It's not easy to determine if this
is possible, so instead apps should
attempt a format and handle errors
in the format request.
Change-Id: I078a208b849e71ef3fb6b5970a9111ece4a2d201
- It's useful to have accessors at block level, so apps don't really have to know
about the sector structure (and how many blocks there are in a sector).
- There's no way to tell whether a read/write/ didn't work because of auth
failure. The documentation should be changed to make this point clear.
- Added increment/decrement commands, for atomic increment/decrement of value blocks.
Change-Id: I590feacbcd1443f1be7a86ab046a5b1f33e2e04c
- The NfcService now allows for connecting to a specific technology;
- The "active" parts of technology classes may not be used at the same time.
Change-Id: Ibb569f51cc6da4f3e24df9d0850c6f49a022b0c2
- Added getNdefCached() to return the message read at discovery time.
- Fixed format() to check ndef before doing the write:
libnfc actually requires a checkNdef to be done before writing.
Change-Id: I9b3108299c05539bdef92dd74f62f911fb5a16bf
This gives NFC service a handle to the application context.
Deprecate NfcAdapter.getDefaultAdapter(), it does not provide a context.
Using this method will print a warning, and will later throw an exception
if a method that requires a context is called. No 2.3 API's will fail, but
new API's that do require a context might fail.
Also add helper NfcAdapter.getDefaultAdapter(Context).
Change-Id: I9a6378de4ef4b61ad922f8d53e64e2a1a1d5d60c
Also added an extra to carry the ndef message, so we can have it in multiple
Ndef instances without doing an active read.
Change-Id: I2ecabc24732990c5c9979ee3a001a7fb13da21d9
- GetTechnology() used a binary search, but the array was linked to another
array (extras) which was not sorted. So made it linear.
- The tag technologies were instantiated with a null NfcAdapter.
Change-Id: Iae15169a89155c3a5c9f81824f809d6010ebac01
The implementation was guarenteed to cause deadlock when a timeout was set.
Change-Id: I59444ea784eb9057c6c4c9e9123f558b3ef5eef6
Signed-off-by: Nick Pelly <npelly@google.com>
We are leaving enough API so that you can see when any Tag is discovered,
get its ID, and get its NDEF messages.
But for advanced use - creating tag connections and writing messages - we have
2 problems. Firstly a lot of the code is untested
(RawTagConnection.transceive()), or in some cases known not to work
(NdefTagConnection.write()). Secondly, there is still debate about how to
best expose information about Tags.
The set of data/methods exposed for a Tag changes completely depending on the
tag technology. There may be multiple sets of technology implemented in a
single tag. Tag A may have technology X and Y, Tag B may have technology Y
and Z. Furthermore, some NFC controllers will be not be able to use all
technologies, and so Android Device 1 may see technology X and Y on Tag A but
Android device 2 may only see technology X. So we have a pretty challenging
set of constraints to work under, and we are not convinced the current Tag and
NdefTag class is the best approach going forwards.
The Tag application should be able to remain unbundled, since it just needs to
get incoming NDEF Messages.
Change-Id: Ic09f094f33794e10f8d730fffe011c9a5957e0ac
Signed-off-by: Nick Pelly <npelly@google.com>
Retrieve the service again from ServiceManager on RemoteException.
Change-Id: Ie227b52019e7deafeab712af1addd6d957f7a8ee
Signed-off-by: Nick Pelly <npelly@google.com>
Also removed call to obsolete openTagConnection() method which was crashing.
Change-Id: Iffd46bd5cad877bb3a82ede298e65ae98322dca9
Signed-off-by: Nick Pelly <npelly@google.com>
Tag/NdefTag objects should just be simple data objects. Push the mapping of
internal tag type to public rawTarget/ndefTarget into Nfc Service.
This gives an oppurtunity to clean up some Tag/NdefTag API methods. Most
significantly, adding createMockTag() and createMockNdefTag() to help with
application testing.
There will probably be some more tweaking of the types/targets in
Tag/NdefTag to come, this commit makes that a lot easier.
Also:
- Introduce getActivationBytes() and getPollBytes(). These are just stubs
for NFC service to implement, we have feedback these are really important
to help identify NFC tags.
- Based on outside advice, remove 3B_PRIME (roll into 3B) and TOPAZ (roll
into 3A).
Change-Id: I3e6789c047f6ee5c298bf76c65e0885cf3c15d97
Signed-off-by: Nick Pelly <npelly@google.com>
RawTagConnection.isConnected() method.
Also needs packages/apps/Nfc to be updated.
Change-Id: I726e88853e2c4b348f3b87b7574bc6eded7f5b7c
Signed-off-by: Nick Pelly <npelly@google.com>
