Write it at the very beginning

In May 2021

  • Self-study iOS development, progress 0.15 (self-judged)
  • Have learned the basic syntax of OC and SWIFT
  • It can build an App with low requirements in pure code, realizing functions including page building, network access, database operation, Bluetooth configuration and so on
  • Able to see and use basic third party frameworks such as SDWeb, AFN, Masonary, Snapkit, FMDB and other known lazy frameworks
  • At present, I mainly study the projects in the hand of imitation writing and modification
  • A clear career position for the future is not clear

The purpose of this article

  • Review and review the learning content of nearly half a year, and summarize the pits and unsolved problems in this half year
  • Summarize UI aspects in terms of control categories
  • To apply requirements, summarize various encountered requirements and solutions
  • Prevention of forgotten potholes and corresponding solutions
  • Monitor your learning status

UI controls article

Before we talk about controls, we need to say the preparations for UI display in ios apps:

  • Size, coordinates for the parent control
  • Content, including pictures, data, text, etc
  • Display style, such as UILabel display text color, size, etc

UIImageView with UILabel

UIImageView with UILabel

UIButton with UITextField at

UIButton with UITextField at

UIScrollView

UIScrollView

UICollectionView

UICollectionView

UIPickView

UIPickView

UISwitch and UIProgressView

UISwitch and UIProgressView

UIAlertController

UIAlertController

WKWebView

WKWebView

Quartz2D

Quartz2D

CALayer, animation, gestures, events

CALayer, animation, gestures, events

The controller article

UIViewController

  • The most basic controller, put whatever you want to put, can be understood as a blank sheet of paper, right
  • Some of the Settings
/ / set the background color self. The backgroundColor = [UIColor redColor]; / / tile set the background of the self. The backgroundColor = [UIColor colorWithPatternImage: [UIImage imageNamed: @ "back"]]. // Add control [self.view addSubview: self.btn];Copy the code

Custom root controller and UINavigationController

Custom root controller and UINavigationController

UICollectionViewController and UITabBarController

UICollectionViewController and UITableViewController

UITableViewController

UITableViewController

Feature article

  • This section focuses on data retrieval functions, such as retrieving images, JSON, and so on
  • The general classification is based on plIST, database, network, etc

Read plIST and array model

Read plIST and array model

Access to the network

Access to the network

SQLite database

SQLite database

Data transfer between interfaces

Data transfer between interfaces

Bluetooth Bluetooth

Bluetooth Bluetooth

multithreading

Multi-threaded GCD Swift implementation

Storing local information

Storing local information

Third Party Framework

babyBluetooth

babyBluetooth

SnpaKit with Masonary

AFNetworking

SDWebImage

FMDB

System related

Obtain system-related information

  • Status bar height and navigation bar height
//swift let navHeight = navigationController? . NavigationBar. Frame. The size, height / / $0 closure said the first parameter let statusHeight = UIApplication.shared.windows.first{$0.isKeyWindow}?.windowScene?.statusBarManager?.statusBarFrame.size.height //oc CGFloat navHeight = self.navigationController.navigationBar.bounds.size.height; CGFloat statusHeight = [UIApplication sharedApplication].windows.firstObject.windowScene.statusBarManager.statusBarFrame.size.height;Copy the code
  • KeyWindow, which is the bottom view
//swift
UIApplication.shared.windows.first{$0.isKeyWindow}
//oc
[UIApplication sharedApplication].windows.firstObject;
Copy the code

other

Sharing app design ideas

The data processing

  • This section wraps up some of the data processing aspects encountered

The data processing

A few points

A few points

Modal jumps and view life cycles

Modal jumps and view life cycles

Sandbox directories

#import "NSString+ sendbox.h "@implementation NSString (Sendbox) // cache - (instanceType)appendCache{return [[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:[self lastPathComponent]]; } / / staging - (instancetype) appendTemp {return [NSTemporaryDirectory () stringByAppendingPathComponent: [to self lastPathComponent]]; } / / file - (instancetype) appendDocument {return [[NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:[self lastPathComponent]]; } @endCopy the code

shortcuts

CMD + CTRL + E Global modify CTRL + 6 directly enter, Support intelligent search and matching CMD + SHIFT + O Global search CMD + SHIFT + F Global search CMD + L Skip CMD + SHIFT + J Locate files CMD + OPTION + N Create folders CMD + N Create files CMD + SHIFT + N Create a new projectCopy the code

2021.7.6 Update diary

  • In the last month, the wave has been broken and the state is not right, but today, I can finally say that I have sorted out the content of OC except that of the third-party library intermittently
  • When I was writing a project, WHENEVER I forgot something and looked at the blog, I really felt a lot. Finally I wrote a Baidu, and I no longer had to look at the copy-paste pit
  • There are also some contents of SWIFT in it, and the parts with great differences between SWIFT and OC will also be sorted out
  • The next update doesn’t raise a flag, and it’s ready for the next new pit
  • Third party library update time, unknown