Swift

1, Reflection (Reflection)For C # and Java developers, it is certainly quite familiar with the concept of reflection. The so-called reflection is the dynamic access to the type, member information, while at run time (but not compile time) can

This is a lovely login box page, animation effect imitation from foreign website Readme.io. Someone wrote a objective-c version on the GitHub, and I'm here to share it with the swift version. The effect chart is as follows: (1) When

I introduced the configuration and use of the Ijkplayer framework. The Ijkplayer default compilation configuration was used, that is, the streamlined configuration. This compiled package is relatively small and supports most video formats. Live

The Swift standard library can compile the Android armv7 kernel, which allows swift statement code to be executed on the Android mobile device. This article explains how to run a simple "Hello,world" program on your Android phone. Frequently

Any class this does not inherit from another class is known as a base class.Swift classes does not inherit from a universal base class. Classes you define without specifying a superclass automatically become base Classes for your to build upon.Swift

Reprint please indicate source: http://blog.csdn.net/cywosp/article/details/40781569Swift before version 2.1.0 if the configuration file for each service has the following configuration open and the system is not configured correctly there will be

A function is a self-contained block of code that performs a specific task. Given a function name identifier, this identity can be used for "invoke" when performing its task.Swift's unified functional syntax is flexible enough to express anything,

1, in the OBJCIn OBJC, you can use @selector to obtain the SEL type of a method or function, which is the method passed in the method as a parameter.In OBJC, in addition to @selector, nsselectorfromstring can obtain the SEL type, and the

Shortly after Apple Swift was introduced, it was an accidental opportunity to come into contact with the language, and to look at its syntax casually:Instantly was moved, switch in incredibly boldly eliminated the break, is completely anti-human

/**1. The old for statement can no longer be used. For example: for (int i=0; i2. New way: For i in 0..3. The new way of reverse for I in (0..*/Class Viewcontroller:uiviewcontroller{Override Func Viewdidload (){Super.viewdidload ()Additional setup

Notificationis a common information transmission mechanism in the development of smartphone application, it can save resources very well without consuming more resources to check the information status constantly.There are two types of notifications

One: Swift basic data type Data types in Swift also include: integer/Float/object type/struct type, etc. Understanding integer and floating-point types first Integral type have symbols Int8: Signed 8-bit

Object-oriented targets constructor function Basic concepts of constructors Execution order of constructors KVCThe use and principle of the structure function Convenient constructor function Destructors

Workaround:When writing OC, you often use a variety of macro definitions, but there seems to be no such definition of macros in Swift, much more by global constants or global functions to achieve this effect. We just need to create a file (assumed

16 Automatic Reference countingARCSwift uses automatic reference counting (ARC) to manage the memory usage of the application. This means that memory management is already part of Swift, and in most cases you do not need to consider memory

Assertion (assertions)Optionals allows us to detect whether a value exists. In some cases, if a value does not exist or does not provide a specific satisfying condition, the code should not continue to execute down.In these cases, you can use the

Constants and variables* Let constant: the value of a constant cannot be changed once set* Var variable: the value of the variable can be changed arbitrarily* Constants & Variables Use Principle:* To ensure the security of the data as far as

1, If I am a newly-started iOS developer, choose Swift study, or choose Objective-c study, or two all learn?This can be decided according to two conditions: 1, I want to enter the company as an iOS development position 2, I just want to be an

The compatibility between SWIFT and objective-C allows you to use both languages in the same project. You can use this "mix and match" feature to develop hybrid language-based applications. Using swfit's latest feature "mix and match", you can

Class inheritance and construction process All stored attributes in the class, including all attributes inherited from the parent class, must be set to the initial value during the construction process.   Swift provides two types of class