Develop Bugs

[APP] 6/12 NFC Task Launcher 3.6.1

I am consolidating threads. Maintaining several threads was getting to be too much. Please move to the new thread here with any new questions or comments: http://forum.xda-developers.com/showthread.php?p=34417369
Market Link: https://market.android.com/details?id=com.jwsoft.nfcactionlauncher
Application Site: http://www.jwksoftware.com/
Screenshots: http://www.jwksoftware.com/screenshots
Where to get Tags?
http://www.jwksoftware.com/nfc-tags
Features:
NFC Task Launcher uses the NFC Hardware and RFID/NFC Tags to allow you to create tags several types of tags, including a custom "Task" tag that will automatically execute tasks when read. See Site for full feature list.
If you do use and enjoy the app it is up in the Market as a paid app. Any purchases / ratings are appreciated as I have put quite a few hours into this expanding it to fill requests for functionality.
Change log:
6/12 Version 3.6
- GPS (Root needed)
- Mobile Data (Root needed)
- Display Timeout
- Fixed Airplane mode bugs
- Precision timer
- New languages
- Cloud backup and restore
5/9 Version 3.4
- UI updates
- Added German, Spanish and Korean
- Removed Italian as it is out of date
- All tags now save to "Your Tags". Recent shows the 5 most recently used
- Changed Tag limiting to uniquely track switch tags
4/19 Version 3.3
3.3
- Added Google Places support in Latitude
- Added Navigate to address support
- Added Auto-rotation
- Added write lock option when writing
- Added size to vCards
- Added setting to pause after launching an app (for launching multiple apps or launching and then interacting)
- Added notification when tags save when hitting finish
- Updated Tasker integration (should fix issues with HTC One X)
- Enhanced debugging to make bug reports easier
- Fixed condition where tasks would stop executing when wifi changed
- Fixed reported crashes and typo
Full: http://www.jwksoftware.com/change-log
If you'd like to see some functionality added feel free to make a request.
The APK linked below is free of the license check of the Market version and is fully functional for 7 days.
http://goo.gl/xBBOU
For anyone who decides to purchase the app after using the APK attached to the thread - un-install the free version first otherwise the market installation may fail.
Here's a few videos I made for a current demo:
Tag Demos
Car Dock Demo

Awesome. I'm gonna have to research this. Off topic but how much do those tags cost?
My mind is racing with ideas.... oh no

player911 said:
Awesome. I'm gonna have to research this. Off topic but how much do those tags cost?
My mind is racing with ideas.... oh no
Click to expand...
Click to collapse
They are pretty reasonable. If you check out the site I compiled a list of shops that I've tested. Usually $1.15 - 1.50 a piece for Ultralight C or Classic 1K tags.

Question for you guys with the nfc tags what have you done with them I like the idea of swiping my phone over a credit card scanner but what can be created with your own tags
Sent from my SCH-I510 using xda premium

Can't wait to try this. Already ordered the starter pack from tagstand. Looks like an amazing app. Will definitely buy as soon as I get my phone = ]. Thanks for the hard work.

@krohnjw
Can these tags be pre-defined and written into the software?
Was just thinking, you could be onto a winner here.
Set your program to know whats tags are, so say put a tag for a store. When someone scans it with your app, it auto checks them in at whatever app they have installed

Evostance said:
@krohnjw
Can these tags be pre-defined and written into the software?
Was just thinking, you could be onto a winner here.
Set your program to know whats tags are, so say put a tag for a store. When someone scans it with your app, it auto checks them in at whatever app they have installed
Click to expand...
Click to collapse
The instruction set is encoded on the tag. Any user with the app that scans the tag will see the same actions performed. It makes no calls back to any server or outside service.
Sent from my Nexus S using xda premium

Ah ok, makes sense. How do you code the tag though?
Sent from my iPad 2 using Tapatalk

Evostance said:
Ah ok, makes sense. How do you code the tag though?
Sent from my iPad 2 using Tapatalk
Click to expand...
Click to collapse
It's fairly simple. I designed a basic syntax describing the actions to be taken and wrote a complementary parser for when the tags are read.

That's simply amazing. I knew the NFC would be a nice toy, but not that nice!
Does anyone know where to get some cheap tags in germany. Cheapest I found so far was ebay, but still around 2,50 EUR per tag (incl. shipping).

