Invalidating a nstimer

When it fires, the timer sends a message to the target object associated with it.In order to truly understand timers, you have to know a bit about NSRun Loop.However, when you use a repeating timer and forget about retaining, this means trouble.This post includes 2 ways applied by my team to deal with that issue.oh, wait.” If you want to follow me, I’m @zpasternack on Twitter and on If you would like to see an example of NSTimer in use, please see: Create falling objects in your i OS Application using NSTimer “You use the Objective-C NSTimer class to create timer objects or, more simply, timers.

We might want to stop the timer, repeat it with the same interval, or with a different interval (not shown here): Repeat Subscriber Id // Execute closure after given delay. A timer waits until a certain time interval has elapsed and then fires, sending a specified message to a target object.For example, you could create an NSTimer object that sends a message to a window, telling it to update itself after a certain time interval.” Apple Firstly I’d like to draw your attention to the Cocoa/CF documentation (which is always a great first port of call).First let’s look a bit a the pieces that we are going to use.Basically a timer executes some code after a time interval one or more times. A timer object waits for a specific time interval to elapse and then it fires.

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