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POFix unicode characters in NSString
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copied!<p>I am getting a string response from the Google Directions API that contains characters that are supposed to represent a different-language character. Similiar to ∆ß¬≥, similiar to these type of characters. I think the characters are portugese, but anyways my string contains like this:</p> <p>\U00e3o </p> <p>(I am not sure if those are zeroes or 'O's)</p> <p>I am not sure what the technical term for these characters are, but how can I fix them in my string so they print properly.</p> <p>Thank you</p> <p>UPDATE:</p> <p>I have updated my question title with the correct term 'unicode'.</p> <p>I have checked a few questions:</p> <p><a href="https://stackoverflow.com/questions/6839287/nsstring-unicode-display">NSString Unicode display</a></p> <p><a href="https://stackoverflow.com/questions/1706633/detect-unicode-characters-in-nsstring-on-iphone">Detect Unicode characters in NSString on iPhone</a></p> <p><a href="https://stackoverflow.com/questions/7602693/ios-html-unicode-to-nsstring">iOS HTML Unicode to NSString?</a></p> <p>And a few others. I have followed the answer, but the unicode characters are not fixed. </p> <p>UPDATE:</p> <p>Here is my code to get the response from GDirection. </p> <p>Forming the request and getting a response:</p> <pre><code> AFHTTPClient *_httpClient = [AFHTTPClient clientWithBaseURL:[NSURL URLWithString:@"http://maps.googleapis.com/"]]; [_httpClient registerHTTPOperationClass: [AFJSONRequestOperation class]]; [_httpClient setDefaultHeader:@"Accept" value:@"application/json"]; NSMutableDictionary *parameters = [[NSMutableDictionary alloc] init]; [parameters setObject:[NSString stringWithFormat:@"%f,%f", location.coordinate.latitude, location.coordinate.longitude] forKey:@"origin"]; [parameters setObject:[NSString stringWithFormat:@"%f,%f", location2.coordinate.latitude, location2.coordinate.longitude] forKey:@"destination"]; [parameters setObject:@"false" forKey:@"sensor"]; [parameters setObject:@"driving" forKey:@"mode"]; [parameters setObject:@"metric" forKey: @"units"]; NSMutableURLRequest *request = [_httpClient requestWithMethod:@"GET" path: @"maps/api/directions/json" parameters:parameters]; request.cachePolicy = NSURLRequestReloadIgnoringLocalCacheData; AFHTTPRequestOperation *operation = [_httpClient HTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation *operation, id responseObject) { NSInteger statusCode = operation.response.statusCode; if (statusCode == 200) { [self parseResponse:responseObject]; } else { } } failure:^(AFHTTPRequestOperation *operation, NSError *error) { }]; [_httpClient enqueueHTTPRequestOperation:operation]; } </code></pre> <p>Retrieving information from response object:</p> <pre><code>- (void)parseResponse:(NSDictionary *)response { NSString *status = [response objectForKey: @"status"]; if (![status isEqualToString: @"OK"]) { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:[NSString stringWithFormat: @"Google Directions Response Status: %@", status] delegate:self cancelButtonTitle:@"Dismiss" otherButtonTitles:nil, nil]; [alert show]; } else { NSArray *routes = [response objectForKey:@"routes"]; NSDictionary *routePath = [routes lastObject]; if (routePath) { NSString *overviewPolyline = [[routePath objectForKey: @"overview_polyline"] objectForKey:@"points"]; legs = [routePath valueForKey: @"legs"]; if (legs) { </code></pre> <p>/* DIRECTION SET ================================================================================================================================ */</p> <pre><code> directionOverview = [[NSMutableDictionary alloc] init]; NSString *legsDis = [NSString stringWithFormat: @"%@", [[legs valueForKey: @"distance"] valueForKey: @"text"]]; NSString *kmDistance = [self cutStringToPreference: legsDis]; if (kmDistance) { [directionOverview setObject:kmDistance forKey: @"distance"]; milesLabel.text = kmDistance; milesLabel.font = [UIFont fontWithName:@"interstate" size: 20.0]; } NSString *durationText = [NSString stringWithFormat: @"%@", [[legs valueForKey: @"duration"] valueForKey: @"text"]]; durationText = [self cutStringToPreference: durationText]; if (durationText) { [directionOverview setObject:durationText forKey: @"duration"]; } NSString *startAddress = [NSString stringWithFormat: @"%@", [legs valueForKey: @"start_address"]]; startAddress = [self cutStringToPreference: startAddress]; NSString *endAddress = [NSString stringWithFormat: @"%@", [legs valueForKey: @"end_address"]]; endAddress = [self cutStringToPreference: endAddress]; [directionOverview setObject:startAddress forKey: @"origin"]; [directionOverview setObject:endAddress forKey: @"destination"]; NSArray *steps = [legs valueForKey: @"steps"]; if (steps) { instructionArray = [[NSMutableArray alloc] init]; durationArray = [[NSMutableArray alloc] init]; distanceArray = [[NSMutableArray alloc] init]; int number = [[[steps lastObject] valueForKey: @"html_instructions"] count]; for (int i = 1; i <= number; ++i) { NSString *instruction = [[[steps lastObject] valueForKey: @"html_instructions"] objectAtIndex: i-1]; instruction = [self cutStringToPreference: instruction]; instruction = [self flattenHTML: instruction]; instruction = [self stringByDecodingHTMLEntitiesInString: instruction]; [instructionArray addObject: instruction]; NSString *distance = [[[[steps lastObject] valueForKey: @"distance"] objectAtIndex: i-1] valueForKey: @"text"]; [distanceArray addObject: distance]; NSString *duration = [[[[steps lastObject] valueForKey: @"duration"] objectAtIndex: i-1] valueForKey: @"text"]; [durationArray addObject: duration]; } } } _path = [self decodePolyLine:overviewPolyline]; NSInteger numberOfSteps = _path.count; CLLocationCoordinate2D coordinates[numberOfSteps]; for (NSInteger index = 0; index < numberOfSteps; index++) { CLLocation *location = [_path objectAtIndex:index]; CLLocationCoordinate2D coordinate = location.coordinate; coordinates[index] = coordinate; } polyLine = [MKPolyline polylineWithCoordinates:coordinates count:numberOfSteps]; [self.mapView addOverlay:polyLine]; } } } </code></pre> <p>Displaying the text in a label:</p> <pre><code> NSString *overviewAddressText = [NSString stringWithFormat: @"%@ to %@", [directionOverview objectForKey: @"origin"], [directionOverview objectForKey: @"destination"]]; overviewAddress.text = overviewAddressText; </code></pre> <p>UPDATE:</p> <p><a href="https://i.stack.imgur.com/oE7LE.png" rel="nofollow noreferrer">Image of label</a></p> <p>So as you can see, in the label, the text contains this kind of substring: <code>S/U00e3o</code>, which is a word that has an unsupported character. How can I fix that so that unicode turns into this: São </p>

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