IOS

background Application 100% Loss completely failed to start and crashed. Completely cut off the network connection normal boot, debugging mode state of waiting time is very long, but can be started, and with the UI micro-card. A strong feeling that

Memory leaks are a common problem in iOS development, where common memory detection methods are sorted out. a static detection method Using the Xcode analysis feature, Product->analyze Using static detection, you can check out some obvious memory

When we rewrite the Init method of the parent class, we do not notice that the first letter after Init is written in lowercase, and in this method it calls the initialization method of the parent class (self = [super init];) and the error message

Method One: You have two options to create at the beginning of the nsmutableurlrequest and load, with Web view loadreqest or take over your application with Nsurlprotocol full URL loaded. The easiest way to do this is to have the first choice of

Transfer from: http://www.cnblogs.com/wendingding/p/3766347.html top iOS Development UI article-common project documentation Introduction I. Schematic diagram of project document structure Second, File introduction 1.products folder: Mainly for

Unity Export iOS Project how to reduce running memory, installation package (IPA), and post-installation size (introduction) Recently, the project encountered some problems, because the project has more color picture material, size is also

Their previous projects, in the submission of the App store when uploading with itunes connect the IPA package is always the operation can not be successful, wasted a lot of time or did not upload success, so on a different way to upload, is

#import #import @interface uiview (Shape) -(void ) Setshape: (cgpathref) shape; @end #import "Uiview+shape.h" @implementation UIView (Shape) -(void) Setshape: (cgpathref) Shape { if ( Shape = = nil) { self.layer.mask = nil;

After IOS7, the system provides two ways to manage the status bar: 1. Through UIApplication management (the entire application's status bar is managed by it) 2. Through Uiviewcontroller management (each uiviewcontroller can have the unused status

Local navigation bar color settings Set navigation bar color self.navigationController.navigationBar.barTintColor = [Uicolor colorwithred:78.0/255 Green : 238.0/255 blue:218.0/255 alpha:1.0]; Set navigation bar text color white

We are now on the shelf iOS app is usually used in Apple's application Loader application Loader, this tool is very good to help developers on the shelves, but this tool can only be used on the Mac computer, restricting the use of the environment.

Block provides us with a very convenient way to implement various values and callbacks Reasonable use of block reduces the amount of code and more elegant implementation capabilities Now do a small collation as follows: #pragma mark about

Today, while doing the real machine debugging, I encountered one of the following problems: Could not locate device support files. This is the IPhone 6s is running IOS 11.1 (15b93), and which may isn't supported by this version of Xcode. It means

Preface I believe many people are saying that the iOS industry is not good, iOS is now getting more and more difficult, the unemployed people than the job search for more. Unemployment is the equivalent of a career change, which is tantamount to

first, let's comb the bottom concept of the runtime, and if you want to see how it can be turned to the bottom. Brief Introduction Runtime is also called runtime, is a set of low-level C language API, which is one of the core of IOS internal, we

A. Class field bindings In Wcdb, ORM (Object relational Mapping) refers to a OBJC class that maps to tables and indexes of a database, and maps the property of a class to a field in a database table; This process. Through ORM, we can achieve

1, the recent good engineering code suddenly emerged a crash Bug,a class crash log as follows: 2015-06-03 11:42:53.807 dpscope[86379:1639651]-[a Settitlecell:]: Unrecognized selector to sent instance 2015-06-03 11:42:53.815 dpscope[86379:1639651] *

[Reading Notes] iOS-deep anatomy of peer-to-peer networks, Reading Notes ios- The Protocol itself is a custom protocol running on UDP. I decided to use a custom protocol as simple as that. First, the current task seems simple enough, so it is easier

IBoot source code leakage of key iOS components and iosiboot source code Leakage Yesterday (February 7), an anonymous developer uploaded the source code of the iOS Core Component on GitHub, which may facilitate hackers and security researchers to

Mac iOS com. apple. CoreSimulator. SimDeviceType. undefined, The project is successfully compiled in the command line, but cannot be directly run to the simulator. the following error is prompted: No target specified for emulator. deploying to