IOS

The usage is as follows: Create/Add a zip packageZipArchive * zipFile = [[ZipArchive alloc] init];// For zipfilename, a complete path is required, for example, ***/Documents/demo.zip.[ZipFile CreateZipFile2: @ "zipfilename"];// There are two

Now I am engaged in iphone development. I have never been very familiar with the object-c memory management mechanism. I can see that apple's official documents are well written and I have not found any translation articles. So I translated it by

1. When using JSON to parse the service on the server side, a request URL must be provided. This URL sometimes needs to pass some parameters. If these parameters are English or numbers, the request will fail. [Plain]NSString * urlString = @ "http: /

Is the first article: 1. Difference between shallow copy and deep copy? What is the difference between shallow replication and deep replication? BytesAnswer: copy the pointer to the object instead of the referenced object. Deep copy: copy the

I. Software InstallationDownload and install the Xcode development tool from the appstore. The latest version is 4.5.1. 2. Use Xcode to compile a test scriptNote: If you are running a test case on the IOS simulator, you must have the source code of

1. I wrote a small Demo to implement up and down movement: the main code is as follows: [cpp]-(IBAction) upChange :( id) sender {if (typeView = down) {[self. downBtn setHidden: NO]; [self. upBtn setHidden: NO]; [UIView animateWithDuration: 0.5

There is no toolbar in IOS, which is different from android and does not adapt. Now we can implement the switch by ourselves. First, add two images to your resource to indicate the ON and OFF statuses. Name them switch_off.png,switch_on.png

This article will create a sample project, run it and probe the memory, and find that the UI control that is supposed to be reclaimed by garbage collection is not recycled. It is further found that the control cannot be recycled due to

Element control size (pts) Window (including Status Bar) 320x480 Status Bar Height 20 Navigation Bar Height 44 (horizontal screen) 32 (landscape screen) height of Navigation Bar containing Prompt 74 (horizontal and vertical screen) Navigation Bar

For user experience, most applications display a simple introduction page, that is, the user guide page, when the application is started for the first time. The following results are displayed: I tried it myself, scrollview is used to switch views.

First, use @ synchronized (self)   Static LocationController * sharedInstance; + (LocationController *) sharedInstance {@ Synchronized (self ){If (! SharedInstance)SharedInstance = [[LocationController alloc] init];}Return sharedInstance;} @

Many iPhone OS versions are available. Many users have not upgraded to the latest version for various reasons, which makes it difficult for our developers. As developers, we all hope that the more the audience of the software, the better. How can I

    AVSystemController * av = [AVSystemController sharedAVSystemController]; [Av setVolumeTo: 0.0 forCategory: @ "Ringtone"];   It's very easy. Just a few words, I tried it. Although setVolumeTo is 0, the sound is only a small one, but there is

Iphone QQ protocol and QQ iphone Protocol   The QQ Iphone login protocol only requires two packages. I felt mysterious before I understood it. After I understood it, I felt that QQ was so brave! The following is a section on the Internet. different

For iphone developers, memory management is an extremely important skill. Even if the program functions more powerful and the design is more beautiful, if the memory is not well controlled, it will not escape the inexplicable exit of the program,

1 PrefaceUse UITapGestureRecognizer to listen to events that capture users' clicks on the screen. 2. code exampleZYViewController. m   [Plain](Void) viewDidLoad{[Super viewDidLoad];// Do any additional setup after loading the view, typically from a

1 PrefaceToday, we will learn how to use the UIView animation method to move your view. 2. code exampleZYViewController. m:   [Plain]-(Void) viewDidLoad{[Super viewDidLoad];// Do any additional setup after loading the view, typically from a

In the latest IOS project, the selector is used in several places. For example, the commonly used regional selector (province, city, and district) has implemented a custom Dialog on the android platform. However, I am not very familiar with IOS. I

Alert views are pop-up views that appear over the current view on the iPhone. Creating and showing an alert (ARC compatible ): UIAlertView * alert = [[UIAlertView alloc] initWithTitle: @ "Really reset? "Message: @" Do you really want to reset this

1 PrefaceWe have already learned that we can construct a wide variety of application interfaces. Then, some applications cannot be fully implemented simply by using the built-in components of UIKit. Sometimes the application needs custom plotting.