Zbar barcode QR code scanning control developed for iOS (91)

When we develop IOS applications, especially e-commerce applications, we often encounter bar code scanning business needs. Fortunately, we already have open-source sdks for us-bar code sdks for iOS, the following describes how to use this open-source SDK:

 

Free bar code is zbar, is: http://zbar.sourceforge.net

The specific implementation process is as follows:

Step 1: Download The zbar SDK.

Step 2: Create a project

Step 3: add the downloaded zbarsdk to the project.

Step 4: Add. Framework to the project.

 

Fifth, add the header file referenced by the Library

Sixth, add a button to control the scan function.

 

Code implementation:

1) Add the zbarreaderdelegate protocol to the. h file.

2) In the. m implementation file, implement the following code:

// Enable scanning and call the iPhone camera

 

-(Ibaction) scanbuttontapped

{

Zbarreaderviewcontroller * reader = [zbarreaderviewcontroller new];

Reader. readerdelegate = self;

Zbarimageworkflow * reader. Category = reader. category;

 

[Export setsymbology: zbar_i25

Config: zbar_assist_enable

To: 0];

 

[Self presentmodalviewcontroller: reader animated: Yes];

[READER release];

}

 

 

// Proxy method

 

-(Void) imagepickercontroller: (uiimagepickercontroller *) Reader

Didfinishpickingmediawithinfo: (nsdictionary *) info

{

 

Nslog (@ "info = % @", Info );

// Obtain the bar code result

ID <nsfastenumeration> Results =

[Info objectforkey: zbarreadercontrollerresults];

Zbarsymbol * symbol = nil;

For (symbol in results)

// Example: Just grab the first barcode

Break;

 

// Display the obtained barcode to our interface

Resulttext. Text = symbol. Data;

 

// The scanned image is displayed on our interface.

Resultimage. Image =

[Info objectforkey: uiimagepickercontrolleroriginalimage];

 

// Exit the scan interface

[READER dismissmodalviewcontrolleranimated: Yes];

}

 

 

Effect: