CODEWITHSUNDEEP
androidnfc
David Novák
David Novák

Reputation: 1495

Recieve an NFC intents only when activity already started

I am trying to build an application that uses NFC. When user starts certain activity, he will be prompted to approach NFC tag to the reader.

I have red the documentation. I understand I have to create intent filter to receive intents whenever tag is approached.

The problem is I want my activity to receive intent only when it is is visible I don't want it to be started every time the tag is approached. For example app NFC tools works that way.

Upvotes: 0

Views: 649

Answers (2)

Squirrelkiller
Squirrelkiller

Reputation: 2804

Register your receiver in your onResume method, and unregister it in your onPause method, that way you only receiver the intents while your activity is active.

Upvotes: 0

Will Bobo
Will Bobo

Reputation: 424

You can do it by using the foreground dispatch system : http://developer.android.com/guide/topics/connectivity/nfc/advanced-nfc.html#foreground-dispatch

Also, remove your intent filter from your manifest, it will stop starting your app

Upvotes: 1

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