用zxing2.0扫描二维码后，信息显示及联系人的添加
来源：互联网 发布：数据挖掘主要应用 编辑：程序博客网 时间：2024/06/09 22:16
先来分析一下，二维码扫描后，可能得到什么东西：网址，EMAIL，电话，名片等这几种应该是比较常用的。
先贴几张图
1.扫描按钮
2.zxing二维码扫描界面(这个界面可以自己画)
3.扫描到网页界面
4.扫描名片后的界面
二维码是这个：
扫描后：
5.保存到联系人，调用系统联系人界面
1.操作思想：
1.1 网址：主要两种是:"http://","https://"。所以我用的到方法就是判断字符串是否以"http://"或其他几种开头，这里需要注意
的是。[string1 hasPrefix: string2]; 这个方法是区分大小写的。所以注意，我们扫描出来的可能是"HTTP://"。
2.2 邮箱跟电话这里我没有去做判断，有需要的朋友可以自己判断一下。
3.3 名片：我做的这个项目主要是为了识别名片，所以这里多说一些。经过在网页上找到的二维码扫描结果发现，很多名片
格式是这样的："BEGIN:VCARD"、"BEGIN CARD:“、 ”MECARD:“ 、"CARD:"这几种。因为我没有在网上找名片格式的解析，都
是自己来判断的。
2.代码：
需要引入
#import <AddressBook/AddressBook.h>
#import <AddressBookUI/AddressBookUI.h>
//正常扫描退出事件>
- (void)zxingController:(ZXingWidgetController*)controller didScanResult:(NSString *)result { //resultsToDisplay :NSString类型 self.resultsToDisplay = result; NSLog(@"result是： %@",result); //第一种，判断如果是这个格式 if ([result hasPrefix:@"BEGIN:VCARD"]){ vCardArr = [[NSDictionary alloc] init]; NSString *a = [resolveVcard vcardTurnToMutableArray:result]; vCardArr = [[a JSONValue] retain]; NSLog(@"vCardArr是： %@",vCardArr); if ([vCardArr count]> 0 ) { btnOpen.hidden = YES; finalArr = [[NSMutableArray alloc] init]; for (id key in vCardArr) { if (![[NSString stringWithFormat:@"%@",[vCardArr objectForKey:key]] isEqualToString:@""]) { NSString *Astr = [resolveVcard whatString:key:[vCardArr objectForKey:key]]; [finalArr addObject:Astr]; } } NSLog(@"退出后finalArr count==%d",[finalArr count]); if ([finalArr count] >0) { [resultsView setHidden:YES]; [tabCard reloadData]; tabCard.hidden = NO; addBook.hidden = NO; } } }else //另外的几种格式，都包含CARD:。所以这里判断一下，是否查找到CARD: if ([result rangeOfString:@"CARD:"].location !=NSNotFound) {// }// if ([result hasPrefix:@"BEGIN CARD:"] || [result hasPrefix:@"MECARD:"] || [result hasPrefix:@"CARD:"]){ vCardArr = [[NSDictionary alloc] init]; NSString *a = [resolveVcard mecardTurnToMutableArray:result]; vCardArr = [[a JSONValue] retain]; if ([vCardArr count]> 0 ) { btnOpen.hidden = YES; finalArr = [[NSMutableArray alloc] init]; for (id key in vCardArr) { if (![[NSString stringWithFormat:@"%@",[vCardArr objectForKey:key]] isEqualToString:@""]) { NSString *Astr = [resolveVcard whatString:key:[vCardArr objectForKey:key]]; [finalArr addObject:Astr]; } } NSLog(@"退出后finalArr count==%d",[finalArr count]); if ([finalArr count] >0) { [resultsView setHidden:YES]; tabCard.hidden = NO; [tabCard reloadData]; addBook.hidden = NO; } } }else if (self.isViewLoaded) { [addBook setHidden:YES]; btnOpen.hidden = YES; [tabCard setHidden:YES]; [resultsView setHidden:NO]; [resultsView setText:resultsToDisplay]; [resultsView setNeedsDisplay]; if ([resultsToDisplay hasPrefix:@"http://"] ||[resultsToDisplay hasPrefix:@"https://"] ||[resultsToDisplay hasPrefix:@"HTTP://"] ||[resultsToDisplay hasPrefix:@"HTTPS://"]) { btnOpen.hidden = NO; [btnOpen setTitle:@"打开网页" forState:UIControlStateNormal]; } } [self dismissModalViewControllerAnimated:NO];}[resolveVcard vcardTurnToMutableArray:result];//resolveVcard 是另一个文件需要引入。下面贴出代码resolveVcard.h
