IOS

Phonegap provides basic feature interfaces for iOS devices to call HTML pages. However, these basic interfaces cannot meet some of our special requirements, so sometimes we need to develop plug-ins to expand their functions. IOS plug-in development

At least the simulator directory has changed. The path under iOS8 is changed: /Users/username/Library/Developer/CoreSimulator/Devices/data/Containers/Data/Application/7D5B082E-53D5-4C60-86A0-1F6A0A1B98E3/Library/Caches /... The path is deep

When performing a single sign-on for a mobile APP, you need to click the link in the browser to start the APP and upload the parameters to the corresponding interface in the APP for processing, now we will sort out the implementation process of

Whether using the mvc or mvvm architecture, we need to ensure that model changes can be synchronized to relevant components in a timely manner. Similar to the monthly Observer Model, kvo can be used in ios to accomplish such a thing, but every time

Use of UILabel label classes Knowledge outline 1. What is a label? 2. Basic use of tags 3. common attributes of tags   Knowledge points 1. What is a label? As shown in the following figure, we often need to display text data on the interface. iOS

1. Create a project and run the code cyclically through the main function until the application is closed. 2. Click the project, create a storyboard file, and specify the first storyboard file in the info directory. VcD4KPHA + pgltzybzcm9

Performance is one of the benefits Apple claims that the new programming language Swift will bring to OS X and iOS developers. However, the first experiments and benchmark tests executed by independent developers show that Swift has poor performance

Today I will share with you the usage of closures in swift. I personally think closures are short for functions. If you are not familiar with functions, please refer to the Quick Start article-Functions   1: Function Type Var variable of function

A string is an ordered set of characters, such as "hellow, world" or "cisteon ". The strings in Swift are composedStringType, correspondingCharacterA set of Type values. In SwiftStringType provides a high speed and compatibility for your

The input date string is in the format of @ "13:08:08" -(NSDate *) dateFromString :( NSString *) dateString { NSDateFormatter * dateFormatter = [[NSDateFormatter alloc] init]; [DateFormatter setDateFormat: @ "yyyy-MM-dd HH: mm: ss"];   NSDate *

I have been using swift for several days. It is found that in addition to several basic types of conversions, some special numeric types need to be converted from "bridging" to "Objective-C ~ The Code is also very simple ~ Var numString = "1.0" var

Install the SDK by running the ruby gem command on Mac. To view the ruby version, open the terminal and enter ruby-v. First download CocoaPods from GitHub Terminal input command: sudo gem install cocoapods Enter the computer password as prompted

The historical CoreData data persistence framework of the CoreData database framework is part of the Cocoa API. It first appeared in the iOS3.0 system and allows data to be organized according to the entity-Attribute-value model, and persistent data

  Boolean Value   Swift has a basic Boolean Type called boolean (Bool), Boolean value, also known as logical value (Logical), Because it can only be true (True) Or false (False). Swift provides two Boolean constants:True,False: 1 let

IOS system architecture is divided into four layers: Core OS layer, Core Services layer, Media layer, and Cocoa Touch layer ). Core OS:The underlying layer of the iOS system architecture is the core operating system layer, which includes memory

I. Draw text code: Copy code 1 // 2 // YYtextview. m 3 // 04-write text 4 // 5 // Created by Kong Zhiji on 14-6-10. 6 // Copyright (c) 2014 itcast. all rights reserved. 7 // 8 9 # import "YYtextview. h "10 11 @ implementation YYtextview12 13

When developing iOS applications, we usually create a large number of custom components to make the interface look beautiful. At present, the graphic Interface development tool Interface Builder in Xcode5 cannot display the Display Effect of custom

1. Method 1:The hidden command is recursiveDescription. You can simply use it to check the view and call recursiveDescription in the view to print its inheritance relationship. Because it is a private method, no prompt is displayed when you type it.

There are five data storage methods in ios program: XML property list (plist) Archiving Preference) NSKeyedArchiver archive (NSCoding) SQLite3 Core Data Each iOS app has its own application sandbox (the application sandbox is the file system

1. YES and NO Object-c provides the BOOL type, but this BOOL type is not the same as that in C ++: In C ++, all non-0 values are true, the value 0 is false. However, in Object-c, 1 is true and the macro is defined as YES = 1, 0 is false, and the