How can I create mock tags to test with NFC?

How can do i create ndef messages in byte form? I've read somewhere it need to have a spec开发者_运维问答ial start/end byte, is it true?

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I have released an NFC Eclipse plugin for composing NDEF messages of various sorts, you might find it useful. It will produce binary NDEF files.

Doing the same programmatically, have a look at NFC Tools tools or (another project of mine) NDEF Tools for Android.

If you're not able to mock the Tags directly (i.e. using mockito), you can use a (another project of mine) wrapper and either mock the wrapper object directly or manipulate the service it connects to.

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Not sure why you need the message in bytes, but once you created a NdefMessage you can call the toByteArray() method to return a byte array. Same is true for NdefRecord.