Posts

These days I meet some problems about the GC mechanism in JVM, and I found some good articles to learn the detail of JVM management. Java memory management white paper http://www.oracle.com/technetwork/java/javase/memorymanagement-whitepaper-150215.pdf Optimzie GC …

Sometimes, I feel the confused while dealing with the binary search problem, especially when facing the problem to find the first or last occurrence index to meet certain requirements and I felt so ashamed. After reading the post from canhazcode, I find we can use another way to solve the binary …

I found an article about the Mach-O executable run on iOS and OS device. From that article, I picked up some interestings thing about what the compile does and what’s inside such an executable. What puzzled me most in this article is the section of ’lazy load’ & ‘unlazy …

I met some problem when inserting items & sections to a UICollectionView today, and I found something I missed when using UICollectionView whose layout is kind of flowlayout at first.

Request is to commuicate with SharePoint Server using iOS, the version of SharePoint is SharePoint 2013

I get a crash log 'Error - null [reason] - Statement is still active' in today project, then I found it is about the problem caused when using the same NSManagedObject in two separate thread.

https://www.youtube.com/watch?v=qOVAbKKSH10&t=91s https://www.youtube.com/watch?v=HneatE69814