僅做記錄，一個函數和字符串之間的互相轉換

方法如下：

UIKIT_EXTERN NSString *NSStringFromCGPoint(CGPoint point);
UIKIT_EXTERN NSString *NSStringFromCGVector(CGVector vector);
UIKIT_EXTERN NSString *NSStringFromCGSize(CGSize size);
UIKIT_EXTERN NSString *NSStringFromCGRect(CGRect rect);
UIKIT_EXTERN NSString *NSStringFromCGAffineTransform(CGAffineTransform transform);
UIKIT_EXTERN NSString 
 
*NSStringFromUIEdgeInsets(UIEdgeInsets insets);
UIKIT_EXTERN NSString *NSStringFromUIOffset(UIOffset offset);

UIKIT_EXTERN CGPoint CGPointFromString(NSString *string);
UIKIT_EXTERN CGVector CGVectorFromString(NSString *string);
UIKIT_EXTERN CGSize CGSizeFromString(NSString *string);
UIKIT_EXTERN CGRect CGRectFromString(NSString 
 
*string);
UIKIT_EXTERN CGAffineTransform CGAffineTransformFromString(NSString *string);
UIKIT_EXTERN UIEdgeInsets UIEdgeInsetsFromString(NSString *string);
UIKIT_EXTERN UIOffset UIOffsetFromString(NSString *string);

例子：

結構體轉字符串：

NSString *NSStringFromCGPoint(CGPoint point);  
NSString *NSStringFromCGVector(CGVector vector);  
NSString 
 
*NSStringFromCGSize(CGSize size);  
NSString *NSStringFromCGRect(CGRect rect);  
NSString *NSStringFromCGAffineTransform(CGAffineTransform transform);  
NSString *NSStringFromUIEdgeInsets(UIEdgeInsets insets);  
NSString *NSStringFromUIOffset(UIOffset offset); 

字符串轉 結構體：

CGPoint CGPointFromString(NSString *string);  
CGVector CGVectorFromString(NSString *string);  
CGSize CGSizeFromString(NSString *string);  
CGRect CGRectFromString(NSString *string);   //我們在監聽高度變化時需要用這個 ,獲取鍵盤的frame 值,就是從一個 string類型中取出 CGRect!  
CGAffineTransform CGAffineTransformFromString(NSString *string);  
UIEdgeInsets UIEdgeInsetsFromString(NSString *string);//距離邊界的距離,上左下右的順序!  
UIOffset UIOffsetFromString(NSString *string);

ios開發之--CGRect/CGSize/CGPoint/CGVector/CGAffineTransform/UIEdgeInsets/UIOffset和NSString之間的轉換