[CocoaBean]

I can't seem to start an NSTimer. Here is my simple example, and hopefully someone can help me out....

I have a subclass of NSView which has a NSTimer property. It overrides initWithFrame which does:

<code>
NSRunLoop *r=[NSRunLoop currentRunLoop];

[super initWithFrame:frameRect];

timer=[NSTimer timerWithTimeInterval:2 target:self selector:@selector(nextFrame userInfo:nil repeats:YES];

[r addTimer:timer forMode:[r currentMode]];
return self;
</code>

Now the nextFrame: method is there and works (it just executes NSBeep()). It segfaults on [r currentMode] (I assume because it return nil). And I don't understand what the forMode: argument is. Regardless, if I just make up a string (ie @"") the method is never called.

Hopefully someone understands what's wrong here.

Thanks!!
Jeff

[Dalgo]

I have used NSTimer before without any trouble. I don't remember how I added it to a run loop other than the default one, but you are just adding the timer to the default one so it's no big deal. just use:

scheduledTimerWithTimeInterval:invocation:repeats:
or
scheduledTimerWithTimeInterval:target:selector:use rInfo:repeats:

They automatically register the new timer with the current NSRunLoop object in the default mode.

[IamBob]

From looking at the docs, forMode: expects one of the following:
NSDefaultRunLoopMode
NSConnectionReplyMode
NSModalPanelRunLoopMode
NSEventTrackingRunLoopMode

Hope that helps.

[Wixar]

Consider putting the timer initializaion in the awakeFromNib method instead of initWithFrame:. The run loops may not be established when initWithFrame: is called.

-Peter