IOS

IOS implements a simple mobile UIView code instanceCreate a UIView in iewDidLoadzh[Cpp]UIView * tmpView = [[UIView alloc] initWithFrame: CGRectMake (30.0, 30.0, 45.0, 45.0)];TmpView. backgroundColor = [UIColor brownColor];TmpView. tag= 100;[Self.

We mentioned the Application Testing and Logic Testing concepts when we added OCUnit to the project. They are not OCUnit concepts, it is a concept in unit testing. Application testing is a test of the entire application. When designing test cases,

(1) Thread 1: Program formatted ed signal: "SIGABRT" an error that is frequently encountered by beginners in application development: the cause of this error is that the view is not initialized. After careful reading, we found that the view

In Cocoa, archive data to a file and use the archiveRootObject: toFile: Method of NSKeyedArchiver. This step is very simple for general data types (such as strings. In Apple official documents, these data types include NSData NSString NSNumber

1. using ArcGIS Runtime for WindowsPhone SDK to develop a mobile map application, you can locate the location and export multiple location information as a GPX file for other software, such as ArcMap and Google Earth. This article describes how to

UITableView is more powerful than custom UITableViewCell cells. Generally, cells in UITableView are dynamic. during use, a Cell pool is created based on the height of each Cell (tableView: heightForRowAtIndexPath: return value ), and several cells

I am recently working on an iPhone text message upload and download project. After the text message is downloaded, I need to restart the SMS app to view the downloaded text message. However, in reality, it is impossible for users to restart the sms

13 days more than 106 users to download iOS the individual app "GPSBOX" online. although only a few downloads, but for me personally is certainly. in particle, there is a lot of foreign download DS download. but "GPSBOX" be considered early in the

1. PrefacePreviously, I learned the basic syntax of Objective-C. From today on, I started to learn simple IOS view development. 2. UIAlertView2.1 normal bullet boxThe best way to use the prompt view is to use a specific initialization

1 PrefaceUITextView can display multiple lines of text in a sliding view. 2. code exampleZYViewController. h: [Plain] # import  @ Interface ZYViewController: UIViewController @ Property (nonatomic, strong) UITextView * myTextView; @ End # Import @

When developing an APP, we always involve the internationalization of the APP. In ios, the terminology is called localization, which is actually a meaning. In short, it is a different system language, display different application names, string

Initialize AVAudioRecorder and set the recording parameters and storage address: [Cpp]// Recording settingsNSMutableDictionary * recordSetting = [[NSMutableDictionary alloc] init] autorelease];// Set the recording format AVFormatIDKey =

In ios development, the ARC mode is enabled and the system automatically manages the memory. If block is used in the program, pay attention to the memory leakage caused by circular reference. I have encountered a problem over the past few days. When

When you build your app on the ipad, the following prompt appears:Objc [1334]: Class ASIAuthenticationDialog is implemented in both/var/mobile/Applications/DDD5C5F0-49E4-425F-AEAE-0AC27FA8A0AC/MyApp. app/MyApp

Two views targetSubview and sourceSubview are added to a view controller. TargetSubview is hidden by default, and sourceSubview is visible by default. Now, I have such a requirement. Slide your finger and drop the targetSubview from the top down to

1 Preface In object-oriented software, "something" (behavior) is added to the object without damaging its original style. Therefore, the enhanced object is an enhanced version of the same class. Any "enhancement" can be dynamically added or deleted.

1 Preface A common use of proxy is as a lightweight proxy object, which allows the client to first access some cheap information or functions. When a user is willing to pay for the real and high-price membership status, the proxy opens the door to

I have been developing IOS for more than a year. I found that the Xcode shortcut is not familiar with it. Otherwise, it really affects work efficiency!   1. File CMD + N: New FileCMD + SHIFT + N: new projectCMD + O: OpenCMD + S: SaveCMD + SHIFT +

Today, I encountered a situation where when I click UITableViewCell to highlight, the highlighted objects in its subviews are also highlighted. After a long time, I did not solve the problem. I did not find a way to study it with my colleagues,

Image ScalingI. The Pinch gesture scales the image. That is, drag the photo with two fingers in different directions, and the photo will be scaled down or enlarged.Principle I understand: proportional Scaling Let's take a look at the following key