IOS

Two Methods for iOS to immediately reflect changes in Settings Bundle in the App In order to be able to reflect changes in the Settings Bundle immediately after entering the App, we must firmly hold a position: that is, when the App enters the

IOS development: multithreading NSThread and NSInvocationOperation Multi-threaded programming is the best way to prevent the main thread from being congested and increase the running efficiency. The original multi-threaded method has many problems,

Usage and function of dispatch_apply in GCD, gcddispatch_apply Usage and function of dispatch_apply in GCD (1) Basic usage of dispatch_apply The dispatch_apply function is the Association API between the dispatch_sync function and the Dispatch Group

IOS development: FMDB data storage Analysis FMDB Is Object-Oriented. It encapsulates the C language API of SQLite in OC mode, which is more convenient to use and does not require much knowledge about database operations. However, it also has some

IOS development: Git Process   　　Git process in iOS development I believe that the advantages of Git are no longer mentioned in detail. It is not the same as that of SVN. I used to drag files for development by many people before and cooperate with

Hide the status bar (UIStatusBar) and ios7.0uistatusbar after iOS7.0 Symptom: After the upgrade to iOS7, the appearance of UIStatusBar will lead to a mess of the existing UI. Cause: The code that originally hides UIStatusBar does not

Several methods for creating and using multithreading and Multithreading I have recently learned a multithreading technology. I want to list it based on my own understanding. I hope I can share with you that multithreading is a method that can save

IOS development: Detailed description of UIView Animation The work required to execute an animation is automatically completed by the UIView class, but you still need to notify the view when you want to execute the animation. To do this, you need to

IOS development: strong, weak, etc. Now let's look at the New Keyword strong, weak, unsafe_unretained in iOS5. it can be similar to learning strong and retain corresponding to previous keywords. weak and unsafe_unretained functions are similar (a

NSSortDescriptor objects are sorted by arrays and js objects are sorted by arrays. // Create an array NSArray * array = @ [@ "zhangsan", @ "lisi", @ "zhonger", @ "zhubada", @ "honghunag"]; // Create a sorting condition, that is, an NSSortDescriptor

[IOS] edgesForExtendedLayout, automaticallyAdjustsScrollViewInsets,   After IOS7, ViewController starts to use full screen layout, and the default behavior usually involves layout. EdgesForExtendedLayout is an attribute of the uiextendedge

IOS development: Cocoa classes and objects We can find the definition of class and object in/usr/include/objc. h and runtime. h: Typedef struct objc_class * Class; Typedef struct objc_object { Class isa; } * Id; Class is a pointer of the objc_class

Some Understanding about block itself in OC (1), ocblock understanding 1. block 1. block: save a piece of code. 2. A syntax officially recommended by Apple. It is similar to a C-language function, but it is more flexible than a function. 3. ^

IOS apps from Xcode support both landscape and landscape, and iOS apps It depends on whether an application supports both horizontal and vertical screens. It depends on the settings of the info. plist file in Xcode. Each new project contains three

-All_load option when compiling iOS program, and-all_load issues caused by ld duplicate symbol xx, ios-all_load When debugging the Baidu map application in the new SDK environment, the app always unexpectedly exits. The reason why the error was

Basic knowledge of IOS development-fragment 34, basic knowledge of ios-34 1: The third-party plug-in SKSTableView has a crash issue in IOS7.1.1. Solution: Modify the internal source code: (NSInteger)subRow{id indexpath = [NSIndexPath class];id

Positioning of CLLocationManager and cllocationmanager in Ios development The positioning function in Ios is implemented through the Core Location framework. It is independent of the map development framework. The Core Location mainly provides the

IOS adds the jitter effect to the view and ios view adds the jitter The jitter effect is rarely used in development, but sometimes it has a good installation effect, such as some user error operations. The effect is as follows, but the effect of gif

Network Programming for iOS development-1. Basic use of NSURLSession and iosnsurlsession Before learning how to use NSURLSession, I should first learn a good article about NSURLSession, From NSURLConnection to NSURLSession, or a Chinese translation

IOS animation ring progress bar and ios ring progress bar This article describes how to implement a ring progress bar with animation effects. To achieve this, you can only draw Method to directly view the code To facilitate multiple calls, use the