i can only parse 1st element of this xml but i want to get all the content of cuisine
this is my xml
<cuisines>
<cuisine>Asian</cuisine>
<cuisine>Nepalese</cuisine>
<cuisine>North Indian</cuisine>
<cuisine>Indian Vegetarian</cuisine>
<cuisine>Organic Cuisine</cuisine>
</cuisines>
and this is the code to parse
if ( [elementName isEqualToString:#"cuisines"]) {
if ( [elementName isEqualToString:#"cuisine"] ) {
elementName=[[NSMutableString alloc] init];
keyInProgress = [elementName copy];
// This is a string we will append to as the text arrives
textInProgress = [[[NSMutableString alloc] init]autorelease];
return;
}
but its not working i want to get all the value
you need to implement the parser method as well as the following NSXMLParserDelegate protocol methods methods:
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
A good tutorial can be found here: Consuming a RESTful Service (bit.ly) in an iPhone Application
Related
As a beginner, I have read about NSXMLParser and try to implement a parser for parsing an xml
<?xml version="1.0" encoding="UTF-8"?>
<a>Some text here</a>
my implementation
-(OneNodeXMLParser*)initOneNodeXMLParser{
appDelegate = (OneNodeXMLParser*)[[UIApplication sharedApplication]delegate];
return self;
}
-(void)parser:(NSXMLParser*) parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{
NSLog(#"%s",__PRETTY_FUNCTION__,nil);
if([elementName isEqualToString:#"a"]){
// init some varibles
}
NSLog(#"Starting processing");
}
-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{
NSLog(#"%s",__PRETTY_FUNCTION__,nil);
NSLog(#"%s",string);
}
-(void) parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{
NSLog(#"%s",__PRETTY_FUNCTION__,nil);
NSLog(#"Finishing processing");
}
What should I modify to parse the file successfully?
In your .h file declare a NSMutableString *store;
And change the following methods like:
-(void)parser:(NSXMLParser*) parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
if([elementName isEqualToString:#"a"])
{
store = [[NSMutableString alloc] init];
}
NSLog(#"Starting processing");
}
-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
NSLog(#"%s",string);
if (store != nil)
{
[store appendString:string];
}
}
-(void) parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
NSLog(#"Finishing processing String : %#", store);
}
You can use that string variable store for future use.
I wants use google weather api in my project. here I am struggling from long time. to get the current temperature. city, humidity,day of week etc
I successfully hit the url. but I not know exact what i do in foundCharacter method to fetch the value.
Thanks
- (void) parser:(NSXMLParser *)parser didStartElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{
if ([elementname isEqualToString:#"weather"])
{
currentTweet = [Tweet alloc];
}
}
- (void) parser:(NSXMLParser *)parser didEndElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{
if ([elementname isEqualToString:#"city"])
{
}
}
Please check the code:
- (void) parser:(NSXMLParser *)parser didStartElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
if ([elementname isEqualToString:#"weather"])
{
currentTweet = [Tweet alloc];
}
else if ([elementname isEqualToString:#"city"])
{
currentTweet.city = [attributeDict valueForKey:#"city"]
}
}
- (void) parser:(NSXMLParser *)parser didEndElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
if ([elementname isEqualToString:#"weather"])
{
NSLog("Current City: %#",currentTweet.city);
}
}
For this type of xml, you don't want to use the parser:foundCharacters:
Quote from NSXMLPareser reference guide about foundCharacters method:
Sent by a parser object to provide its delegate with a string
representing all or part of the characters of the current element.
The parser object may send the delegate several
parser:foundCharacters: messages to report the characters of an
element. Because string may be only part of the total character
content for the current element, you should append it to the current
accumulation of characters until the element changes.
For more details: NSXML Parser Reference,
Working of parser,foundCharacters use
I have the following xml file which I am parsing using NSXMLParser :
<geometry id="window_strip-mesh" name="window_strip">
<mesh>
<source id="window_strip-mesh-positions">
<float_array id="window_strip-mesh-positions-array" count="1302">399.297 -87842.3 233.334 399.297 -89320.4 233.334 -821.159
...
