xcode SLComposeViewController CompletionHandler
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时间：2020-09-15 02:07:29 来源:igfitidea点击:
SLComposeViewController CompletionHandler
提问by Johan de Klerk
Hi how do I get notified if a tweet was completed using the SLComposeViewController CompletionHandler. Here is the code to send a tweet
嗨，如果使用 SLComposeViewController CompletionHandler 完成推文，我如何获得通知。这是发送推文的代码
if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeTwitter])
{
SLComposeViewController *tweetSheet = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeTwitter];
[tweetSheet setInitialText:@"Tweeting from my own app! :)"];
[tweetSheet addURL:[NSURL URLWithString:@"www.someurl.com"]];
[self presentViewController:tweetSheet animated:YES completion:NULL];
}
回答by Johan de Klerk
Found the answer
找到答案
- (void)showTweetSheet
{
// Create an instance of the Tweet Sheet
SLComposeViewController *tweetSheet = [SLComposeViewController
composeViewControllerForServiceType:
SLServiceTypeTwitter];
// Sets the completion handler. Note that we don't know which thread the
// block will be called on, so we need to ensure that any UI updates occur
// on the main queue
tweetSheet.completionHandler = ^(SLComposeViewControllerResult result) {
switch(result) {
// This means the user cancelled without sending the Tweet
case SLComposeViewControllerResultCancelled:
break;
// This means the user hit 'Send'
case SLComposeViewControllerResultDone:
break;
}
// dismiss the Tweet Sheet
dispatch_async(dispatch_get_main_queue(), ^{
[self dismissViewControllerAnimated:NO completion:^{
NSLog(@"Tweet Sheet has been dismissed.");
}];
});
};
// Set the initial body of the Tweet
[tweetSheet setInitialText:@"just setting up my twttr"];
// Adds an image to the Tweet. For demo purposes, assume we have an
// image named 'larry.png' that we wish to attach
if (![tweetSheet addImage:[UIImage imageNamed:@"larry.png"]]) {
NSLog(@"Unable to add the image!");
}
// Add an URL to the Tweet. You can add multiple URLs.
if (![tweetSheet addURL:[NSURL URLWithString:@"http://twitter.com/"]]){
NSLog(@"Unable to add the URL!");
}
// Presents the Tweet Sheet to the user
[self presentViewController:tweetSheet animated:NO completion:^{
NSLog(@"Tweet sheet has been presented.");
}];
}
