Reveal UI analysis tools are simple to use and revealui analysis tools

Reveal UI analysis tools are simple to use and revealui analysis tools Official website (30 days free trial): http://revealapp.com/   Purpose: In iOS development, we sometimes hope to have a UI Debug tool similar to Web development (for example,

The realization of the animation effect while waiting, waiting for the realization of the animation effect

The realization of the animation effect while waiting, waiting for the realization of the animation effect When we load the page when requesting the network, there is an action, the effect is as follows: Source code can be found on the Internet

Example of iOS album access and photo album Storage

Example of iOS album access and photo album Storage Example of iOS album access and photo album Storage Effect:1. Click the "Access album" button to access the system album. After selecting it, it will be displayed in imageView.2. Click to take a

IOS-3-Objective-C language: Singleton Design Model

IOS-3-Objective-C language: Singleton Design Model Abstract: The method of the parent class needs to be rewritten in the singleton design mode. Because Global instances cannot be released, the retain, release, and autorelease methods related to

Ios reads large files

Ios reads large files // Read File Content operation-(void) loadFileContentsIntoTextView {// open a file through the stream NSInputStream * inputStream = [[NSInputStream alloc] initWithFileAtPath: filePath]; [inputStream open]; NSInteger maxLength =

IOS 9 app development tutorial-custom app icons and real-machine testing

IOS 9 app development tutorial-custom app icons and real-machine testingIOS 9 app development tutorial-custom app icons and real-machine test custom iOS 9 app icons In Figure 1.12, you can see that the application icon is a mesh white image, which

Select the implementation principle of the effect from the drop-down list.

Select the implementation principle of the effect from the drop-down list. Effect of navigation bar and drop-down box The result is the effect selected in the drop-down box in the middle of the navigation bar. When you select one, the above words

Several methods for obtaining file paths in iOS and ios

Several methods for obtaining file paths in iOS and ios The iphone Sandbox Model has four folders: What are they, where permanent data storage is generally stored, and how to get the simulator path. Documents, tmp, app, Library. (NSHomeDirectory ()),

IOS NSFileHandle, iosnsfilehandle

IOS NSFileHandle, iosnsfilehandle NSFileHandle is mainly used to read and write the file content. NSFileMange is mainly used to perform operations on files and obtain file information. Common Handling Methods + (Id) fileHandleForReadingAtPath :(

IOS-Precautions for local file and data security, and ios-Data Security

IOS-Precautions for local file and data security, and ios-Data Security 1. program file security. By obfuscation and encryption of the JavaScript source code, hackers can easily read and tamper with related logic, and prevent leakage of

Ios ui basics 08 and iosui08

Ios ui basics 08 and iosui08 Custom height cell // Create a custom cell and add a child Control Using initWithStyle (note: The child control must be added to contentView)-(instancetype) initWithStyle :( UITableViewCellStyle) style reuseIdentifier

IOS-considerations for verifying in-app payment creden, ios-creden

IOS-considerations for verifying in-app payment creden, ios-creden 1. In short, because the cell phone after jailbreak does not have a sandbox for protection, hackers can make any modifications to the system. Therefore, during the payment process,

IOS delays program execution and iOS Program Execution

IOS delays program execution and iOS Program Execution // Gets stuck in the main thread [NSThread sleepForTimeInterval: Time (seconds)]; // After a delayed task is customized, it will not be stuck in the main thread and will be executed in the

Add watermarks to images in ios and ios

Add watermarks to images in ios and ios UIGraphicsBeginImageContext (image1.size ); [Image1 drawInRect: CGRectMake (0, 0, image1.size. width, image1.size. height)]; [Image2 drawInRect: CGRectMake (image1.size. width-(image2.size. width * 0.5

FatSecret Platform API, fatsecretplatform

FatSecret Platform API, fatsecretplatform At this stage, the catering APP is developing very fast, especially on campus. Students only need a cell phone to buy the food they want. However, if we want to complete an app independently, we need to have

Swift-control statement and swift-Statement

Swift-control statement and swift-Statement Today, I wrote some basic knowledge about the swift language I learned a few days ago. I want to write it a few days ago, but the tool for inserting Code does not have Swift, put it down (the "huge" blog

For IOS basic, set the APP name, setting icons, and adding images waiting for loading,

For IOS basic, set the APP name, setting icons, and adding images waiting for loading, 1. The default name of our app is our project name, so we usually change a more friendly name. The change method is as follows: Find the InfoPlist. strings

IOSQuartz2D-04-manually crop images and save them to albums

IOSQuartz2D-04-manually crop images and save them to albumsEffect Procedure Draw a rectangle, and an alertView is displayed, prompting whether to save the image and clicking "yes". Save the image to the album and view the saved image in the

The event transfer and response chains in iOS and ios

The event transfer and response chains in iOS and ios First, let's take a look at the process of event generation and delivery in iOS: 1. After a touch event occurs, the system adds the event to a queue event managed by UIApplication. 2.

IOS UI05 _ gesture Reader

IOS UI05 _ gesture Reader Gesture: Click, hold, rotate, pinch, drag, clean, clean //// MainViewController. m // UI05 _ gesture reader /// Created by dllo on 15/8/4. // Copyright (c) 2015 zhozhicheng. all rights reserved. // # import

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