Ios [SLComposeViewController initWithExtension:requestedServiceType:][u block\u invoke+；84

我在

SLComposeViewController上遇到一些崩溃

Crashed: com.apple.extension.global-state-queue
0  libobjc.A.dylib                0x18167cbb4 objc_loadWeakRetained + 156
1  libobjc.A.dylib                0x18167cd64 objc_copyWeak + 24
2  Social                         0x1933abdbc __66-[SLComposeViewController initWithExtension:requestedServiceType:]_block_invoke + 84
3  Foundation                     0x182b30b04 __85-[NSExtension _completeRequestReturningItems:forExtensionContextWithUUID:completion:]_block_invoke + 108
4  libdispatch.dylib              0x181ad1088 _dispatch_call_block_and_release + 24
5  libdispatch.dylib              0x181ad1048 _dispatch_client_callout + 16
6  libdispatch.dylib              0x181adae48 _dispatch_queue_serial_drain$VARIANT$mp + 528
7  libdispatch.dylib              0x181adb7d8 _dispatch_queue_invoke$VARIANT$mp + 340
8  libdispatch.dylib              0x181adc200 _dispatch_root_queue_drain_deferred_wlh$VARIANT$mp + 400
9  libdispatch.dylib              0x181ae44a0 _dispatch_workloop_worker_thread$VARIANT$mp + 644
10 libsystem_pthread.dylib        0x181d76fe0 _pthread_wqthread + 932
11 libsystem_pthread.dylib        0x181d76c30 start_wqthread + 4

在我看来，参考资料不知何故丢失了？有什么想法吗？

我没有做什么特别的事

- (void)presentTwitterShareWithURL:(NSURL *)url {

    if (url == nil) {
        return;
    }

    SLComposeViewController * cvc = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeTwitter];
    [cvc addURL:url];

    [cvc setCompletionHandler:^(SLComposeViewControllerResult result) {

        if (SLComposeViewControllerResultDone == result) {

            [[Analytics shared] trackWithCategory:@"Web" action:@"Tap" label:@"Share - Twitter"];

        }

    }];

    [self.navigationController presentViewController:cvc animated:YES completion:nil];

}

注意：在我看来，它与iOS11相关，因为我不记得以前有过这个问题，而且除了iOS11被删除之外，它也没有被跟踪。您需要使用Twitter自己的共享解决方案来实现此功能

有关从当前解决方案迁移到TwitterKit

的信息，请参见此页面：

在解除分配视图控制器后，似乎可以在库内部访问视图控制器。我想这是一个扩展的错误

保留视图控制器可能是一种解决方法

- (void)presentTwitterShareWithURL:(NSURL *)url {

    if (url == nil) {
        return;
    }

    __block SLComposeViewController * cvc = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeTwitter];
    [cvc addURL:url];

    [cvc setCompletionHandler:^(SLComposeViewControllerResult result) {

        if (SLComposeViewControllerResultDone == result) {

            [[Analytics shared] trackWithCategory:@"Web" action:@"Tap" label:@"Share - Twitter"];

        }

    }];

    [self.navigationController presentViewController:cvc animated:YES completion:^{
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
            cvc = nil;
        });
    }];
}