我正在开发一个简单的应用程序，用于读取 QR 码 vCard 并在 QR 码 vCard 中显示联系信息的详细信息。我可以扫描 vCard 并获取联系人的详细信息，如下所示
BEGIN:VCARD
VERSION:2.1
N:XX;XXXXXXXX
FN:XXXXXXXXX XX
TEL;WORK;VOICE:91999999999
EMAIL;WORK;INTERNET:sac@gmail.com
END:VCARD
但我需要解析其中的每个元素。细节如何解析，有哪些解析方式？
【问题讨论】：
标签： iphone parsing qr-code vcf-vcard
文档指向这个方法：
- (void) imagePickerController: (UIImagePickerController*) reader
didFinishPickingMediaWithInfo: (NSDictionary*) info
{
id<NSFastEnumeration> results = [info objectForKey: ZBarReaderControllerResults];
ZBarSymbol *symbol = nil;
for(symbol in results){
NSString *upcString = symbol.data;
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Scanned UPC" message:[NSString stringWithFormat:@"The UPC read was: %@", upcString] delegate:self cancelButtonTitle:nil otherButtonTitles:@"Ok", nil];
[alert show];
[reader dismissModalViewControllerAnimated: YES];
}
}
我会先看看它返回什么，也许可以尝试循环字典以获取更多数据
【讨论】：
这个问题被问了很久。但现在回答也可能对导航到此页面的人有所帮助。您可以参考下面的方法来解析 VCF 数据。
NSString *str = [NSString stringWithString:response.vcfString];
NSArray *subStrings = [str componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"\n"]];
NSArray *getData = [[NSArray alloc]init];
NSString *arr = @"";
for (int i=0;i<[subStrings count];i++)
{
arr = [subStrings objectAtIndex:i];
NSArray *abc = [arr componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@";"]];
if([[abc objectAtIndex:0] isEqualToString:@"FN"])
{
getData=[[abc objectAtIndex:1] componentsSeparatedByCharactersInSet: [NSCharacterSet characterSetWithCharactersInString:@":"] ];
if([getData count] > 1)
fullName = [getData objectAtIndex:1];
}
else if([[abc objectAtIndex:0] isEqualToString:@"N"])
{
getData=[[abc objectAtIndex:1] componentsSeparatedByCharactersInSet: [NSCharacterSet characterSetWithCharactersInString:@":"]];
if([getData count] > 1)
lastName = [getData objectAtIndex:1];
FirstName = [abc objectAtIndex:2];
}
else if([[abc objectAtIndex:0] isEqualToString:@"TITLE"])
{
getData=[[abc objectAtIndex:1] componentsSeparatedByCharactersInSet: [NSCharacterSet characterSetWithCharactersInString:@":"]];
if([getData count] > 1)
title = [getData objectAtIndex:1];
}
else if([[abc objectAtIndex:0] isEqualToString:@"TEL"])
{
NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
if([abc count] == 3)
{
getData=[[abc objectAtIndex:2] componentsSeparatedByCharactersInSet: [NSCharacterSet characterSetWithCharactersInString:@":"]];
if([[abc objectAtIndex:1] isEqualToString:@"WORK"])
{
if([getData count] > 1)
[dict setObject:[getData objectAtIndex:1] forKey:@"Tel"];
}
else if([[abc objectAtIndex:1] isEqualToString:@"CELL"])
{
if([getData count] > 1)
[dict setObject:[getData objectAtIndex:1] forKey:@"Tel"];
}
}
else if([abc count] == 4)
{
getData=[[abc objectAtIndex:3] componentsSeparatedByCharactersInSet: [NSCharacterSet characterSetWithCharactersInString:@":"]];
if([[abc objectAtIndex:1] isEqualToString:@"WORK"] && [[abc objectAtIndex:2] isEqualToString:@"FAX"])
{
if([getData count] > 1)
[dict setObject:[getData objectAtIndex:1] forKey:@"Tel"];
}
}
else
{
getData=[[abc objectAtIndex:1] componentsSeparatedByCharactersInSet: [NSCharacterSet characterSetWithCharactersInString:@":"]];
if([[getData objectAtIndex:0] isEqualToString:@"WORK"])
{
if([getData count] > 1)
[dict setObject:[getData objectAtIndex:1] forKey:@"Tel"];
}
