共享扩展程序未出现在能够在iPhone上共享照片的应用程序列表中

Question

共享扩展程序未出现在能够在iPhone上共享照片的应用程序列表中

Sau*_*tia 3 iphone xcode objective-c ios

我正在尝试创建一个共享应用程序扩展,并遵循此来源的教程:

http://www.technetexperts.com/mobile/share-extension-in-ios-application-overview-with-example/

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我正在使用XCode 8.0(8A218a)在模拟器上它按预期工作.在我的iPhone 5s上使用iOS 9.3.3.

我首先安装容器应用程序,然后在XCode询问"选择要运行的应用程序"时选择照片应用程序来运行扩展程序.

现在,当我在扩展程序运行时打开照片时,会出现以下错误:

MobileSlideShow[3500:589624] *** error reading settings archive file: <ISRootSettings:
/var/mobile/Documents/com.apple.mobileslideshow.settings/ISRootSettings_10.plist>

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现在,当我点击"共享"按钮时,我的容器应用程序不会出现在能够共享图片的应用程序列表中.

编辑: 我正在分享一些代码:

ShareViewController.m

@implementation ShareViewController
- (BOOL)isContentValid {
    // Do validation of contentText and/or NSExtensionContext attachments here
    return YES;
}

- (void)didSelectPost {

    for (NSItemProvider* itemProvider in ((NSExtensionItem*)self.extensionContext.inputItems[0]).attachments ) {

        if([itemProvider hasItemConformingToTypeIdentifier:@"public.jpeg"]) {
            NSLog(@"itemprovider = %@", itemProvider);

            [itemProvider loadItemForTypeIdentifier:@"public.jpeg" options:nil completionHandler: ^(id<NSSecureCoding> item, NSError *error) {

                NSData *imgData;
                if([(NSObject*)item isKindOfClass:[NSURL class]]) {
                    imgData = [NSData dataWithContentsOfURL:(NSURL*)item];
                }
                if([(NSObject*)item isKindOfClass:[UIImage class]]) {
                    imgData = UIImagePNGRepresentation((UIImage*)item);
                }

                NSDictionary *dict = @{
                                       @"imgData" : imgData,
                                       @"name" : self.contentText
                                       };
                NSUserDefaults *defaults = [[NSUserDefaults alloc] initWithSuiteName:@"group.iosApp.testSharing"];
                [defaults setObject:dict forKey:@"img"];
                [defaults synchronize];
            }];
        }
    }
}

@end

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ViewController.m

@implementation ViewController

- (void)viewWillAppear:(BOOL)animated {

    [super viewWillAppear:animated];
    NSUserDefaults *defaults = [[NSUserDefaults alloc] initWithSuiteName:@"group.iosApp.testSharing"];
    NSDictionary *dict = [defaults valueForKey:@"img"];

    if (dict) {

         NSData *imgData = [dict valueForKey:@"imgData"];
         UIImage *image = [UIImage imageWithData:imgData];
         [_shareImageView setImage:image];
         _shareImageNameLabel.text = [dict valueForKey:@"name"];
         [defaults removeObjectForKey:@"img"];
     }

 }

@end

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