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iOS Development Note Series-Basic 5 (Classification and Protocol)

ClassificationIn Objective-c, in addition to adding new methods to classes by creating new subclasses, you can also categorize them. Classification provides a simple way to modularize the definition of a class into a group or class of related methods, and it provides an easy way to extend the definition of an existing class without having to access the source code of the class or create subclasses.Like what:// Someclass+mathops.h #import " SomeClass.h

iOS Development--Grammar Chapter &swift Classic Grammar Summary

13.1 You can use a is B to determine if object A is a B type, and the return value is a Boolean value 13.2 As can convert ordinary types, such as double,int,cgfloat, to convert 13.3 can use as? Convert the same to a parent class, the result can be nil or transformation success, so the result is an optional type, the conversion after successful use?. To access a method or property, or to make an optional binding. 13.4 If an object can be converted successfully, it can be con

iOS Development--swift & Classic Grammar (four) features

:, IBAction , IBDesignable IBInspectable as well IBOutlet . These properties are conceptually the same as those in objective-c.IBOutletand IBInspectable a property declaration used to decorate a class; an IBAction attribute is used to decorate a method declaration of a class; a IBDesignable declaration that modifies a class.Type characteristicsType attributes can only be used for cosmetic types. However, you can also use noreturn attributes to modify a function or method declaration.auto_closure

Directory structure for iOS development

push notification, can write a Hbapns class, and so on.Development processAfter getting the design diagram, you can draw out the reusable classes/views/helpers for the design diagram, consider the specific implementation of an effect, use the appropriate design pattern to avoid a large number of if/else nesting, and so on. Do not drill into the sections in a flash to achieve the page effect and function, it may seem faster at first, but as long as th

"iOS Development Daily Small notes (10)" self-made with round frame avatar take advantage of the Calayer setting "Homestay Map"

This article is a piece of my "iOS development Daily Small Notes" series, which is recorded in the development work today, can be explained with a short article or a small demo demo small tips. They may give the user experience, the code efficiency to get some improvement, or have not been in touch with the technology, very happy to learn, put here to be a little

iOS Development gesture-uigesturerecognizer Coexistence

iOS Development gestures--uigesturerecognizer co-exist in the development of the IPhone or IPad, in addition to using the Touchesbegan/touchesmoved/touchesended method to control the user's finger touch, can also be used Uigesturerecognizer of the derivative classes to be judged. The advantage of using Uigesturerecogni

iOS Development--Xib (Uinavigationcontroller and Uitabbarcontroller), OC & Environment Building

iOS Development--Xib (Uinavigationcontroller and Uitabbarcontroller), OC Environment BuildingBefore we introduced the new technology of storyboard, and the code creation interface of pure technology programming, this article will introduce an old technology, but in a lot of companies or libraries still use this technology, so it certainly has his benefits, as for the benefits here I will not introduce.Befo

IOS app development experience using MonoTouch in

Visual StudioUsing MonoTouch for developmentIOSApplication Development Experience is the content to be introduced in this article. For programmers familiar with. NET, writeIOSThe best choice for applications is MonoTouch. In the previous article, we used MonoTouch to develop iOS application configuration environment in VS). We have installed the MonoTouch Development

Directory structure during iOS project development (RPM)

#import "HeadFile.h" in the. pch file5.Model: The Applied data model6.Resource: The main storage of application needs pictures7. Practical gadgets, such as converting hexadecimal color values to uicolor directly used classes, sometimes the UI gives us a #f0f0f0 color instead of (240,240,240) such a color value, we can directly convert the #f0f0f0 to color8. Required third-party libraries: such as ASIHTTPRequest,after getting the project requirements,

iOS Development coreanimation

The Core animation is directly acting on the Calayer (not UIView) very powerful animations across Mac OS X and iOS platforms Api,core Animation animation execution is done in the background and does not block the main thread. Core animation inheritance structureCore animation inheritance Structure Note: Virtual classes in core animations cannot be used, but should use real