else if([[getData objectAtIndex:0] isEqualToString:@"FAX"])
{
if([getData count] > 1)
[dict setObject:[getData objectAtIndex:1] forKey:@"Tel"];
}
}
[_telList addObject:dict];
}
else if([[abc objectAtIndex:0] isEqualToString:@"EMAIL"])
{
NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
if([abc count] == 3)
{
getData=[[abc objectAtIndex:2] componentsSeparatedByCharactersInSet: [NSCharacterSet characterSetWithCharactersInString:@":"]];
if([[abc objectAtIndex:1] isEqualToString:@"WORK"])
{
if([getData count] > 1)
[dict setObject:[getData objectAtIndex:1] forKey:@"Email"];
}
}
else
{
getData=[[abc objectAtIndex:1] componentsSeparatedByCharactersInSet: [NSCharacterSet characterSetWithCharactersInString:@":"]];
if([getData count] > 1)
[dict setObject:[getData objectAtIndex:1] forKey:@"Email"];
}
[_emailList addObject:dict];
}
else if([[abc objectAtIndex:0] isEqualToString:@"ORG"])
{
NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
if([abc count] == 5)
{
getData=[[abc objectAtIndex:2] componentsSeparatedByCharactersInSet: [NSCharacterSet characterSetWithCharactersInString:@":"]];
if([[abc objectAtIndex:1] isEqualToString:@"WORK"])
{
NSString *orgStr = @"";
if([getData count] > 1)
{
orgStr = [getData objectAtIndex:1];
}
[dict setObject:[orgStr stringByAppendingString:[abc objectAtIndex:4]] forKey:@"Org"];
}
}
else
{
getData=[[abc objectAtIndex:1] componentsSeparatedByCharactersInSet: [NSCharacterSet characterSetWithCharactersInString:@":"]];
if([getData count] > 1)
[dict setObject:[getData objectAtIndex:1] forKey:@"Org"];
}
[_orgList addObject:dict];
}
else if([[abc objectAtIndex:0] isEqualToString:@"ADR"])
{
NSMutableDictionary *dict = [NSMutableDictionary dictionary];
if([abc count] == 9)
{
[dict setObject:[abc objectAtIndex:4] forKey:@"Add"];
[dict setObject:[abc objectAtIndex:8] forKey:@"Country"];
[dict setObject:[abc objectAtIndex:7] forKey:@"Zip"];
[dict setObject:[abc objectAtIndex:5] forKey:@"City"];
}
else
{
}
[_addrList addObject:dict];
}
else if([[abc objectAtIndex:0] isEqualToString:@"URL"])
{
NSMutableDictionary *dict = [NSMutableDictionary dictionary];
if([abc count] == 3)
{
getData=[[abc objectAtIndex:2] componentsSeparatedByCharactersInSet: [NSCharacterSet characterSetWithCharactersInString:@":"]];
if([getData count] > 1)
[dict setObject:[getData objectAtIndex:1] forKey:@"Url"];
}
else
{
getData=[[abc objectAtIndex:1] componentsSeparatedByCharactersInSet: [NSCharacterSet characterSetWithCharactersInString:@":"]];
if([getData count] > 1)
[dict setObject:[getData objectAtIndex:1] forKey:@"Url"];
}
[_urlList addObject:dict];
}
else
{
}
}
NSLog(@"Details: \nFull Name - %@\nLast Name - %@\nFirst Name - %@\ntitle - %@\nEmail - %@\norg - %@\nAddress - %@\nUrl - %@", fullName,lastName,FirstName,title,[[_emailList valueForKey:@"description"] componentsJoinedByString:@""],[_orgList description],[_addrList description],[_urlList description] );
【讨论】：
你可以使用二维码的编码器
【讨论】：
您可以使用CNContactVCardSerialization 从数据中获取CNContact 对象
import Contacts
if let data = str.data(using: .utf8) {
do {
let contacts = try CNContactVCardSerialization.contacts(with: data)
let contact = contacts.first
print("\(String(describing: contact?.familyName))")
return contact
} catch {
print("Contact Error: \(error.localizedDescription)")
}
}
【讨论】：