Kod udostępniania ścieżki/pliku pliku między rozszerzeniem udziałów a aplikacją na iOS

Question

Dodałem rozszerzenie udziału dla mojej aplikacji, powiedz SAMPLE (już istnieje w sklepie z aplikacjami), nazwijmy powiedzmy SAMPLESHARE. Za każdym razem, gdy użytkownik, powiedzmy, robi zdjęcie i próbuje je udostępnić, chcę, aby przejrzał kontroler widoku funkcji "Otwórz w" i nie uzyskaj dialogu "Poczta" od Apple, zasadniczo go pomijając. Dlatego próbuję udostępnić zdjęcie między rozszerzeniem udziału a moją aplikacją, tworząc grupę aplikacji, która jest udostępniana między aplikacją i wtyczką, a następnie przekazując ścieżki plików do otwartego adresu użytkownika delegata aplikacji z mojej aplikacji.

Więc moim głównym delegatem aplikacji mam

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation 
{ 

    return [[SAMPLEExternalFileHandler shared] handleExternalFileURL:url]; 
} 

które w zasadzie używać do sprawdzania za każdym razem, gdy mam pliku ścieżkę URL, który musi otworzyć inny przepływ.

W moim SHAREEXTENSION mam

#import "ShareViewController.h" 
#import <MobileCoreServices/UTCoreTypes.h> 
//Macro to hide post dialog or not, if defined, will be hidden, comment during debugging 
#define HIDE_POST_DIALOG 

@interface ShareViewController() 

@end 

@implementation ShareViewController 

NSUInteger m_inputItemCount = 0; // Keeps track of the number of attachments we have opened asynchronously. 
NSString * m_invokeArgs = NULL; // A string to be passed to your AIR app with information about the attachments. 
NSString * APP_SHARE_GROUP = @"group.com.SAMPLE.SAMPLESHAREPLUGIN"; 
const NSString * APP_SHARE_URL_SCHEME = @"SAMPLE"; 
CGFloat m_oldAlpha = 1.0; // Keeps the original transparency of the Post dialog for when we want to hide it. 

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

- (void) didSelectPost 
{ 
#ifdef HIDE_POST_DIALOG 
    return; 
#endif 
    [ self passSelectedItemsToApp ]; 
    // Note: This call is expected to be made here. Ignore it. We'll tell the host we are done after we've invoked the app. 
    // [ self.extensionContext completeRequestReturningItems: @[] completionHandler: nil ]; 
} 
- (void) addImagePathToArgumentList: (NSString *) imagePath 
{ 
    assert(NULL != imagePath); 

    // The list of arguments we will pass to the AIR app when we invoke it. 
    // It will be a comma-separated list of file paths: /path/to/image1.jpg,/path/to/image2.jpg 
    if (NULL == m_invokeArgs) 
    { 
     m_invokeArgs = imagePath; 
    } 
    else 
    { 
     m_invokeArgs = [ NSString stringWithFormat: @"%@,%@", m_invokeArgs, imagePath ]; 
    } 
} 

- (NSString *) saveImageToAppGroupFolder: (UIImage *) image 
           imageIndex: (int) imageIndex 
{ 
    assert(NULL != image); 

    NSData * jpegData = UIImageJPEGRepresentation(image, 1.0); 

    NSURL * containerURL = [ [ NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier: APP_SHARE_GROUP ]; 
    NSString * documentsPath = containerURL.path; 

    // Note that we aren't using massively unique names for the files in this example: 
    NSString * fileName = [ NSString stringWithFormat: @"image%d.jpg", imageIndex ]; 

    NSString * filePath = [ documentsPath stringByAppendingPathComponent: fileName ]; 
    [ jpegData writeToFile: filePath atomically: YES ]; 

    return filePath; 
} 

- (void) passSelectedItemsToApp 
{ 
    NSExtensionItem * item = self.extensionContext.inputItems.firstObject; 

    // Reset the counter and the argument list for invoking the app: 
    m_invokeArgs = NULL; 
    m_inputItemCount = item.attachments.count; 

    // Iterate through the attached files 
    for (NSItemProvider * itemProvider in item.attachments) 
    { 
     // Check if we are sharing a JPEG 
     if ([ itemProvider hasItemConformingToTypeIdentifier: (NSString *) kUTTypeImage ]) 
     { 
      // Load it, so we can get the path to it 
      [ itemProvider loadItemForTypeIdentifier: (NSString *) kUTTypeImage 
              options: NULL 
            completionHandler:^(UIImage * image, NSError * error) 
      { 
       static int itemIdx = 0; 

       if (NULL != error) 
       { 
        NSLog(@"There was an error retrieving the attachments: %@", error); 
        return; 
       } 

