MRWatchdog

Usage

Setup with delay and handler:

NSTimeInterval const delayInMSec = 300; // ms
[MRWatchdog setupWithDelay:delayInMSec handler:^{
   throw std::runtime_error("Possible UI freeze!");
}];

Start to catch use-cases that are freezes UI for more than 300 ms:

[MRWatchdog start];

After catching an exception you can simply analyze Main thread call stack and find the problem in your code.

Stop the watchdog:

[MRWatchdog stop];

If you have an unfixable UI freeze (ex. using of thirdparty UI libraries) you can simply tell watchdog to skip observing freezes for (2 * delay) ms:

[MRWatchdog skip];