db.query(DBHelper.TABLE_NAME, queryColumns,null,null,null,null,null);

                while (cursor.moveToNext()) {

                    au.setAlarm(context,cursor.getString(0), Integer.parseInt(cursor.getString(1)), "Test !");

                }

            }
            db.close();

    }

}

This is class AlarmUtils for create method setAlarm() it set alarmmanager.

public class AlarmUtils  extends AppCompatActivity {

    public void setAlarm(Context context, String alarmDate, int rq_Code, String sNotes) {


        String[] parts = alarmDate.split("-");

        String day = parts[0];
        String month = parts[1];
        String year = parts[2];
        Calendar next1 = Calendar.getInstance();
        next1.set(Calendar.YEAR, Integer.parseInt(year));//year...
        next1.set(Calendar.MONTH, Integer.parseInt(month)-1);  //first month is 0!!! January is zero!!!
        next1.set(Calendar.DAY_OF_MONTH, Integer.parseInt(day)-1);  //1-31

        next1.set(Calendar.HOUR_OF_DAY,19);  //HOUR
        next1.set(Calendar.MINUTE,0);       //MIN
        next1.set(Calendar.SECOND, 2);       //SEC

        Intent myIntent = new Intent(context, AlarmReceiver.class);
        myIntent.putExtra("Title", "Title");
        myIntent.putExtra("Notes", sNotes);


        PendingIntent pendingIntent1 = PendingIntent.getBroadcast(context, rq_Code, myIntent, 0);


        AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
        alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, next1.getTimeInMillis(), DateUtils.DAY_IN_MILLIS,pendingIntent1);

    }

}

When I run this code it show error like this.

10-30 00:07:09.889 3303-3303/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.max.driver_app, PID: 3303
java.lang.RuntimeException: Unable to start receiver com.example.max.driver_app.AlarmReset: java.lang.IllegalStateException: System services not available to Activities before onCreate()
    at android.app.ActivityThread.handleReceiver(ActivityThread.java:2438)
    at android.app.ActivityThread.access$1700(ActivityThread.java:143)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1285)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:136)
    at android.app.ActivityThread.main(ActivityThread.java:5059)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:515)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:818)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:634)
    at dalvik.system.NativeStart.main(Native Method)
 Caused by: java.lang.IllegalStateException: System services not available to Activities before onCreate()
    at android.app.Activity.getSystemService(Activity.java:4600)
    at com.example.max.driver_app.AlarmUtils.setAlarm(AlarmUtils.java:61)
    at com.example.max.driver_app.AlarmReset.onReceive(AlarmReset.java:64)
    at android.app.ActivityThread.handleReceiver(ActivityThread.java:2431)
    at android.app.ActivityThread.access$1700(ActivityThread.java:143) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1285) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:136) 
    at android.app.ActivityThread.main(ActivityThread.java:5059) 
    at java.lang.reflect.Method.invokeNative(Native Method) 
    at java.lang.reflect.Method.invoke(Method.java:515) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:818) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:634) 
    at dalvik.system.NativeStart.main(Native Method) 

setAlarm(AlarmUtils.java:61) is class AlarmUtils line

AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);

onReceive(AlarmReset.java:64) is class AlarmReset line

au.setAlarm(context,cursor.getString(0), Integer.parseInt(cursor.getString(1)), "Test !");

How to fix it ?

Answer 1

Just initialize AlarmManager with context, so that change
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);

to:   

AlarmManager alarmManager = (AlarmManager) context.getSystemService(ALARM_SERVICE);