我想将图像发布到Facebook和Twitter。我可以使用Twitter，但不能使用SLComposeViewController类的Facebook。没有添加图像，我能够将文本和URL发布到Facebook。问题是当我使用添加图像时，我无法发布该图像以及文本，URL。我发送时，SLComposeViewController会显示图像，文本和网址。我有正确的appId，但没有收到任何错误。但是问题仍然存在。我不在哪里。请帮我。
- (void)performFBRequestUploadForImage{
[self showListOfFaceBookAccountsFromStore];
if([SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook])
{
SLComposeViewController *mySLComposerSheet = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];
SLComposeViewControllerCompletionHandler __block completionHandler=^(SLComposeViewControllerResult result){
NSString *output;
switch (result) {
case SLComposeViewControllerResultCancelled:
output = @"ACtionCancelled";
break;
case SLComposeViewControllerResultDone:
output = @"Post Successfull";
[self dismissViewControllerAnimated:YES completion:nil];
break;
default:
break;
}
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Face Book Message" message:output delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];
[alert show];
};
[mySLComposerSheet addImage:[UIImage imageNamed:@"images4.jpg"]];
[mySLComposerSheet setInitialText:@"I am developer."];
[mySLComposerSheet addURL:[NSURL URLWithString:@"http://stackoverflow.com/"]];
[mySLComposerSheet setCompletionHandler:completionHandler];
[self presentViewController:mySLComposerSheet animated:YES completion:nil];
}
}
- (void)showListOfFaceBookAccountsFromStore
{
ACAccountStore *accountStore = [[ACAccountStore alloc] init];
ACAccountType *accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];
if( [SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook] )
{
NSDictionary *options = @{
@"ACFacebookAppIdKey" : myAppId,
@"ACFacebookPermissionsKey" : @[@"publish_stream"],
@"ACFacebookAudienceKey" : ACFacebookAudienceFriends};
[accountStore requestAccessToAccountsWithType:accountType options:options completion:^(BOOL granted, NSError *error){
if(granted) {
ACAccount * account = [[accountStore accountsWithAccountType:accountType] lastObject];
NSLog(@"Facebook user: %@",[account username]);
if([account username]==NULL){
[self facebookAlert];
} else {
}
}
else{
NSLog(@"Read permission error: %@", [error localizedDescription]);
}
}];
} else {
[self facebookAlert];
}
}
最佳答案
我在项目中使用以下代码来发布效果很好的图像。
if([SLComposeViewController instanceMethodForSelector:@selector(isAvailableForServiceType)] != nil)
{
if([SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook])
{
SLComposeViewController *controller = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];
SLComposeViewControllerCompletionHandler myBlock = ^(SLComposeViewControllerResult result){
if (result == SLComposeViewControllerResultCancelled) {
NSLog(@"Cancelled");
} else
{
NSLog(@"Done");
}
[controller dismissViewControllerAnimated:YES completion:Nil];
};
controller.completionHandler =myBlock;
[controller setInitialText:@"Check out my Christmas Gift!"];
[controller addImage:@"gift.jpg"];
[self presentViewController:controller animated:YES completion:Nil];
}
您只需尝试遵循以下教程
Tutorial 1
2. Tutorial 2