IOS

Determine when to use the thread and use the thread   A thread or execution thread is a branch of a computer program, which can lead to two or more concurrent tasks. Threads are included in computer programs.   Basically, if the application

First, "CocoaPods learning", cocoapods ========================================================== ==================================== | Reprinted must indicate the blog address: http://www.cnblogs.com/devappnow | | Respect originality and others'

ExtendedLayout and UIViewController of the uiviewcontroller

Ios development-common methods of application data storage-plist access method, iosplist [Note] reprinted, please indicate the source of blog Park-eat Tang sick Wukong http://www.cnblogs.com/hukezhu/   Common Data Storage Methods for ios apps

PresentViewController: How to Avoid overwriting the original viewController interface, uipageviewcontroller How does PresentViewController not block the original viewController interface? Sometimes, you may need to bring up a View with relatively

[Oc learning diary] NSDate, oc learning diary nsdate First, we will introduce how to return date objects. 1 // obtain the current date and time 2 NSDate * now = [NSDate date]; 3 NSLog (@ "% @", now ); 4 // return the date and time 5 NSDate * mydate19

[IOS] UITableViewController UITableViewController can adapt to the keyboard itself (the focus of the control in the cell will be moved to the top of the keyboard I thought about the following solution when I was doing keyboard retrieval: 1. Add a

How does ios determine that the date is a weekend? -(NSString *) calculateWeek :( NSDate *) date {// calculate the number of week NSCalendar * myCalendar = [NSCalendar currentCalendar]; myCalendar. timeZone = [NSTimeZone systemTimeZone]; NSInteger

IOS_UITextField basic operationsBasic operations UITextField * userNameTextField = [[UITextField alloc] init]; userNameTextField. frame = CGRectMake (30,100,220, 50); [self. window addSubview: userNameTextField]; [userNameTextField release]; // set

Objective-C Introspection and introspection Introspection is a powerful feature of the object-oriented language and environment. Objective-C and Cocoa are particularly rich in this aspect. Through introspection, You can dynamically query the

Add, delete, modify, and query ios FMDB initial experience I haven't seen you again for a long time. Miss you. Today I wrote an article about the use of fmdb. At work, we sometimes use databases, so you need a useful tool. Let's start with the topic.

IOS uses UITableView to select province and city from plist Recently, a weather application needs to be used to select a city. Considering that city information is not subject to major changes, the xml file of Chinese city information is found on

[Study Notes] [C Language] memory Analysis of variables, learning notes C language Variables1. bytes and address To better understand the storage details of variables in the memory, first let's take a look at the "Byte" and "Address" in the memory "

[Learning notes] [C Language] variable, learning notes variable1. What is a variable? When the value of a data item needs to be changed frequently or uncertain, It should be represented by a variable. For example, game points.2. Define Variables 1>

IOS development-UITableView, the most common controlUITableView Set dataSource and delegate of UITableViewDisplay of multiple groups of data and single group of data in UITableViewCommon attributes of UITableViewCellUITableView performance

Ios touch screen event Guide This article mainly summarizes two methods for implementing ios touch-screen events, which are simple and practical. For more information, see. The Code is as follows: // Add the range to identify the touch event in a

How to disable the keyboard for IOS In iOS application development, three types of view objects enable the virtual keyboard for input operations, but there is no automated method for disabling the virtual keyboard. We need to implement this by

Time conversion methods in ios development This article mainly introduces the time conversion methods in ios development. For more information, see When developing iOS programs, you sometimes need to adjust the time format to the desired format. In

Ios Mobile file method summary This article mainly summarizes the mobile file methods in ios, from simple to complex, very practical. If you need it, you can refer to it. This objective c code is used to move objects in a specified path. The Code is

Objective C: Image download method summary from remote url This article will share with you two ways to use Objective C to download images from a remote url. They are all used in personal projects. We recommend them to you in summary. If you need