iOS Development Series--swift 3.0

the IEEE-754 standard.let a = 2 * Float.pi // old: let a = 2 * M_PIlet b = 2.0 * .pi // 注意前面是浮点型,后面可以省略Float Of course there are some other infrequently used changes in Swift3.0, and if interested can access swift proposals Migrating from Swift2.2 to Swift3.0It can be seen that if you want to update to Swift3.0 existing projects need to make a lot of changes, after using the open source project Tageditor to test, a mere 10 classes of fi

iOS rapid Development Framework Bee-framework application and Parsing (iii)---Message, Model, Signal

by itself and decide the forwarding path of the uisignal, for example, UIView's forwarding path is the corresponding [view Viewcontroller]; beeuisignal through Beeuisignalbus forwarding, specific forwarding order is more complex, interested classmates can debug code comb clear. However, there are only four options for sending the event: try to give the target class, try to give observer classes, try to give UIView Superview, try to give a class

[IOS development-57] case improvement: block animation, removeFromSuperview of controls, use layer to set rounded rectangle and apply proxy mode,

[IOS development-57] case improvement: block animation, removeFromSuperview of controls, use layer to set rounded rectangle and apply proxy mode, Based on the above case, the case is improved: [iOS development-50] uses the creation of new classes to implement code encapsulat

iOS development-use nsmutableattributedstring for rich text

ColorNsstrokewidthattributename Strikethrough widthNsshadowattributename ShadowMore methods and properties are described in the official Apple documentation:https://developer.apple.com/library/ios/documentation/Cocoa/Reference/Foundation/Classes/ nsmutableattributedstring_class/reference/reference.html#//apple_ref/doc/uid/tp40003689 Working with instances UILabel *testlabel = [[UILabel alloc]

iOS development-Adapter and appearance modes

good to restrict the use of subsystem classes by customers, and if too many restrictions on the client Access subsystem classes are made, the variability and flexibility are reduced. ② without introducing abstract appearance classes, adding new subsystems may require modifying the source code of the skin class or client, violating the "open and closed principle"

IOS development diary 56-Analysis of NSobject API,

IOS development diary 56-Analysis of NSobject API, Today, the blogger has a requirement to analyze NSobject API and has encountered some difficulties. I would like to share with you the hope to make common progress. We all know that NSObject follows the NSObject protocol.Protocol -(BOOL) isEqual :( id) object Check whether the object is the same, the address is the same, and the hash value must be t

The difference between----#import, #include和 @class of iOS development

the header file of the referenced class, that is, the variables and methods in the. h file are included once, and only once, and @class is not used, so the latter is more efficient in compiling.3. In terms of compilation efficiency, if you have 100 header files that #import the same head file, or if the files are referenced in turn, such as A–>b, B–>c, C–>d, and so on. When the first header file changes, all the subsequent classes that reference it n

Several design patterns in IOS development

created typically have a common parent class. ”The world is made up of a factory class that dynamically decides which product class to create, based on the parameters passed in.Brief analysis of the structure diagram:ConcreteProduct1 and ConcreteProduct2 two products have a common parent class iproject, the Simple factory class is simplefactory, Responsible for determining the production ConcreteProduct1 or ConcreteProduct2 products according to the different parameters passed in.Advantages: Ea

IOS app design mode development of adapter mode using the actual combat walkthrough _ios

I believe that the students do app development, for some third-party statistical analysis, error collection, such as the SDK should be not unfamiliar. At present, there are many products of the same function in the market, dazzling, people can not choose which SDK is the most reliable. Then choose a trial first! So the question is: if the project is almost done and found that the SDK is really pit dad, not only poor scalability, but also often let ap

iOS Development Code Specification

commented before and after//Modification notes for modified person modification timedeleted code (comment out the code is not removed)//Modify End3. Modify the code to comment on how the old code added new code. VI. rules for the use of nested statementswhen using nested statements in your program, be sure to make the hierarchy of nested statements clear. Can'tlet the person look at the half-day still not clear your level, understand you want to express meaning. 1, If...else. Use of conditional

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