Я хочу сбросить alarmmanager после перезагрузки телефона
Это код для сброса тревоги после перезагрузки. После перезагрузки телефона я запрашиваю данные из SQLi в классе AlarmReset и отправляю данные в alarmmanager методом au.setAlarm ().
public class AlarmReset extends BroadcastReceiver {
SQLiteDatabase db;
DBHelper dbHelper ;
Cursor cursor;
String type_number;
String op_name;
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(cursor.getString(0), Integer.parseInt(cursor.getString(1)), "Test !");
}
}
// db.close();
}
}
Это класс AlarmUtils, используемый методом setAlarm () для сигнализации 2 раза.
public class AlarmUtils extends AppCompatActivity {
public void setAlarm(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
Calendar next2 = Calendar.getInstance();
next2.set(Calendar.YEAR, Integer.parseInt(year));//year...
next2.set(Calendar.MONTH, Integer.parseInt(month)-1); //first month is 0!!! January is zero!!!
next2.set(Calendar.DAY_OF_MONTH, Integer.parseInt(day)); //1-31
next2.set(Calendar.HOUR_OF_DAY,7); //HOUR
next2.set(Calendar.MINUTE, 0); //MIN
next2.set(Calendar.SECOND, 2); //SEC
Date newDate1 = next1.getTime();
Date newDate2 = next2.getTime();
Intent myIntent = new Intent(getApplicationContext(), AlarmReceiver.class);
myIntent.putExtra("Title", "Title");
myIntent.putExtra("Notes", sNotes);
PendingIntent pendingIntent1 = PendingIntent.getBroadcast(getApplicationContext(), rq_Code, myIntent, 0);
PendingIntent pendingIntent2 = PendingIntent.getBroadcast(getApplicationContext(), rq_Code+1, myIntent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, next1.getTimeInMillis(), DateUtils.DAY_IN_MILLIS,pendingIntent1);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, next2.getTimeInMillis(), DateUtils.DAY_IN_MILLIS,pendingIntent2);
}
}
После того, как я перезагружаю телефон и открываю приложение, оно показывает ошибку, подобную этой.
10-29 10:03:23.507 2977-2977/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.max.driver_app, PID: 2977
java.lang.RuntimeException: Unable to start receiver com.example.max.driver_app.AlarmReset: java.lang.NullPointerException
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.NullPointerException
at android.content.ContextWrapper.getApplicationContext(ContextWrapper.java:109)
at com.example.max.driver_app.AlarmUtils.setAlarm(AlarmUtils.java:53)
at com.example.max.driver_app.AlarmReset.onReceive(AlarmReset.java:64)
at android.app.ActivityThread.handleReceiver(ActivityThread.java:2431)
setAlarm (AlarmUtils.java:53) это строка
Intent myIntent = new Intent (getApplicationContext (),
AlarmReceiver.class);
(AlarmReset.java:64) это строка
au.setAlarm (cursor.getString (0),
Integer.parseInt (cursor.getString (1)), "Test!");
Как это исправить?