IOS

iOS upload voice to server, here is an introduction to use AFN to upload voice files to the service side. Voice Turn NSData If it is not nsdata, we should find a way to convert the voice file into NSData before uploading the server. First we get

We said that the first way to upload pictures is to transfer the pictures to the image stream to upload; Today we are going to introduce another approach. is to use the method of afnetworking in the use of URLs to upload the way. Concrete backstage

Asynchronous event, which means that this code or code block does not block the execution of the program, the program immediately executes the next statement, and the statement executes its own callback function after the corresponding method call

Preface: When doing iOS development, often use the plist file, then, what is plist file? Here, I do a simple introduction and use, it is the full name is: Property list, the attribute listing file, which is used to store the serialized object of the

Uipickerview is a selector control that generates a Single-column selector or a multiple-column selector, and the developer can fully customize the appearance of the selected item, so it's very flexible to use. Uipickerview directly inherits UIView

As a result of the project needs, the design can be graded, to be able to display the grading data of the star rating bar. But there seems to be no such control on iOS, so it's up to you to figure it out. For this functional requirement, I have a

iOS screen switching animation effects of the API mainly by calling the system has defined animation effects, these effects have basically included the requirements of development, if the need for more complex results, you can consider catransition

1, in the iphone, we open the "personal"-"Member center" effect as shown below 2, then we enter into the "Member center"-"become a member" effect as shown below 3, select the type of membership you need, click to Buy, as shown below

IOS development-OC language (5) dictionary, ios-oc Dictionary Key knowledge points: 1. NSDictionary class 2. NSMutableDictionary class 3. Understand the inheritance relationship between NSMutableDictionary and NSDictionary 4. Supplement: Hashed

UI-corner cutting, transparency, highlighted Button clicking, button text underlined, ui-circle cutting1. Switch a corner of UIView to a rounded corner. If you want to set all the four corners of the UIView to rounded corners, the procedure is quite

Access the SQLite database by using the Qt5 iOS app, qt5sqlite Development Environment:MacOS 10.12.1Xcode 8.1Qt 5.8 iPhone 6 S + iOS 10.1.1 Source code:I specified the database name in the Qt program to create a database. It runs normally in Win10,

Const, static, extern introduction, constexternConst, static, extern Introduction 1. Difference Between const and macro: Const Introduction: the commonly used string constants are generally extracted into macros, but apple does not recommend that

IOS reader practice series (1) coretext plain text typographical basics, ioscoretext I have previously made an App for the company's reading class. Recently I have time to write the implementation process of the reading part for logic sorting, we

IOS uses ARC to manage memory (content is programmed based on iOS) and iosarc Stack 　　When a program executes a method (or function ),StackThe Region allocates a piece of memory space, which is calledFrame. Frame is the value of the variable

Swift keyword summary and swift keyword Summary There are four common keywords: Declaration-related keywords: class, deinit, enum, extension, func, import, init, let, protocol, static, struct, subscript, typealias, and var. Statement-related

IOS series basics 05 view originator, ios BasicsIOS series basics 05 view originator-UIView   Directory:   In the Cocoa and Cocoa Touch frameworks, the "root" class is the NSObject class. Similarly, in the UIKit framework, there is also a magic

Custom buttons for iOS keyboards and ios keyboardsUIKeyboardTypeNumberPad: Custom keyboard buttons Recently, a user search function is provided. UISearchBar is used here. Because the search method only involves mobile phone numbers, the keyboard

Tips for iOS development and tips for iOS developmentThe background color of the system navigationBar needs to be modified during code writing, at first, I used barTintColor to modify it, but I couldn't help it. When the system clicked the button,

GCD encapsulation of personal understanding and application, gcd encapsulation of understandingPersonal Understanding and applications encapsulated by GCD     Features > GCD encapsulation frees us from tedious Method Memory and enables direct

One-sentence OC Singleton mode and one-sentence OC Mode Create a new header file and define the following macro: 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686