Android Code 39 Generator generate, create barcode Code 39 images in Android application

Code 39 Generator for Android to Generate Code-39 Barcodes in Android Application using Android Barcode Generator Library

  • Easy to use Android Code 39 generation api
  • Developed from Java Code 39 barcode generator
  • Compatible with Android 1.5 SDK and later versions
  • Easy to add the Code 39 SDK into Android apps
  • Generate high quality Code 39 barcode with the Android Code 39 SDK
  • GIF, JPEG, and PNG are supported by the Android Code 39 Barcode Generator
  • Reliable and mature Android barcode library for Code 39 generation
  • Compatible with the latest Code 39 barcode symbology standard
  • Android Code 39 source code is available for the purchase of the Source Code license


Index
 

Android Code 39 Barcode Generator Introduction

Android Code 39 barcode API is a Code 39 generator for Android apps, designed for creating Code 39 barcode on Android platform.

  • Android Code 39 SDK is entirely developed for Android platform
  • Android Code 39 generator is completely built in Android 1.5 SDK
  • Developer Licenses for this Android Code 39 library are royalty-free and perpetual

Code 39 (also known as "USS Code 39", "Code 3/9", "Code 3 of 9", "USD-3", "Alpha39", "Type 39") is a barcode symbology that can encode uppercase letters (A through Z), digits (0 through 9) and a handful of special characters like the $ sign.

Code 39 is restricted to 44 characters. In Full ASCII Code 39 Symbols 0-9, A-Z, "." ,and "-" are the same as their representations in Code 39. Lower case letters, additional punctuation characters and control characters are represented by sequences of two characters of Code 39.

OnBarcode offers several Code 39 Generator components and software, such as Code 39 .NET, Code 39 Java, Code 39 C#, Code 39 VB.NET, Code 39 ASP.NET, Code 39 Generator.

 

Code 39 Valid Data Scope

Android Barcode Code 39 supports:

  • 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
  • Uppercase letters (A - Z)
  • - (Dash), $ (Dollar), % (Percentage), (Space), . (Point), / (Slash), + (Plus)

Android Barcode Code 39 Extension supports:

  • all 128 ASCII characters

 

How to generate Code 39 barcodes in your Android application?

Generating barcode Code 39 in Java Class example

	Code39 barcode = new Code39();
	
	/*
	   Code39 Valid data char set:
	        0, 1, 2, 3, 4, 5, 6, 7, 8, 9 (Digits)
	        A - Z (Uppercase letters)
	        - (Dash), $ (Dollar), % (Percentage), (Space), . (Point), / (Slash), + (Plus)
	
	   Code39 extension Valid data char set:
	        All ASCII 128 characters
	*/
	// Code39 encodes upper case chars only, for lower case chars, use Code 39 extension
	barcode.setData("123456789012");
	
	barcode.setExtension(false);
	
	barcode.setAddCheckSum(true);
	
	// Code 39 Wide Narrow bar Ratio
	// Valid value is from 2.0 to 3.0 inclusive.
	barcode.setN(3.0f);
	// The space between 2 characters in code 39; This a multiple of X; The default is 1.;
	// Valid value is from 1.0 (inclusive) to 5.3 (exclusive)
	barcode.setI(1.0f);
	barcode.setShowStartStopInText(true);
	
	// Unit of Measure, pixel, cm, or inch
	barcode.setUom(IBarcode.UOM_PIXEL);
	// barcode bar module width (X) in pixel
	barcode.setX(1f);
	// barcode bar module height (Y) in pixel
	barcode.setY(75f);
	
	// barcode image margins
	barcode.setLeftMargin(10f);
	barcode.setRightMargin(10f);
	barcode.setTopMargin(10f);
	barcode.setBottomMargin(10f);
	
	// barcode image resolution in dpi
	barcode.setResolution(72);
	
	// disply barcode encoding data below the barcode
	barcode.setShowText(true);
	// barcode encoding data font style
	barcode.setTextFont(new AndroidFont("Arial", Typeface.NORMAL, 12));
	// space between barcode and barcode encoding data
	barcode.setTextMargin(6);
	barcode.setTextColor(AndroidColor.black);
	
	// barcode bar color and background color in Android device
	barcode.setForeColor(AndroidColor.black);
	barcode.setBackColor(AndroidColor.white);
	
	/*
	specify your barcode drawing area
	    */
	    RectF bounds = new RectF(30, 30, 0, 0);
	barcode.drawBarcode(canvas, bounds);
 

Android Code 39 Barcode Properties

Barcode Java Class: com.onbarcode.barcode.android.Code39.