</float_array>
My question is how can I detect / capture the values that are listed after the > (i.e the 399.297 -87842.3 and so on). Is NSXML Parser able to pick these up ?
Thanks !
you can implement the NSXMLDelegate methods,
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict;
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string;
- (void)parser:(NSXMLParser *)parser foundCDATA:(NSData *)CDATABlock;
and
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
For your example you have to put the following line in the didStartElement: Method:
if([elementName isEqualToString:#"float_array"]) {
float_array_bool = YES;
}
Then in the - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string; Method you can implement
if (float_array_bool) {
[yourItemToStoreValues.floatArray addObject:string];
}
In the parserDidEndElement: Method you have to unset tho bool value:
if([elementName isEqualToString:#"float_array"]) {
float_array_bool = NO;
}
That should do the trick
How do you extract attributes from XML using NSXML parser??
Heres my xml:
<item>
<title>Button hails 'amazing' win</title>
<description>Jenson Button hailed yesterday's crazy Canadian Grand Prix victory as the best of his Formula One career.
</description>
<link>http://www.skysports.com/story/0,19528,12433_6986809,00.html</link>
<guid isPermaLink="false">12433_6986809</guid>
<pubDate>Mon, 13 Jun 2011 06:21:00 GMT</pubDate>
<category>News Story</category>
<enclosure type="image/jpg" url="http://img.skysports.com/11/06/128x67/Canadian-GP-Jenson-Button-celebrates1_2609288.jpg" length="123456" />
</item>
I need to get the url from the enclosure tags.
Thanks
if([elementName isEqualToString:#"enclosure"])
{
NSString *urlValue=[attributeDict valueForKey:#"url"];
NSString *urlValue=[attributeDict valueForKey:#"type"];
NSString *urlValue=[attributeDict valueForKey:#"length"];
}
you need to use NSXMLParser and its delegate functions
-
(BOOL) parse:(NSData *)xmlData
-(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{
}
then you need to use some thing like this
if([elementName isEqualToString:#"enclosure"])
{
NSMutableDictionary *Dict=[NSMutableDictionary dictionary];
[Dict setObject:[attributeDict valueForKey:#"url"] forKey:#"url"];
[categoryDict setObject:[attributeDict valueForKey:#"type"] forKey:#"type"];
}
The method...
(void) parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qualifiedName
attributes:(NSDictionary *)attributeDict
Gives you a dictionary of attributes and their keys (attributeDict)... look for an entry keyed "url" when the elementName is equal to "enclosure"...
Here is explanation:
Example xml with attribute:
Use xml delegate method:
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
attributes:(NSDictionary *)attributeDict
{
if ([elementName isEqualToString:#"remoteContent"]){
NSString* href = [attributeDict objectForKey:#"href"];
NSLog(#"href %#",href);
[someArray addObject:href];
}
}
This is the xml I am getting from web:
<?xml version="1.0"?>
<abc>87C4A556-B7E5-5AE4-81FE-86BE0C6306E1</abc>
<abc2>P29077758</abc2>
<abc3>55AGD99D</abc3>
<abc4>147</abc4>
<abc5>1286259226</abc5>
<abc6>USA</abc6>
<abc7>US</abc7>
and using this to get attribute:
-(void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
if( [elementName isEqualToString:#"a"])
{
recordResults = FALSE;
// greeting.text = soapResults;
[soapResults release];
soapResults = nil;
}
}
Something like that, but I don't have any idea how can I get attribute from returned xml and assign those returned variables into my created variable. How can I do this?
http://blancer.com/tutorials/i-phone/76999/parsing-xml-files/ hope this helps !!!
I highly recommend using TouchXML to do your XML parsing.
I personally had all kinds of issues with NSXMLParser and ended up using TouchXML. Works a treat!
You should implement the following methods:-
One way you can use is :-
(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qName
attributes:(NSDictionary *)attributeDict
{
//check that the element is the one you want. If it is then initialize the string in which you want to store the value.
if(elementName isEqualToString:#"abc")
{
tempString = [[NSMutableString alloc] init];
}
}
(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
[tempString appendString:string];
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qName
{
if(elementName isEqualToString:#"abc")
{
self.StringToStore = tempString;
}
}