Présentation de Guillaume Cerquant (MacMation) lors de la session du 13 septembre 2012 de CocoaHeads Toulouse

2. UIView manipulation
and
layout debugging

3. Guillaume Cerquant
Développeur indépendant

5. [… locationManager:locationManager
didUpdateToLocation:@”Toulouse”
fromLocation:@”Paris”];

6. […
stringByReplacingOccurrencesOfString:
@" "
withString:
@" "];

9. Hey, UIView, t’es comment ?
Hey, subview de UIView, t’es comment ?
Hey, subview de subview de UIView, t’es comment ?
Hey, subview de subview de subview de UIView, t’es
comment ?
Hey, subview de subview de subview de subview de
UIView, t’es comment ?
Hey, subview de subview de subview de subview
de subview de UIView, t’es comment ?
Hey, subview de subview de subview de subview
de subview de subview de UIView, t’es comment ?
Technical Note TN2239
http://developer.apple.com/library/ios/#technotes/tn2239/_index.html

12. CG
Rect
NS

13. Frame Bounds

14. { 0; 1; -1; n }

15. CGRectMake(blah, blah,
blah, blah);

16. CGGeometry.h
/* Points. */
struct CGPoint {
CGFloat x;
CGFloat y;
};
typedef struct CGPoint CGPoint;
/* Sizes. */
struct CGSize {
CGFloat width;
CGFloat height;
};
typedef struct CGSize CGSize;
/* Rectangles. */
struct CGRect {
CGPoint origin;
CGSize size;
};
typedef struct CGRect CGRect;

17. (CGRect){x, y,
width, height}

18. (CGRect){0.0f, 0.0f,
navigationBarFrame.size}

19. #define
CGRectMakeAtOriginZero(rect, ...)
((CGRect) {0.0f, 0.0f, (rect).size})

20. CGRect CGRectInset (
CGRect rect,
CGFloat dx,
CGFloat dy
);

21. NSStringFromCGRect(CGRect)

22. [self.view addSubview:
aViewController.view];
[self addChildViewController:
aViewController];

23. - (CGRect)convertRect:(CGRect)rect
fromView:(UIView *)view
- (CGRect)convertRect:(CGRect)rect
toView:(UIView *)view
- (CGPoint)convertPoint:(CGPoint)point
fromView:(UIView *)view
CGRect rect =
[view convertRect:view.bounds toView:self];

24. self.view.transform =
CGAffineTransformMakeScaleProportional(
self.view.frame,
2.0f);
self.view.transform =
CGAffineTransformIdentity;

25. [[UIApplication sharedApplication]
beginIgnoringInteractionEvents];
[UIView animateWithDuration:0.4
animations:^{
webViewScreenshotImageView.transform =
CGAffineTransformMakeScale(0.7, 0.7);
} completion:^(BOOL finished) {
[[UIApplication sharedApplication]
endIgnoringInteractionEvents];
[self.navigationController
popViewControllerAnimated:YES];
}];

26. center

27. setWantsLayer:YES

29. alpha = 0.0f
vs
hidden = YES

31. https://github.com/domesticcatsoftware/DCIntrospect

32. NSLogger
• fpillet/NSLogger · GitHub

33. UIView+Alignment
https://github.com/dingbat/uiview-alignment
Frame Helper
https://github.com/cameronboehmer/uiview-
frame-helpers
Frame Utilities
http://www.codercowboy.com/code-frameutils-
objective-c-frame-utilities/

34. https://github.com/glock45/iOS-Hierarchy-Viewer

36. Wanted:
Designer
Web Dev
Marketing Rockstar

37. guillaume@macmation.com
@gcerquant