I found a tutorial on how to scan a barcode. But in my application I have to scan a QR code. How can I a scan QR code in Android?
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Answer
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 == RESULT_OK) { String contents = data.getStringExtra("SCAN_RESULT"); } if(resultCode == RESULT_CANCELLED){ //handle cancel } } }