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PORefresh view with display and setNeedsDisplay not working
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copied!<p>I am having problems updating my customView object during simulation. The window pops up after the simulation is done. I would like it to update itself during the simulation. For this I use <code>setNeedsDisplay:YES</code> and I have also tried <code>display</code>. None of this works for me however. Does anyone have an idea how I should get this working? As you can see below I have tried to create a new thread for the updating as well as using NSOperations. Grateful for help!</p> <pre><code>//Run simulation for (int iteration=0; iteration<numberOfIterations; iteration++){ //NSInvocationOperation *update = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(updatePopulation) object:nil]; //NSInvocationOperation *draw = [[NSInvocationOperation alloc] initWithTarget:view selector:@selector(redraw) object:nil]; //[draw addDependency:update]; //[queue addOperation:update]; //[queue addOperation:draw]; [NSThread sleepForTimeInterval:0.01]; //to make it easer to see.. [self updatePopulation]; //[view redraw]; [NSThread detachNewThreadSelector:@selector(redraw) toTarget:view withObject:nil]; //[self performSelector:@selector(updatePopulation) withObject:nil afterDelay:1]; //[view performSelector:@selector(redraw) withObject:nil afterDelay:1]; //Save segregation if (iteration%(numberOfIterations/100) == 0) { printf("hej\n"); } } </code></pre> <p>in my viewer class:</p> <pre><code>- (void) redraw { //[self setNeedsDisplay:YES]; [self display]; } </code></pre>

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