Category Properties Value Comments
Basic Property: data Type: String
Default: ""
Code 39 barcode data to encode

Code 39 Valid Data Char Set:
  • 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 (Digits)
  • A - Z (Uppercase letters)
  • - (Dash), $ (Dollar), % (Percentage), (Space), . (Point), / (Slash), + (Plus)


Code 39 extension Valid Data Char Set:
  • All ASCII 128 characters

Property: addCheckSum Type: boolean
Default: false
addCheckSum property is optional for Code 39. Modulo 43 will be applied, if addCheckSum property is true.
 
Code 39
Special
Property: extension Type: boolean
Default: false
Code 39 is encoding upper case letters, if you want to encode lower case letters and other 128 ASCII characters, you need set extension property to true.
Property: I Type: float
Default: 1.0f
The space between 2 characters in code 39. This a multiple of X module (bar width).
Property: N Type: float
Default: 2.0f
Wide bar vs narrow bar ratio. Valid values are 2.0 - 3.0 inclusive, default is 2.0.
Property: showStarStopInText Type: boolean
Default: true
If true, print a * in the beginning and end of barcode text in Code 39 barcode
Property: processTilde Type: boolean
Default: false
Set the processTilde property to true, if you want use the tilde character "~" to specify special characters in the input data, such as non-printable chars in ASCII table.

  • 1-byte character: ~0dd/~1dd/~2dd (character value from 000 ~ 255);
    Strings from "~256" to "~299" are unused
 
Barcode
Size
Related
Property: autoResize Type: boolean
Default: false
Auto resize the generated barcode image
Property: barAlignment Type: int
Default: 1 (center)
Barcode horizontal alignment inside the image. 0: left, 1: center, 2: right.
Property: uom Type: int
Default: 0 (pixel)
Unit of meature for all size related settings in the library.
Valid values: 0: pixel; 1: inch; 2: cm.
Property: X Type: float
Default: 1
Width of barcode bar module (narrow bar), default is 1 pixel
Property: Y Type: float
Default: 30
Height of barcode bar module, default is 30 pixel
Property: barcodeWidth Type: float
Default: 0
Barcode image width.

If barcodeWidth setting is smaller than the barcode required minimum width, the library will automatically reset to barcode minimum width.
Property: barcodeHeight Type: float
Default: 0
Barcode image height.

If barcodeHeight setting is smaller than the barcode required minimum height, the library will automatically reset to barcode minimum height.
Property: leftMargin Type: float
Default: 0
Barcode image left margin size.
Property: rightMargin Type: float
Default: 0
Barcode image right margin size.
Property: topMargin Type: float
Default: 0
Barcode image top margin size.
Property: bottomMargin Type: float
Default: 0
Barcode image bottom margin size.
Property: resolution Type: int
Default: 72
Barcode image resolution in DPI (Dots per inch).
Property: rotate Type: int
Default: 0 (IBarcode.ROTATE_0)
Valid values:

  • 0 (IBarcode.ROTATE_0)
  • 1 (IBarcode.ROTATE_90)
  • 2 (IBarcode.ROTATE_180)
  • 3 (IBarcode.ROTATE_270)
 
Barcode
Colors
Property: backColor Type: AndroidColor
Default: AndroidColor.white
Barcode image background color
Property: foreColor Type: AndroidColor
Default: AndroidColor.black
Barcode image foreground color
 
Font
Style
Property: showText Type: boolean
Default: true
If true, display barcode data text under the barcode, otherwise do not display.
Property: textFont Type: AndroidFont
Default:
new AndroidFont("Arial", Typeface.NORMAL, 11)
Barcode text font style.
Property: textMargin Type: float
Default: 6
Space between barcode and barcode data text, default is 6 pixel
Property: textColor Type: AndroidColor
Default: AndroidColor.black
Barcode text color









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