       // The app won't be able to access the images by path directly in the Camera Roll folder, 
       // so we temporary copy them to a folder which both the extension and the app can access: 
       NSString * filePath = [ self saveImageToAppGroupFolder: image imageIndex: itemIdx ]; 

       // Now add the path to the list of arguments we'll pass to the app: 
       [ self addImagePathToArgumentList: filePath ]; 

       // If we have reached the last attachment, it's time to hand control to the app: 
       if (++itemIdx >= m_inputItemCount) 
       { 
        [ self invokeApp: m_invokeArgs ]; 
       } 
      } ]; 
     } 
    } 
} 
- (void) invokeApp: (NSString *) invokeArgs 
{ 
    // Prepare the URL request 
    // this will use the custom url scheme of your app 
    // and the paths to the photos you want to share: 
    NSString * urlString = [ NSString stringWithFormat: @"%@://%@", APP_SHARE_URL_SCHEME, (NULL == invokeArgs ? @"" : invokeArgs) ]; 
    NSURL * url = [ NSURL URLWithString: urlString ]; 

    NSString *className = @"UIApplication"; 
    if (NSClassFromString(className)) 
    { 
     id object = [ NSClassFromString(className) performSelector: @selector(sharedApplication) ]; 
     [ object performSelector: @selector(openURL:) withObject: url ]; 
    } 

    // Now let the host app know we are done, so that it unblocks its UI: 
    [ super didSelectPost ]; 
} 

#ifdef HIDE_POST_DIALOG 
- (NSArray *) configurationItems 
{ 
    // Comment out this whole function if you want the Post dialog to show. 
    [ self passSelectedItemsToApp ]; 

    // To add configuration options via table cells at the bottom of the sheet, return an array of SLComposeSheetConfigurationItem here. 
    return @[]; 
} 
#endif 


#ifdef HIDE_POST_DIALOG 
- (void) willMoveToParentViewController: (UIViewController *) parent 
{ 
    // This is called at the point where the Post dialog is about to be shown. 
    // Make it transparent, so we don't see it, but first remember how transparent it was originally: 

    m_oldAlpha = [ self.view alpha ]; 
    [ self.view setAlpha: 0.0 ]; 
} 
#endif 

#ifdef HIDE_POST_DIALOG 
- (void) didMoveToParentViewController: (UIViewController *) parent 
{ 
    // Restore the original transparency: 
    [ self.view setAlpha: m_oldAlpha ]; 
} 
#endif 
#ifdef HIDE_POST_DIALOG 
- (id) init 
{ 
    if (self = [ super init ]) 
    { 
     // Subscribe to the notification which will tell us when the keyboard is about to pop up: 
     [ [ NSNotificationCenter defaultCenter ] addObserver: self selector: @selector(keyboardWillShow:) name: UIKeyboardWillShowNotification object: nil ]; 
    } 

    return self; 
} 
#endif 
#ifdef HIDE_POST_DIALOG 
- (void) keyboardWillShow: (NSNotification *) note 
{ 
    // Dismiss the keyboard before it has had a chance to show up: 
    [ self.view endEditing: true ]; 
} 
#endif 
@end 

A moja Info.plist dla rozszerzenia jest

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> 
<plist version="1.0"> 
<dict> 
    <key>CFBundleDevelopmentRegion</key> 
    <string>en</string> 
    <key>CFBundleDisplayName</key> 
    <string>SAMPLESHARE</string> 
    <key>CFBundleExecutable</key> 
    <string>$(EXECUTABLE_NAME)</string> 
    <key>CFBundleIdentifier</key> 
    <string>com.org.SAMPLE.$(PRODUCT_NAME:rfc1034identifier)</string> 
    <key>CFBundleInfoDictionaryVersion</key> 
    <string>6.0</string> 
    <key>CFBundleName</key> 
    <string>$(PRODUCT_NAME)</string> 
    <key>CFBundlePackageType</key> 
    <string>XPC!</string> 
    <key>CFBundleShortVersionString</key> 
    <string>1.0</string> 
    <key>CFBundleSignature</key> 
    <string>????</string> 
    <key>CFBundleVersion</key> 
    <string>1</string> 
    <key>NSExtension</key> 
    <dict> 
     <key>NSExtensionAttributes</key> 
     <dict> 
     <key>NSExtensionActivationRule</key> 
     <dict> 
      <key>NSExtensionActivationSupportsImageWithMaxCount</key> 
      <integer>1</integer> 
     </dict> 
    </dict> 
     <key>NSExtensionMainStoryboard</key> 
     <string>MainInterface</string> 
     <key>NSExtensionPointIdentifier</key> 
     <string>com.apple.share-services</string> 
    </dict> 
</dict> 
</plist> 

mam w zasadzie stosować jakiś kod Commons License z internetu (podobno miejscu), który twierdzi, przeszedł proces sprawdzania sklepu z aplikacjami.

