how to program ios apps

consider the cancellation of the task. You can use a simple Boolean or reshape variable to cancel a block that has been scheduled to execute.static int requestnumber = 0;-(void) Cancel {requestnumber++;}-(void) Schedulesomecode {int currentrequestnumber = RequestNumber;[[Nsoperationqueue Mainqueue] addoperationwithblock:^{if (RequestNumber = = Currentrequestnumber) {Part of heavy stuff that would not be executed if you have called Cancel}}];}All right, here we are, finally. We mentioned a lot a

Understanding and analyzing crash reports of ios apps and crash reports of ios apps Source URL: Http://developer.apple.com/library/ios/#technotes/tn2151/_index.html When an application crashes, creating a "crash report" is useful for understanding how a crash occurs. This do

Display your own apps in ios settings, and set apps in ios 1. Create a setting bundle file. Note that the default name is recommended. Changing the file name may not be displayed. 2. A file appears. Open the Root. plist file and set the value in the plist file. 3. There are 6 more styles in the settings. Title start

IOS: How to make apps safer and iOS apps safer1. Security Solution for network requests 1.1 https requests, preferably a secure interaction platform. 1.2 encrypt important parameter requests (AES and ERSA encryption are recommended ). 1.3 when the server returns data, it encrypts important data. 1.4 do not write th

Key Points Analysis of iOS hybrid apps and key points of ios hybrid apps Key Point Analysis of iOS hybrid apps-Implementation points of the local object method that can be injected with WebView on the Android platform Beautiful Li

IOS reverse engineering: Shelling apps, ios reverse engineering apps This blog is an example. In iOS reverse engineering, "shell smashing" is a common task, because directly downloading and installing apps from the AppStore is she

IOS apps from Xcode support both landscape and landscape, and iOS apps It depends on whether an application supports both horizontal and vertical screens. It depends on the settings of the info. plist file in Xcode. Each new project contains three support methods, that is, in Supported interface orientations Portra

Jump between iOS apps and iOS apps 1. Let's take a look at the effect. Here we have made three functions. 2. Pay attention to the following two aspects to achieve jump between apps 3. First, set the url and whitelist. Set YourApp url Set the White List of MyApp Set t

In IOS development, how does one implement automatic detection and update of apps? In ios development, how does one implement apps? Implementation logic of automatic detection and update: First github address: https://github.com/wolfhous/HSUpdateApp 1. Obtain the APP version number of the current project. 2. Get the Ap

Jump between ios apps, pass values, and jump between ios appsThe jump between two apps is achieved through [[UIApplication sharedApplication] openURL: url. 1. First set the url of the first APP 2. Set the url of the second APP. 3. Jump NSString *urlString = [NSString stringWithFormat:@"AppJumpSecond://%@",textField.

According to the report, the overall risk level of iOS apps is higher than that of Android apps. Market research company Appthority's latest report shows that the overall risk level of iOS applications is higher than that of Android applications. Among the top 100 apps on t

Market research company Appthority's latest report shows that the overall risk level of iOS applications is higher than that of Android applications. Among the top 100 apps on the iOS platform, more than 91% of apps have security vulnerabilities, or may cause user data to be leaked; of the top 100

In iOS, you need to tune up an app to use the schema protocol, which is native to iOS, and because the iOS system can't use its own browser kernel, so all browsers support it, unlike Android, Android can do its own kernel, But iOS doesn't.There are two ways to open apps in y

0. Preface: Project Address :https://github.com/vczero/React-Native-App 　　Welcome to issues to discuss any issues, including "fitting room" ....I. Introduction of the ProjectThe main features of the React-native Node Address Book app (1) are: File system-based node. JS service side; Address Book features (category page + List page + Dial-up mailbox mail) Announcement features (List page + Detail page) Contacts and Content management features WebView the inline instance

In app development, there are often features that invite users to rate apps. In iOS, the official app is downloaded through AppStore, so the app can be scored only in AppStore. Therefore, you need to jump from the app to AppStore. The method is to open the URL of the response. The code is as follows:NSString *appid = @ "1234567"; NSString *str = [NSString stringwithformat:@ "itms-

1. Open Other applicationsAppurlstr = "cwork://app_id?title=xxxcontent=xxx"[[uiapplication sharedapplication] openURL: [nsurl urlwithstring: APPURLSTR]]; Requires the other app to be configured in Info.pist: This allows the other application to be tuned.2. Opened by other applications(1) as shown, need to configure themselves in the Info.plist, others fall themselves, where identifer no use, mainly the URL schemes, it will be used to splice the URL of the transfer: such as

Cannot install appApp developer, do the program test, retry not yet, repack,Personal, change the DNS of WiFiIn the "Settings" –> "WiFi" –> enter the current WiFi access after clicking next to the exclamation mark, and then click on DNS to delete the original settings 88.8.8 can do it.1) The simplest way is to try to restore the network.Click "Settings" on the Apple phone desktop to find "General" and then click "Restore" –> "restore network Settings"

Using UICollectionView in iOS development to classify Meituan apps [A small bug of public comment apps ], Master haomeng is devoted to his contribution and respects the author's Labor achievements. Do not repost them. If the article is helpful to you, you are welcome to donate to the author, support haomeng master, the amount of donation is free, focusing on you

calls the following proxy method/** Open File Call Agent @param application own app @param URL The sandbox address of the file when the third-party app is called @param sourceapplication the third-party app that calls our app who @param an Notation @return The return value is Yes*/-(BOOL) Application: (UIApplication *) application OpenURL: (nsurl *) URL sourceapplication: (Nullable NSString *) sourceapplication Annotation: (ID) annotation{if(Self.window) {if(URL) {nsstring*filenamestr =[url las

entered the foreground and is active"); } //applications are going to exit, usually used to save the bookshelf to drink some pre-launch cleanup work,- (void) Applicationwillterminate: (UIApplication *) Application {NSLog (@"applications are going to exit, usually used to save the bookshelf to drink some pre-launch cleanup work"); } //when the device allocates too much memory to the application, the operating system terminates the application and executes the method before terminating .//m