Why do I need to use raw accessor methods in Core Data projects?
I am reading about core data, please note the following:
By default, Core Data dynamically
creates efficient public and
Tag: method
iPhone – UisearchDisplayController – Click on the overlay, method call?
Is there a delegate method that will be called when the user clicks on the dark overlay, which will basically remove the first responder status from the UISearchDisplayController? (I can’t find one
Mac system modify environment variable method
The environment variables of the Mac system, the loading order is:
/etc/profile /etc/paths ~/.bash_profile ~/.bash_login ~/.profile ~/.bashrc
/etc/profile and /etc/paths are system-level, th
iPhone – Add multiple buttons to the view to the view, call the same method, determine which button it is
I want to programmatically add multiple UIButtons to the view-unknown number of buttons at compile time.
I can make one or more like this UIButton (in a loop, but shortened for simplicity):
Does MacOS – Does Mac OS have a way to create an anonymous file mapping?
In the UNIX world, the standard way to create a file mapping object supported by RAM or page files instead of disk files is to call shm_open. This will create a memory map with a name, and Return a
iPhone – Why is it in .m declared some methods instead .h?
I am using Xcode’s navigation-based application to create a new file, and I see that the .m file contains the following lines:
@interface RootViewController ()
– (void)configureCell:(UITableV
PowerDesigner16 Configuration Display Comment Comment Configuration Method
No matter 15 or 16. There is no configuration of displaying attribute field comments directly in the view, so the comments need to be displayed in an indirect way. The operation flowchart is as fol
PowerDesigner generates data structural diagrams and corresponding SQL export methods
1. Download powerDesigner
The link address is http://soft.onlinedown.net/soft/577763.htm
2. Open the software, file -> new project, create a new project; then create a new entity to bui
PowerDesigner16 does not show a comment comment _ solving configuration method
No matter 15 or 16. There is no configuration of displaying attribute field comments directly in the view, so the comments need to be displayed in an indirect way. The flow chart of the operation i
PostgreSQL – the best way to make a large number of updates to the index set
The context of this question is PostgreSQL 9.6.5 on AWS RDS.
The question is about a table containing 300 million rows of the following logical data model Best mode design and batch update st