IOS

The idea is 1. ios downloads the zip Resource Package (images, sounds, and other zip-compressed resource packages) from the server to the local device. 2. decompress the zip file to the program directory. 3. Load resource files from the program

About DocumentInteraction  IOS supports previewing and displaying documents with other apps in your app. IOS also supports file association, allowing other apps to open files through your program. These technologies include the

The following figure shows the debugging results on the ipad.    The following is the code with comments in the Code: [Cpp]//// RootViewController. h// SoundDemo//// Created by on 13-6-21.// Copyright (c) 2013 DoubleMan. All rights reserved.// #

I. Media Player framework Video Playback is complicated because Apple encapsulates their processing in the Media Player framework perfectly. To use the Media Player framework, you must add the MediaPlayer. framework to the project and import in the

// Write a titleViewUIView * titleView = [[UIView alloc] initWithFrame: CGRectMake (0, 0,200, 20)]; // allocate titleViewtitleView. backgroundColor = [UIColor blackColor]; // Create UILableUILabel * titleText = [[UILabel alloc] initWithFrame:

1 Preface The observer mode is also called the publish-subscribe mode. As its alias implies, it looks like a magazine subscription. When subscribing to a magazine from a magazine publisher, the reader provides the name and mailing address to the

1 PrefaceIn object-oriented systems, the design pattern for the iterative behavior of abstract sets is called the iterator. 2. Details2.1 Brief IntroductionThe iterator provides a method to access elements in an aggregate object (SET) sequentially

1 Preface In object orientation, commands are encapsulated in various command objects. Command objects can be passed and reused by different clients at the specified time. The well-designed design pattern is called the Command pattern. 2. Details

The root controller of the program uses UINavigationController. The following code is used: 1. Add code to appdelegate: -(NSUInteger) application :( UIApplication *) application supportedInterfaceOrientationsForWindow :( UIWindow *) window { Return

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 +

-- Preface: although I know the rules for releasing objects in iOS development, I am not sure when the automatically released objects will disappear completely? How long does it exist? What will disappear? I don't know. Every time I release objects

How to select an image filter for Iphone First of all, when you are doing a selfie software, this function will be involved, that is, adding a filter to the image, such as black and white, retro and other effects, to make the photo show different

Solution 1: Delegate your application to a subclass of UIApplication. In the implementation section, override sendEvent: method: -(Void) sendEvent :( UIEvent *) event { [Super sendEvent: event]; // Only reset idle time at the start or end of touch

1. Create an Objective-C class and inherit from UIApplication. 2. Edit. h as follows: # Import // Define the application timeout time in minutes. Therefore, we multiply the value by 60 to convert the time to seconds. # Define

How to quickly read and compress the data in the video card into a video in ios extended development Mobile Phone platform performance is a key issue. The compressed video is divided into three steps: Read video card data, compress with encoder,

1. nil: Generally, it is assigned to an empty object; 2. NULL: It is generally assigned to NULL values other than nil. Such as SEL; Give me a chestnut (so heavy ~) : [NSApp beginSheet: sheetModalForWindow: mainWindow ModalDelegate: nil // pointing

  I. UINavigationBar 1. A navigator controls several view controllers; 2. A navigation controller contains a NavigationBar and a toolBar; 3. one button in UINavigationBar is UINavigationItem (only one) 4. UINavigationItem is not controlled by

The previous article introduced the basic principles and processing procedures of APNs. After introducing the APNs mechanism, let's take a look at how to integrate the APNS service into our own project. First, log on to our Apple Developer

Let's talk about the results of today, the use of the clipboard and the custom clipboard. Direct call of system clipboard In fact, the whole process is very simple. I will use a custom UILable I wrote to call the system clipboard. First, because

  This article is based on Rich Text: DTCoreText [Cpp]# Import # Import // Add this framework @ Interface UIPasteboard (AttributedString)-(Void) setAttributedString :( NSAttributedString *) attributedString;@ End # Import # Import // Add this