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Thread의 기초

http://maclove.pe.kr/30

performSelector의 셀렉터와 인수

@implementation ClassForSelectors
- (void) fooNoInputs {
    NSLog(@"Does nothing");
}
- (void) fooOneIput:(NSString*) first {
    NSLog(@"Logs %@", first);
}
- (void) fooFirstInput:(NSString*) first secondInput:(NSString*) second {
    NSLog(@"Logs %@ then %@", first, second);
}
- (void) performMethodsViaSelectors {
    [self performSelector:@selector(fooNoInputs)];
    [self performSelector:@selector(fooOneInput:) withObject:@"first"];
    [self performSelector:@selector(fooFirstInput:secondInput:) withObject:@"first" withObject:@"second"];
}
@end

http://stackoverflow.com/questions/1018195/objective-c-calling-selectors-with-multiple-arguments

.bounds = CGRectMake(0,0,50,50);   // 크기

.position = self.view.center;    // 위치

.cornerRadius = 30;  // 0는 사각형, 100은 원

.borderColor = [UIColor blueColor].CGColor; // Color

      .borderWidth = 0.5;   // 선굵기

      addSublayer:   //SubLayer추가

    [self.view.layer addSublayer:calayer];    // 뷰에 레이어 배치

ref : http://soooprmx.com/wp/archives/2509

CALayer 에 이미지 그리기

 [calayer setContents:(id)[[UIImage imageNamed:@"icon.png"] CGImage]];

UIImageView 회전시키기

UIImageView *imageView = [UIImageView imageViewWithImage:srcImage];   //srcImage : UIImage

imageView.transform = CGAffineTransformMakeRotation(90*M_PI /180);    // 90 degree