W kodzie są dwa obejścia, jeden to wywołanie OpenURL z rozszerzenia udziałów (co wydaje się, że od wyszukania SO nie jest normalnie możliwe bez obejścia w systemie iOS 8.3 i nowszych wersjach), a drugie to ukrycie tego wpisu dialog i klawiaturę, którą jabłko zapewnia domyślnie, gdy ktoś kliknie w udział. To działa.

Mam dwa pytania

1.) Will this be accepted on the app store? -- basically how are apps like facebook/whatsapp doing it and they are being accepted? 
2.) Whenever I run this, it says `NSExtensionActivationRule` if set to `TRUEPREDICATE` will be rejected in review, what should the value be? 

UPDATE:

Więc szorowania poprzez dokumentacji znalazłem poprawkę dla pytania 2 i zmienił to. Teraz wszystko działa, i nie ma żadnego TRUEPREDICATE, czy zostanie to zaakceptowane w sklepie, czy jest inny sposób na zrobienie tego?

UPDATE 2:

Mam teraz używany NSUserDefaults przekazać dane z rozszerzenia aplikacji, przypuszczam, że to również jeden wymóg udostępniania danych.

Answer 1

UPDATE

Aplikacja została przyjęta w przeglądzie z wykorzystaniem NSUSERDEFAULTS jako mechanizm przekazywania wiadomości. Oto kroki.

1.) Udział rozszerzenie:

#import "ShareViewController.h" 
#import <MobileCoreServices/UTCoreTypes.h> 
//Macro to hide post dialog or not, if defined, will be hidden, comment during debugging 
#define HIDE_POST_DIALOG 

@interface ShareViewController() 

@end 

@implementation ShareViewController 

NSUInteger m_inputItemCount = 0; // Keeps track of the number of attachments we have opened asynchronously. 
NSString * m_invokeArgs = NULL; // A string to be passed to your AIR app with information about the attachments. 
NSString * APP_SHARE_GROUP = @"group.com.schemename.nameofyourshareappgroup"; 
const NSString * APP_SHARE_URL_SCHEME = @"schemename"; 
CGFloat m_oldAlpha = 1.0; // Keeps the original transparency of the Post dialog for when we want to hide it. 

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

- (void) didSelectPost 
{ 
#ifdef HIDE_POST_DIALOG 
    return; 
#endif 

    [ self passSelectedItemsToApp ]; 
    // Note: This call is expected to be made here. Ignore it. We'll tell the host we are done after we've invoked the app. 
    // [ self.extensionContext completeRequestReturningItems: @[] completionHandler: nil ]; 
} 
- (void) addImagePathToArgumentList: (NSString *) imagePath 
{ 
    assert(NULL != imagePath); 

    // The list of arguments we will pass to the AIR app when we invoke it. 
    // It will be a comma-separated list of file paths: /path/to/image1.jpg,/path/to/image2.jpg 
    if (NULL == m_invokeArgs) 
    { 
     m_invokeArgs = imagePath; 
    } 
    else 
    { 
     m_invokeArgs = [ NSString stringWithFormat: @"%@,%@", m_invokeArgs, imagePath ]; 
    } 
} 

- (NSString *) saveImageToAppGroupFolder: (UIImage *) image 
           imageIndex: (int) imageIndex 
{ 
    assert(NULL != image); 

    NSData * jpegData = UIImageJPEGRepresentation(image, 1.0); 

    NSURL * containerURL = [ [ NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier: APP_SHARE_GROUP ]; 
    NSString * documentsPath = containerURL.path; 

    // Note that we aren't using massively unique names for the files in this example: 
    NSString * fileName = [ NSString stringWithFormat: @"image%d.jpg", imageIndex ]; 

    NSString * filePath = [ documentsPath stringByAppendingPathComponent: fileName ]; 
    [ jpegData writeToFile: filePath atomically: YES ]; 

    //Mahantesh -- Store image url to NSUserDefaults 

    NSUserDefaults *defaults=[[NSUserDefaults alloc] initWithSuiteName:@"group.com.schemename.nameofyourshareappgroup"]; 
    [defaults setObject:filePath forKey:@"url"]; 
    [defaults synchronize]; 

    return filePath; 
} 

- (void) passSelectedItemsToApp 
{ 
    NSExtensionItem * item = self.extensionContext.inputItems.firstObject; 

