lynda ios app development

= YES;//Notfirstuse = [dic[@ "Notfirstuse"] boolvalue];//if (!notfirstuse) {//Nsdictionary *dic = @{@ "Notfirstuse": @YES};//[dic Writetofile:filepath Atomically:yes];//Firstuseviewcontroller *VC = [[Firstuseviewcontroller alloc] init];//Self.window.rootViewController = VC;//}else {//Launchviewcontroller *VC = [[Launchviewcontroller alloc] init];//Self.window.rootViewController = VC;// }////using Nsuserdefaults to achieve if(! [[NsuserdefaultsStandarduserdefaults] boolforkey:@"Firstlaunch

First introduce myself, I am from Guangzhou's iOS program ape, 2 years of work, have not written blog what. For the first time, I want to write something, record what I learned and sentiment. Today after reading an article in the middle of the night, I also want to write an article, although I do not know what I want to write, how to write .... Well, let's get the app online!There are two ways to get your

Uiviewcontroller (Uinavigationcontrolleritem)@property (Nonatomic,readonly,retain) Uinavigationitem *navigationitem;@property (nonatomic) BOOL hidesbottombarwhenpushed;@property (Nonatomic,readonly,retain) Uinavigationcontroller *navigationcontroller;@endThe attributes added here do not automatically generate instance variables, and the attributes added here are actually added getter and setter methods.Note that anonymous categories (anonymous extensions) can add instance variables, and non-ano

are obtained after the decompile:Anti-compilation with Class-dump Class-dump-h to crack the executable path-o hack after the header file storage path Get files that are not obfuscated by code:You can see that there are some. h files in the project, open to see the full method name ....Then the client said the test company said it wasn't safe ...Code obfuscation required ...In the PCH file, reference GBConfuse.h:RePack: Can get confused after the. IPA.Here is the result of the conf

) { Let Updateurl:url = Url.init (string: "http://itunes.apple.com/app/id" + appId)! UIApplication.shared.open (UpdateUrl, Options: [:], Completionhandler:nil)}//no longer prompted for Func Noalertagain () { Let Userdefaults = Userdefaults.standard Userdefaults.set (true, Forkey: "No_alert_again") userdefaults.s Ynchronize ()}//jsonstring to dictionary func getdictfromstring (jstring:string), nsdictionary {let Jsondat A:data = Jst

iOS Development UI article-use Xib custom UITableViewCell to implement a simple Buy app interface layoutI. Project document structure and plist fileSecond, the realization effectThird, code example1. Instead of using the companion class, use the Xib file control tag value operation directlyData Model section:YYtg.h file1//2// YYtg.h 3// 01-Group Purchase data d

IOS 11 Development Tutorials (14) IOS11 App code add viewWhat if the developer wants to add views to the main view using code? The following will solve this problem for developers. To add views to the main view using code, you need to implement 3 steps.(1) Materialized View objectEach view is a specific class. In Swift, it is often said that a class is an abstrac

IOS development-improves APP smoothness (stock quotes) and iosapp In the past few days, I made an app to view the stock market. After the completion, when there are many K lines, the app's reaction to kneading and dragging gestures is not smooth, The main reason is that drawRect: it takes more than 40 ms to work too

IOS development uses Picker View to implement an App for Image Browsing Today, we will make a simple selection through the Picker View control, and then display the image App on another interface. The main module consists of two parts: the use of the Picker View control and data transmission between the two interfaces.

) Methodtoinvokeifsomethinghappensname: (NSString*) name//Name of station (a constant somewhere)Object:(ID) sender;//whose changes you ' re instertsted in (Nil is anyone ' s)//you 'll then being notified when there is broadcasts-(void) Methodtoinvokeifsomethinghappens: (Nsnotification *) notification{Notification.name//The name passed aboveNotification.Object //The object sending you the notificationNotification.userinfo//notification-specific Information about what happened} 10.Be sure to ' tun

IOS8 before:UIApplication *app = [UIApplication sharedapplication];App.applicationiconbadgenumber = num;IOS8 and later:Uiusernotificationsettings *settings = [Uiusernotificationsettings Settingsfortypes:uiusernotificationtypebadge Categories:nil];[[UIApplication sharedapplication] registerusernotificationsettings:settings];It needs to be set before it can be done. And, it needs to be noted that iOS8 before, can not take it, iOS8 and later must take it

The User Guide is displayed when iOS development is started for the first time, and the App, UIScrollView, UIPageControl, NSUserDefaults, and uipagecontrol are directly started for the second time. First, create a controller class for the bootstrap chart.UserGuideViewController. h and UserGuideViewController. m #import # Import "UserGuideViewController. h "@ int

Development of Popover's color palette app on iOS ipad _ other widgets can still interact after popover is displayed I. Effect The following is the xcode console.Ii. Code ViewController # Import ViewController. h # import ColorsViewController. h @ interface ViewController () -(IBAction) buttonClick :( UIButton *) btn; @ property (nonatomic, weak) UIButton

*appicon size* Not all appicon are required to be configured* Try not to be transparent-(transparent, will appear on the desktop as background black)1 If you do not configure the 5s start-up diagram, go back down, find 4s, will be the interface with 4s boot diagram size display, the printed point coordinate system is also 4s2 If there is no start-up diagram configured 6, will look down, find the 5s figure, the 5s TuradaIf you do not configure the 6plus start diagram, and do not configure 6, will

it via the Uitableviewcontroller @property (strong) Uirefreshcontrol *refreshcontrol; Start it with...-(void) beginrefreshing;Stop it with...-(void) endrefreshing; 11.What If your Model changes?-(void) reloaddata;Causes the table view to call Numberofsectionsintableview:and Numberofrowsinsection:all over again and then Cellforrowat Indexpath:on each visible cell. Relatively heavyweight,but if your entire data structure Changes,that ' s what you need. If only part of your Model Changes,there is

Ios: one app starts another app, and ios starts another app Problem description: You need to be able to start another ios application from one ios application.

1. afnetworking Among the many iOS open source projects, afnetworking can be described as the most popular library project for developers. Afnetworking is a lightweight iOS, MAC OS x network communication Class library, and now is the third largest objective-c library on the GitHub. It is based on Nsurlconnection, nsoperation and other libraries, so that many of the network communication functions to ach

make a comprehensive change. After the final decision, the customer will be required to pay 50% of the total cost.After that, the production company will make according to customer requirements, according to the application development complexity, the process will be in half a month to several months. After the success of the app, it will enter the test period, the test can be carried out by the company pe

IOS development-virtual effects of iOS 8, ios development-ios In iOS 7, a major change is ubiquitous virtualization, which is particularly eye-catching in the notification center and c

framework, but it would be more difficult if the complexity of the package is interdependent. If the company has a demanding performance, it may be hard to tolerate 500ms. But I think for most products, sacrificing this 500ms performance compared to the use of OC, I think it is more uncomfortable to use OC. RELATED links:WWDC 2016 session 406 optimizing APP Startup TimeWhat are frameworks?"Libraries" in IOS