In iOS, Apple has encapsulated a class and opened the corresponding IPA. The corresponding class is nsfilemanager and the file management class.
Instantiation:
Nsfilemanager * manage = [nsfilemanager defaultmanager];
Create a file directory
+ (Nsprocessinfo *) processinfo // return the information of the current process-(nsarray *) Arguments // return the parameters of the current process in the form of an nsstring object array-(nsdictionary *) environment // return the dictionary of
Recently, I have been studying the application of online playback,
The main idea is
1. Knowledge about cfnetwork. framework is required for HTTP data download.
2. Learn about audio file stream service and audio queue service in audiotoolbox.
Original address: introduction and use of new APIs in iOS 5
1. uistepper
UIStepper *stepper = [[UIStepper alloc] initWithFrame:CGRectMake(200, 100, 0, 0)]; [stepper sizeToFit]; stepper.value = 0; stepper.minimumValue = 0;
Original address: iOS 6 Social application development-Sina Weibo
1. Add framework.
2. Import the header file.
#import #import
3. Make sure that the account for the social networking application is configured in "Settings" (take Sina Weibo as
Original address: opencv for iOS Study Notes (7)-gesture marking Simulation
Previously, we have obtained a precise marking corner point. We can simulate the transformation between the mark in the camera and the 3D space. In this process, we will
Original address: iOS 6 Apple map app (mapkit)-open external app
In iOS 6, Apple changed Google map to its own map, which looks good.
:
Lower than iOS 6 (Google map web)
IOS 6
Implementation Code
Predefine Declaration for importing and
Original address: opencv for iOS Study Notes (3)-camera
Video capturing and Ar visualization are indispensable for augmented reality applications.
In the video capture phase, frames are received from the camera and then transmitted to the
Original address: Text replication for iOS development
This article is based on Rich Text: dtcoretext
# Import # import // Add this framework @ interface uipasteboard (attributedstring)-(void) setattributedstring :( nsattributedstring *)
Original address: Required URL for iOS development
Basics-developer guide for iOS mobile app development Chinese edition | objective-C basics | C/C ++ basics | C ++ tutorials
Map-amap api | Baidu Map
Upload-Developer Center | iTunesConnect |
Original address: xmppframework iOS development (1)
XMPP: The extensible messaging and presence protocol Chinese Full name: extensible communication and representation Protocol Introduction: extensible communication and representation protocol
When we use it, do we feel that the shake function is dazzling? Is it difficult to implement it?
In fact, otherwise, these are all encapsulated by Apple, which provides a very simple portal for me.
These methods are available in uiresponder:
-
Scenario
When we use an application, when we open the application, if the application has a new version, we can often give a prompt in the application, whether to update the application. So let's take a look at how version updates are
When we call this function, we often call this method:
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel://xxxxx"]];
However, after the function is implemented, you cannot return to your application after the call is completed.
I recently encountered a problem of time String Conversion during XML parsing of Sina RSS news.
The problem is: Wed, 3 Apr 2013 04:11:02 GMT (this data is obtained in the XML file) to extract 04:11:02 from this string.
Note: For GMT, note that
During the Sina Weibo client process, a third-party library was accidentally found on the internet due to the problem of thumbnail enlargement and display of Weibo content. It is very suitable for this job. After a little research, it is probably
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