IOS

IOS development: some experience for API developers of Yo   In "don't make developers unhappy ...」 The article mentions the importance of Developer Experience. A good developer experience allows developers to quickly create required services through

The text of the label in ios is displayed in multiple colors. 1. In the initialization method, add all labels with the keywords to be highlighted to the labels array and add the colors of these labels in the original font to labelTextColors. The

Notification Mechanism in ios programs and ios program notification mechanism Each application has an nsicationicationcenter instance to facilitate communication between different objects. Any object can publish a notification (NSNotication) to the

IOS development: Selection of delegate, notification, and KVO The delegate, notification, and KVO functions are similar. In actual programming, how can we choose these methods? When developing ios applications, we often encounter a common problem:

For .. in traversal, enumerator, for .. in traversal Enumeration # Pragma mark ------------ for looping through elements in the Set ------ // Create an array containing five string objects. Retrieve all elements in the array in reverse order and

IOS development: How to suspend the main thread However, in some cases, we want the main thread to wait for the IO operation to complete-for example, after the main thread creates a folder, wait for the completion and then create a file in the

IOS development: simple localization of Web Applications At present, most enterprise-level IOS applications mainly rely on reports and document approval, and the development trend of applications is bound to develop towards the Web. Although Native

Use objection for modular iOS Project Development Objection is a lightweight dependency injection framework. Inspired by Guice, Google Wallet is also used in this project. Dependency injection is a design pattern for Object-Oriented Programming to

How to disable ATS in iOS9 IOS9 increases system security. By default, you will find that the following error occurs when reading network data after a non-https URL is opened: The resource cocould not be loaded because the App Transport Security

Objective, object During data processing, because the object types are different, the corresponding data cannot be processed. Therefore, you must convert the data types, that is, NSNumber, the reason why NSValue occurs. In short, NSNumber is to

Converting iOS NSNumber to NSString description, nsnumbernsstring We often need to convert a number into a string. You can use description when you do not need to match other strings. 1/** 2 description Is NSObject. When the value 3 is NSNumber,

IOS: srand () and rand (), iossrandrand Srand (seed) is used to set the starting point of a random sequence to seedsrand (int) time (0), which indicates that the int value corresponding to the current time is the starting point of the random

Use UILocalNotification to implement an alarm (Swift) and uilocalnotification Previously, the project needed to implement an alert clock. I found it was old code on github for a long time, so I prepared to write one myself, just recently learning

Problems and solutions that are easy to encounter when ZBar is integrated, and the zbar solution is integrated 1. Add several necessary frameworks: Libiconv. tbd QuartzCore. framework CoreVideo. framework CoreMedia. framework AVFoundation. framework

Small notes, tomb theft note novels The system automatically releases an object when the object is created quickly. For example: NSDictionary * dic = [NSDictionary dictionary]; // The System Automatically releases the memory once, and the object

Use of Objective-c kvc and KVO, objective-ckvckvo Use of KVC In general, we use attributes or access methods to access instance variables. However, we can also use Key-Value-Coding (KVC) the value of the instance variable to be accessed by key-value

Meitu xiuxiu-beautify the image [Virtual background] interface design, xiuxiu Interface Design This article describes the background blur interface design. The background blur module of meitu xiuxiu mainly deals with image blur. The blurred image

Natural saturation of GPUImage filter and saturation of gpuimage Filter Natural saturation is the overall brightness of the image, and saturation is the brightness of the image color.The "saturation" option works the same as the "saturation" option

1.0 Quartz 2D introduction, 1.0quartz2d Introduction Quartz2D notes:   (1) Quartz 2D is Apple's official two-dimensional Drawing Engine. It also supports iOS and Mac OS X systems (cross-platform, pure C language) (2) The Quartz2D

Color temperature (white balance) and color temperature of meitu xiuxiu Filter Color temperature is the most common indicator of the spectral quality of the light source. In GPUImage, we use GPUImageWhiteBalanceFilter to implement Vertex