š
Original date posted:2014-03-07
š Original message:2014-03-06 12:26 GMT+01:00 Andreas Schildbach <andreas at schildbach.de>:
> In current phone implementations, the screen must be on already for NFC
> to be active. Also it must be unlocked, although I certainly hope future
> OSes will allow payment apps on the lock screen, just like they allow
> music players.
Just a small input to this point:
On Android 4.4 the new host card emulation (HCE) feature (aka: the phone
emulates a ISO-DEP Smartcard and processes ISO7816-4 APDU commands like a
Smartcard would do) only works when the display is on, but even when the
screen is locked (can be changed with "android:requireDeviceUnlock" in
Manifest). See here for detailled specification:
http://developer.android.com/guide/topics/connectivity/nfc/hce.html
Using the HCE API on Android 4.4 also has the beauty that any app that
registers itself for HCE and sets its category to CATEGORY_PAYMENT in the
Manifest automatically shows up in Adroid's system settings under "Tap &
Pay" (where a user would expect payment applications).
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Johannes Zweng [ARCHIVE] /
npub18fā¦y739f
2023-06-07 15:14:50
in reply to nevent1qā¦xd7q
Author Public Key
npub18fpvcsep7mwe4zfg4nsaquey5q7u6r5c8y3928258grwarxmtuusay739fPublished at
2023-06-07 15:14:50Event JSON
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Original date posted:2014-03-07\nš Original message:2014-03-06 12:26 GMT+01:00 Andreas Schildbach \u003candreas at schildbach.de\u003e:\n\n\n\u003e In current phone implementations, the screen must be on already for NFC\n\u003e to be active. Also it must be unlocked, although I certainly hope future\n\u003e OSes will allow payment apps on the lock screen, just like they allow\n\u003e music players.\n\n\nJust a small input to this point:\nOn Android 4.4 the new host card emulation (HCE) feature (aka: the phone\nemulates a ISO-DEP Smartcard and processes ISO7816-4 APDU commands like a\nSmartcard would do) only works when the display is on, but even when the\nscreen is locked (can be changed with \"android:requireDeviceUnlock\" in\nManifest). See here for detailled specification:\nhttp://developer.android.com/guide/topics/connectivity/nfc/hce.html\n\nUsing the HCE API on Android 4.4 also has the beauty that any app that\nregisters itself for HCE and sets its category to CATEGORY_PAYMENT in the\nManifest automatically shows up in Adroid's system settings under \"Tap \u0026\nPay\" (where a user would expect payment applications).\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20140307/a4a84190/attachment.html\u003e",
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