android - Check if NFC tag is near -

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is possible force android check if nfc tag near? i'm able read tag when android detects it, force check if tag near @ specific moment

what want in general not possible. if can live dirty hack following work (thanks unspecified behaviour):

first disable reader-mode of supported tag types. brings nfc subsystem clean state, e.g. makes sure nfc controller have no connection tag.

once done restore reader-mode again. if tag present @ moment usual discovery action intent. may take second or 2 though.

control of reader-mode possible using nfcadapter.enablereadermode , nfcadapter.disablereadermode


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