Atreus said:
That's simply amazing. I knew the NFC would be a nice toy, but not that nice!
Does anyone know where to get some cheap tags in germany. Cheapest I found so far was ebay, but still around 2,50 EUR per tag (incl. shipping).
Click to expand...
Click to collapse
Did you check http://www.tagage.net/tagage-shop/ ?

I purchased these nfc tags which the seller has confirmed that they are in working order and bought the application. However, the app says that the nfc type is not supported. What's up with that?

drdino said:
I purchased these nfc tags which the seller has confirmed that they are in working order and bought the application. However, the app says that the nfc type is not supported. What's up with that?
Click to expand...
Click to collapse
See the edited first post. Something in 4.0 changed and Mifare Ultralight, Ultralight C and Classic 1K tags are no longer reporting as NdefFormatable - so the functionality to format them TO NDEF is broken.
Essentially the NdefFormatable class verifies that the tag lists the tech before it will operate on them. As they no longer list that tech it refuses to do anything with them.
This affects all NFC Apps I've tried in the Market so far. If the tags are already formatted NDEF then they work without issue.
I've got a bug report open to see if I can get a response on this as well as a post on the dev group as it's not a listed change in the API changes anywhere from 3.0 up.
If you don't want to wait it out and want a refund let me know and I'll process it.

Its allright, seems like a decent app so I still want to explore the possibilities.

drdino said:
Its allright, seems like a decent app so I still want to explore the possibilities.
Click to expand...
Click to collapse
There are shops that sell the tags pre formatted with NDEF - those will work. Anything that comes blank though currently will not.
As a curiosity I sent an email to NXP as well to see if they have any more information. I'd like to get this sorted sooner rather than later so hang in there

Can this app be set to do something when moved away from an NFC tag?
So say you put it in car dock and a tag turns on BT. But when removed its turns off BT
Sent from my Galaxy Nexus using Tapatalk

Evostance said:
Can this app be set to do something when moved away from an NFC tag?
So say you put it in car dock and a tag turns on BT. But when removed its turns off BT
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
No, there's no intent raised when the tag is moved out of range, only when it is detected.
It is reported in the logcat, but to do that you'd need to constantly be reading the logs and scanning for that (which would involve a read logs permission).

For all Europeans: I contacted tagage and their tags are not pre-formatted by default, but if you send them an email, they'll format your tags first.

Atreus said:
For all Europeans: I contacted tagage and their tags are not pre-formatted by default, but if you send them an email, they'll format your tags first.
Click to expand...
Click to collapse
Most vendors don't pre-format their tags - so get in touch with them before/when your order for now to be sure.
Hopefully this is something that I can get an answer on, but I don't currently see a good workaround.

krohnjw said:
No, there's no intent raised when the tag is moved out of range, only when it is detected.
It is reported in the logcat, but to do that you'd need to constantly be reading the logs and scanning for that (which would involve a read logs permission).
Click to expand...
Click to collapse
Can you put implement it as an option on each tag? That way we could enable it for a car tag only and not another tag etc.
If that makes sense?
Sent from my Galaxy Nexus using Tapatalk

[APP] BT Tag Writer

BT Tag Writer is application that offers you way to add NFC pairing to your old Bluetooth speakers. NFC pairing allows you to pair, connect and disconnect the device just by tapping the NFC tag with your phone. This application is still under development and this thread can be used to request changes and new features for this application.
Market: https://market.android.com/details?id=fi.siika.bttagwriter
Video: http://www.youtube.com/watch?v=IbuLGsXIvKI
--- original first post ---
Hello everybody.
I have been now writing application for Android devices with NFC capabilities. It basically offers wizard interface for writing new NFC connectivity tags for your Bluetooth speaker(s)/headset(s)/etc. And software that will take care of the actual pairing/connecting, when you tap the tag with your phone. NFC pairing is something Nokia does with N9 and it's Bluetooth speakers, but it looks like Android still doesn't handle this well out-of-the-box. Also I still haven't found easy to use connectivity tag writers for any devices.
Sort demo of application in it's current state: Check youtube video kzoG5VM6VcU (can't have this as a proper link, as I only have less than 8 posts to this forum, sorry)
Before I release this software to market, I would like have some people testing it with their speakers and devices. I really hate alpha level software in market. If you have Galaxy Nexus, some sort of Bluetooth speaker(s)/headset(s) and hopefully some writable NFC tags, and you would like to help me to get this software tested: Please tell it here. I still have some small things to resolve before this is ready for closed testing. If you like to help me to get this tested please also tell what sort of Bluetooth device you have and what NFC tags you have available.
I will most likely release this software as free (gratis) and probably in open source (don't know the license yet). So I am not planning stealing your time and then making money out of it. Only thing I can offer to you is to add your name to application's thanks list.
Also if you know software that already does all this, please tell. If my software does not bring anything new, I have to redesign it little bit.
Thanks.

