我使用来自 Dimitris 的URL 解析器类,但是当 init 对象出现时我遇到了一个问题initWithURLString
:
- (id) initWithURLString:(NSString *)url{
self = [super init];
if (self != nil) {
NSString *string = url;
NSScanner *scanner = [NSScanner scannerWithString:string];
[scanner setCharactersToBeSkipped:[NSCharacterSet characterSetWithCharactersInString:@"&?"]];
NSString *tempString;
NSMutableArray *vars = [NSMutableArray new];
//ignore the beginning of the string and skip to the vars
[scanner scanUpToString:@"?" intoString:nil];
while ([scanner scanUpToString:@"&" intoString:&tempString]) {
[vars addObject:[tempString copy]];
}
self.variables = vars;
}
return self;
}
在线[scanner scanUpToString:@"?" intoString:nil];
我得到一个错误:
[NSURL 长度]:无法识别的选择器发送到实例 0x1f8c2050
这怎么可能?
编辑:也许你想知道我如何调用 URLParser:
URLParser *urlParser = [[URLParser alloc]initWithURLString:[info valueForKey:UIImagePickerControllerReferenceURL]];
UIImagePickerControllerReferenceURL 值为:assets-library://asset/asset.PNG?id=8D2F0449-11A3-4962-9D60-C446831645D7&ext=PNG