IOS

After ios5.1.1 is jailbroken, I want to upgrade to ios6. The result is an error. Then I want to go back first, and the result is an unknown error. I checked it from the Internet and said that I had to download the firmware first, and then I went

The following macros are briefly introduced: 1) _ va_args _ is a macro of a variable parameter. The macro of this variable parameter is added in the new c99 specification, currently, only GCC is supported (not supported by the vc6.0 compiler ). #

1. Hide the status bar [[uiapplication sharedapplication] setstatusbarhidden: Yes animated: No]; 2. Open the mobile album First, introduce the uiimagepickercontrollerdelegate protocol. Uiimagepickercontroller * imgpickercontroller =

Introduction: EnumerationValueIt isINTEGER (INT)In addition, it is not involved in memory usage and release,You can use enumeration variables directly without initialization. Only one purpose of enumeration is to increase the readability of the Code.

Introduction: Push notification is maintained by mobile devicesConcept of always onlineAs a core way, when people leave the desktop Internet and want to receive the relevant information in the first time, the emergence of push notifications will be

Introduction: Sina Weibo has opened up almost all APIs for data on the platform. Therefore, many excellent third-party Weibo clients provide comprehensive functions. The SNS sharing and promotion methods have been widely used in the app world, and

Abstract: record some blog posts written by very cool people on the Internet. Add them to favorites for future study. 1: javascript communication between uiwebview and objective-C in

Document directory 1. Important uinavigationcontroller Parameters 2. Create uinavigationcontroller 3. Full Screen uinavigationcontroller 4. Adjust the content of navigation and related event streams 5. display the navigation Toolbar 6.

IOS developers will certainly encounter random numbers. For the moment, there seems to be an arc4random (). So if you want to get a random number from 80 to 100, you can write it as int randomnumber.=Arc4random ()+ 80Int Index = Arc4random () % 6 + 1

1. Preface Apple development has always been desired by everyone, but because the entry threshold is not low (MAC machines are indeed expensive, and it also needs to make them learn the object C basics), it is so frustrating for everyone, however,

1. Preface Now let's embark on a magical iOS development journey ~2. Build the hell IOS World project 2.1 click xcode> File> New> project and select page-based application. 2.2 click Next to enter the project configuration information Enter

Icarousel: simplifies the implementation of various carousel view switching Effects Icarousel simplifies the implementation of various view switching effects of carousel Trojans, such as pages, carousel views, and cover streams. It supports highly

1 Preface The Bi integration in xcode is rich in controls, but sometimes it cannot meet our needs. Today we will learn how to use XIB to customize a uiview for reuse.2. Detailed Process Directory View: 2.1 create a single view application IOS

1. First, make it clear:The pixel resolution of the iPhone 3g/3gs screen is 320x480;IPhone 4 and iPod tou4's screen pixel resolution is 640x960. 2. In order to be compatible with apps before IOS 4.0 and run on iOS 4, Apple designed a logical

In iOS, you often need to dynamically specify the uilabel, uitextview, uitableviewcell, and other heights Based on the string content. In this case, you need to dynamically calculate the height of the string content, the calculation method is as

Conversion of IOS nsdictionary, nsdata, and JSON Data Types Conversion of data types is often used in IOS. The following lists conversions of common types. 1. nsdictionary type to nsdata type: //NSDictionary -> NSData:NSDictionary *params =

Reference [1] http://developer.apple.com/library/ios/#documentation/EventHandling/Conceptual/EventHandlingiPhoneOS/Introduction/Introduction.html#//apple_ref/doc/uid/TP40009541-CH1-SW1 1. Event Type It mainly involves three types of events: Touch,

1. iOS map: Google map and Apple Map # Define system_version_less_than (V) ([[uidevice currentdevice] systemversion] compare: V Options: nsnumericsearch] = nsorderedascending) -(Ibaction) daohang {If (system_version_less_than (@ "6.0") {// under ios6

Reposted from: www.dreamingwish.com Loadview, viewdidload, and viewdidunload. How should these three functions be used? Google, all of them are reprinted. The general content is as follows: Loadview manual loading View After viewdidload is used

To achieve this, ESRI ArcGIS 10.1.1 uses the GPS device in ios skd to navigate the map. References: http://gis.stackexchange.com/questions/57487/force-arcgis-ios-to-use-gps-data-from-external-gps-device Example:Http://www.arcgis.com/home/item.html?