Caused by: java.lang.IllegalStateException: Cannot perform this operation because the connection pool has been closed. at android.database.sqlite.SQLiteConnectionPool.throwIfClosedLocked(SQLiteConnectionPool.java:962) at android.database.sqlite.SQLiteConnectionPool.waitForConnection(SQLiteConnectionPool.java:599) at android.database.sqlite.SQLiteConnectionPool.acquireConnection(SQLiteConnectionPool.java:348) at android.database.sqlite.SQLiteSession.acquireConnection(SQLiteSession.java:894) at android.database.sqlite.SQLiteSession.executeForCursorWindow(SQLiteSession.java:834) at android.database.sqlite.SQLiteQuery.fillWindow(SQLiteQuery.java:62) at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:143) at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:133) at android.database.AbstractCursor.moveToPosition(AbstractCursor.java:196) at android.database.AbstractCursor.moveToNext(AbstractCursor.java:244)
数据库操作的异常Cannot perform this operation because the connection pool has been close
原文：http://www.cnblogs.com/yiguobei99/p/4011071.html