[技術] Android Sqlite 關閉 lock

暫時關閉sqlit方法
http://www.outofwhatbox.com/blog/2010/12/android-using-databaseutils-inserthelper-for-faster-insertions-into-sqlite-database/

sqlite 是否thread safe與multthread使用情況
http://stackoverflow.com/questions/6675240/is-sqlite-database-instance-thread-safe

mDb.yieldIfContendedSafely();http://stackoverflow.com/questions/5036939/how-to-properly-use-yieldifcontendedsafely-in-an-android-multithreaded-applica