StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
primarykey
Id
19527681
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2013-10-22T20:28:56.043
FavoriteCount
0
LastActivityDate
2013-10-22T20:28:56.043
LastEditDate
LastEditorUserId
0
OwnerUserId
1442571
ParentId
11067723
PostTypeId
2
Score
4
ViewCount
0
LastEditorDisplayName
text
Body
In one of my apps I needed to encode and decode a bytes array in a QRCode generated with the ZXing app. As the byte array contained compressed text data I wanted to avoid base64 encoding. It is possible to do this but as I have so far not seen a complete set of code snippets I will post them here. Encoding: <pre><code>public void showQRCode(Activity activity, byte[] data){ Intent intent = new Intent("com.google.zxing.client.android.ENCODE"); intent.putExtra("ENCODE_TYPE", "TEXT_TYPE"); intent.putExtra("ENCODE_SHOW_CONTENTS", false); intent.putExtra("ENCODE_DATA", new String(data, "ISO-8859-1")); activity.startActivity(intent); } </code></pre> Start scanning: <pre><code>public static void startQRCodeScan(Activity activity){ Intent intent = new Intent(com.google.zxing.client.android.SCAN); intent.putExtra("SCAN_MODE", "QR_CODE_MODE"); intent.putExtra("CHARACTER_SET", "ISO-8859-1"); activity.startActivityForResult(intent, 0); } </code></pre> Scan result handler: <pre><code>public void onActivityResult(int requestCode, int resultCode, Intent intent) { byte[] result = intent.getStringExtra("SCAN_RESULT").getBytes("ISO-8859-1"); ... } </code></pre> I think not setting CHARACTER_SET to ISO-8859-1 in the intent data for starting the scan is the point that made the code of the original question fail. It took me quite some time to dig this out as I have not seen this clearly posted anywhere and Latin 1 encoding is the standard encoding for QR code in Xzing. Especially tricky is the fact that the Xzing online decoder <a href="http://zxing.org/w/decode.jspx" rel="nofollow">http://zxing.org/w/decode.jspx</a> does not set CHARACTER_SET as well so that the generated QR code looks faulty when decoded on this site.
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POEncoding and decoding byte[] with ZXing
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USNantoka
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId
1. This table or related slice is empty.

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.