blockchain scan qr code

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QR code synthesis, Apple and android (ios and android) are combined into a QR code, allowing users to scan a QR code to download apple and android apps separately. android QR code scanning

QR code synthesis, Apple and android (ios and android) are combined into a QR code, allowing users to scan a QR code to download apple and android apps separately. android

iOS QR Code scan (System comes with QR code scan)

, Self.imageLine.frame.size.width, Self.imageLine.frame.size.height);if (Linevalue ==minvalue) {down = YES;up = NO;}}}/** This is the proxy method that must be implemented, and from this method you can get the scanned url*/#pragma mark-avcapturemetadataoutputobjectsdelegate-(void) Captureoutput: (Avcaptureoutput *) captureoutput didoutputmetadataobjects: (Nsarray *) metadataobjects Fromconnection: (avcaptureconnection *) connection{NSString * STRINGVALUE;if ([metadataobjects count] > 0) {[Self.s

Use ZBar in iOS to scan the QR code to customize the scan interface, and use ioszbar to scan the interface

Use ZBar in iOS to scan the QR code to customize the scan interface, and use ioszbar to scan the interfaceZXing has been used in Android to identify QR codes. ZXing also has the corresponding iOS version. After understanding it, Z

IOS native QR code scan with scan box and scan process animations

= [Uicolor Whitecolor];Msg.textalignment = Nstextalignmentcenter;Msg.font = [Uifont systemfontofsize:16];Msg.text = @ "The two-dimensional stacking into the box, you can identify the ticket";[Self.view addsubview:msg];[Msg makeconstraints:^ (Masconstraintmaker *make) {Make.top.equalTo (Centerview.bottom). Offset (20);Make.left.equalTo (Self.view.left);Make.right.equalTo (Self.view.right);Make.height.equalTo (30);}];}-(void) addanimation{Cabasicanimation *animation = [self moveytime:2 fromy:[nsn

IOS AV Foundation QR code scan read QR code content using synthetic speech

IOS AV Foundation QR code scan read QR code content using synthetic speech In the previous section, we provided a visual display of the QR code recognized by the program. In this sectio

Scan QR code/generate QR code in iOS

Scan QR code/generate QR code in iOS Recently, I have been asking you if you have any demos for QR codes. To meet your needs, I have studied them and hope they can help you! Indicates the Root View: self.window.rootViewController

Automatically generate QR code (automatically download software by mobile phone scan) and automatically generate QR code by mobile phone

Automatically generate QR code (automatically download software by mobile phone scan) and automatically generate QR code by mobile phone Js Reference Library download: jquery-1.8.3.min.js jquery. qrcode. js Note: To Call methods in the js library, you only need to provide t

HTML5 implementation of scan recognition QR code/generate QR code

Scan recognition QR codeIdea: 1. Operate the camera and get pictures.HTML5WebRTC's Navigator.getusermedia method to get camera resources in real time. 2. Use the canvas to analyze the image recognition image using the relevant algorithm toanalyze the QR code with Jquery.qrcode. (Technical point: Getimagedata)Limitation

IOS easy-to-use QR code scan and generate QR code three-party control Lfqrcode, flexible custom UI

The scanned control is a view, and the user simply needs to stick it in their own controller. Other UI users can add them at their own controller. The code is as follows- (void) viewdidload {[Super viewdidload]; //Scan active area (i.e. transparent area within the box)CGRect Interestrect = CGRectMake ( -, (Self.view.frame.size.height-(Self.view.frame.size.width- +))/2.0f, Self.view.frame.size.width- +, Self

IOS AV Foundation QR code scan 03 Add visualizations for scanned QR codes

; [_previewview.layer Addsublayer:cornerspathlayer]; }]; });} Create a nsmutableset to traverse the detected QR code. Handles an object of type Avmetadatamachinereadablecodeobject. Converts the bounds and corner coordinates of an image. Converts the relative coordinates to the coordinates of the container view. Process the QR

[JQuery] use the jquery-qrcode plug-in to convert the URL into a QR code. You can scan the QR code on your mobile phone to access jqueryqrcode.

[JQuery] use the jquery-qrcode plug-in to convert the URL into a QR code. You can scan the QR code on your mobile phone to access jqueryqrcode. First, find jquery-qrcode in github and Select Download ZIP to Download (click the link to open) Download a compressed package jqu

IOS native QR code scan (can limit scan area)

The main reason for writing this article is not to show how to use avfoundation for QR code scanning, but also to limit the scope of scanning QR code. (Because the default is full screen scanning)The project encountered the function of scanning QR

"Go" iOS native QR code scan (can limit scan area)

After using Avfoundation to complete the scan code, there are 2 problems: 1, how to limit the scan range? 2. How is the barcode scanned? A friend's article helped me, specially transferred, can help the needy friend. Original: http://www.2cto.com/kf/201411/356046.html The main reason for writing this article is not to show how to use avfoundati

IOS native QR code scan (restricted scan Areas)

IOS native QR code scan (restricted scan Areas) The main reason for writing this article is not to show how to use AVFoundation for QR code scanning, but to limit the scanning range of QR

Use ZBar in iOS to scan the QR code and customize the scan interface

Use ZBar in iOS to scan the QR code and customize the scan interfaceZXing has been used in Android to identify QR codes. ZXing also has the corresponding iOS version. After understanding it, ZBar is also a common QR

Android uses the zbar QR code scan to resolve Chinese Garbled text and scan region definitions.

Android uses the zbar QR code scan to resolve Chinese Garbled text and scan region definitions. Preface (this is an update to the previous blog post [android uses zbar QR code scanning ]) Project download zbarLib compilation Proje

IOS system QR Code scan (can limit scan area)

Use the Avfoundation system library to scan the QR code and limit the scope of the QR code. (Because the default is full screen scanning)-(void) Begincode{1. Camera DeviceAvcapturedevice *device = [Avcapturedevice defaultdevicewithmediatype:avmediatypevideo];/*Media typesAvm

iOS development native scan QR code implementation and limit scan area rectofinterest encounter some pits

= self.view.frame.size.width;//of the Avcapturevideopreviewlayer objectfloat height = self.view.frame.size.height;//of the Avcapturevideopreviewlayer objectOutput.rectofinterest=cgrectmake (100/height, (Width/2 -110)/width, 220/height, 220/width);CGRectMake (y, x, height, width);Initializing linked objectssession = [[Avcapturesession alloc]init];High quality acquisition Rate[Session Setsessionpreset:avcapturesessionpresethigh];[Session Addinput:input];[Session Addoutput:output];Set the encoding

zxing QR Code Refinement (portrait, stretch, scan box size and Scan line movement)

(frame.left-6, Frame.top + i-6, Frame.right + 6,frame.top + 6 + i);Linedrawable.setbounds (Mrect);Linedrawable.draw (canvas);RefreshInvalidate ();} else {i = 0;}[/mw_shl_code]Two line styles are used here, one is a gradient line, and the other is a similar picture scan line.detailed code please see the attachment source.Run as follows:In addition, after the successful

Android uses zbar QR code Scan-(to solve Chinese garbled and scan region definition)

Write at the top (this is an update to the previous blog post on "Android using zbar QR code Scan")Project download Zbarlib compile project project download 0 pointsBugIn 2.3 of the system holder need to set type, otherwise it will be black screen (thanks to the Netizen "(Α⒎ to Sんа) 294439435")Com.example.qu.MainActivity the 50th row of Mholder.settype (surfaceh

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