Set a Label
[BallenLAbel setText:@"sdfsdf"];
myLabel.text=[NSString stringWithFormat:@"x = %f",startPoint.x];
- (void)drawRect:(CGRect)rect {
// Drawing code
//Make a simple rectangle and fill background BLUE with half Opeque
CGContextRef context = UIGraphicsGetCurrentContext();
//[[UIColor blueColor] set];
CGContextSetRGBFillColor(context, 0.0, 0.0, 1.0, 0.5);
rect = CGRectMake(20, 20, 40, 40);
CGContextFillRect(context, rect);
//Make a simple RED line from 0,0 to 100, 100 in a FRAME
//CGContextSetRGBFillColor(context, 1.0, 0.0, 0.0, 1.0);
[[UIColor redColor] set];
CGContextMoveToPoint(context, 0, 0);
CGContextAddLineToPoint( context, 100,100);
CGContextStrokePath(context);
}
Create an instance
MyClass *foo;
foo = [[MyClass alloc] init];
Destroy an instance
[foo release];
Info to screen
NSLog(@"Write some comment");
// C string char *foo;
// NSString NSString *bar;
foo = "this is a C string";
bar = @"this is an NSString";
printf(foo);
MyClass.
#import
@interface myClass : NSObject
@end
MyClass.m
@implementation myClass
@end import
import
#import voor NSLog, NSObject, NSWindow