IOS

OC writes NSString to a local file, and ocnsstring writes Recently, the company occasionally encountered some bugs that were not frequently reproduced. In order to debug the bug, we had to record the key values to the local file, check the local

Very powerful shooting action game iOS source code, action game ios source code A horizontal version of the shooting action game. There is a joystick in the lower left to control the object for forward and jump. Click the left side of the screen to

UITableView search: SearchBar and SearchDisplayController; UISearchController, I have previously written an article about using predicate search in tableView. At that time, I used a custom textField. Recently I was writing an e-book and needed to

[Reading Notes] iOS network-HTTP-request content, ios-http- 1. GET method. Retrieving a piece of content from the server is an entity in HTTP terminology. GET requests generally do not contain the Request body, but they can also contain. Some

UISrollView, uiscrollview Scrolling up and down1. contentOffset The default value is CGPointZero, which is used to set the scrollView's scroll offset. // Sets the scrollView's scroll offset. ScrollView. contentOffset = CGPointMake (0,200 );2.

Implement tableview pull-down refresh and tableview pull-down refreshImplement drop-down refresh of tableviewRecommended third-party pull-down refresh code http://code4app.com/ios/%E5%BF% AB %E9%80%9F%E9%9B%86%E6%88%90%E4%B8%8B%E6%8B%89%E4%B8%8A%E6%8

IOS development diary 33-hit-Test, ios diary 33-hit-test Today, the blogger has an hitHest requirement and encountered some difficulties. I would like to share with you the hope that we can make common progress. When we click the interface, how does

IOS Development Learning SUMMARY objective-c object-oriented-member variables, simulation variables, Singleton Mode Variables in OC can be divided into three categories based on their defined locations: member variables, local variables, and global

IOS Development Learning SUMMARY objective-c object-oriented-class and object (bottom) Knowledge Point Security:If the access permission permits, objective-c allows access to member variables directly through objects. Syntax format:Object> member

IOS Development Learning SUMMARY objective-c object-oriented method Objective-c methods cannot exist independently. All methods must be defined in the class. Logically, a method belongs to either a class or an object.Attribute of the Method It is

Learn QR codes for iOS and quickly generate QR codes   A QR code is a token that may be used. The speed at which iOS opens the camera to request a QR code is not comparable to that of Android... (Android scans the QR code back and forth ...) To put

IOS-notes for multilingual adaptation IOS APP internationalization Adaptation involves the following:Localizable. strings File This file is mainly used for the multi-language version of the string, including Localizable. string (English),

UIGestureRecognizer gesture operation, uigesturerecognizer UIGestureRecognizer class is used to detect, recognize the gestures used by users when using devices, and define the basic behavior of all gestures. The following is a subclass of

A series of methods such as the touch event touchBegin in the VIew, viewtouchbegin   5. Touch event touchBegin and other methods   1) press your finger -(Void) touchesBegan :( NSSet *) touches withEvent :( UIEvent *) event; 2) Press and move -

Quartz2D, quartz1. Quartz2D Overview Quartz2D is a two-dimensional Drawing Engine that supports both Mac and iOS systems. Quartz2D can draw graphics, draw text, draw images, generate PDF, crop images, etc. You can also use custom UI controls. For

When iOS solves concurrent requests, it only accepts the results returned by the last request. Although NSOperation cancel cannot cancel the request, it can mark this NSOperation. When the cancel attribute is YES, it indicates that although

IOS multithreading and other supplements 02, ios multithreading supplements 02 NSOperation NSOperation is an abstract class and does not have the ability to encapsulate operations. It must be used as a subclass. NSInvocationOperation

Simple Design of App database elements and app database elements For example, you can design simple database elements for <>; Analysis page: Simple Douban has the following pages { Activity page Activity details page Movie page Movie details

Ios UITableViewController (2) tableView editing mode. iostableview deletes rows. Edit mode of tableView The table view can enter the editing mode. When you enter the editing mode, you can delete, insert, and move cells. : 　　 There are two ways to

Five minutes, I used the cocoaui library to build my interface in mainstream iOS apps, cocoauiios This project is based on the daily group purchase project, which was mentioned in the previous article! First, we will introduce some cocoaui, which is