A replacement for NSLog() that records your logs to a persistent array so you can retrieve them at runtime
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JPLogRecorder.h
JPLogRecorder.m
README.md

README.md

JPLogRecorder

For iOS development - a replacement for NSLog() that persistently records your logs so that they remain intact post-crash, continuous across sessions, and retrievable.

Usage

Simply replace all instances of NSLog with JPLog.

Magic

JPLogRecorder does magical things like adding the file and line number where your log statement is. For example, given:

JPLog(@"retrieved feed. number of items: %@", items.count);

Your Xcode console will show:

2016-02-15 13:11:42.121 myApp [16664:1168045] <FeedViewController.m:46> retrieved feed. number of items: 26

The log, retrieved with [JPLogRecorder logArrayAsString] will show:

[2/15/16 1:11:42 PM] <FeedViewController.m:46> retrieved feed. number of items: 26

Get the log

[JPLogRecorder logArray] returns an array of log statements in reverse chronological order (newest first). [JPLogRecorder logArrayAsString] returns a string of the entire log with \n\n separating log statements.

The recorded log is capped

The number of retained log statements is capped at 50 -- this prevents the recorded log eating up potentially endless memory. You can change this by editing the static property in JPLogRecorder.m, or by calling [JPLogRecorder setMaxLogsRetained:100];

Enable Production logging

Say you're about to drop a release to TestFlight, but you want logging kept on so your users can use a function in your app that sends you the log when an error occurs. No problem, just call [JPLogRecorder setShouldLogInProduction:YES]. The default behavior for prod is that logging is disabled.

Javascript?

If you are looking for a javascript equivalent to this logging class, check out debugout.