I'd like to test your app.
Got the same NFC-Chip like you (mi(d)fire or something like that I've bought for my old Nexus S) and a Nokia BH-504 Bluetooth Headset and for sure a Galaxy Nexus and a Galaxy S, too
Just tell me how I can help testing...

i would test as well buddy!

s60mike said:
I'd like to test your app.
Got the same NFC-Chip like you (mi(d)fire or something like that I've bought for my old Nexus S) and a Nokia BH-504 Bluetooth Headset and for sure a Galaxy Nexus and a Galaxy S, too
Just tell me how I can help testing...
Click to expand...
Click to collapse
For now this is ICS software, do you happen to have some unofficial 4.0 image in those? I kinda would like to make this 4.0 only software, as all NFC devices most likely will get that update.
S suxeN said:
i would test as well buddy!
Click to expand...
Click to collapse
Your phone is Nexus S? What sort of Bluetooth devices you have, and NFC tags...

I'd love to test this. I've been using NFC Task Launcher to do something similar but it doesn't currently support connecting to a specific device. I'm running ICS on a GSM Galaxy Nexus and have several A2DP speakers I could test with.

Northernmost said:
I'd love to test this. I've been using NFC Task Launcher to do something similar but it doesn't currently support connecting to a specific device. I'm running ICS on a GSM Galaxy Nexus and have several A2DP speakers I could test with.
Click to expand...
Click to collapse
I will fix few annoying things and then will put link to debug apk-file here (maybe Wednesday). I will try to see if I can make it run in 2.3.5+ too. Anyhow software will be limited to Mifare Ultralight tags (original and C versions). I have to buy other type tags to see what I can do with those, but that's later. Common Ndef writer classes does not work at all with Android or then I'm doing something wrong.
Android also really limits clean ways to do intents for more complex tags. So these tags software now writes are not proper connectivity handover tags. Just the core part of those is used and stored as single NDEF mime item and then this app is marked to handle those NDEF messages/records. Positive side with that is of course that information fits to smaller tags. Also PIN code storing will be probably done little hacky way to the first version.

alump said:
For now this is ICS software, do you happen to have some unofficial 4.0 image in those? I kinda would like to make this 4.0 only software, as all NFC devices most likely will get that update.
Your phone is Nexus S? What sort of Bluetooth devices you have, and NFC tags...
Click to expand...
Click to collapse
Like said above. Both devices got ICS and NFC and I've got Midfire NFC Tags...

s60mike said:
Like said above. Both devices got ICS and NFC and I've got Midfire NFC Tags...
Click to expand...
Click to collapse
So many different Mifare tags out there. Mifare Classics will not work (for now).
Anyway, pushed software to market after all. In few hours you should be able to find it from there. Offer still stays, if you can try it out and report issues here it would help. I had to drop headset support for now as it didn't work as well as I hoped.

Great! Will try it out today. Here's the market link https://market.android.com/details?id=fi.siika.bttagwriter
Sent from my Galaxy Nexus using Tapatalk

alump said:
Mifare Classics will not work (for now).
Click to expand...
Click to collapse
Missed that bit. I really must learn to read All the Mifare tags I have are Classic ones.
A couple of initial thoughts after myfirst use of the app...
1) Back when I was on 2.3.7 there was a Bluetooth A2DP widget I used (can't remember the exact name now) that, when you created the widget, would display a list of already paired devices that supported the A2DP profile. Once you'd picked one the widget would attempt to connect to it automatically.
I'd like to see your app do something similar rather than having to go through a pairing process with a device I've already paired with. It's a small thing to do I know, but I'd imagine most users will have already paired with their speakers before ever finding your app. I don't know if you can enumerate paired devices supporting the A2DP profile in ICS though.
2) When your app was scanning for BT devices it would find my speakers but would only display the BT address. It didn't display the BT device name after waiting for several seconds. This may be a BT stack problem though.
3) It looks very nice!

