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UIView階層インデックスを取得する方法？ （つまり、他のサブビュー間の深さ）

UIViewドキュメントから：

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

特定のインデックスにUIViewを挿入できるのは素晴らしいことですが、特定のUIViewが持つインデックスを読み取る方法が見つかりません。

UIViewが上部にあるのか、背面にあるのかを確認する必要があります...

編集：ブランドンがサブビュー配列の順序を指摘したので、ここでサブビュー階層を処理するためのいくつかの便利なメソッドを提供するダウンロード用に無料のUIViewカテゴリをまとめました： http：//www.touch-code-magazine。 com/uiview-layout-hierarchy-uiview-category-to-download /

objective-cuiview
25
Marin Todorov

インデックスがsuperViews subviewsプロパティ内のsubViewのインデックスと同じであることをほぼ100％確信しています。

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

私は次のコードでこれをテストしただけで動作します

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
48
Brandon Bodnar

次のように再帰メソッドを設定します。

- (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
    }
}

次に、それを呼び出します：

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

出力：

[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>>
7
chown