[IOS learning basics] OC, ios basic oc

[IOS learning basics] OC, ios basic oc A few days ago, it suddenly occurred to someone else's class. the m file contains the following code: @ synthesize xxxx = _ xxxx. At that time, the role did not understand what it meant. After that, it slowed

Error = 3840 when parsing data in iOS and error3840 when parsing data in ios

Error = 3840 when parsing data in iOS and error3840 when parsing data in ios 1. An error occurred while parsing the JSon data format. Unescaped control character around character XXXX And The data couldn 'tbe read because it isn' t in the correct

An Implementation Method for browsing a large image.

An Implementation Method for browsing a large image. The transfer animation is used (not to mention the transfer animation here). It mainly refers to the conversion of several coordinates: The imageView snapshot on the cell is generated to generate

IOS certificate Bug and ios certificate bug

IOS certificate Bug and ios certificate bug Symptom: The identity used to sign the executable is no longer valid Please verify that your device's clock is properly set, and that your signing certificate is not expired. Your signing certificate

Small notes, tomb theft note novels

Small notes, tomb theft note novels The system automatically releases an object when the object is created quickly. For example: NSDictionary * dic = [NSDictionary dictionary]; // The System Automatically releases the memory once, and the object

Custom input box for iOS development (using UITextField and UITextView) to customize uitextfield

Custom input box for iOS development (using UITextField and UITextView) to customize uitextfield Recently, some input boxes are often customized during project creation. We will share them here today. My idea is to inherit from the control of the

NSDate operations (comparison, creation, addition or subtraction of a certain period of time on the existing date), nsdatedate

NSDate operations (comparison, creation, addition or subtraction of a certain period of time on the existing date), nsdatedate Current Creation Time   [Cpp]View plaincopyprint? NSDate * date = [NSDate date];     24 hours from now

Custom slideshow widget in Objective-c ui, objective-cui

Custom slideshow widget in Objective-c ui, objective-cui The following is a custom carousel image class ImageLoop inherited from UIView. The class ImageLoop contains a UIScrollView and UIPageControl, which defines three attributes: PageControll,

Block applications in ios and iosblock applications

Block applications in ios and iosblock applications In this winter, I have quietly typed on the keyboard. today, when I learned about swift, I learned the closure and found that there are many similarities between the closure and the oc block. I

1.2 create and load controller view, 1.2 view

1.2 create and load controller view, 1.2 view Loading priority: 1. Use the system loadView method to create a controller View 2. If you specify to load a storyboard file as the controller view, the description in the

IOS implements image color inversion, nostalgia, color histogram effect, and ios Histogram

IOS implements image color inversion, nostalgia, color histogram effect, and ios Histogram The reversed color is the color that can be converted to white when superimposed with the primary color, that is, the color of the primary color is subtracted

IOS implements image sketch and ios image sketch.

IOS implements image sketch and ios image sketch. Use the GPUImageSketchFilter object to achieve image sketch Effect NSString *const kGPUImageSketchFragmentShaderString = SHADER_STRING( precision mediump float; varying vec2 textureCoordinate;

Swift uses a proxy and a closure (closure) to reversely transmit values, and swiftclosure

Swift uses a proxy and a closure (closure) to reversely transmit values, and swiftclosureCode of FirstViewController Import UIKitclass FirstViewController: UIViewController, SecondViewControllerDelegate {@ IBOutlet weak var showTextLabel: UILabel! @

[Recommended] third-party library for converting iOS Chinese characters to pinyin, and third-party library for ios Chinese characters to PinYin

[Recommended] third-party library for converting iOS Chinese characters to pinyin, and third-party library for ios Chinese characters to PinYin PinYin4Objc is an open-source git Chinese character-to-pinyin library that supports simplified and

[Code notes] highlights of movies, automatic scrolling, and code notes Rolling

[Code notes] highlights of movies, automatic scrolling, and code notes Rolling I ,. 2. Engineering Drawing. 3. Code. RootViewController. h #import @interface RootViewController : UIViewController{ UIScrollView

Implementation of menu scroll view for iOS and ios scroll View

Implementation of menu scroll view for iOS and ios scroll View Menu scroll view is also a common feature in the project development process.   The implementation result is as follows: When the total length of the number of menus

Use of the agent in OC, use of the OC agent

Use of the agent in OC, use of the OC agent Generally, the following steps are required for proxy: 1. Develop an agreement. The protocol can be declared in. h of the delegate object, or in a separate. h. After the protocol is developed, the method

IOS development practices-cell download image (NSOperation)

IOS development practices-cell download image (NSOperation) The cell image in the scrolling list is downloaded and displayed from the server. The multi-thread and cache technologies are used to efficiently download and display images. Cell Image

IOS development (I) carousel and ios

IOS development (I) carousel and iosPreface The vast majority of apps on the market are highlighted by a magnificent carousel. Therefore, being able to make a suitable and efficient carousel becomes a necessary skill for programmers. So today's blog

IOS application distribution and internal testing (1)

IOS application distribution and internal testing (1) Today, I will use a few blogs to explain how to implement the distribution and internal testing of iOS apps. This will be detailed, not just by clicking a few mouse to complete the task, some of

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