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Added in API level 1

Summary: Constants | [Expand All]

BaseColumns

public interface BaseColumns

android.provider.BaseColumns

Known Indirect Subclasses

CalendarContract.Attendees, CalendarContract.CalendarAlerts, CalendarContract.CalendarEntity, CalendarContract.Calendars, CalendarContract.Colors, CalendarContract.ColorsColumns, CalendarContract.Events, CalendarContract.EventsEntity, CalendarContract.ExtendedProperties, CalendarContract.Instances, and 95 others.

摘要(Summary)

常量(Constants)
`String`	`_COUNT` 目录中的行数。
`String`	`_ID` 一行的唯一ID。

常量(Constants)

_COUNT

Added in API level 1

String _COUNT

目录中的行数。

类型：INTEGER

常量值：“_count”

_ID

Added in API level 1

String _ID

一行的唯一ID。

类型：INTEGER（长）

常量值：“_id”