Android Question Red Border On App

This border is only visible if you enabled it in the device developers options.

Not in this case. I have a couple of phones none of which have the Developer options activated and it happens on each one. Not so much the Galaxy Note 2 but certainly on the HTC running Android I.C.S. In fact a client also reported this red border appearing on each change of activity on his Galaxy S4. I got him to reboot his phone and the red border went away.

The red border is an indicator for developers that an operation slows down the main thread. It should only appear when this option is enabled in the developers settings.

Maybe the settings were enabled (or treated as enabled) on that device for some reason.

Yes but what about my devices? I've rebooted, checked the developer options are off and still it shows. Do you know if they can be enabled / disabled progmatically?

Seems like a bug on your device. Have you tried to disable all the developers options? I don't think that it can be changed programmatically.

Hi Erel

All devices mentioned so far have the developer options turned off. Incidentally, the chap with the S4 which was fixed by a reboot now has the red border back.

This warning may display even if developer options are not set.

I am using the Google Nexus and, with the 4.2 update, the Developer options disappeared and had to be specifically enabled but even before I did that, ccassionally some program on my phone that usually runs normally would cause this red border to flash on for a few seconds - presumably the phone has something running that slows it down for a few seconds, resulting in the border flashing.

Since this is an indicator for developers that an operation slows down the main thread, maybe the thing to do is to look at the program and see what might be causing the slowdown (don't treat it as a system bug, treat it as a program warning).