1: I make a view based app
2: Go to the View controller .m file
3: Do the DrawRect method

- (void)drawRect:(CGRect)rect
{
// Get the graphics context and clear it
CGContextRef ctx = UIGraphicsGetCurrentContext();
CGContextClearRect(ctx, rect);
// Draw a red solid square
CGContextSetRGBFillColor(ctx, 1.0, 0.0, 0.0, 1.0);
CGContextFillRect(ctx, CGRectMake(10, 10, 50, 50));
}

And nothing happens. I’ve wasted my whole day. Any help?
Should I redraw something? Why doest it draws on my template mede view??? thx

I’m trying to draw a gauge — like a speedometer or volt meter.

Do you know of any links that point to source code that I can use as a starting point.

Thanks,

MM.

help me or i die ! (U can add nick hoangtuanfithou, please)
code like that :

//Init Image Array
-(void)InitImageArray1
{
myAnimationImages1 = [[NSMutableArray alloc] init];

for ( int i = 0; i < 24; i++ )
{
NSAutoreleasePool *poolArray=[[NSAutoreleasePool alloc] init];

NSString *fileName = [NSString stringWithFormat:@"001 (%d)",i];
image = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:fileName ofType:@”jpg”]];

[myAnimationImages1 addObject:image];
[poolArray release];
}

}

//Change Image
self.mainImage.image = [self.myAnimationImages1 objectAtIndex:animationImageArrIndex];

How do i use it in xcode? which type of project should i create? and where should i put the code you’ve provided?

-John