#import <Foundation/Foundation.h>@interface resolveVcard : NSObject+ (NSString *) vcardTurnToMutableArray:(NSString *) cardString;+ (NSString *) mecardTurnToMutableArray:(NSString *) cardString;+ (NSString *) whatString:(id) cardString:(id)valueId;@end
resolveVcard.m
#import "resolveVcard.h"@implementation resolveVcard+ (NSString *) whatString:(id) cardString:(id)valueId{ NSLog(@"valueId===%@===",valueId); NSString *valueStr = [NSString stringWithFormat:@"%@",valueId]; NSLog(@"id===%@===",cardString); NSString *resultStr = [NSString stringWithFormat:@""]; if ([cardString isEqual:@"NAME"]) { resultStr = [resultStr stringByAppendingFormat:@"姓名: "]; resultStr = [resultStr stringByAppendingFormat:valueStr]; }if ([cardString isEqual:@"TEL"]) { resultStr = [resultStr stringByAppendingFormat:@"电话: "]; resultStr = [resultStr stringByAppendingFormat:valueStr]; }if ([cardString isEqual:@"EMAIL"]) { resultStr = [resultStr stringByAppendingFormat:@"邮箱: "]; resultStr = [resultStr stringByAppendingFormat:valueStr]; }if ([cardString isEqual:@"ADDRESS"]) { resultStr = [resultStr stringByAppendingFormat:@"地址: "]; resultStr = [resultStr stringByAppendingFormat:valueStr]; }if ([cardString isEqual:@"ORG"]) { resultStr = [resultStr stringByAppendingFormat:@"公司: "]; resultStr = [resultStr stringByAppendingFormat:valueStr]; }if ([cardString isEqual:@"URL"]) { resultStr = [resultStr stringByAppendingFormat:@"网址: "]; resultStr = [resultStr stringByAppendingFormat:valueStr]; } NSLog(@"resultStr===%@===",resultStr); return resultStr;}//其他格式+ (NSString *) mecardTurnToMutableArray:(NSString *) cardString{ /* BEGIN CARD:N:李XX;COR:公司名;TIL:经理;TEL:13899;M:186000;EM:xx@xx.com;IM:QQ 1232;ADR:地址;URL:http://xxx.com;; */ /* MECARD:N:aaaaa;TEL:234234;EMAIL:3434;ADR:rrrrrrrrrr;URL:http */ /* CARD:N:李XX;COR:公司名;ADR:地址;ZIP:43000;TEL:0239999;M:186393939;EM:KK@KK.COM;URL:HTTP://BAIDU.COM;; */ NSArray *cardArray;// 去除CARD:及之前的字符串 cardString = [cardString substringFromIndex:([cardString rangeOfString: @"CARD:"].location+@"CARD:".length)]; //没有找到更好的方法，所以还是使用死方法，定死数组字段名。如果以后找到更好的方法再更改 //预设定：NAME,TEL,EMAIL,ADDRESS,ORG,URL cardArray = [cardString componentsSeparatedByString:@";"]; //a 是一种JSON格式。方便转目录或者数组 NSString *a = [NSString stringWithFormat:@"{"]; for (NSString *str in cardArray) { NSLog(@"str in cardArray is==%@==",str); //提取NAME名字 if ([str hasPrefix:@"N:"]) { a = [a stringByAppendingString:@"\"NAME\":\""]; a = [a stringByAppendingString:[str substringFromIndex:(@"N:".length)]]; a = [a stringByAppendingString:@"\","]; } //提取TEL电话 if ([str hasPrefix:@"TEL:"]) { a = [a stringByAppendingString:@"\"TEL\":\""]; a = [a stringByAppendingString:[str substringFromIndex:(@"TEL:".length)]]; a = [a stringByAppendingString:@"\","]; } //提取EMAIL电邮 if ([str hasPrefix:@"EMAIL:"]) { a = [a stringByAppendingString:@"\"EMAIL\":\""]; a = [a stringByAppendingString:[str substringFromIndex:(@"EMAIL:".length)]]; a = [a stringByAppendingString:@"\","]; } if ([str hasPrefix:@"EM:"]) { a = [a stringByAppendingString:@"\"EMAIL\":\""]; a = [a stringByAppendingString:[str substringFromIndex:(@"EM:".length)]]; a = [a stringByAppendingString:@"\","]; } //提取ADR地址 if ([str hasPrefix:@"ADR:"]) { a = [a stringByAppendingString:@"\"ADDRESS\":\""]; a = [a stringByAppendingString:[str substringFromIndex:(@"ADR:".length)]]; a = [a stringByAppendingString:@"\","]; } //提取ORG公司 if ([str hasPrefix:@"ORG:"]) { a = [a stringByAppendingString:@"\"ORG\":\""]; a = [a stringByAppendingString:[str substringFromIndex:(@"ORG:".length)]]; a = [a stringByAppendingString:@"\","]; } if ([str hasPrefix:@"COR:"]) { a = [a stringByAppendingString:@"\"ORG\":\""]; a = [a stringByAppendingString:[str substringFromIndex:(@"COR:".length)]]; a = [a stringByAppendingString:@"\","]; } //提取URL网址 if ([str hasPrefix:@"URL:"]) { a = [a stringByAppendingString:@"\"URL\":\""]; a = [a stringByAppendingString:[str substringFromIndex:(@"URL:".length)]]; a = [a stringByAppendingString:@"\","]; } } a = [a stringByAppendingString:@"\"end数组结束end\":\""]; a = [a stringByAppendingString:@""]; a = [a stringByAppendingFormat:@"\"}"]; NSLog(@"a==%@",a); return a;}//将标准vcard数据转可变数组+ (NSString *) vcardTurnToMutableArray:(NSString *) cardString{ /* //以下是一个标准的vcard格式 BEGIN:VCARD VERSION:3.0 N:X;XX TEL:1383838438 EMAIL:xx@xx.com ADR:;;地址;;城市;邮编 ORG:公司 TITLE: URL:网址 NOTE:QQ:998 END:VCARD */ NSArray *cardArray; //判断是否是正规的vcard格式 if ([cardString hasPrefix:@"BEGIN:VCARD"]){ //去除掉头部 cardString = [cardString substringFromIndex:(@"BEGIN:VCARD\n".length)]; NSLog(@"取后的cardstring :===%@==",cardString); //分割转换成数组 cardArray = [cardString componentsSeparatedByString:@"\n"]; NSLog(@"分割后的数组 :%@",cardArray); } //没有找到更好的方法，所以还是使用死方法，定死数组字段名。如果以后找到更好的方法再更改 //预设定：NAME,TEL,EMAIL,ADDRESS,ORG,URL NSString *a = [NSString stringWithFormat:@"{"]; for (NSString *str in cardArray) { NSLog(@"str in cardArray is==%@==",str); //提取NAME名字 if ([str hasPrefix:@"N:"]) { a = [a stringByAppendingString:@"\"NAME\":\""]; a = [a stringByAppendingString:[str substringFromIndex:(@"N:".length)]]; a = [a stringByAppendingString:@"\","]; } //提取TEL电话 if ([str hasPrefix:@"TEL:"]) { a = [a stringByAppendingString:@"\"TEL\":\""]; a = [a stringByAppendingString:[str substringFromIndex:(@"TEL:".length)]]; a = [a stringByAppendingString:@"\","]; } //提取EMAIL电邮 if ([str hasPrefix:@"EMAIL:"]) { a = [a stringByAppendingString:@"\"EMAIL\":\""]; a = [a stringByAppendingString:[str substringFromIndex:(@"EMAIL:".length)]]; a = [a stringByAppendingString:@"\","]; } //提取EMAIL电邮 if ([str hasPrefix:@"ADR:"]) { a = [a stringByAppendingString:@"\"ADDRESS\":\""]; a = [a stringByAppendingString:[str substringFromIndex:(@"ADR:".length)]]; a = [a stringByAppendingString:@"\","]; } //提取EMAIL电邮 if ([str hasPrefix:@"ORG:"]) { a = [a stringByAppendingString:@"\"ORG\":\""]; a = [a stringByAppendingString:[str substringFromIndex:(@"ORG:".length)]]; a = [a stringByAppendingString:@"\","]; } //提取EMAIL电邮 if ([str hasPrefix:@"URL:"]) { a = [a stringByAppendingString:@"\"URL\":\""]; a = [a stringByAppendingString:[str substringFromIndex:(@"URL:".length)]]; a = [a stringByAppendingString:@"\","]; } } a = [a stringByAppendingString:@"\"end数组结束end\":\""]; a = [a stringByAppendingString:@""]; a = [a stringByAppendingFormat:@"\"}"]; NSLog(@"a==%@",a); return a;}@end增加联系人的方法
