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¿Cómo obtener el índice de jerarquía UIView? (Es decir, la profundidad de entre las otras subvistas)

2010-02-26 23 views
25

De UIView docs:¿Cómo obtener el índice de jerarquía UIView? (Es decir, la profundidad de entre las otras subvistas)

(void)insertSubview:(UIView *)view atIndex:(NSInteger)index

Es muy bueno que puedo insertar un UIView en un determinado índice, pero no puedo encontrar una manera de leer lo que el índice tiene un determinado UIView .

tengo que comprobar si el UIView es en la parte superior o en la parte posterior ...

EDIT: Ahora que Brandon señaló el orden de la matriz subvistas, que arme una categoría UIView libre para descargar proporcionando algunos métodos prácticos para manejar la jerarquía subvistas aquí: http://www.touch-code-magazine.com/uiview-layout-hierarchy-uiview-category-to-download/

Fuente

2010-02-26 Marin Todorov

Respuesta

48

estoy casi 100% seguro de que el índice es el mismo que el índice de la vista secundaria dentro de la propiedad superViews subviews.

UIView * superView = .... some view 
UIView * subView = .... some other view 
[superView insertSubview:subView atIndex:index]; 
int viewIndex = [[superView subviews] indexOfObject:subView]; 
// viewIndex and index should be the same

Acabo de probar esto con el siguiente código y funciona

UIView* view1 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 50, 50)]; 
UIView* view2 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 50, 50)]; 
UIView* view3 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 50, 50)]; 
[self.view insertSubview:view1 atIndex:1]; 
[self.view insertSubview:view2 atIndex:2]; 
[self.view insertSubview:view3 atIndex:3]; 

NSLog(@"%d", [[self.view subviews] indexOfObject:view1]); // Is 1 
NSLog(@"%d", [[self.view subviews] indexOfObject:view2]); // Is 2 
NSLog(@"%d", [[self.view subviews] indexOfObject:view3]); // Is 3 

[self.view bringSubviewToFront:view1]; 
NSLog(@"%d", [[self.view subviews] indexOfObject:view1]); // Is end of array 

[self.view sendSubviewToBack:view1]; 
NSLog(@"%d", [[self.view subviews] indexOfObject:view1]); // Is 0

Fuente

2010-02-26 17:22:15

+1

me estaba probando esto justo antes de la publicación de la cuestión. Los índices de la matriz subvistas permanecen igual :( –

+0

Realmente, porque mi prueba muestran que el índice de la matriz subvista no cambiar después de una llamada a 'bringSubviewToFront:' –

+0

Usted tiene toda la razón Brandon, tengo una visión asignador la que doesn' t cambiar los índices, el conjunto de subvistas, por otro lado, los cambia. Gracias. Sin embargo, debo admitir que los documentos son imprecisos sobre cómo obtener el índice y si los índices más pequeños están en la parte superior o viceversa. –

7

Configuración de un método recursivo de la siguiente manera:

- (void)printViewHierarchy:(UIView *)viewNode depth:(NSUInteger)depth 
{ 
    for (UIView *v in viewNode.subviews) 
    { 
     NSLog(@"%@%@", [@"" stringByPaddingToLength:depth withString:@"|-" startingAtIndex:0], [v description]); 
     if ([v.subviews count]) 
      [self printViewHierarchy:v depth:(depth + 2)]; // + 2 to make the output look correct with the stringPadding 
    } 
}

A continuación, llame con:

[self printViewHierarchy:self.view depth:0];

Salida:

