ios的UIView的tag,當是NSString時

使用 hash函數。

#import <UIKit/UIKit.h>@interface UIView (StringTag)-(void) stringTag:(NSString*) tag;-(UIView*) viewWithStringTag:(NSString*)tag;@end

#import "UIView+StringTag.h"@implementation UIView (StringTag)-(void) stringTag:(NSString *)tag{    [self setTag:[tag hash]];}-(UIView *)viewWithStringTag:(NSString *)tag{    return [self viewWithTag:[tag hash]];}@end

 UIView* view = [[UIViewalloc]init];

    [view stringTag:@"ABC"];

    

    [self.view
addSubview:view];

    

    UIView* v = [self.view viewWithStringTag:@"ABC"];