sPFFramework/src/main/java/it/polimi/spf/framework/notification/SPFTriggerTable.java
boolean deleteTrigger(long id, String appPackageName) {
		String where = Contract.COLUMN_APP_IDENTIFIER + " = ? AND " + Contract._ID + " = ?";
		String[] whereArgs = { appPackageName, Long.toString(id) };
		int count = getReadableDatabase().delete(Contract.TABLE_NAME, where, whereArgs);
		return count > 0;

	}
boolean deleteTrigger(long id, String appPackageName) {
		String where = Contract.COLUMN_APP_IDENTIFIER + " = ? AND " + Contract._ID + " = ?";
		String[] whereArgs = { appPackageName, Long.toString(id) };
		int count = getReadableDatabase().delete(Contract.TABLE_NAME, where, whereArgs);
		return count > 0;

	}
Delete the trigger with the given id.

@param id
@param appPackageName
@return true if there is a deletion