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The original text was published by natural growth in the TesterHome community, click Original link Can communicate directly with the author.1, ForewordWhen using the ios devices of WeTest and Testin remotely, you will always feel that the operation is not smooth, because the mobile phone will Move only when you release the mouse. It should be ...

runtime and memory management of iOS What is it? To understand what runtime is, the description of official documents should be the most authoritative. The official definition is as follows: from compilation time and link time to runtime, Objective-C language will postpone decisions as much as possible. Whenever possible, it performs operatio ...

In normal development, we often receive such a demand: before uploading pictures, we need to compress the pictures to less than 100KB and make them as clear as possible. As an intuitive developer, we immediately divide three into five and get a compression factor: NSData *imageData = UIImageJPEGRepresentation(image, 0.8); (Why not UIImagePNGR ...

Demand summary: realize video dialing, answering, hanging up, video interface size window and click small window to realize the exchange of size window.Implementation idea: after one party dials, the other party should be able to receive the corresponding event and then answer. When connected, render the video picture of the other party. When w ...

Note that many non-native iOS applications call Face ID in the application to assist login and confirm privacy operations. Here is how to call Face ID or Touch ID. Get user privacy Similar to calling location and camera, first in info Add Face ID permission in plist Privacy - Face ID Usage Description Import header file Import library fil ...

I. overview Several concepts in HTTP network requestSend HTTP request in IOSHTTP request example II. Several concepts in HTTP network request 2.1 URL What is a URL The full name of URL is Uniform Resource LocatorThrough one URL, you can find the only resource on the InternetURL is the address and location of resources. Each resource on t ...

1. BackgroundWe know that the front-end domain locates the page according to the origin. To jump to the corresponding page, you only need to access the corresponding route, which is very convenient. However, there has been no concept of routing in iOS. To jump to a page, you need to create an instance of the target page, and then jump through t ...

1. Inherit //getter method, //The function is to assign the attribute passed in by the constructor to the encapsulated attribute in this class through the getter method, //Then the assigned attribute is sent out through the constructor //setter method, //The function is to call the setter method in this class through the calling method in other ...

preface A long time ago, I saw a summary article about the responder chain and event processing mechanism based on iOS. The comment said that simple UI event processing can be carried out through this mechanism. At that time, I didn't care much and didn't have a deep understanding. Later, when I summarized this piece of content, I wrote such a ...

NSObject is the root class of most class hierarchies in Objective-C. usually, when using NSObject objects, we will use [[NSObject alloc] init] or [NSObject new] to create object instances. Through this article, we will study the object creation process of NSObject together. initialization Call alloc mode When we call the [NSObject alloc] ...