ios 10 2

Li huaming himiOriginal, reprinted must be explicitly noted:Reprinted from[Heimi gamedev block]Link: http://www.himigame.com/iphone-cocos2d/472.html Himi has always wanted to use the Particle System in the game, but it was found that the effect of using particles in the j2's and Android systems would put a burden on the running memory of the game, so it has been a pity that, in iOS game development, it can be said that particles must be used, or A

IOS basic UI (10) UIPickerView and UIDatePicker UIPickerView and UIDatePicker are relatively simple to use. The following is a simple example to learn more about them. UIPickerView1.UIPickerView attributes // Data source (used to tell UIPickerView how many rows are there) @ property (nonatomic, assign) id DataSource; // proxy (used to tell UIPickerView what is displayed in each row of each column and

); /** * Using the ChangeColor defined above to declare a block, the block declared must comply with the requirements of the Declaration. */ @property (nonatomic, copy) ChangeColor BackgroundColor; @end -(void) TouchesBegan: (nssetuitouch *> *) touches withevent: (uievent *) event{//declares a color UIColor *color = [ Span class= "hljs-built_in" >uicolor Redcolor]; //with the block just declared to modify the background color of the previous interface self.backgroundcolor (c

*bodydata = [NsmutabledaTA data]; [Bodydata appenddata:[startstr datausingencoding:nsutf8stringencoding]; NSData *imagedata = uiimagepngrepresentation (self.imageView.image); [Bodydata Appenddata:imagedata]; [Bodydata appenddata:[endstr datausingencoding:nsutf8stringencoding]; [Request Sethttpbody:bodydata]; 5> specify Content-type, when uploading the file, you need to specify Content-type and content-length nsstring *contentstr = [NSString stringwithformat:@] Multipart/form-

Original URL: http://www.voidcn.com/blog/u012198553/article/p-4976772.htmlConverts a hexadecimal string to NSData-(NSData) Transstrhextodata: (nsstring) Strhex{Bytes IndexNsuinteger j = 0;Nsinteger len = Strhex. length;if (len%2 = =1) {If it is not divisible by 2, then the 16-binary string does not satisfy the picture graph. It is hereby stated that if you simply convert the 16 into NSData, you can kill the

------Structure and classification of the programThe structure of the program has three types, respectively:1, sequential structure: A simple program structure, he has a number of sequential steps to perform the processing of the composition.Program Flow statement 2--Statement 3--....2, Branch structure: The program encountered some conditions to judge, the process according to whether the conditions are se

IOS development-UI (10) Use UIScrollView and UIPageControl,-uiuiscrollview Knowledge point: 1. Use UIScrollView 2. Use UIPageControl @ Interface RootViewController () ====================================== Use UIScrollView 1. Create UIScrollView 2. Common attributes 1) scroll content size @ Property (nonatomic) CGSize

: (Nsindexpath *) Indexpath{if (indexpath.row% 2) {return uitableviewcelleditingstyleinsert;} else {return uitableviewcelleditingstyledelete;}return uitableviewcelleditingstyleinsert;}4,cell will be called when it is selected or uncheckedIf you are a custom cell control, all child controls should be added to the Contentview-(void) setselected: (BOOL) selected animated: (bool) Animated {[Super setselected:selected animated:animated];Configure The view

Well, after these days of study, my first iOS app, Diary is finished, write a diary below, record the knowledge learned and need to continue to learn the place.1, first of all viewcontroller, must add two Protocols Uitableviewdatasource and Uitableviewdelegate must implement the two methods of these two protocols,TableView Numberofrowsinsection and TableView Cellforrowatindexpath, the former returns the number of rows the latter sets the line contents

' String ' does not conform to protocol ' Intervaltype 'When the switch statement is in the string? This error occurs when a match is made. For example: Switch Item.name {case "arrives on site time": Cellitems.append (item) Default:break} Modify the following statement to resolve this error: If let name = Item.name{switch name {case "arrives on site time": Cellitems.append (item) Default:break}} 128, pod update often error occurred: Attempt to read nonexistent folderCocoapod server is wall, ple

: (Uiscrollview *) ScrollView Withview: (UIView *) view{NSLog (@ "%s", __func__);}3> is scaling, and usually does not need to implement-(void) Scrollviewdidzoom: (Uiscrollview *) ScrollView{NSLog (@ "%s", __func__);NSLog (@ "%@", Nsstringfromcgaffinetransform (Self.imageView.transform));}4> to complete the scaling, and usually does not need to implement-(void) scrollviewdidendzooming: (Uiscrollview *) ScrollView Withview: (UIView *) View Atscale: (cgfloat) scale{NSLog (@ "%s", __func__);}_______

(with) the parameter[P test:@ "123"]; Equal to the following (SEL's creation sel s =@selector (test:); )[P performselector: @selector (test:) withobject:@ "456"];1>Turn the string into Selsel s=nsselectorfromstring (@ "name");2>Change the Sel object to a string NSString object_cmd represents the current method ([email protected] (test); )nsstring *str = Nsstringfromselector (@selector (test)); NSString*str =Nsstringfromselector (_cmd); add: There is

it;Uibarbuttonsystemitemtrash: Image button with a trash bin on it;Uibarbuttonsystemitemplay: Image button with a play icon on it;Uibarbuttonsystemitempause: Image button with a pause icon on it;Uibarbuttonsystemitemrewind: Image button with a rewind icon on it;Uibarbuttonsystemitemfastforward: Image button with a fast forward icon;5, therealization of Uibarbuttonitem events1- (void) Leftbuttonaction: (uibarbuttonitem*) leftaction{2 3Uialertview *lef

embedded mobile phone componentTwilio: Voice and message.UberConference: Meeting.SIPML5 developers have created the Webrtc2sip gateway, and WEBRTC communicates between the phone and the computer by using Openbts cell.More...WebRTC Codelab: Step-by-step instructions tell you how to create a text and video chat app that uses the Socket.io signaling service that runs on node.Google I/O WebRTC presentation with WebRTC Tech leads, Justin Uberti.Chris Wilson ' s SFHTML5 presentation:introduction to W

:@ " Login"]) { *ctl = segue.destinationviewcontroller; // Assign Value = self.userNameTF.text; = self.passWordTF.text; }2. Reverse value (traditional block, protocol agent, Notification Center, single-pass value still works)-(Ibaction) Unwind: (Uistoryboardsegue *) SegueFunction: Called when returning to the previous scene//the method of Uistoryboard in the connection//the method of jumping back is implemented befo

original linkA big change in IOS 10 is stronger privacy data protection. This is described in the documentation: You must statically declare your app ' s intended use of protected data classes by including the appropriate purpose string Keys in your info.plist file. Simply said access to user data needs to be declared in info.plist now, otherwise it will be crash.These user data include: Conta

Original address: opencv for iOS Study Notes (10)-mark detection Summary If you keep following our tutorial, you can run the program as follows: Even if we do not use a three-dimensional rendering engine for visualization, we have obtained all the necessary data. Let's sum up what we get: 1. One frame from the bgra format of the camera 2. Correctly used a