PHP to JSON to iPhone [duplicate]
Possible Duplicate:
Cannot Get开发者_StackOverflow ASIHTTPRequest callback delegate to trigger
I have a php file which outputs the following JSON:
[{"0":"5","questionId":"5","1":"Morning Heart Rate","question":"Morning Heart Rate","2":"5","questionNumber":"5","3":"1","sectionId":"1"},{"0":"4","questionId":"4","1":"Evening Urine Colour","question":"Evening Urine Colour","2":"4","questionNumber":"4","3":"1","sectionId":"1"},{"0":"3","questionId":"3","1":"Evening Bodyweight","question":"Evening Bodyweight","2":"3","questionNumber":"3","3":"1","sectionId":"1"},{"0":"2","questionId":"2","1":"Morning Urine Colour","question":"Morning Urine Colour","2":"2","questionNumber":"2","3":"1","sectionId":"1"},{"0":"1","questionId":"1","1":"Morning Bodyweight","question":"Morning Bodyweight","2":"1","questionNumber":"1","3":"1","sectionId":"1"},{"0":"6","questionId":"6","1":"Time of Month (TOM)","question":"Time of Month (TOM)","2":"6","questionNumber":"6","3":"1","sectionId":"1"}]
This can be seen at the following link:
http://dev.speechlink.co.uk/David/get_questionstest.php
I am using JSONKit as the framework for decoding JSON in Objective C. The following method is used to communicate with the php:
//method to
+(void)getQuestions:(NSString*)sectionId{
NSString* url = @"http://dev.speechlink.co.uk/David/get_questions.php";
NSURL *link = [NSURL URLWithString:url];
ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:link];
[request setPostValue:sectionId forKey:@"section"];
[request setDelegate:self];
[request setDidFinishSelector:@selector(requestFinished:)];
[request startAsynchronous];
}
- (void)requestFinished:(ASIHTTPRequest *)request
{
//NSString *response = [request responseString];
NSLog(@"hello"); //never prints
}
The delegate is never called...Can anyone explain?
- (void)getQuestions:(NSString*)sectionId
Declare the method to be an instance method not an class method.
When you set [request setDelegate:self];
self must be an allocated object.
I check the link http://dev.speechlink.co.uk/David/get_questionstest.php and it is giving the response as you described. But in your code the link you used is different from the one you provided above.
http://dev.speechlink.co.uk/David/get_questions.php which is not giving any response and that may be the case why your delegate is not calling. Please change "get_questions.php" with "get_questionstest.php" and it will work fine.
Let me know if any problem.
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