How to get the unique nfc id of a phone, without reading nfc on android? [duplicate]
This question already has an answer here:
How to check my NFC TAG ID (UID)?
1 answer
I know How to get Nfc Unique ID, When NFC Reader,
private Tag tag;
//Read success.
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
byte id = tag.getId();
}
but I want Even if I do not read the NFC card.
How to get NFC id, without reading nfc on android?
thanks.
android nfc asked Nov 26 '18 at 0:19
hyunwookchohyunwookcho
57110
marked as duplicate by Michael Roland android
Users with the android badge can single-handedly close 
android questions as duplicates and reopen them as needed.
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Dec 3 '18 at 16:08
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
add a comment |
This question already has an answer here:
How to check my NFC TAG ID (UID)?
1 answer
I know How to get Nfc Unique ID, When NFC Reader,
private Tag tag;
//Read success.
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
byte id = tag.getId();
}
but I want Even if I do not read the NFC card.
How to get NFC id, without reading nfc on android?
thanks.
android nfc asked Nov 26 '18 at 0:19
hyunwookchohyunwookcho
57110
marked as duplicate by Michael Roland android
Users with the android badge can single-handedly close android questions as duplicates and reopen them as needed.
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$hover.showInfoMessage('', {
messageElement: $msg.clone().show(),
transient: false,
position: { my: 'bottom left', at: 'top center', offsetTop: -7 },
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Dec 3 '18 at 16:08
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
What ID do you expect to get? The UID of the phone when it acts as a contactless card?
– Michael Roland
Nov 29 '18 at 16:00
If yes, then this is a duplicate of stackoverflow.com/q/25195762/2425802
– Michael Roland
Nov 29 '18 at 16:03
Also see stackoverflow.com/q/27239473/2425802 and stackoverflow.com/q/19764476/2425802
– Michael Roland
Nov 29 '18 at 16:04
add a comment |
This question already has an answer here:
How to check my NFC TAG ID (UID)?
1 answer
I know How to get Nfc Unique ID, When NFC Reader,
private Tag tag;
//Read success.
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
byte id = tag.getId();
}
but I want Even if I do not read the NFC card.
How to get NFC id, without reading nfc on android?
thanks.
android nfc asked Nov 26 '18 at 0:19
hyunwookchohyunwookcho
57110
This question already has an answer here:
How to check my NFC TAG ID (UID)?
1 answer
I know How to get Nfc Unique ID, When NFC Reader,
private Tag tag;
//Read success.
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
byte id = tag.getId();
}
but I want Even if I do not read the NFC card.
How to get NFC id, without reading nfc on android?
thanks.
This question already has an answer here:
How to check my NFC TAG ID (UID)?
1 answer
android nfc android nfc asked Nov 26 '18 at 0:19
hyunwookchohyunwookcho
57110
asked Nov 26 '18 at 0:19
hyunwookchohyunwookcho
57110
asked Nov 26 '18 at 0:19
hyunwookchohyunwookcho
57110
asked Nov 26 '18 at 0:19
hyunwookchohyunwookcho
57110
asked Nov 26 '18 at 0:19
hyunwookchohyunwookcho
57110
57110
marked as duplicate by Michael Roland android
Users with the android badge can single-handedly close android questions as duplicates and reopen them as needed.
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Dec 3 '18 at 16:08
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
marked as duplicate by Michael Roland android
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$hover.showInfoMessage('', {
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Dec 3 '18 at 16:08
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
What ID do you expect to get? The UID of the phone when it acts as a contactless card?
– Michael Roland
Nov 29 '18 at 16:00
If yes, then this is a duplicate of stackoverflow.com/q/25195762/2425802
– Michael Roland
Nov 29 '18 at 16:03
Also see stackoverflow.com/q/27239473/2425802 and stackoverflow.com/q/19764476/2425802
– Michael Roland
Nov 29 '18 at 16:04
add a comment |
What ID do you expect to get? The UID of the phone when it acts as a contactless card?
– Michael Roland
Nov 29 '18 at 16:00
If yes, then this is a duplicate of stackoverflow.com/q/25195762/2425802
– Michael Roland
Nov 29 '18 at 16:03
Also see stackoverflow.com/q/27239473/2425802 and stackoverflow.com/q/19764476/2425802
– Michael Roland
Nov 29 '18 at 16:04
What ID do you expect to get? The UID of the phone when it acts as a contactless card?
– Michael Roland
Nov 29 '18 at 16:00
What ID do you expect to get? The UID of the phone when it acts as a contactless card?
– Michael Roland
Nov 29 '18 at 16:00
If yes, then this is a duplicate of stackoverflow.com/q/25195762/2425802
– Michael Roland
Nov 29 '18 at 16:03
If yes, then this is a duplicate of stackoverflow.com/q/25195762/2425802
– Michael Roland
Nov 29 '18 at 16:03
Also see stackoverflow.com/q/27239473/2425802 and stackoverflow.com/q/19764476/2425802
– Michael Roland
Nov 29 '18 at 16:04
Also see stackoverflow.com/q/27239473/2425802 and stackoverflow.com/q/19764476/2425802
– Michael Roland
Nov 29 '18 at 16:04
add a comment |
1 Answer
1
active
oldest
votes
Mobile phones acting as a tag (card emulation) do have a random UID (4 byte). It is not supported to adjust a specific UID.
As result every time the external field is turned off and on again the mobile phone as a different UID.
Best regards,
answered Nov 26 '18 at 12:29
AlexAlex
261
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Mobile phones acting as a tag (card emulation) do have a random UID (4 byte). It is not supported to adjust a specific UID.
As result every time the external field is turned off and on again the mobile phone as a different UID.
Best regards,
answered Nov 26 '18 at 12:29
AlexAlex
261
add a comment |
Mobile phones acting as a tag (card emulation) do have a random UID (4 byte). It is not supported to adjust a specific UID.
As result every time the external field is turned off and on again the mobile phone as a different UID.
Best regards,
answered Nov 26 '18 at 12:29
AlexAlex
261
add a comment |
Mobile phones acting as a tag (card emulation) do have a random UID (4 byte). It is not supported to adjust a specific UID.
As result every time the external field is turned off and on again the mobile phone as a different UID.
Best regards,
answered Nov 26 '18 at 12:29
AlexAlex
261
Mobile phones acting as a tag (card emulation) do have a random UID (4 byte). It is not supported to adjust a specific UID.
As result every time the external field is turned off and on again the mobile phone as a different UID.
Best regards,
answered Nov 26 '18 at 12:29
AlexAlex
261
answered Nov 26 '18 at 12:29
AlexAlex
261
answered Nov 26 '18 at 12:29
AlexAlex
261
answered Nov 26 '18 at 12:29
AlexAlex
261
261
add a comment |
add a comment |
What ID do you expect to get? The UID of the phone when it acts as a contactless card?
– Michael Roland
Nov 29 '18 at 16:00
If yes, then this is a duplicate of stackoverflow.com/q/25195762/2425802
– Michael Roland
Nov 29 '18 at 16:03
Also see stackoverflow.com/q/27239473/2425802 and stackoverflow.com/q/19764476/2425802
– Michael Roland
Nov 29 '18 at 16:04