setNeedsDisplay broken in Tiger
setNeedsDisplay broken in Tiger
- Subject: setNeedsDisplay broken in Tiger
- From: John Nairn <email@hidden>
- Date: Tue, 24 May 2005 10:31:49 -0600
| I have a thread that wants to tell a view to update and then the thread must wait until the view is updated before continuing. This thread worked fine until Tiger. The code fragment is
[myView setNeedsDisplay:YES] NSLog(@"needsDisplay is now %d",(int)[myView needsDisplay]); // it shows "1" [myView displayIfNeeded]; // force update (but was not needed before Tiger) while(YES) { [NSThread sleepUntilDate:[NSDate dateWithTimeIntervalSinceNow:0.2]]; if([myView needsDisplay]==NO) break; }
But the loop that waits until the view is updated never exits. I checked and drawRect is being called and successfully finished, but needsDisplay is never set back to NO. This was all fine until compiling in Tiger. What has changed in Tiger about updating views in a thread? Or is there another way to have a thread wait until a view has completed an update? |
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