Programmer Group

To clear the cache, we first need to know where to clear the cache, so we first need to know something about the files in an app.  How to view the contents of app files: Open Xcode - > Toolbar Window - > Devices - > Select Devices - > Click on the project (double-click can also be seen directly, wait for 10 seconds to appear) - ...

Why mix it up? Language development trend (TIOBE), Swift ranking continues to rise, OC ranking shows gravitational decline. Normal Iteration Requirements for Projects Many third-party libraries still use OC implementations Modules previously implemented with OC in the project will cost a little more if they are rewritten with Swift We need ...

This article is translated from Apple Documents There are deletions and additions. If you don't understand Block syntax, you can refer to fucking block syntax, which is for Block. For comparison purposes, I assume that the following code is written in the ViewController subclass 1. Part I Define and use Block, - (void)viewDidLoad {     [su ...

Detailed description of SwiftLint code specification attributes Attribute 1: weak_delegate. Agents should be written as weak types (weak agents) to avoid circular references For example: /// 1.1 Compiled through class Langke { var chenlong: NSObjectProtocol? } /// 1.2 Compiler passed, but triggered the weak_delegate warning of swift ...

For reprinting, please indicate the source: https://lizhaoxuan.github.io Preface In order to ensure the process of reading the previous chapters, we will summarize all the problems that Calabash encountered from the environment to the specific use. Most of them are pits that I actually experienced. At the same time, I will try my best to r ...

1. Call code to make APP go into the background and click the Home key. (Private API)    [[UIApplication sharedApplication] performSelector:@selector(suspend)]; Suspend means: suspend; suspend; suspend; delay; Second, URL processing with Chinese. For example, like the following URL, which directly contains Chinese, may not play, t ...

problem Look directly at the screenshots. Solution 1. Active Monitor Views APP Process Number PID 2. Viewing problems in terminal Use the command malloc_history PID address |grep address PID is replaced by process number, address is replaced by error address (xcode error address) 3. Look directly at the last line to locate t ...

How to switch xcode on Mac? Because of the need of learning, I installed two versions of Xcode on MAC, one is Xcode 7.3, the other is Xcode 8.3. But in some cases I need to switch the version of xcode, so I find out the following experience. 1. View the current version of xcode /usr/bin/cc --version Here I am: jhmdeiMac:~ jhm$ /usr/bi ...

Self-encapsulated LZMA interface library for unity, including dll of win platform, so dynamic library of Android and. a static library of iOS LZMA is currently the highest compression ratio compression algorithm. Official versions of LZMA are available in many languages. unity can use C# directly, but it has been proved ...

xcode.png ** This article is suitable for readers who have not uncovered the mysterious veil of runtime. When God sees the words here, he also hopes to throw some ink at his younger brother and increase his knowledge! ** Introduction to Runtime: It is a runtime library, basically written in C and assembly. Some work can be ...