[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: <UILayoutContainerView: 0x622ce70; frame = (0 0; 768 1004); autoresize = W+H; layer = <CALayer: 0x622cec0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-<UINavigationTransitionView: 0x622cfa0; frame = (0 0; 768 1004); clipsToBounds = YES; autoresize = W+H; layer = <CALayer: 0x622cff0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-<UIViewControllerWrapperView: 0x601c4c0; frame = (0 0; 768 1004); autoresize = RM+BM; layer = <CALayer: 0x607c5f0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-<UIView: 0x6069c40; frame = (0 0; 768 1004); opaque = NO; autoresize = RM+BM; layer = <CALayer: 0x607b460>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-<UIToolbar: 0x623a550; frame = (0 0; 768 44); opaque = NO; autoresize = W+BM; layer = <CALayer: 0x623a610>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-<UIToolbarTextButton: 0x626d6a0; frame = (7 0; 52 44); opaque = NO; layer = <CALayer: 0x626e200>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIPushButton: 0x626d920; frame = (0 7; 52 30); opaque = NO; layer = <CALayer: 0x626d9c0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-<UIView: 0x623a440; frame = (69 -1; 755 45); opaque = NO; autoresize = W+BM; layer = <CALayer: 0x623a470>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIButton: 0x621cec0; frame = (-185 0; 505 45); opaque = NO; autoresize = W+BM; layer = <CALayer: 0x621cc20>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x62206d0; frame = (-35 -28; 100 100); alpha = 0; opaque = NO; userInteractionEnabled = NO; tag = 1886548836; layer = <CALayer: 0x621cc50>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x607ec40; frame = (0 7; 30 30); clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x607ec70>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIButtonLabel: 0x62306c0; frame = (32 14; 38 16); text = 'About'; clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x6230780>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIButton: 0x6230a00; frame = (-109 0; 510 45); opaque = NO; autoresize = W+BM; layer = <CALayer: 0x6230660>> 

