The Gcdiscreetnotificationview class library function is to display a current state as a notification view without blocking the user from interacting with the device application.
Gcdiscreetnotificationview class Library Download address
The Assetslibrary framework provides a alassetslibrary class to help us access photos and videos under the management of photo albums, as shown in official documents.
if (!self.assetslibrary) {_assetslibrary = [[Alassetslibrary alloc] init];}
With
IOS-strong and copy, iOS-strongcopy
Strong and copy are commonly used modifiers. When to use strong and copy, the previous Code will be used first (the following code is directly written in ViewController );
Define two arrays
Cancel the animation (explicit animation) and cancel the animationCancel an animation during the animation process
As mentioned before, you can use-addAnimation:forKey:MethodkeyParameters are used to retrieve an animation after an animation is added.
IOS compilation process, ios CompilationCompilation process
The basic compilation process is divided into four steps:
Then, by parsing the xcode compilation log, we can find that xcode is compiled separately based on the target. The specific
UIScrollView, UICollectionView, and UITableView attributes and methods,
UIScrollView, UICollectionView, and UITableView
Relationship between them: UIScrollView is the parent class of UICollectionView and UITableView.
UIScrollView
A scrolling view
It allows you to quickly understand and master how to develop iOS skills and ios development skills.
First, you need to spend some time learning objective-C language. After all, this is the basis for iOS development (you can also try Swift, but
IOS gets the date n months after a date, and ios gets the date1. Give a time and a number. The positive number is the next n months, and the negative number is the previous n months;
1 -(NSDate *)getPriousorLaterDateFromDate:(NSDate *)date
Touch detection for 3D models in iOS11 AR scenarios, ios11ar
AR in the latest iOS11 is particularly popular. I also went to the Internet to find a few demos. The core code is nothing more than the following:
// AR view: displays the 3D interface
@
Let's take a look at a problem with IOS Memory leakage.
Many iOS developers are concerned about memory leakage. In actual development work, we need to know whether the program has memory leakage, and then find out which line of code has leaked
IOS local time, UTC time, timestamp, and other operations/get the current year, month, day, iosutc // Obtain the current time and convert it to a string
-(NSString *) dateTransformToTimeString {NSDate * currentDate = [NSDate date]; // obtain the UTC
Some knowledge points in AFNetworking 3.1.0, afnetworking3.1.0
# POST/GET requests
/*!
First, you must know that POST requests cannot be cached, and only GET requests can be cached. From a mathematical point of view, the GET result is idempotent,
Other iOS performance and iOS Performance
This article is a reference, because I have only studied these technologies, but they are not used in the project, nor have they been studied in depth, so they can only be used as one note.Network
IOS open-source project weekly report 0223, ios open-source project 0223
The ninth release of the iOS open-source project weekly, which was produced by OpenDigg, is coming. Our iOS open-source weekly report combines the high-quality open-source iOS
Getting started with iOS development☞OC language · note 8, iosocBlock)
1.1 What is block
Block is a special data type in iOS. (Variables, input parameters, and return values can be defined)
Block is a data type officially recommended by Apple. It
Cause of SSZipArchive decompression failure: ssziparchive Decompression
The reason why SSZipArchive fails to be decompressed is that, after the path is unzipped, the unzipping will fail again after the path is corrected, and the proxy method will
Two methods to determine whether the iPhone WiFi is enabled are connected to WiFi and iPhone WiFi
In iOS, the API used to query the network information of the current connection is CNCopyCurrentNetworkInfo.
This API is located in SystemConfiguration.
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