IOS

Obtain the current hard disk space. Code: -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. NSFileManager * fm = [NSFileManager defaultManager]; NSDictionary * fattributes = [fm failed: NSHomeDirectory ()

In iOS, there is a letter search and click on the Right of Tableview to directly locate the problem.During project creation, I encountered such a problem that tableview calls -(NSArray *) sectionIndexTitlesForTableView :( UITableView *)

IOS: Set UILabel line spacing for instances // Create UILabel * label = [[UILabel alloc] initWithFrame: CGRectMake (7, 5, TABLEVIEW_WIDTH-HEADIMGVIEW_HEIGHT-20-24-20, 0)]; // automatically wrap the label. numberOfLines = 0; // set the label content

IOS Experience 1: Self-written network data requests to a third-party framework for resumable upload/download Brother Huang is a project. Generally, no matter how complicated a data request is, as long as the request has been written, the call will

Combine multiple images in the album into one image and one image in the album.   Code:   -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. NSArray * imgArray = [[NSArray alloc] runtime: [UIImage imageNamed:

If you upload an ID card number, you can return the birthday string and ID card number string.   Code: -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. NSString * birthDay = [self

[Basic iOS control and basic ios ControlA. requirement 1. based on the LOL hero list, add the real-time modification feature to it. 2. use UIAlertView3. global reloadData4. partial refresh 1 // 2 // Hero. h 3 // LOLHero 4 // 5 // Created by

UITextField sets the placeholder color, uitextfield : Code: -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. UITextField * textField = [[UITextField alloc] initWithFrame: CGRectMake (50,100,200, 50)];

[Basic iOS control and basic ios ControlA. Basic Attributes and methods to be mastered Set dataSource and delegate of UITableView Display of multiple groups of data and single group of data in UITableView Common attributes of UITableViewCell

[Basic iOS control and basic ios ControlA. requirement 1. use TableView with only one section to display the LOL hero List 2. the content includes the title, subtitle, and icon. use plain style 4. use MVC mode 1 // 2 // Hero. h 3 // LOLHero 4 // 5 //

Zooming the image, and capturing the middle position. zooming the image Code: -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. UIImage * imagePicture = [UIImage imageNamed: @ "1.jpg"]; UIImageView *

[Basic iOS control and basic ios ControlSource image: 900x1305 1 // 2 // ViewController. m 3 // ImageZoom 4 // 5 // Created by hellovoidworld on 14/11/28. 6 // Copyright (c) 2014 hellovoidworld. all rights reserved. 7 // 8 9 # import "ViewController.

Floating cloud (BGMovingComponentDemo), component   : Engineering Drawing: The file package to be imported is BGMovingComponent. Code: # Import "RootViewController. h "// Add the header file # import" BGMovingComponent. h "-(void)

When you click cell, the animation effect is clicked. : Engineering Drawing: Code: RootViewController. h #import @interface RootViewController : UIViewController{ UITableView *myTableView;}@end   RootViewController. m # Import

After xcode archive, the system prompts that the icon, xcodeicon, cannot be found. Archive found that some icon Suffixes in the package were changed from png to tiff, so the system prompts that the icon cannot be found. The following are the

Addtarget and iosaddtarget in ios 1. addtarget. Some use events do not have a direct operation method and need to be called. AddTarget is required. -(Void) setupCustomView { Self. customView = [[CHView alloc] init]; Self. customView.

[Basic iOS control and basic ios ControlA. disadvantages of using dictionaries to load data 1. the User specifies the key by himself, which is prone to errors. 2. key is required for both storage and retrieval, which is easy to confuse B. model

Two methods are used to verify the validity of the mailbox (latest ). Code:   -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. self. title = @ "verify the legitimacy of the mailbox"; // the most

IOS UIPageView and UIScrollView In iOS development, we will certainly use something similar to the welcome interface. You need to flip the page and the following tips. In iOS, the page turning effect is UIScrollView, while UIPageView only adds the

Understanding of heap and stack in iOS, iosheap The computer memory used by applications in iOS is not uniformly allocated. the space used for running code is divided into three segments in three different memory regions: "text segment", "stack