输出UIView的详细信息

主要是给UIView写了一个category，输出主要包括了UIView的frame、类名、子视图等。

 

UIView+FullDescription.h

 

#import <UIKit/UIKit.h>

@interface UIView (FullDescription)

- (NSMutableDictionary *)fullDescription;

@end

  

UIView+FullDescription.m

 

#import "UIView+FullDescription.h"

@implementation UIView (FullDescription)

/**
* Builds a tree of data about all the views starting at this view
* and traversing all subviews. Data includes:
*	- className (name of the subclass of UIView)
*	- address (address in memory)
*	- tag
*	- text (if any)
*	- title (if any)
*	- subviews (recursive structures)
**/
- (NSMutableDictionary *)fullDescription {
	NSDictionary *frame =
    [NSDictionary dictionaryWithObjectsAndKeys:
     [NSNumber numberWithFloat:self.frame.origin.x], @"x",
     [NSNumber numberWithFloat:self.frame.origin.y], @"y",
     [NSNumber numberWithFloat:self.frame.size.width], @"width",
     [NSNumber numberWithFloat:self.frame.size.height], @"height",
     nil];
	NSMutableDictionary *description =
    [NSMutableDictionary dictionaryWithObjectsAndKeys:
     [NSNumber numberWithInteger:(NSInteger)self], @"address",
     NSStringFromClass([self class]), @"className",
     frame, @"frame",
     [NSNumber numberWithInteger:[self tag]], @"tag",
     [self valueForKeyPath:@"subviews.fullDescription"], @"subviews",
     nil];
	
	if ([self respondsToSelector:@selector(text)])
		[description setValue:[self performSelector:@selector(text)] forKey:@"text"];
    
	if ([self respondsToSelector:@selector(title)])
		[description setValue:[self performSelector:@selector(title)] forKey:@"title"];
	
	if ([self respondsToSelector:@selector(currentTitle)])
		[description setValue:[self performSelector:@selector(currentTitle)] forKey:@"currentTitle"];
	
	return description;
}

@end