Northernmost said:
Missed that bit. I really must learn to read All the Mifare tags I have are Classic ones.
A couple of initial thoughts after myfirst use of the app...
1) ....I'd like to see your app do something similar rather than having to go through a pairing process with a device I've already paired with...
2) When your app was scanning for BT devices it would find my speakers but would only display the BT address. It didn't display the BT device name after waiting for several seconds. This may be a BT stack problem though.
Click to expand...
Click to collapse
1. Yes my app does not trust the already known devices list. Have to see if I can get that too. Anyway my application does not pair devices that have been paired already. It simply is stupid to not offer those. I have to check if I can used paired devices list too. I have to add some indicator to list what devices are then old known and what are just found with discovery.
2. I have seen "no name" issue only once. But yes, that's "stack problem"... I hope
Anyway I think I have to try to add Mifare Classic support first.

alump said:
1. Yes my app does not trust the already known devices list. Have to see if I can get that too. Anyway my application does not pair devices that have been paired already. It simply is stupid to not offer those. I have to check if I can used paired devices list too. I have to add some indicator to list what devices are then old known and what are just found with discovery.
Click to expand...
Click to collapse
Sorry for spam, but finally this will be mine 8th post
Request to list already paired devices is now added to Market version (0.3). So no need to turn already paired devices to pairing mode when writing tags.
Support for other than ultralight Mifare tags might take some time. Thanks to keys etc those tags are not ideal for this use. I think I will try to add headset support first.

Just to confirm that 0.3 is listing my paired A2DP devices

alump said:
Your phone is Nexus S? What sort of Bluetooth devices you have, and NFC tags...
Click to expand...
Click to collapse
Nexus S, running Brainmasters ICS 4.0.3
Bluetooth devices:
2 headsets
another Xperia ArcS
NFC Tag:
dont have a tag yet, but could get some. Dunno what kind they are!

S suxeN said:
NFC Tag:
dont have a tag yet, but could get some. Dunno what kind they are!
Click to expand...
Click to collapse
My unofficial NFC tag type list (from memory, might have mistakes)
Mifare Ultralight C is my recommendation. If you plan to use this for this, or for example: storing your contact information, storing some url, storing application starter information etc.... Simple, cheap and easy to use alternative.
Mifare Ultralight (non C) is too small for almost anything. You can use it anyhow with my software (limited features) and you can fit sort URL to it.
Mifare 1K, Classic, etc... these are for more secure needs. Or if you really want to store a lot more information to the tag. For non secure usage (e.g. my app) the secure features are just annoying extra that makes things more complex. Key based security so if you mess up with key, then you can't read or replace that data anymore. Also kinda "proprietary alternative".
Felicas are Sony's alternative for all these. Probably not easy to find outside Japan. Topaz is good alternative for Ultralights, but I don't know how well Android supports those currently (haven't tested). And if Broascom/Innovision still makes these? Not too easy to find anyway. And then there are many more... it's a total mess and maybe the main reason why it's so hard for NFC to break big time.
But for the most of use cases: I assume Mifare Ultralight C is the best alternative.
NFC Tag store examples:
TagAge - I'm using this, but mainly because I live in Finland.
NFCDog - is one UK alternative.
And many more, Google search is your friend. And this message has't been paid by either of these stores

alump said:
My unofficial NFC tag type list (from memory, might have mistakes)
Mifare Ultralight C is my recommendation. If you plan to use this for this, or for example: storing your contact information, storing some url, storing application starter information etc.... Simple, cheap and easy to use alternative.
Mifare Ultralight (non C) is too small for almost anything. You can use it anyhow with my software (limited features) and you can fit sort URL to it.
Mifare 1K, Classic, etc... these are for more secure needs. Or if you really want to store a lot more information to the tag. For non secure usage (e.g. my app) the secure features are just annoying extra that makes things more complex. Key based security so if you mess up with key, then you can't read or replace that data anymore. Also kinda "proprietary alternative".
Felicas are Sony's alternative for all these. Probably not easy to find outside Japan. Topaz is good alternative for Ultralights, but I don't know how well Android supports those currently (haven't tested). And if Broascom/Innovision still makes these? Not too easy to find anyway. And then there are many more... it's a total mess and maybe the main reason why it's so hard for NFC to break big time.
But for the most of use cases: I assume Mifare Ultralight C is the best alternative.
NFC Tag store examples:
TagAge - I'm using this, but mainly because I live in Finland.
NFCDog - is one UK alternative.
And many more, Google search is your friend. And this message has't been paid by either of these stores
Click to expand...
Click to collapse
Okay, ima gonna order some and report back to u

music auto start
is there a way to make it so that my music app doesn't auto play my most recently played track when the BT connection is made ... id like for it to simply open the app

Inventory Management with NFC

I am an IT consultant and would like to figure out a way to log systems as they are visited for maintenance with NFC tags. I figure what better way than to simply put NFC tags in\on the machines and simply tap phone or tablet to it to log it as serviced. So here are my questions
Is there any way to program the tags with specific ID's for each system?
Is there software that will track these things?
What apps would be best for this kind of use?

