IOS

Load images with SDWebImage gradient, Loading images with SDWebImage gradient   Use For details about how to use the source code, you only need to specify an image address and a placeHolder image (not required.   Effect   Source

Static Library Creation and static library If you want others to use your code but do not want to expose your source code, you can use a static library. 1. Select Cocoa Touch Static Libraay for the new project 2. Drag the file to be packaged

Fingerprint Recognition, fingerprint recognition mobile phone Now, when both security and efficiency are required, ordinary passwords cannot meet our requirements, and fingerprint recognition is born. Everyone has their own fingerprint. When you

IOS10 adaptation-Xcode8 and ios10 adaptation-xcode8 Xcode8 was upgraded some time ago, which has little impact on the OC as a whole, but it still takes a lot of time to skip. Here we will summarize the adaptation problems. 1. Permission issues Xcode8

Common shortcuts for iOS development and ios shortcuts 1. Apple shortcut keys 2. Basic Xcode shortcut Create a project Shift + CMD + N Create a file CMD + N in the project Run CMD + R Compile CMD + B Stop running CMD +. Clear cache Shift +

IOS-GCD usage and iostag usage Preface For beginners, GCD seems to be an insurmountable hurdle. Many people gradually give up treatment in the whirlpool of terms of synchronization, Asynchronization, serial, parallel and deadlock. This article will

About rounding, rounding 1. Keep the last two decimal places NSString * leavemoney = @" 4661998.08 "; NSString * restinterest = @" 44818.1283 "; NSString * totalmoney = @ "16808934.4083 "; NSString * money = @" 38675 ";   Double leavemoneyDouble =

Measure the total number of lines of code in the iOS project and the number of lines in the ios project.   Open the terminal,   Use the cd command to locate the project directory, and then call the following name to count the number of lines

[Original] iOS learning Xcode8 does not print error messages on the console, iosxcode8 I upgraded my Xcode to 8 a few days ago, but when running the program, it will print a lot of useless information, such:Garbled characters printed when Xcode8

Add Cocoapods support and githubcocoapods support to the Code on Github.  Reprinted, please specify the original link: Success. See the cocoapods official website's support for adding, but the introduction of (ying) than (yu) than (tai) Simple (cha)

When Xcode8 prints JSON, The NSLog console displays incomplete, jsonnslog Why only a part of the printed results are printed ??? Why ??? I don't know why, maybe it's because of xcode8. I learned from foreign people that printf can print all of

Calculates the length of c characters, which must not exceed 2 ^ 30. Source code from sqlite3 /*** Compute a string length that is limited to what can be stored in ** lower 30 bits of a 32-bit signed integer. * *** The value returned will never be

YYStock open-source ---- iOS stock K-line drawing version 2, yystock ---- ios The new stock is rough. Welcome to watch star's statement (* ^__ ^ ...... The kneading function is also ready. Github: https://github.com/yate1996/YYStock Long-by-hour

Implement RSA encryption on the IOS client and rsa on the ios Client In the IOS app login module, if the user name and password are directly transmitted to the background server, it is easy to intercept and forge network requests, If the RSA

IOS debugging tool and ios debugging tool Instrument Xcode5 introduces a debugging instrument that intuitively shows the CPU and memory usage of the application. Run a program and click the meter bar. It can be found that when the program is

IOS learning and ios learning routes Ideas: 1. Create a singleton + (instancetype)shareManager { static CCPaomaView *pModel = nil; static dispatch_once_t once; dispatch_once(&once, ^{ pModel = [[CCPaomaView

Common Code blocks for iOS development (2): ios development codeGCD Timer Required queue = hour (hour, 0); dispatch_source_t timer = dispatch_source_create (hour, 0, 0, queue); hour (timer, dispatch_walltime (NULL, 0), 1.0 * NSEC_PER_SEC, 0); //

IOS memory error debugging (EXC_BAD_ACCESS), iosexc_bad_access Memory Error crash: Thread Stack: It may be caused by access to the released object. According to the field, no memory error is found for the specific object. 1. Enable zombie

The server enables https and https. Enable Tomcat https service When publishing enterprise-level applications, an issue occurs: After IOS7.1, the app URL must start with https, so the server must support https. Lab environment: Mac OSX, win7, Tomcat

Disable the xcode8 console to print unnecessary information. The information printed on the console is as follows: 10:13:17. 774543 LGLSearch-Dome [1656: 356106] subsystem: com. apple. UIKit, category: HIDEventFiltered, enable_level: 0,