问题
could anyone pls help me to post fotos on facebook using objective c for iphone app.i tried it but its getting terminated when i check with iphone.its working properly in simulator.following is my code i used to post in fb.i use graph api for developing my app.
-(void)fbGraphCallback:(id)sender {
if ((fbGraph.accessToken == nil) || ([fbGraph.accessToken length] == 0)) {
NSLog(@"You pressed the 'cancel' or 'Dont Allow' button, you are NOT logged into Facebook...I require you to be logged in & approve access before you can do anything useful....");
//restart the authentication process.....
[fbGraph authenticateUserWithCallbackObject:self
andSelector:@selector(fbGraphCallback:)
andExtendedPermissions:@"user_photos,user_videos,publish_stream,offline_access,user_checkins,friends_checkins"];
[self.view addSubview:viewshare];
}
else {
NSMutableDictionary *variables = [NSMutableDictionary dictionaryWithCapacity:2];
//imgPicture is my image view name
NSLog(@"the Data::%@\n",imgPicture.image);
FbGraphFile *graph_file = [[FbGraphFile alloc] initWithImage:imgPicture.image];
[variables setObject:graph_file forKey:@"file"];
[variables setObject:[NSString stringWithFormat:@"%@", txtComment.text] forKey:@"message"];
FbGraphResponse *fb_graph_response = [fbGraph doGraphPost:@"me/photos" withPostVars:variables];
NSLog(@"postPictureButtonPressed: %@", fb_graph_response.htmlResponse);
NSLog(@"Now log into Facebook and look at your profile & photo albums...");
txtComment.text=@" ";
[txtComment setHidden:YES];
[lblcmt setHidden:YES];
UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:nil message:@"Successfully posted...Now log into Facebook & look at your profile" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];
[alertView show];
[alertView release];
}
[fbGraph release];
}
回答1:
First I check if facebook(the facebook object) has a valid session:
if (![facebook_ isSessionValid]) {
permissions_ = [[NSArray arrayWithObjects:@"read_stream", @"publish_stream", @"offline_access",nil] retain];
[facebook_ authorize:permissions_];
}
When I can guaranty that i'm logged into facebook I post the image like this:
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
image, @"picture",
message, @"message",
nil];
[facebook_ requestWithGraphPath:@"me/photos"
andParams:params
andHttpMethod:@"POST"
andDelegate:self];
Finally I check this methods in for being sure if the image post was succesful or not:
-(void)request:(FBRequest *)request didFailWithError:(NSError *)error {
//Error
}
-(void)request:(FBRequest *)request didLoad:(id)result {
//Succes
}
来源：https://stackoverflow.com/questions/8971098/how-to-post-images-in-facebook-in-iphone-app