Owned scan screen in ZBar

By studying the ZBar iPhone SDK document, I need to preview the camera on my own UIView, then, show the scanned image and text, that's all. All I need is to use ZBarReaderView and ZBarImageScanner, the mainly code snippet as below:

	- (void) init_camera
	{
	ZBarReaderView * reader = [ZBarReaderView new];
	ZBarImageScanner * scanner = [ZBarImageScanner new];
	[scanner setSymbology:ZBAR_PARTIAL config:0 to:0];
	[reader initWithImageScanner:scanner];
	[scanner release];
	reader.readerDelegate = self;
	const float h = [UIScreen mainScreen].bounds.size.height;
	const float w = [UIScreen mainScreen].bounds.size.width;
	const float h_padding = w / 10.0;
	const float v_padding = h / 10.0;
	CGRect reader_rect = CGRectMake(h_padding, v_padding,
	w - h_padding * 2.0, h / 3.0);
	reader.frame = reader_rect;
	reader.backgroundColor = [UIColor redColor];
	[reader start];
	[self.view addSubview: reader];
	[reader release];
	}

view raw gistfile1.m hosted with ❤ by GitHub

The screen result like below:

Check out the full sample from github.