I would love to know about this as well .
I know that u can use a phone with a bluethooth serial code reader and manage inventory that way...but NFC is much better in my opinion
Sent from my SAMSUNG-SGH-I717 using xda app-developers app

Inventory
I did this with QR and Bar codes although a bit archaic i would also like to explore this option further
nerdslogic said:
I am an IT consultant and would like to figure out a way to log systems as they are visited for maintenance with NFC tags. I figure what better way than to simply put NFC tags in\on the machines and simply tap phone or tablet to it to log it as serviced. So here are my questions
Is there any way to program the tags with specific ID's for each system?
Is there software that will track these things?
What apps would be best for this kind of use?
Click to expand...
Click to collapse

rixking said:
I did this with QR and Bar codes although a bit archaic i would also like to explore this option further
Click to expand...
Click to collapse
I'm no IT or inventory expert, but going along with your idea of QR codes, I did notice that the NXP TagWriter app has an option to convert QR codes into an NFC data set and store it on an NFC item. With that in mind, you could take your existing QR codes, scan and convert them into NFC tags. I'm not sure if scanning the tag would bring
I think another potential option is to store the barcode number as plain text, which can also be done within the NXP TagWriter app.
Note, you'll have to enable professional mode from the preferences before the QR and plain text options will appear.

nerdslogic said:
I am an IT consultant and would like to figure out a way to log systems as they are visited for maintenance with NFC tags. I figure what better way than to simply put NFC tags in\on the machines and simply tap phone or tablet to it to log it as serviced. So here are my questions
Is there any way to program the tags with specific ID's for each system?
Is there software that will track these things?
What apps would be best for this kind of use?
Click to expand...
Click to collapse
i'm off the IT line for a long time already, php was the last thing i did. But some simple ideas pop-up. since its not out there, than built it sort of thing.
Is there any way to program the tags with specific ID's for each system?
yas, just use tagwriter and write tags with http address and an id at the end.
Is there software that will track these things?
local web server to catch input, ruby or php are simple enough. since you must have already registers an id for a tag for the job.
tags that have a web address and an id will be enough to do tracking. reports are printed from a computer anyway.
What apps would be best for this kind of use?
stock browser.
can do same thing with QR code.

Write NFC tags that do not require other users to have the app used to write the tag.

I have a done a bit of looking but all I've come up with is mainly 'use trigger' or something like it. But my question is: Is there a way with Trigger to write a tag that anyone can read? Or is there another NFC tag writer app that I should use?
The thing I want to do is make a tag for friends to tap when they call over that will connect them to my wifi network, but if they have to go and download trigger first then no one is going to use my tag.
Sorry if this is a re-posted question, I looked and didn't see it anywhere here and when I put the title in there was no recommended threads that had what I was asking.

I've tried different apps, and it looks like connect to wireless is not one of the default actions that is included in Android. I've only found connect to bluetooth.

Hi, you can use NFC Tools for that.
All records on "write" tab is compatible with other NFC device.

daniel_loft said:
I've tried different apps, and it looks like connect to wireless is not one of the default actions that is included in Android. I've only found connect to bluetooth.
Click to expand...
Click to collapse
I am new to NFC and I am a little confused about what NFC can do. I have the nfc-tool App and I can read many NFC tags that I have.
But for an Android phone with NFC support, without installing any 3rd party App, what can it do? Is NFC enabled by default? Are there native NFC apps that can trigger action, open URL, etc?
Also, since each NFC tag already has a unique identifier, it seems to me writing data to NFC tag isn't all that useful when only 1 phone is using it. As you could have just programmed the command to the phone. The same applies to multiple phones if you can program the phones through some other means. Am I missing something here?

