IOS network analysis-(Introduction to third-party AFNetworking3.0 on November 11), iosafnetworking3.0
AFNetworking3.0 is the latest version. I was going to introduce it to 2.6, but I decided not to introduce it soon. Interested friends can check it
[Code Note] Get the current hard disk space, note the current hard disk space
I. Code.
-(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. NSFileManager * fm = [NSFileManager defaultManager]; NSDictionary *
NSURLConnection study notes, nsurlconnection
Although we now use third-party libraries to obtain network data, we will also use Apple's official NSURLSession, but some things need to be learned before they can be qualified to say no, isn't
[Swift] iOS UICollectionView: Cell size calculation trap, uicollectionviewcell
Preface
Problems caused by unfamiliar APIs may occur if you take it for granted. Here we record the use of UICollectionView.
Statement You are welcome to repost, but
Only the first time you enter the navigation view and the first navigation View
Only when the program is run for the first time can the program be deleted and re-run.
I only show the last image.
First create a viewcontroller class
Set the Root
IOS network analysis-(10 NSURLSession download Introduction), iosnsurlsession
I was planning to write two sections before, but I thought it was better to write one article when I started this article, which is helpful for understanding. NSURLSession
NSURLSession and nsurlsessiontaskIntroduction
Now NSURLConnection will be used less and less during development, and iOS9 has abandoned NSURLConnection. Now the lowest version is generally compatible with iOS7, so it can also be used.
Compared
Memory Management and Memory Management Software
======================================
Memory Management
======================================
[Q] What did memory management do?
How to create and release memory in oc.
Oc Memory
[Code Note] obtains the number of days of the current month and the number of days of the Code note.
I. Code.
# Import "ViewController. h "@ interface ViewController () @ end @ implementation ViewController-(void) viewDidLoad {[super viewDidLoad];
ViewController respondsToSelector error solution, mvcviewcontroller
Cause analysis: (analyze from others' blogs)A public class or a control provided by the system has a delegate method. When the container class that creates this public control has
IOS displays the UISegmentedControl and uisegmentedcontrol in the center of the navigation bar.
UISegmentedControl * segmentedControl = [[UISegmentedControl alloc] initWithItems: nil];
SegmentedControl. tintColor = [UIColor orangeColor]; // render
IOS development-Block causes loop reference solution
Memory problems have always been a top priority in software development, and are no exception in iOS development. They are also mandatory during interviews. Today we will focus on the circular
Check the actual network connection status in iOS: RealReachabilityPreface
Network Connection status detection is a common requirement for iOS app development. For better user experience, we will display local or cached content without a network,
IOS miscellaneous-7 (differences between class method load and initialize), iosinitialize
Before introducing the two methods, the NSObject Class Reference describes the two methods:
+ (Void) initialize
The runtime sends initialize to each class in a
Some Questions about iOS and ios
1. OC Memory Management Mechanism
1 ). when you create an object using the new, alloc, and copy methods, the reserved counter value of this object is 1. when you no longer use this object, you are responsible for
IOS-UICollectionView (original) and iosuicollectionviewPreface
UICollectionView is a new data display method. In short, it can be understood as a UITableView with multiple columns (please note that this is the simplest form of UICollectionView ). If
IOS -- Address Book (UITableViewController), uitableview address book
This article mainly implements some functions of the address book (group name, index, group name) and so on:
If you don't talk much about it, go first:
You need to import a
IOS- z2d easy to use (original), ios-quartz2d
Preface
What is Quartz2D?
Quartz 2D is a two-dimensional Graphics Rendering Engine that supports ios and Mac OS X environments. We can use the Quartz 2D API to implement many functions such as basic
This is the best answer I have ever heard.
Maybe I have never met the world, but this is what I have seen: "How to become a good programmer, not a good coders ?" The best answer: [copy and paste all]
In fact, my heart has been shaken by my current
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