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Hi Nathan,
I will need to ask you a few questions to get this sorted.
What tag are you working with exactly? This is only currently supported with Type 4 tags and Mifare Ultralight.
In terms of how it’s done, is currently being improved upon to make it easier for developers. But assuming you have the latest release, you need to store the FmDevice from the delegate method ‘didUpdateConnectedDevices’. You then need to present a tag, and then finally sent ‘[device getDataBlocks]’ to read data blocks from this device.
This will provide you with an object called a ‘NdefMessage’ in the ‘didFindADataBlockWithNdef’ delegate method which will have your URL stored.
NOTE: At the next release (which should be next week), you will be able to immediately see your url immediately upon tapping a tag, and it will a LOT easier to configure. 🙂
NOTE: This is for FlomioSDKv2.0
For instructions for FlomioSDKv2.1 (beta) see my next post in this thread.@implementation ViewController { FmDevice *device; } - (void)didUpdateConnectedDevices:(NSArray *)connectedDevices { device = connectedDevices[0]; //this needs to be stored for future use } //Next present a tag, and use the method [device getDataBlocks]; to read the URL from the tag - (void)didFindADataBlockWithNdef:(NdefMessage *)ndef fromDevice:(NSString *)device withError:(NSError *)error{ dispatch_async(dispatch_get_main_queue(), ^{ //Use the main queue if the UI must be updated with the tag UUID or the deviceId //Your URL will be here in the NDEF Object NSURL *url = nil; for (NdefRecord *record in ndef.ndefRecords){ if (record.url){ url = record.url; } } }); }Ok thanks for the info about your tags. I do not have any NXP NTAG213 at the moment, I will add these to the pipeline and will begin adding support for NDEF on that tag type when the shipment arrives.
Flomio SDK v2.1 (beta)
Here is a 2.1 (beta) for you to try. Please read the README to open URLs from NDEF tags. Here is a brief tutorial on how to open URLs from Mifare Ultralight NDEF tags using your FloBLE Plus.//Store the device from this delegate method - (void)didUpdateConnectedDevices:(NSArray *)connectedDevices { //The list of connected devices was updated self.device = connectedDevices[0]; //store whichever device you need, but first you need to declare @property //(nonatomic, strong) FmDevice *device in your UIViewController's header file. } //change the reader state of the device in question. Call this method within your //application. Do not call this within didUpdateConnectedDevices [self.device setReaderState:kReadData]; //kReadUUID is the state to return to read UUID // Now, next time a NDEF tag is presented, it will read the data and trigger the // didFindADataBlockWithNdef delegate method. // The tag must have NDEF data for this to work //To get a url from a NDEF messsage //This is only supported for FloBLE Plus with Mifare Ultralight and NFC Forum Type //4 tags - (void)didFindADataBlockWithNdef:(NdefMessage *)ndef fromDevice:(NSString *)device withError:(NSError *)error{ dispatch_async(dispatch_get_main_queue(), ^{ // Second dispatch message to log tag and restore screen NSURL *url = nil; for (NdefRecord *record in ndef.ndefRecords){ if (record.url){ [[UIApplication sharedApplication] openURL:record.url]; } } }); }Hi Nathan,
I have added the ability to open the URL externally using Safari in the instructions above. If you would like to open a URL within your app, there are many tutorials online to use a UIWebView. For example: this Link
I hope this helps.
Kindest Regards,
Scott
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