I wasn’t really able to clarify the issue with metadataOutputRectOfInterestForRect, however, you can directly set the property as well. You need to the have the resolution in width and height of your video, which you can specify in advance. I quickly used the 640*480 setting. As stated in the documentation, these values have to be … Read more
I wrote a simple GPLv3 qr encoder in javascript that is local, uses HTML5 and is really fast as it is a port of an embedded C version I wrote for Atmel AVR processors. http://code.google.com/p/jsqrencode/downloads/list There is a live version (which is saveable as a webapp on iOS devices) at http://zdez.org/qrenc3.html (save to home, opens … Read more
try { Intent intent = new Intent(“com.google.zxing.client.android.SCAN”); intent.putExtra(“SCAN_MODE”, “QR_CODE_MODE”); // “PRODUCT_MODE for bar codes startActivityForResult(intent, 0); } catch (Exception e) { Uri marketUri = Uri.parse(“market://details?id=com.google.zxing.client.android”); Intent marketIntent = new Intent(Intent.ACTION_VIEW,marketUri); startActivity(marketIntent); } and in onActivityResult(): @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == 0) { if (resultCode … Read more
Basically your text information has to be identifiable for what it is: There is a very good summary here. Contact data – use MeCard, or vCard (much more verbose), e.g.: MECARD:Surname, First;ADR:123 Some St., Town, Zip Code, Country;EMAIL:some_name@some_ip.com;TEL:+11800123123;BDAY:19550231;; Gives: Calendar data – There are two formats about iCalendar (.ics) & vCalendar (.vcs). These formats can … Read more
It’s worth adding that, in addition to the QR codes library posted by @abaumg, Google provides a QR Codes API QR Codes APImany thanks to @Toukakoukan for the link update. To use this, basically: https://chart.googleapis.com/chart?chs=300×300&cht=qr&chl=http%3A%2F%2Fwww.google.com%2F&choe=UTF-8 300×300 is the size of the QR image you want to generate, the chl is the url-encoded string you want … Read more
You can try the following steps and code using qrtools: Create a qrcode file, if not already existing I used pyqrcode for doing this, which can be installed using pip install pyqrcode And then use the code: >>> import pyqrcode >>> qr = pyqrcode.create(“HORN O.K. PLEASE.”) >>> qr.png(“horn.png”, scale=6) Decode an existing qrcode file using … Read more
with zxing this is my code for create QR QRCodeWriter writer = new QRCodeWriter(); try { BitMatrix bitMatrix = writer.encode(content, BarcodeFormat.QR_CODE, 512, 512); int width = bitMatrix.getWidth(); int height = bitMatrix.getHeight(); Bitmap bmp = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565); for (int x = 0; x < width; x++) { for (int y = 0; y < height; … Read more
So, for future reference for anybody who doesn’t want to spend two days searching the internet to figure this out, when you encode byte arrays into QR Codes, you have to use the ISO-8859-1character set, not UTF-8.