mercredi 11 février 2015

[Q] Editing Android Kernel - HCE/NFC topic






I'm currently in the process of creating a custom version of AOSP that will edit the functionality of the Host-Card Emulation feature of Android, allowing me to manually set the AID produced when my device goes into emulation mode.
I've downloaded the Android source, and have located the files I think governs HCE functionality.
From the NFC System Service, I've located the following files:
"CardEmulationManager.java" and "HostEmulationManager.java" located in "/aosp/packages/apps/Nfc/src/com/android/nfc/cardemulation/"
And from the Android core framework, for the NFC API I have found:
"CardEmulation.java" located at "/frameworks/base/core/java/android/nfc/cardemulation/CardEmulation.java"
From here, i'm unsure how to get started in editing the code. I'm unsure of the interactions between the files, and how they are called at run (I.e. which functions in the file I should be looking at, how would I go about adding my own code/modifying existing code in the file)
Is there any documentation online about how these files work/are ran? Or how would I go about finding out on my own (Through debugger tools etc.)
I'm currently using Eclipse for Ubuntu, and will be developing for a Nexus 7






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