IOS

[Code Note] Jump between pages, code note page Jump 1. Engineering Drawing. Ii. Code. RootViewController. m -(Void) touchesBegan :( NSSet *) touches withEvent :( UIEvent *) event {/* 1. If the animation UIViewAnimationTransitionNone 2 is not used,

NSMutableParagraphStyle/NSParagraphStyle and nsparagraphstyle // NSParagraphStyleAttributeName specifies the style of the paragraph (set the first line, line spacing, and alignment). You can see what attributes you need and what you want to

Scan QR code control encapsulation and control Encapsulation Encapsulation of QR code scanning controls   Effect   Source code Https://github.com/YouXianMing/Animations /// QRCodeView. h // QRCode // Created by YouXianMing on 16/7/7. // Copyright©2

Hide tabbar on iOS and tabbar on ios     -(Void) viewWillAppear :( BOOL) animated {NSArray * array = self. tabBarController. view. subviews; UIView * view = array [2]; view. frame = CGRectMake (0, [UIScreen mainScreen]. bounds. size. height,

[Code Note] rotating fan, code note rotating I ,. 2. Engineering Drawing. 3. Code. AppDelegate. m # Import "AppDelegate. h "// Add the header file # import" RoundDiskViewController. h "@ implementation AppDelegate-(BOOL) application :(

Xcode (linker command failed with exit code 1) Error summary, xcodelinker This problem usually occurs when a third-party library file or multiple developers are added. This problem is generally caused by a link error because the file cannot be found.

Block 6 points of attention and block 6 points of attention Block has always been a tangled and difficult-to-understand knowledge point for new OC partners. However, it will feel quite sour after a while. I will not repeat the principles and usage

The header files of the third-party library imported to CocoaPods are automatically filled, and the third-party coapodsCocoaPods has been used for some time to manage the Objective-c class library, which is quite convenient. However, there is a

[Code notes] drop-down options: cell and note drop-down cell I ,.   2. Engineering Drawing. 3. Code. RootViewController. h # Import // Add the header file # import "ComboBoxView. h" @ interface RootViewController: UIViewController {ComboBoxView *

Tableview left Slide button tableviewcell custom left Slide button, custom tableviewcell When using tableview, we usually need to display one or more buttons when the cell slides left, but the system only displays one button by default, such as the

IOS learning notes-scrollView and iosscrollview Scroll view: add the UIScrollViewDelegate protocol to the root view and declare some object attributes. @ Interface BoViewController: UIViewController // The Rolling view object @ property (retain,

Combined Sorting Algorithm in oc and oc combined Sorting Algorithm -(NSMutableArray *) zuHeSuanFa :( NSMutableArray *) array chooseCount :( int) m {int n = (int) [array count]; if (m> n) {return nil ;} // NSLog (@ "a combination of % d numbers from 1

Deep and light copy in objective-c, and objective-c copy Shallow copy: only copies the pointer to the object, instead of copying the reference object itself. Counter + 1, like retain Deep replication: Copies the referenced object itself. The counter

Obtain the longitude and latitude of iOS and obtain the detailed address through reverse Geographic Encoding.   _ LocationManager = [[CLLocationManager alloc] init]; // Expected longitude _ LocationManager. desiredAccuracy = kCLLocationAccuracyBest;

[Code Note] generates a solid color image by color, I ,. Ii. Code. RootViewController. m -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. UIImageView * imageView = [[UIImageView alloc] initWithFrame:

Implementation of slide bar effect, slide bar Implementation of slide bar Effect   Effect   Source code SideViewController in https://github.com/YouXianMing/iOS-Project-Examples /// ViewController. m // SideViewController /// Created by

NSSet and iosnsset for iOS notes I. Introduction What type of NSSet is actually the same as that of NSArray. It is used to store objects and belongs to a set. NSSet and NSMutableSet classes declare programming interface objects and unordered sets,

Complete iOS Learning Project, excellent animation examples favorites 3, ios examples Hi all:I offered the best iOS content for a week on time. Is it great to get twice the result with half the effort?Also, are there any children's shoes worrying

NSFileManager and NSFileHandle for iOS Learning ),1. File Manager (NSFileManager) 1> main functions and functions Main role: this class is mainly used to perform operations on files (create, delete, and rename files) and obtain file information.

Xcode installs the plug-in. Skip Bundles is incorrectly selected, and the Load Bundles method is re-displayed, xcodebundles This problem often occurs when installing the Xcode plug-in. The prompt selection or the English prompt is displayed.