//增加联系人按钮事件- (IBAction)createOne:(id)sender{ if ([finalArr count] > 0) { ABNewPersonViewController *newPersonViewController = [[ABNewPersonViewController alloc] init]; //创建一条联系人记录 ABRecordRef tmpRecord = ABPersonCreate(); CFErrorRef error; BOOL tmpSuccess = NO; for (int i = 0; i < [finalArr count]; i++) { NSString *firstStr = [[finalArr objectAtIndex:i] substringToIndex:(@"前部: ".length)]; NSString *SecondStr = [[finalArr objectAtIndex:i] substringFromIndex:(@"前部: ".length)]; NSLog(@"firstStr:==%@==SecondStr===%@==",firstStr,SecondStr); if ([firstStr hasPrefix:@"姓名: "]) { NSString *name = [NSString stringWithFormat: SecondStr]; NSString *Xname = [NSString stringWithFormat:@""]; //如果有分割 如：X;XX if ([name rangeOfString:@";"].location !=NSNotFound) { Xname = [name substringToIndex:([name rangeOfString:@";"].location)]; name = [name substringFromIndex:([name rangeOfString:@";"].location+1)]; } //First name 名 --OK //注意转换类型 CFStringRef tmpFirstName = CFStringRef(name); tmpSuccess = ABRecordSetValue(tmpRecord, kABPersonFirstNameProperty, tmpFirstName, &error);// CFRelease(tmpFirstName); //Last name 姓 --OK CFStringRef tmpLastName = CFStringRef(Xname); tmpSuccess = ABRecordSetValue(tmpRecord, kABPersonLastNameProperty, tmpLastName, &error);// CFRelease(tmpLastName); } if ([firstStr hasPrefix:@"电话: "]) { CFStringRef tel = CFStringRef([NSString stringWithFormat:SecondStr]); //phone number //CFSTR("13902400000") //注意转换类型 // NSString *tmpPhones = [NSString stringWithFormat:tel];// CFStringRef tmpPhones = CFSTR("13902400000"); ABMutableMultiValueRef tmpMutableMultiPhones = ABMultiValueCreateMutable(kABMultiStringPropertyType); ABMultiValueAddValueAndLabel(tmpMutableMultiPhones, tel, kABPersonPhoneMobileLabel, NULL); tmpSuccess = ABRecordSetValue(tmpRecord, kABPersonPhoneProperty, tmpMutableMultiPhones, &error);// CFRelease(tmpPhones); } if ([firstStr hasPrefix:@"邮箱: "]) { CFStringRef mail = CFStringRef([NSString stringWithFormat:SecondStr]); //email 邮件 ABMutableMultiValueRef tmpMutableMultiEmails = ABMultiValueCreateMutable(kABMultiStringPropertyType); ABMultiValueAddValueAndLabel(tmpMutableMultiEmails, mail, kABWorkLabel, NULL); tmpSuccess = ABRecordSetValue(tmpRecord, kABPersonEmailProperty, tmpMutableMultiEmails, &error);// CFRelease(tmpEmail); } if ([firstStr hasPrefix:@"公司: "]) { NSString *org = [NSString stringWithFormat:SecondStr]; //公司 --OK CFStringRef tmpCompany = CFStringRef(org); tmpSuccess = ABRecordSetValue(tmpRecord, kABPersonOrganizationProperty, tmpCompany, &error);// CFRelease(tmpCompany); } if ([firstStr hasPrefix:@"网址: "]) { CFStringRef url = CFStringRef([NSString stringWithFormat:SecondStr]); //网址 ABMutableMultiValueRef tmpMutableMultiUrls = ABMultiValueCreateMutable(kABMultiStringPropertyType); ABMultiValueAddValueAndLabel(tmpMutableMultiUrls, url, kABWorkLabel, NULL); tmpSuccess = ABRecordSetValue(tmpRecord, kABPersonURLProperty, tmpMutableMultiUrls, &error);// CFRelease(tmpUrl); } if ([firstStr hasPrefix:@"地址: "]) { NSString *address = [NSString stringWithFormat:SecondStr]; //地址 //;;xxx;;XX;400039 NSString *strCity = [NSString stringWithFormat:@""]; NSString *strState = [NSString stringWithFormat:@""]; NSString *strZip = [NSString stringWithFormat:@""]; NSString *strCountry = [NSString stringWithFormat:@""]; NSString *strCountryCode = [NSString stringWithFormat:@""]; if ([address rangeOfString:@";"].location != NSNotFound) { NSArray *addarray = [address componentsSeparatedByString:@";"]; if ([addarray count] == 6) { address = [NSString stringWithFormat:[addarray objectAtIndex:2]]; strCity = [NSString stringWithFormat:[addarray objectAtIndex:4]]; strState = [NSString stringWithFormat:[addarray objectAtIndex:3]]; strZip = [NSString stringWithFormat:[addarray objectAtIndex:5]]; strCountry = [NSString stringWithFormat:[addarray objectAtIndex:1]]; strCountryCode = [NSString stringWithFormat:[addarray objectAtIndex:0]]; } } ABMutableMultiValueRef multiAddress = ABMultiValueCreateMutable(kABDictionaryPropertyType); NSMutableDictionary *addressDictionary = [[NSMutableDictionary alloc] init]; [addressDictionary setObject:address forKey:(NSString *) kABPersonAddressStreetKey]; [addressDictionary setObject:strCity forKey:(NSString *)kABPersonAddressCityKey]; [addressDictionary setObject:strState forKey:(NSString *)kABPersonAddressStateKey]; [addressDictionary setObject:strZip forKey:(NSString *)kABPersonAddressZIPKey]; [addressDictionary setObject:strCountry forKey:(NSString *)kABPersonAddressCountryKey]; [addressDictionary setObject:strCountryCode forKey:(NSString *)kABPersonAddressCountryCodeKey]; ABMultiValueIdentifier identifier; ABMultiValueAddValueAndLabel(multiAddress, addressDictionary, kABWorkLabel, &identifier); tmpSuccess =ABRecordSetValue(tmpRecord, kABPersonAddressProperty, multiAddress, &error); CFRelease(multiAddress); CFRelease(addressDictionary); } } newPersonViewController.displayedPerson = tmpRecord; newPersonViewController.newPersonViewDelegate = self; [self.navigationController pushViewController:newPersonViewController animated:YES]; [self.navigationController setNavigationBarHidden:NO animated:YES]; }}//联系人界面CANCEL事件- (void) newPersonViewController:(ABNewPersonViewController *)newPersonView didCompleteWithNewPerson:(ABRecordRef)person{ [self.navigationController setNavigationBarHidden:YES animated:YES]; [self.navigationController popViewControllerAnimated:YES];}//上面的代码中，有些地方用了CFRelease。有些没有用。是因为测试发现有的地方用了就报错。
CFRelease()
代码比较混乱，如果中间有什么问题。大家可以加入 QQ群：28433020 交流
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