数据库异常android.database.sqlite.SQLiteDiskIOException: disk I/O error (code 1802)

遇到的一些SQLite异常

android.data .sqlite.SQLiteDiskIOException: disk I/O error (code 1802)

原因：The SQLITE_IOERR_FSTAT error code is an extended error code for SQLITE_IOERR indicating an I/O error in the VFS while trying to invoke fstat() (or the equivalent) on a file in order to determine information such as the file size or access permissions.

具体来说，比如存储空间不足、文件读写权限不够，或者多线程操作（SQLite不支持多线程同时操作，自己枷锁）。

SQLiteDiskIOException: disk I/O error (code 3850):

The SQLITE_IOERR_LOCK error code is an extended error code for SQLITE_IOERR indicating an I/O error in the advisory file locking logic. Usually an SQLITE_IOERR_LOCK error indicates a problem obtaining a PENDING lock. However it can also indicate miscellaneous locking errors on some of the specialized VFSes used on Macs.

报此异常，一般就是多线程操作数据库时逻辑上的问题导致了锁异常。

这种情况就要注意了，即便是一个db文件里边用了多个表格，不同的表，不同的表也不能同时操作。