IOS

IOS UI CodeSnippetUILabel {UILabel * lb = [[UILabel alloc] initWithFrame: CGRectZero]; lb. autoresizingMask = UIViewAutoresizingFlexibleWidth; _ lbEmptyInfo = lb; lb. frame = CGRectMake (100,100,100, 14); lb. textColor = COLORRGB (0x1e1e1e); lb.

[Reading Notes] iOS network-use Bonjour to implement a self-organizing network, iosbonjour Bonjour is a technology in which a device can easily detect and connect to other devices in the same network. The entire process requires only a small number

Error in sha1 encryption of oc ios Chinese strings ?, I found an oc-version encryption tool on the Internet, but there is a big problem in encrypting Chinese. Const char * cstr = [self cStringUsingEncoding: encoding]; NSData * data = [NSData

Full Screen preview for IOS single image, full screen ios Preview If you are tired, it is because you are on the uphill .. This sentence seems a bit reasonable. I often remind myself not to forget why I set out wherever I went. Sometimes you can

Operations on UIImage: operations on UIImage 1. Generate a UIImage object with a specified width (oldImage is the original image object and newImage is the image object after the operation) // Parameter 1: image size parameter 2: transparent (NO

Objective-c series-dynamic type and dynamic binding, objective-c binding /* Static type: The variable type is determined at compilation. Dynamic type: The object type is determined by a structure data in the object's memory, Instead of the Data Type

IOS encryption-MD5 encryption, ios encryption-md5 Let's not talk much about it. Go to the code! In MyMD5.h # Import @ interface MyMD5: NSObject {}+ (NSString *) md5: (NSString *) inPutText; @ end In MyMD5.m # Import "MyMD5.h" # import

Custom uitableviewcell and uitableviewcell Create a subclass inherited from uitableviewcell Customize the xib style and specify its reuse identifier Configure cell data # Import @ interface CellStyleTwo: UITableViewCell // employee ID @ property (

Posticationicationname: message transmission details; postNotificationName1. Define the association value of the message creation, that is, the identifier for finding the Method NSString * const GameToIPhoneNotification = @ "GameToIPhoneNotification"

GCD thread deadlock GCD is really easy to use and powerful. Compared with NSOpretion, GCD cannot cancel tasks. If such a powerful tool is used badly, a thread deadlock may occur. The following code: - (void)viewDidLoad{ [super viewDidLoad];

IOS9 system sharing call (UIActivityViewController)   Some netizens said yesterday that the system shared code I wrote had a warning on iOS9. After reading the original ios8.UIPopoverControllerAbandoned. The newly added

Objective-c series-NSMutableArray, objective-c**************************************** * *** // Variable array constructor // The definitions in the following two sentences are immutable // NSMutableArray * marray1 = [[NSArray alloc] init]; //

Objective-c series-NSMutableString, objective-c **************************************** ****** NSMutableString is a subclass of NSString. In addition to the parent class method, NSMutableStirng also has some addition, deletion, modification, and

Weekly essays-15.11.08 and essays-15.11.08  New knowledge point record for one week (15.11.08) I, About Hidden , Alpha , Opaque Description All three are attributes of UIView: Hidden: YES or NO. If YES, the UIView object is hidden and NO response

OC, oc Language # NSURLRequest NSURLRequest encapsulates the data required for a network request, and mainly encapsulates the following information: Request Path (URL) Request Method (GET or POST) Request Header Request body

Not long ago, a swift project used uicollectionview to load images with sdwebimage. In the case of a sharp increase in memory and a direct crash, the solution was briefly described ., Swift uses sdwebimage 1. First, in the appdelegate method

Weekly essays-15.11.02 and essays-15.11.02New knowledge point record for one week (15.11.02) 1. Create a tableViewCell on the storyboard Create a tableView on the storyboard. Use UITableViewController as the container, and use UIViewController as

Analysis of nsuserults ults in iOS user preferences NSUserDefaults is a lightweight data storage mechanism. For details about how to use it, refer to iOS project development practices-use user preferences data API storage information, iOS project

IOS checks whether a url schemes is set in the ApplicationRecently, another application A needs to jump to our B (with url schemes set) and then return to, when A is returned, A needs to set A url schemes to redirect B to. However, after A jumps to

Sharing the UISearchController search bar UI Technology in iOS UISearchController inherits from UIViewController // In iOS 8.0 and later versions, you can use UISearchController to conveniently add search boxes to UITableView. in earlier versions,