[英]Unable to convert UTF-8 text from NSDictionary in Objective-C
我使用foursquare API
獲取我周圍的一些位置,但是當該位置的名稱不是英語時,名稱將如下所示:
name = "\U0645\U0633\U062c\U062f \U0627\U0644\U0633\U064a\U062f\U0629 \U0639\U0627\U0626\U0634\U0629 | Aisha Mosque";
我試圖將response
轉換為UTF-8,但沒有任何改變。
這是我的代碼:
-(void)setUpLocations{
NSURL *url = [NSURL URLWithString: @"https://api.foursquare...."];
NSData *data = [NSData dataWithContentsOfURL:url];
NSError *error = nil;
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
NSLog(@"Response: %@",[[[json objectForKey:@"response"]objectForKey:@"groups"]valueForKey:@"items"]);
}
日志結果是:
contact = { }; id = 51712507498ec4e8c5ae9f48; likes = { count = 0; groups = ( ); }; location = { address = Abdoun; cc = JO; city = Amman; country = Jordan; distance = 3819; lat = "31.95406043797281"; lng = "35.88095228186612"; }; name = "\\U0645\\U0633\\U062c\\U062f \\U0627\\U0644\\U0633\\U064a\\U062f\\U0629 \\U0639\\U0627\\U0626\\U0634\\U0629 | Aisha Mosque"; restricted = 1; stats = { checkinsCount = 43; tipCount = 2; usersCount = 23; }; verified = 0; },
有什么建議么 ??
編輯:這是我從字典中提取數據的方式:
NSDictionary *dic = [[[[json objectForKey:@"response"]objectForKey:@"groups"]valueForKey:@"items"] copy];
namesArray = [[NSArray alloc]initWithArray:[self removeWhiteSpaces:[dic valueForKey:@"name"]]];
-(NSArray *)removeWhiteSpaces:(NSDictionary *)dic{
NSString *str = [NSString stringWithFormat:@"%@",dic];
NSString *str2 = [str stringByReplacingOccurrencesOfString:@"\n" withString:@""];
NSString *secondString = [str2 stringByReplacingOccurrencesOfString:@" " withString:@""];
NSString *thirdString = [secondString stringByReplacingOccurrencesOfString:@"(" withString:@""];
NSString *forthString = [thirdString stringByReplacingOccurrencesOfString:@")" withString:@""];
NSString *fifthString = [forthString stringByReplacingOccurrencesOfString:@"\"" withString:@""];
NSArray *items = [fifthString componentsSeparatedByString:@","];
return items;
}
並在UITableView
:
cell.textLabel.text = [NSString stringWithFormat:@"Name: %@ ",[namesArray objectAtIndex:indexPath.row] ];
更新
在嘗試@Martin R答案后,我得到了相同的結果:
NSDictionary *dic = [[[[json objectForKey:@"response"]objectForKey:@"groups"]valueForKey:@"items"] copy];
NSString *value =[dic valueForKey:@"name"];
NSLog(@"%@", value);
UILabel *lbl = [[UILabel alloc]initWithFrame:self.view.frame];
lbl.numberOfLines = 0;
lbl.text = [NSString stringWithFormat:@"%@",value];;
[self.view addSubview:lbl];
這是結果的圖像
沒有問題。
NSLog()調用NSDictionary
和NSArray
的description
方法,並將所有非ASCII字符打印為\\Unnnn
轉義序列。
如果從字典中提取字符串值並打印,您將看到一切正確。
簡單的例子:
NSDictionary *dict = @{ @"currency": @"€" };
NSLog(@"%@", dict);
// Output: { currency = "\U20ac"; }
NSString *value = dict[@"currency"];
NSLog(@"%@", value);
// Output: €
更新:問題似乎出在您的removeWhiteSpaces:
方法中,因為
NSString *str = [NSString stringWithFormat:@"%@",dic];
已經使用description
方法將字典轉換為字符串,並且以下stringByReplacingOccurrencesOfString
調用是解決此問題的一種方法(不好意思!)。
您應該改為使用objectForKey
訪問字典鍵,或者使用for (NSString *key in dic) { ... }
枚舉字典,然后構建所需的數組。
更新2:從JSON數據(發布在聊天討論中)看來,您只需要
NSArray *itemsArray = json[@"response"][@"groups"][0][@"items];
NSArray *namesArray = [itemsArray valueForKey:@"name"];
請注意,“組”是具有一個元素的數組 。
嘗試使用此。
[NSString stringWithUTF8String:]
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