As I was saying, looks like what you want is only possible in Android L.
Have a nice day!

nookin said:
I am new to NFC and I am a little confused about what NFC can do. I have the nfc-tool App and I can read many NFC tags that I have.
But for an Android phone with NFC support, without installing any 3rd party App, what can it do? Is NFC enabled by default? Are there native NFC apps that can trigger action, open URL, etc?
Click to expand...
Click to collapse
Android has native build-in support for some simple standard NFC activities, like reading a messages/contact, open URL/URI, launch application etc. .For more sophisticated activities you will always need an app to parse the tag content and handle the activities.
Also, since each NFC tag already has a unique identifier, it seems to me writing data to NFC tag isn't all that useful when only 1 phone is using it. As you could have just programmed the command to the phone. The same applies to multiple phones if you can program the phones through some other means. Am I missing something here?
Click to expand...
Click to collapse
yep, fully agree. Have a look at NFC ReTag

ascsa said:
Android has native build-in support for some simple standard NFC activities, like reading a messages/contact, open URL/URI, launch application etc.
Click to expand...
Click to collapse
I'm a newbie here. I have a phone running 4.2.2. How do I make it read an NFC tag and take action without installing additional app? Just tap?

So I finally found an official NFC tag in mall. When I place my phone on it, it asks me to choose between stock Browser and Chrome. I guess if I have already chosen a default, it will just open a webpage. Now I wonder if there are security concerns. What if the URL is malicious? What if it downloaded a lot of data when the user is roaming?
I wonder what other functions an NFC tag can trigger without installing additional Apps? If I buy writable NFC tags, like the Samsung TecTiles, can it be programmed just like the mall NFC tag?

[Read Before Posting] NFC, Mifare, Android and FAQs

Please take a moment to read through this before posting, not only is a brief description of NFC and some of its uses included but also you will find a few of the more commonly asked questions. Over time these will be added to accommodate new or recurring queries that are being seen in this thread. If you have come to the thread to ask about emulating, copying or bypassing your Mifare card head down to the FAQs below .
What Is NFC
Near Field Communication (NFC) is a technology that was built upon Radio Frequency Identification (RFID). It allows for the storage of data without the need for a direct power supply. When a reader such as a NFC enabled phone comes within range (usually an inch or less) data can be read/written from/to the tag.
Objects containing NFC can be found in two varieties, active or passive. Passive devices are ones that contains data but do not read and generally will not have their own power supply. These are found in NFC tags such as those in Credit/Debit cards, Student or ID cards, Library books and passports among many. For a much larger of scannable objects see here. Their are also active devices, these can read information stored on other NFC devices and for the majority of us here these will be our phones. These active devices can also usually alter the data found on tags or transmit/exchange data with other active devices.
Uses for NFC
NFC has many uses both commercial and on a development/hobby level, here are just a few:
Contactless payment
Transfer of data from phone to phone
Share and log on to WI-FI
Sharing contact information
Automating tasks
Storing bitcoin wallets
Disabling alarms
Send Wake-On-Lan commands
FAQs
How can I emulate, copy, edit or bypass my Mifare card (student ID, work ID, Bus pass etc)?
The short answer: you can't
The long answer: There are numerous reasons why you may have had issues finding this information on XDA. Primarily because it is not possible from the vast majority of phones and for good reason. Mifare as mentioned above is a security layer for NFC cards and therefore the process isn't as simple as just downloading an app, scanning a security card and then forgetting about it. Secondly depending on the type of tag you are trying to use this is either A) illegal or B) against your companies, service provider, school's security policy and as such you will not find this information on XDA.
Your options from here are: look elsewhere for this information, just use your card as instructed or speak to your IT department about adding another form of NFC tag to the system, I for instance have an NFC tag implanted in my hand which my IT department was more than happy to add to my user profile at university. More information on this can be found here.
Click to expand...
Click to collapse
How can I hack my Bus pass, Oyster card etc to add more credit or extend its expiration date?
See the answer above ^
Click to expand...
Click to collapse
How can I unlock my Android phone using NFC
See "NFC LockscreenOffEnabler" for Xposed
Click to expand...
Click to collapse
How can I make Android trigger an event when I scan an NFC tag?
For simple commands you can use apps such as NFC Tools or Trigger.
For more complicated tasks a combination of Tasker and Locale can be used to launch just about any chain of events upon finding a specific tag. Of course alternatives do exist, so be sure to check out a few of the other projects around the site
Click to expand...
Click to collapse