[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x6230a90; frame = (-35 -28; 100 100); alpha = 0; opaque = NO; userInteractionEnabled = NO; tag = 1886548836; layer = <CALayer: 0x6230ac0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x607ebc0; frame = (0 7; 30 30); clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x607ebf0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIButtonLabel: 0x6231620; frame = (35 14; 30 16); text = 'Staff'; clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x6231e20>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIButton: 0x6231ea0; frame = (13 0; 465 45); opaque = NO; autoresize = W+BM; layer = <CALayer: 0x6231e50>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x6231f30; frame = (-35 -28; 100 100); alpha = 0; opaque = NO; userInteractionEnabled = NO; tag = 1886548836; layer = <CALayer: 0x6231f60>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x607eb40; frame = (0 7; 30 30); clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x607eb70>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIButtonLabel: 0x6233430; frame = (35 14; 71 16); text = 'Procedures'; clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x62334a0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIButton: 0x6233520; frame = (110 0; 485 45); opaque = NO; autoresize = W+BM; layer = <CALayer: 0x62334d0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x62335b0; frame = (-35 -28; 100 100); alpha = 0; opaque = NO; userInteractionEnabled = NO; tag = 1886548836; layer = <CALayer: 0x62335e0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x607eac0; frame = (0 7; 30 30); clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x607eaf0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIButtonLabel: 0x6234190; frame = (35 14; 52 16); text = 'Specials'; clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x62349d0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIButton: 0x6237560; frame = (200 0; 490 45); opaque = NO; autoresize = W+BM; layer = <CALayer: 0x6237510>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x62375f0; frame = (-35 -28; 100 100); alpha = 0; opaque = NO; userInteractionEnabled = NO; tag = 1886548836; layer = <CALayer: 0x6237620>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x607ea20; frame = (0 7; 30 30); clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x607ea50>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIButtonLabel: 0x6238170; frame = (35 14; 46 16); text = 'Gallery'; clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x62389d0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIButton: 0x6234a50; frame = (305 0; 475 45); opaque = NO; autoresize = W+BM; layer = <CALayer: 0x6234a00>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x6234ae0; frame = (-35 -28; 100 100); alpha = 0; opaque = NO; userInteractionEnabled = NO; tag = 1886548836; layer = <CALayer: 0x6234b10>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x607e940; frame = (0 7; 30 30); clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x607e970>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIButtonLabel: 0x6235670; frame = (35 14; 64 16); text = 'Education'; clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x6235ed0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIButton: 0x6235f30; frame = (435 0; 455 45); opaque = NO; autoresize = W+BM; layer = <CALayer: 0x6235f00>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x6235fc0; frame = (-35 -28; 100 100); alpha = 0; opaque = NO; userInteractionEnabled = NO; tag = 1886548836; layer = <CALayer: 0x6235ff0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x607e7b0; frame = (0 7; 30 30); clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x607e7e0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIButtonLabel: 0x6236b80; frame = (35 14; 83 16); text = 'Appointment'; clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x6236bf0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-<UIView: 0x623a370; frame = (0 0; 768 1004); hidden = YES; opaque = NO; autoresize = W+H; userInteractionEnabled = NO; layer = <CALayer: 0x623a3a0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-<UIView: 0x6239f40; frame = (234 427; 300 150); autoresize = LM+RM+TM+BM; userInteractionEnabled = NO; layer = <CALayer: 0x6239f70>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UILabel: 0x6239fa0; frame = (0 20; 300 22); text = 'Loading...'; clipsToBounds = YES; opaque = NO; autoresize = W+BM; userInteractionEnabled = NO; layer = <CALayer: 0x623a010>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UILabel: 0x623a120; frame = (0 40; 300 35); text = 'This may take a few minut...'; clipsToBounds = YES; opaque = NO; autoresize = W+BM; userInteractionEnabled = NO; layer = <CALayer: 0x623a190>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIActivityIndicatorView: 0x6238a70; frame = (132 93; 37 37); opaque = NO; autoresize = LM+RM+TM+BM; animations = { contents=<CAKeyframeAnimation: 0x605f810>; }; layer = <CALayer: 0x6238ad0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-<UIView: 0x62307e0; frame = (54 68; 660 916); hidden = YES; autoresize = LM+RM+H; layer = <CALayer: 0x6230810>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-<UIImageView: 0x6230840; frame = (0 0; 660 916); alpha = 0.75; hidden = YES; autoresize = W+H; userInteractionEnabled = NO; layer = <CALayer: 0x6230870>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-<UIPageControl: 0x621b7b0; frame = (0 887; 660 36); opaque = NO; autoresize = W+TM; layer = <CALayer: 0x621b870>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIImageView: 0x621ed20; frame = (279 15; 6 6); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x62215a0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIImageView: 0x621a620; frame = (295 15; 6 6); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x621b5c0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIImageView: 0x622d210; frame = (311 15; 6 6); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x621ca40>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIImageView: 0x621ca70; frame = (327 15; 6 6); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x621caa0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIImageView: 0x621cad0; frame = (343 15; 6 6); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x621cb00>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIImageView: 0x621cb30; frame = (359 15; 6 6); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x621cb60>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIImageView: 0x6226910; frame = (375 15; 6 6); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x621ed50>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-<UIScrollView: 0x623e9a0; frame = (0 0; 660 896); clipsToBounds = YES; autoresize = W+H; layer = <CALayer: 0x623c520>; contentOffset: {0, 0}> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-<UIView: 0x6248070; frame = (0 0; 660 896); autoresize = W+H; layer = <CALayer: 0x62480a0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UILabel: 0x62480d0; frame = (0 0; 660 35); text = 'About Us'; clipsToBounds = YES; opaque = NO; autoresize = W+BM; userInteractionEnabled = NO; layer = <CALayer: 0x6248140>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UIImageView: 0x621f280; frame = (0 50; 660 200); hidden = YES; autoresize = W+BM; userInteractionEnabled = NO; layer = <CALayer: 0x623bc70>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-<UITextView: 0x621db30; frame = (20 35; 620 646); text = ''; clipsToBounds = YES; autoresize = W+H; layer = <CALayer: 0x6237ce0>; contentOffset: {0, 0}> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-|-<UITextSelectionView: 0x6232840; frame = (0 0; 0 0); userInteractionEnabled = NO; layer = <CALayer: 0x62328e0>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-|-<UIImageView: 0x6012950; frame = (615 266; 5 124); alpha = 0; opaque = NO; autoresize = LM; userInteractionEnabled = NO; layer = <CALayer: 0x6069b90>> 
[Line: 472] -[iPadRootViewController printViewHierarchy:depth:]: |-|-|-|-|-|-|-|-<UIWebDocumentView: 0x6a65e00; frame = (0 0; 620 50); text = ''; opaque = NO; userInteractionEnabled = NO; layer = <UIWebLayer: 0x6236980>>

Fuente

2011-08-19 16:35:34 chown

+1

O (indocumentado, pero funciona): NSLog (@ "% @", [self.view recursiveDescription]); –

+1

@MarkBeaton 'Ninguna interfaz visible @ para 'UIView' declara el selector 'recursiveDescription'' Obtuve este error al intentar hacer eso. – aleclarson

+1

Es un método privado: normalmente solo lo uso en el depurador (por ejemplo, '' 'po [someView recursiveDescription]' ''. En el código, puedes probar '' '[someView performSelector: @selector (recursiveDescription)]' ' 'para evitar el error del compilador, o simplemente (temporalmente) deshabilitar el error del compilador. –

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