NFCReader | Scan and decode NFC tags on iOS | iOS library
kandi X-RAY | NFCReader Summary
kandi X-RAY | NFCReader Summary
Scan and decode NFC tags on iOS
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of NFCReader
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NFCReader Examples and Code Snippets
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QUESTION
I have a Swift application that reads from an NFC card. I want it to show the data it read on the screen, which I am able to do if I have a button that checks for updated data using the getDetected()
function. I want to, however, update the view when it is done reading the NFC tag so I can immediately display the data. How can I do this?
NFC Reader class:
...ANSWER
Answered 2022-Jan-30 at 02:49you could try the following approach, using a ObservableObject
.
Whenever the @Published var detected
is changed, the UI will be updated.
QUESTION
I'm building a NFC reading app. I want all my NFC implementation to be inside a separate class called NFCReader, so I can call it every time the user taps the readNFC button in my MainVC. Here is my current MainVC code:
...ANSWER
Answered 2021-Aug-05 at 19:22Your NFCReader
is being initialized, and then almost immediately deinitialized because you didn’t store any references to it (which is necessary to keep the object alive).
You can confirm this by putting a breakpoint in the deinit
of your NFCReader
class
QUESTION
I'm working on a project that needs NFC reader, Everything work perfect but I have a little issue.I have a method called Watch
, This method triggered when card Read by NFC reader and when card ejected.
I call this method on Form load, So when the card on the NFC reader I can do Action automatically, But this method working even when I close the form that loaded the method and it will trigger even when I'm trying to write on the card and do the action That is supposed to do in the other form.
So how can I cancel the event for the method watch
method when I want??
This is the Method watch
:
ANSWER
Answered 2020-Jun-24 at 02:42When you are finished with an event handler, you can unhook it with a -=
this._worker.DoWork -= WaitChangeStatus;
If your implemenation is really async, you can unhook the event handler in the event handler itself, and then only hook it back up if you need it again.
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