打印ViewTree

来源：互联网发布：json美化 js 编辑：程序博客网时间：2024/06/06 05:15

查看当前viewtree结构

下列代码加入到AppDelegate

- (void)dumpView:(UIView *)aView atIndent:(int)indentinto:(NSMutableString *)outstring

{

for (int i = 0; i< indent; i++) [outstring appendString:@"--"];

[outstringappendFormat:@"[%2d] %@\n", indent, [[aView class] description]];

for (UIView *viewin [aView subviews])

[selfdumpView:view atIndent:indent + 1 into:outstring];

}

// Start the tree recursion at level 0 with the root view

- (NSString *) displayViews: (UIView *) aView

{

NSMutableString*outstring = [[NSMutableString alloc] init];

[self dumpView:self.window atIndent:0 into:outstring];

return outstring ;

}

// Show the tree

- (void)logViewTreeForMainWindow

{

// CFShow([self displayViews: self.window]);

NSLog(@"Theview tree:\n%@", [self displayViews:self.window]);

}

然后在你想使用的地方使用

AppDelegate*a=(AppDelegate *)[[UIApplicationsharedApplication] delegate];

[alogViewTreeForMainWindow];

此时打印的就是当前的viewtree

如下：

[ 0] UIWindow

--[ 1] UILayoutContainerView

----[ 2] UITransitionView

------[ 3] UIViewControllerWrapperView

--------[ 4] UILayoutContainerView

----------[ 5] UINavigationTransitionView

------------[ 6] UIViewControllerWrapperView

--------------[ 7] UITableView

----------------[ 8] UITableViewCell

------------------[ 9] UITableViewCellContentView

--------------------[10] UILabel

--------------------[10] UIImageView

------------------[ 9] UIButton

--------------------[10] UIImageView

------------------[ 9] UIView

----------------[ 8] UITableViewCell

------------------[ 9] UITableViewCellContentView

--------------------[10] UILabel

--------------------[10] UIImageView

------------------[ 9] UIButton

--------------------[10] UIImageView

------------------[ 9] UIView

----------------[ 8] UITableViewCell

------------------[ 9] UITableViewCellContentView

--------------------[10] UILabel

--------------------[10] UIImageView

------------------[ 9] UIButton

--------------------[10] UIImageView

------------------[ 9] UIView

----------------[ 8] UITableViewCell

------------------[ 9] UITableViewCellContentView

--------------------[10] UILabel

--------------------[10] UIImageView

------------------[ 9] UIButton

--------------------[10] UIImageView

------------------[ 9] UIView

----------------[ 8] UITableViewCell

------------------[ 9] UITableViewCellContentView

--------------------[10] UILabel

--------------------[10] UIImageView

------------------[ 9] UIButton

--------------------[10] UIImageView

------------------[ 9] UIView

----------------[ 8] UITableViewCell

------------------[ 9] UITableViewCellContentView

--------------------[10] UILabel

--------------------[10] UIImageView

------------------[ 9] UIButton

--------------------[10] UIImageView

------------------[ 9] UIView

----------------[ 8] _UITableViewSeparatorView

----------[ 5] UINavigationBar

------------[ 6] UIMoreListController

------------[ 6] UINavigationItemView

------------[ 6] UINavigationButton

--------------[ 7] UIImageView

--------------[ 7] UIButtonLabel

----[ 2] UITabBarCustomizeView

------[ 3] UINavigationBar

--------[ 4] UINavigationBarBackground

--------[ 4] UINavigationItemView

--------[ 4] UINavigationButton

----------[ 5] UIImageView

----------[ 5] UIButtonLabel

------[ 3] UITabBarButton

--------[ 4] UITabBarSwappableImageView