a sqliteconnection object for databasewas leaked

android 开发过程中，登陆后，退出，来回超过4次以后，点击退出登陆，页面就不动了。就不能退出登陆了。
LogCat:
A SQLiteConnection object for database '/data/data/com.zoe.shortcake_sf_doctor/databases/SHORTCAKE' was leaked! Please fix your application to end transactions in progress properly and to close the database when it is no longer needed.

GC_FOR_ALLOC freed 381K, 53% free 10521K/21968K, paused 6ms, total 8ms

eglSurfaceAttrib not implemented