[Solved]Android App error with nrf8001

[Nishant Sood]

When I first switch on the circutry that initialises the nrf8001 and sets it up for communication and then connect the android app with it ,the connection is done successfully ,it even shows RSSI but then in 1 or 2 seconds the Android app crashes unexpectedly and the error on the Android side is as follows:

Permission Denial: this requires android.permission.INTERACT_ACROSS_USERS_FULL

heres the complete link to the android problem>> stackoverflow.com/questions/20578474/permission-denial-this-requires-android-permission-interact-across-users-full

BUT when it crashes and again I restart the android app (not restarting the nrf8001) it connects all fine and works !,why?

[Nishant Sood]

Anyone?

[Hung Bui]

Hi Nishant,

I am sorry for a late response.

As you may find about the android.permission.INTERACT_ACROSS_USERS_FULL, it's something to do with the system signature. I haven't experienced this issue myself. But have you tried with our example apps that you can download from our website ? Also please let us know about your central device you used, which Android version was that ?

We suspect that you access something that require system service permission.

[Nishant Sood]

Can I show you my app, because I dont think Im calling for anything that beyond permissons! also the crashing of the app happens on the very first connection of with nrf8001 when the nrf8001 boots for the first afet which when I connect the app dies and then after than any connections to the app to and fro are all fine!

[Hung Bui]

Nishant, have you tested with our reference app, such as the nRFToolbox or the nRF Master Control Panel ?

[Hung Bui]

@Nishant: Please let me know your Android device name and the Android version on the device.

On my test here, I had no issue using your app to connect to a 8001 (running HRM) and see the RSSI value updated. Devices tested : Galaxy S4(Android 4.3), Nexus 7 (Android 4.4.2)