iPhone QR Code Generator generate, create 2d barcode QR Code images in iPhone (iOS) application

Generate & Print QR Code barcode images in iPhone (iOS) Application

  • Fast create linear and 2D barcodes in iOS apps.
  • Source code is provided to build with iOS SDK that best fits for your application.
  • Easy to integrate the barcode generation functionality into your developmental iPhone projects
  • Completely written in Objective-C
  • Mac OS X 10.6 and greater are required
  • Compatible with Xcode 3.2 and above
  • Compatible with iOS 3.2 and above version, and works with iPhone 6,iPhone 5, iPhone 4S, iPhone 4, iPhone 3GS, etc
  • All barcodes are compatible with the latest barcode symbologies ISO standard
  • All the functionality of barcode type control is implemented in a single, small file



iPhone QR Code Barcode Generator Introduction

iPhone QR Code Generator SDK is a QR Code generator component designed for iOS project developers who need add QR Code creation features into their developmental apps for iPhone.

  • QR Code generation support on desktops as well as servers
  • Generate QR Code on iPhone client apps, without communicating with a server
  • Complete iPhone QR Code Generator Guide provided with iPhone QR Code generation demo project

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QR Code is a matrix code (or two-dimensional bar code) created by Japanese corporation Denso-Wave in 1994. The "QR" is derived from "Quick Response", as the creator intended the code to allow its contents to be decoded at high speed.


QR Code Valid Data Scope

iPhone QR Code supports:

  • numeric data (digits 0 - 9);
  • alphanumeric data (digits 0 - 9; upper case letters A -Z; nine other characters: space, $ % * + - . / : );
  • byte data (default: ISO/IEC 8859-1);
  • Kanji characters.


How to generate barcode in Objective-C?

  1. Create a barcode object
  2. Set barcode properties
  3. call drawWithView() method, to paint barcode on the canvas.

Sample Code:
- (void)drawRect:(CGRect)rect {
    // Drawing code
    OBLinear *pLinear = [OBLinear new];
    [pLinear setNBarcodeType: OB_CODE128A];
    [pLinear setPDataMsg: [[NSString alloc] initWithString: (@"AB")]];
    //[pLinear setPSupData: [[NSString alloc] initWithString: (@"14562")]];
    [pLinear setFX: USER_DEF_BAR_WIDTH];
    [pLinear setFY: USER_DEF_BAR_HEIGHT];
    [pLinear setFLeftMargin: (USER_DEF_LEFT_MARGIN)];
    [pLinear setFRightMargin: (USER_DEF_RIGHT_MARGIN)];
    [pLinear setFTopMargin: (USER_DEF_TOP_MARGIN)];
    [pLinear setFBottomMargin: (USER_DEF_BOTTOM_MARGIN)];
    [pLinear setNRotate: (OB_Rotate0)];
    UIFont *pTextFont = [UIFont fontWithName: @"Arial" size: 8.0f];
    [pLinear setPTextFont: pTextFont];
    [pLinear drawWithView: (self)];
    [pLinear release];

