android - java.lang.NumberFormatException：无效的长：“空”

Answer 1

I believe your following statements are creating error,

startDates.add(getDate(Long.parseLong(cursor.getString(3))));
endDates.add(getDate(Long.parseLong(cursor.getString(4))));

Just change them as following and try again.

startDates.add(getDate(Long.parseLong(cursor.getString(3).trim())));
endDates.add(getDate(Long.parseLong(cursor.getString(4).trim())));

Your field might contain a white space which you need to remove before converting them in to Long Data type.

Answer 2

Use startDates.add(getDate(cursor.getLong(3))); endDates.add(getDate(cursor.getLong(4)));

instead of startDates.add(getDate(Long.parseLong(cursor.getString(3)))); endDates.add(getDate(Long.parseLong(cursor.getString(4))));