It's hard to trouble shoot with a single file. There are many pieces
and steps involved to get the entire work flow to work. I write close
to 30 pages not including screens to explain it in details.
On Jan 18, 9:03 pm, ronnocv <ronnocv11223...@gmail.com> wrote:
> I tried to make a twitter client i have an api with 2 files
> TwitterRequest.h and TwitterRequest.m
> here is the code for the .m file
> //
> // TwitterRequest.m
> // Chirpie
> //
> // Created by Brandon Trebitowski on 6/15/09.
> // Copyright 2009 __MyCompanyName__. All rights reserved.
> //
>
> #import "TwitterRequest.h"
>
> @implementation TwitterRequest
>
> @synthesize username;
> @synthesize password;
> @synthesize receivedData;
> @synthesize delegate;
> @synthesize callback;
> @synthesize errorCallback;
>
> -(void)friends_timeline:(id)requestDelegate requestSelector:
> (SEL)requestSelector{
> isPost = NO;
> // Set the delegate and selector
> self.delegate = requestDelegate;
> self.callback = requestSelector;
> // The URL of the Twitter Request we intend to send
> NSURL *url = [NSURL URLWithString:@"http://api.twitter.com/1/statuses/
> update.xml"];
> [self request:url];
>
> }
>
> -(void)statuses_update:(NSString *)status delegate:(id)requestDelegate
> requestSelector:(SEL)requestSelector; {
> isPost = YES;
> // Set the delegate and selector
> self.delegate = requestDelegate;
> self.callback = requestSelector;
> // The URL of the Twitter Request we intend to send
> NSURL *url = [NSURL URLWithString:@"http://api.twitter.com/1/statuses/
> update.xml"];
> requestBody = [NSString stringWithFormat:@"status=%@",status];
> [self request:url];
>
> }
>
> -(void)request:(NSURL *) url {
> theRequest = [[NSMutableURLRequest alloc] initWithURL:url];
>
> if(isPost) {
> NSLog(@"ispost");
> [theRequest setHTTPMethod:@"POST"];
> [theRequest setValue:@"application/x-www-form-urlencoded"
> forHTTPHeaderField:@"Content-Type"];
> [theRequest setHTTPBody:[requestBody
> dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]];
> [theRequest setValue:[NSString
> stringWithFormat:@"%d",[requestBody
> length] ] forHTTPHeaderField:@"Content-Length"];
> }
>
> theConnection = [[NSURLConnection alloc] initWithRequest:theRequest
> delegate:self];
>
> if (theConnection) {
> // Create the NSMutableData that will hold
> // the received data
> // receivedData is declared as a method instance elsewhere
> receivedData=[[NSMutableData data] retain];
> } else {
> // inform the user that the download could not be made
> }
>
> }
>
> - (void)connection:(NSURLConnection *)connection
> didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge
> *)challenge {
> //NSLog(@"challenged %@",[challenge proposedCredential] );
>
> if ([challenge previousFailureCount] == 0) {
> NSURLCredential *newCredential;
> newCredential=[NSURLCredential credentialWithUser:[self
> username]
> password:[self
> password]
>
> persistence:NSURLCredentialPersistenceNone];
> [[challenge sender] useCredential:newCredential
> forAuthenticationChallenge:challenge];
>
> } else {
> [[challenge sender] cancelAuthenticationChallenge:challenge];
> // inform the user that the user name and password
> // in the preferences are incorrect
> NSLog(@"Invalid Username or Password");
> }
>
> }
>
> - (void)connection:(NSURLConnection *)connection didReceiveResponse:
> (NSURLResponse *)response
> {
> // this method is called when the server has determined that it
> // has enough information to create the NSURLResponse
>
> // it can be called multiple times, for example in the case of a
> // redirect, so each time we reset the data.
> // receivedData is declared as a method instance elsewhere
> //[receivedData setLength:0];
>
> }
>
> - (void)connection:(NSURLConnection *)connection didReceiveData:
> (NSData *)data {
> //NSLog([[NSString alloc] initWithData:data
> encoding:NSUTF8StringEncoding]);
> // append the new data to the receivedData
> // receivedData is declared as a method instance elsewhere
> [receivedData appendData:data];
>
> }
>
> - (void)connection:(NSURLConnection *)connection
> didFailWithError:(NSError *)error
> {
> // release the connection, and the data object
> [connection release];
> // receivedData is declared as a method instance elsewhere
> [receivedData release];
>
> [theRequest release];
>
> // inform the user
> NSLog(@"Connection failed! Error - %@ %@",
> [error localizedDescription],
> [[error userInfo] objectForKey:NSErrorFailingURLStringKey]);
>
> if(errorCallback) {
> [delegate performSelector:errorCallback withObject:error];
> }
>
> }
>
> - (void)connectionDidFinishLoading:(NSURLConnection *)connection
> {
> // do something with the data
>
> if(delegate && callback) {
> if([delegate respondsToSelector:self.callback]) {
> [delegate performSelector:self.callback
> withObject:receivedData];
> } else {
> NSLog(@"No response from delegate");
> }
> }
>
> // release the connection, and the data object
> [theConnection release];
> [receivedData release];
> [theRequest release];
>
> }
>
> -(void) dealloc {
> [super dealloc];
>
> }
>
> @end
>
> after i tap the update button the app crashes and it never posts, help
> what do i do
--
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