IOS

Reactivecocoa is a very complex framework, and before we begin to introduce its core components, let's look at its class diagram to get a macro view of its hierarchy: From the above class diagram, we can see that Reactivecocoa is mainly composed

Then on an article, automatically generate the framework, this article I put the Shell Automation Packaging IPA organized a bit, I hope you like it, hehe. We suggest that you take a look at the previous article first.

introduction of Wkwebview UIWebView since IOS2, Wkwebview from IOS8 only, no doubt Wkwebview will gradually replace the heavy uiwebview. Simple tests show that UIWebView consumes too much memory and that peak memory is exaggerated. Wkwebview Web

As shown in the figure above: Custom label, self-arranged, can control margin, line spacing, enumerate, achieve neat free arrangement, say not much, see code . m Main Page #import "ViewController.h" #import "TagsFrame.h" @interface Viewcontroller ()

The project has a download file function, download needs to be able to view, can not be for each type of file to write a view function bar. The good news is that iOS has a uidocumentinteractioncontroller that can help you tune up the installed apps

1. Mac system and Xcode some shortcut keys 1. Mac Command + W Close window Command +q Shutdown Program Command +c Assignment Command +v Paste Command +a Select All Command +shift+4 Screen Capture Command +tab Toggle Window Command+shift+h Simulator

Android has previously written a demo, is the wave effect, should be modeled on Baidu's external sales of the Avatar effect. Suddenly want to take Xamarin to try, use my brain hole finally to get out, do not know the method is not reasonable. Just

Cold start Cold start is the process of starting from scratch after the app is killed. Hot Start When the user presses the home button, the iOS app will not be killed immediately and will continue to survive for some time. Ideally, when the user

Uiimagepickercontroller *picker = [[Uiimagepickercontroller alloc] init]; [Self Presentviewcontroller:picker animated:yes completion:nil]; Into Uiimagepickercontroller *picker = [[Uiimagepickercontroller alloc] init]; Appdelegate *delegate =

Recently engaged in the analysis of iOS crash log, summed up: The iphone development is going to be a non-stop version, followed by various versions of the crash log. If not properly managed, developers will soon be lost in the crash log and

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I. Prepare materials 1. Create a push certificate in the app Certificate (Download and install... remember to keep p12 (Cer. p12 and key. p12) + CER + mobileprovision for future update packages. Do not reconfigure the new p12 on the server after

  1. Call built-in mail [[Uiapplication sharedapplication] Openurl: [nsurl urlwithstring: @ "mailto: // admin@hzlzh.com"]; 2. Call phone [[Uiapplication sharedapplication] Openurl: [nsurl urlwithstring: @ "Tel: // 8008808888"]; 3. Call

Bundle is a directory that contains the resources used by the program. these resources contain images, sounds, compiled code, and nib files (bundle is also called plug-in ). corresponding bundle. Cocoa provides the nsbundle class. Our program is a

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2 sets of images should be prepared One is for standard, format: . One is for HD: @2x. Where is optional, which can be "~ IPad "or "~ IPhone" When you use the following code: [button setImage:[UIImage imageNamed:@"play.png"]

Recently, we need to collect some data logs in the simulator environment. The data recording and appending functions are also taken into account. The simple code is as follows: + (Void) appstring :( nsstring *) s {bool isexit = [nlcommonutil

1. In addition to the lock, the system also provides conditions to ensure the proper sequence of execution of tasks in your application. A piece serves as a gatekeeper, blocking a given thread until it represents a true condition. In this case, the

Today, IOS encountered a bug. The contentoffset of uitableview will be reset when the content is less than one page. It is normal in other cases, and this bug only appears in the tabbar. After debugging, it is found that it is caused by

1. Use bitmap as much as possible. If it is a solid block, you can use a vector.2. It is best to load resources and materials externally, especially the skin, so as to dynamically update the skin.3. The mask is not efficient. If you need to use it,