iPhone QR Code Generator - QR Code Properties

Category Class Properties Default Comments
Basic pData "" NSString. QR Code data to encode
QR Code
bProcessTilde false BOOL. Set the bProcessTilde property to true, if you want use the tilde character "~" to specify special characters in the input data. Default is false.
~NNN: is used to represent the ASCII character with the value of NNN. NNN is from 000 - 255.
  • OB_QRCODE_DATA_MODE.OB_QRCODE_Auto: It allows encoding all 256 possible 8-bit byte values. This includes all ASCII characters value from 0 to 127 inclusive and provides for international character set support
  • OB_QRCODE_DATA_MODE.OB_QRCODE_AlphaNumeric: It allows encoding alphanumeric data (digits 0 - 9; upper case letters A -Z; nine other characters: space, $ % * + - . / : ).
  • OB_QRCODE_DATA_MODE.OB_QRCODE_Byte: It allows encoding byte data (default: ISO/IEC 8859-1).
  • OB_QRCODE_DATA_MODE.OB_QRCODE_Numeric: It allows encoding numeric data (digits 0 - 9).
  • OB_QRCODE_DATA_MODE.OB_QRCODE_Kanji: It allows encoding Kanji characters.
QRCode Error Correction Level. Default is OB_QRCODE_ECL.OB_QRCODE_L (0).
nECI 3 int. Valid values are from 000000 to 999999.
nFnc1 - -
applicationIndicator - OB_FNC1
bStructuredAppend false BOOL. Set bStructuredAppend property to true, then Structured Append is enabled.
nSymbolCount 0 int. the number of total symbols which make the sequence.
nSymbolIndex 0 int. the position of current symbol in the secuence (Start with 0).
nParity 0 int
Valid values are :
OB_QRCODE_V10 = 10,
OB_QRCODE_V11 = 11,
OB_QRCODE_V12 = 12,
OB_QRCODE_V13 = 13,
OB_QRCODE_V14 = 14,
OB_QRCODE_V15 = 15,
OB_QRCODE_V16 = 16,
OB_QRCODE_V17 = 17,
OB_QRCODE_V18 = 18,
OB_QRCODE_V19 = 19,
OB_QRCODE_V20 = 20,
OB_QRCODE_V21 = 21,
OB_QRCODE_V22 = 22,
OB_QRCODE_V23 = 23,
OB_QRCODE_V24 = 24,
OB_QRCODE_V25 = 25,
OB_QRCODE_V26 = 26,
OB_QRCODE_V27 = 27,
OB_QRCODE_V28 = 28,
OB_QRCODE_V29 = 29,
OB_QRCODE_V30 = 30,
OB_QRCODE_V31 = 31,
OB_QRCODE_V32 = 32,
OB_QRCODE_V33 = 33,
OB_QRCODE_V34 = 34,
OB_QRCODE_V35 = 35,
OB_QRCODE_V36 = 36,
OB_QRCODE_V37 = 37,
OB_QRCODE_V38 = 38,
OB_QRCODE_V39 = 39,
OB_QRCODE_V40 = 40
Size Related uom 0 Unit of meature for all size related setting in the library.
0: pixel; 1: cm; 2: inch.
fX 2 width of barcode module (narrow bar), default is 2 pixel
fBarcodeWidth 0 generted barcode image width
fBarcodeHeight 0 generted barcode image height
fLeftMargin 0 image left margin
fRightMargin 0 image right margin
fTopMargin 0 image top margin
fBottomMargin 0 image bottom margin
nResolution 72 in DPI
nRotate 0 OBRotate. Valid values:
OB_Rotate0 = 0,
OB_Rotate90 = 1,
OB_Rotate180 = 2,
OB_Rotate270 = 3

iPhone Barcode Generator Supporting Barcode Types

OnBarcode is a market-leading provider of barcode imaging generator, reader controls and components for ASP.NET, Windows Forms, WPF, as well Java, Android, iOS (iPhone, iPad) across all major enterprise development platforms. We provides comprehensive tutorials and how-tos for various linear, 2d barcode information, such as C# in ASP.NET, C# .NET, C# Barcode Encoding, C# Barcode Image, VB.NET in ASP.NET, VB.NET Winforms, VB.NET Barcode Encoding. OnBarcode barcode products are supported by RasterEdge ASP.NET Document Viewer, which supports ASP.NET PDF Viewer, ASP.NET MVC Document Viewer, ASP.NET PDF Editor, MVC PDF Viewer. And provide high quality C# Convert PDF to Tiff, C# Convert PDF to Word, C# Convert PDF to HTML, C# Convert PDF to Jpeg images, and their easy and simple documents, like C# PDF SDK, C# extract text from PDF, C# Compress PDF, Print PDF in C# and C# extract image from PDF.
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