IOS

Draw dotted lines and ps dotted lines 1. Draw a dotted line CAShapeLayer * shapeLayer = [CAShapeLayer layer];[ShapeLayer setBounds: self. view. bounds];[ShapeLayer setPosition: self. view. center];[ShapeLayer setFillColor: [[UIColor clearColor]

UITextfield for IOS Learning1. the UITextFieldDelegate agent starts to input the listener: // return NO to disallow editing. -(BOOL) textFieldShouldBeginEditing :( UITextField *) textField; input end listener:-(void) textFieldDidEndEditing :(

Methods and notes for deleting multiple rows in TableView editing. Multiple rows in tableview In the last learning and editing of tableView, how to delete, add, and move a row is implemented through the proxy method, for beginners, note that the

Set proxy process for iOS and proxy process for ios The process of setting proxy for iOS (taking the simulated button as an example) 1. Write Protocol Create a new file named MyButton, which inherits from UIView and declares the myDelegate protocol

Basic Property settings of the swift-UITextfield control and uitextfield attributes   // 1. initialize UITextField Let userName = UITextField (frame: CGRectMake (0,100,100,100 ));   // 2. Add the userName text box to the current view Self. view.

IOS basic UI (8) UIScrollViewWhat is UIScrollView? The screen size of a mobile device is extremely limited. When the displayed content is too large, it cannot be displayed when the screen is exceeded. Therefore, with UIScrollView, you can use the

IOS9 sdk upgrade GuideAfter IOS9 is upgraded, the previously integrated SDK cannot be used to determine whether to install isWXAppInstalled. Baidu found that the upgrade of IOS9 restricts access to the http protocol. SDK1.6.1 official instructions

UITableView Extension: Click cell to close the keyboard, load different cells, and listen for changes in textfeild content, In fact, you only need one sentence to click cell to close the keyboard.-(Void) tableView :( UITableView *) tableView

UITableView loads several different cells. Similar to the above image, a rolling view has many upper-right modules. It is not very convenient to use scrollview. If you want to use it, you can actually use collectionview or tableview. UITableView

Briefly describe how to create UIImage in OC ~~~, Ocuiimage 1. directly use imageNamed for Creation 1 UIImage * image = [UIImage imageNamed: @ "1.jpg"]; Briefly describe the advantages and disadvantages of this method: Advantage: a single line of

IOS development diary 35-Xcode7 debugging magic, ios35-xcode7 Today, the blogger has a need to upgrade Xcode7 and encountered some difficulties. I would like to share with you the hope to make common progress.1. Address Sanitizer: no longer need to

Basic knowledge of IOS development-fragment 25, basic knowledge of ios-Fragment 1: Use @ protocol to implement the delegate and datasource Modes #import @protocol MyViewDataSource,MyViewDelegate;@interface myView :

Powerful swift string and powerful swift string Swift is a collection of hundreds of experts, absorbing the good features of mainstream languages such as java, c, and c ++, so it is very powerful. Today let's take a look at its powerful

IOS-ARC mechanism and iosarc Principle Memory Management is an important topic in software development. If the memory is improperly managed, the memory is exposed, and the program in severe cases crashes. The following describes the ARC (Automatic

Navigation and communication between two apps in iOS and iosapp Jump between apps 1. perform the following operations on the first app; 1. Add a URL types under the Information Property List in the info. plist file. 2. Open item 0 under URL types,

Touches, motion touch Event Response, touchesmotion // Method to override the touch Event Response1 // trigger this method (message sending) during touch 2-(void) touchesBegan :( NSSet *) touches withEvent :( UIEvent *) event {3 UITouch * touch =

ReactiveCocoa talk about concat and reactivecocoaconcat Today's business process is like this. 1. Get the previous data from CoreData 2. Update the interface 3. Get data from the network 4. Determine the result 5. Handle error judgment 6. Update the

IOS network programming-Day4 (using NSURLConnection to obtain data asynchronously)XCode7 uses HTTPS communication, in info. add an attribute @ {@ "NSAppTransportSecurity" in the plist file: @ {@ "NSAllowsArbitraryLoads": YES} xml International

IOS network programming-Day5 (enable Apache with MVC)1. Use xml to retrieve data 1. Write the root node of the tree structure of the xml file (1). (2 ). set root node (3 ). set the subnode. Copy the subnode directly with the same name (4 ). set the

Basic knowledge of IOS development-fragment 24, basic knowledge of ios-Fragment 1: compatible with the font size 6 plue and the following differences #define FONT_COMPATIBLE_SCREEN_OFFSET(_fontSize_) [UIFont systemFontOfSize:(_fontSize_ *([UIScreen