iOS featured source code
Real-time display of logs and quick modification of sandbox values for easy testing, support for shaking
Funny Magic Phone
Diversified UICollectionView, easy to achieve various complex layouts
popover view
iOS package native QR code scanning and generation
A beautiful, powerful iOS calendar component
One sentence to realize App mask guide operation prompt
iOS CoreData (2) version upgrade and database migration
Easily build WeChat chat framework
Easy Secure Login Keyboard for iOS
<br/> ## iOS Quality Blog##### [**iOS solves the problem that WeChat h5 payment cannot be directly returned to the APP**](http://www.code4app.com/blog-822415-1858.html) Due to the company's business needs, in order to save the time and manpower to apply for WeChat payment, the company decided to use WeChat h5 payment. This saves time, and at the same time, all APPs can use h5 payment in the future, which is convenient and fast. But the problem comes when you actually do it. When you pay successfully or cancel the payment, you will jump to the Safari browser, which is very embarrassing and has no user experience at all. At that time, I saw that Android could directly return to the APP,... [Read the original text](http://www.code4app.com/blog-822415-1858.html) ##### [**iOS development - actual UITableview Deep optimization**](http://www.code4app.com/blog-864937-1863.html) demo project demo project download address: https://github.com/YYProgrammer/YYTableViewDemo The low-performance version in the project is The tableview implemented by the conventional writing method, the high-performance version is the tableview after relevant optimization. Why does the tableView get stuck when sliding? We can imagine such a scenario: there is a teacher, student A, student B, a... [Read the original text](http://www.code4app.com/blog-864937-1863.html) ##### [**2018-iOS interview questions sharing**](http://www.code4app.com/blog-873055-1868.html) Interview question preview: 1. KVO implementation principle? 2. Tell me what you understand about the burial? 3. The principle of message forwarding mechanism? 4. Talk about your understanding of the weak attribute? 5. If the Controller is too bloated, how to optimize it? 6. How to handle security at the network layer in the project? 7. What are the processes before main()? 1. How does KVO work? The API documentation for KVO in Apple is as follows: Automatic key-val... [Read the original text](http://www.code4app.com/blog-873055-1868.html) ##### [**iOS - I don't care about data persistence* *](http://www.code4app.com/blog-822415-1875.html) Preface We always have a kind of year-round finding that we have not done anything, and a year has passed like this. Since I paid attention to an author named Xiaoduo, there are too many inspirational chicken soup for the soul. For this reason, I have learned a lot from the article. In fact, I think that not wasting life is to strive to achieve a better self, and it is not in vain. The world walks this day. Contents 1. What is Persistence 2. What is Sandbox 2.1 Introduction to Sandbox and Get Sandbox Path 2.2 Documents2.2 L... [Read the original text](http://www.code4app.com/blog-822415-1875 .html) ##### [**iOS WeChat memory monitoring analysis**](http://www.code4app.com/blog-822715-1881.html) WeTest guides the current mainstream memory monitoring tool for iOS is Instruments Allocations, but only for the development phase. This article describes how to implement an offline memory monitoring tool for finding memory problems after the app goes online. FOOM (Foreground Out Of Memory) means that the app is forced to kill by the system due to excessive memory consumption in the foreground. For users, performance is the same as crash... [Read the original text](http://www.code4app.com/blog-822715-1881.html) <br/> - [**More source code**]( http://www.code4app.com/code.php) html) Preface We always have a kind of year-round that we find ourselves doing nothing, and the year just goes by. Since I paid attention to an author named Xiaoduo, there are too many inspirational chicken soup for the soul. For this reason, I have learned a lot from the article. In fact, I think that not wasting life is to strive to achieve a better self, and it is not in vain. The world walks this day. Contents 1. What is Persistence 2. What is Sandbox 2.1 Introduction to Sandbox and Get Sandbox Path 2.2 Documents2.2 L... [Read the original text](http://www.code4app.com/blog-822415-1875 .html) ##### [**iOS WeChat memory monitoring analysis**](http://www.code4app.com/blog-822715-1881.html) WeTest guides the current mainstream memory monitoring tool for iOS is Instruments Allocations, but only for the development phase. This article describes how to implement an offline memory monitoring tool for finding memory problems after the app goes online. FOOM (Foreground Out Of Memory) means that the app is forced to kill by the system due to excessive memory consumption in the foreground. For users, performance is the same as crash... [Read the original text](http://www.code4app.com/blog-822715-1881.html) <br/> - [**More source code**]( http://www.code4app.com/code.php) html) Preface We always have a kind of year-round that we find ourselves doing nothing, and the year just goes by. Since I paid attention to an author named Xiaoduo, there are too many inspirational chicken soup for the soul. For this reason, I have learned a lot from the article. In fact, I think that not wasting life is to strive to achieve a better self, and it is not in vain. The world walks this day. Contents 1. What is Persistence 2. What is Sandbox 2.1 Introduction to Sandbox and Get Sandbox Path 2.2 Documents2.2 L... [Read the original text](http://www.code4app.com/blog-822415-1875 .html) ##### [**iOS WeChat memory monitoring analysis**](http://www.code4app.com/blog-822715-1881.html) WeTest guides the current mainstream memory monitoring tool for iOS is Instruments Allocations, but only for the development phase. This article describes how to implement an offline memory monitoring tool for finding memory problems after the app goes online. FOOM (Foreground Out Of Memory) means that the app is forced to kill by the system due to excessive memory consumption in the foreground. For users, performance is the same as crash... [Read the original text](http://www.code4app.com/blog-822715-1881.html) <br/> - [**More source code**]( http://www.code4app.com/code.php) html) WeTest Introduction The current mainstream memory monitoring tool for iOS is the Allocations of Instruments, but it can only be used in the development stage. This article describes how to implement an offline memory monitoring tool for finding memory problems after the app goes online. FOOM (Foreground Out Of Memory) means that the app is forced to kill by the system due to excessive memory consumption in the foreground. For users, performance is the same as crash... [Read the original text](http://www.code4app.com/blog-822715-1881.html) <br/> - [**More source code**]( http://www.code4app.com/code.php) html) WeTest Introduction The current mainstream memory monitoring tool for iOS is the Allocations of Instruments, but it can only be used in the development stage. This article describes how to implement an offline memory monitoring tool for finding memory problems after the app goes online. FOOM (Foreground Out Of Memory) means that the app is forced to kill by the system due to excessive memory consumption in the foreground. For users, performance is the same as crash... [Read the original text](http://www.code4app.com/blog-822715-1881.html) <br/> - [**More source code**]( http://www.code4app.com/code.php)
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