    // Reset the counter and the argument list for invoking the app: 
    m_invokeArgs = NULL; 
    m_inputItemCount = item.attachments.count; 

    // Iterate through the attached files 
    for (NSItemProvider * itemProvider in item.attachments) 
    { 
     // Check if we are sharing a Image 
     if ([ itemProvider hasItemConformingToTypeIdentifier: (NSString *) kUTTypeImage ]) 
     { 
      // Load it, so we can get the path to it 
      [ itemProvider loadItemForTypeIdentifier: (NSString *) kUTTypeImage 
              options: NULL 
            completionHandler:^(UIImage * image, NSError * error) 
      { 
       static int itemIdx = 0; 

       if (NULL != error) 
       { 
        NSLog(@"There was an error retrieving the attachments: %@", error); 
        return; 
       } 

       // The app won't be able to access the images by path directly in the Camera Roll folder, 
       // so we temporary copy them to a folder which both the extension and the app can access: 
       NSString * filePath = [ self saveImageToAppGroupFolder: image imageIndex: itemIdx ]; 

       // Now add the path to the list of arguments we'll pass to the app: 
       [ self addImagePathToArgumentList: filePath ]; 

       // If we have reached the last attachment, it's time to hand control to the app: 
       if (++itemIdx >= m_inputItemCount) 
       { 
        [ self invokeApp: m_invokeArgs ]; 
       } 
      } ]; 
     } 
    } 
} 
- (void) invokeApp: (NSString *) invokeArgs 
{ 
    // Prepare the URL request 
    // this will use the custom url scheme of your app 
    // and the paths to the photos you want to share: 
    NSString * urlString = [ NSString stringWithFormat: @"%@://%@", APP_SHARE_URL_SCHEME, (NULL == invokeArgs ? @"" : invokeArgs) ]; 
    NSURL * url = [ NSURL URLWithString: urlString ]; 

    NSString *className = @"UIApplication"; 
    if (NSClassFromString(className)) 
    { 
     id object = [ NSClassFromString(className) performSelector: @selector(sharedApplication) ]; 
     [ object performSelector: @selector(openURL:) withObject: url ]; 
    } 

    // Now let the host app know we are done, so that it unblocks its UI: 
    [ super didSelectPost ]; 
} 

#ifdef HIDE_POST_DIALOG 
- (NSArray *) configurationItems 
{ 
    // Comment out this whole function if you want the Post dialog to show. 
    [ self passSelectedItemsToApp ]; 

    // To add configuration options via table cells at the bottom of the sheet, return an array of SLComposeSheetConfigurationItem here. 
    return @[]; 
} 
#endif 


#ifdef HIDE_POST_DIALOG 
- (void) willMoveToParentViewController: (UIViewController *) parent 
{ 
    // This is called at the point where the Post dialog is about to be shown. 
    // Make it transparent, so we don't see it, but first remember how transparent it was originally: 

    m_oldAlpha = [ self.view alpha ]; 
    [ self.view setAlpha: 0.0 ]; 
} 
#endif 

#ifdef HIDE_POST_DIALOG 
- (void) didMoveToParentViewController: (UIViewController *) parent 
{ 
    // Restore the original transparency: 
    [ self.view setAlpha: m_oldAlpha ]; 
} 
#endif 
#ifdef HIDE_POST_DIALOG 
- (id) init 
{ 
    if (self = [ super init ]) 
    { 
     // Subscribe to the notification which will tell us when the keyboard is about to pop up: 
     [ [ NSNotificationCenter defaultCenter ] addObserver: self selector: @selector(keyboardWillShow:) name: UIKeyboardWillShowNotification object: nil ]; 
    } 

    return self; 
} 
#endif 
#ifdef HIDE_POST_DIALOG 
- (void) keyboardWillShow: (NSNotification *) note 
{ 
    // Dismiss the keyboard before it has had a chance to show up: 
    [ self.view endEditing: true ]; 
} 
#endif 
@end 

2. W metodzie OpenURL swojego delegata aplikacji

    //Slartibartfast -- For the case where we are opening app from an extension 
        NSString *STATIC_FILE_HANDLE = @"file://"; 
        //If app is opened from share extension, do the following 
        /* 
        1.) Get path of shared file from NSUserDefaults 
        2.) Get data from file and store in some variable 
        3.) Create a new accesible unique file path 
        4.) Dump data created into this file. 
        */ 
   
        NSUserDefaults *defaults=[[NSUserDefaults alloc] initWithSuiteName:YOURAPP_STATIC_APP_GROUP_NAME]; 
        NSString *path=nil; 
        if(defaults) 
        { 
         [defaults synchronize]; 
         path = [defaults stringForKey:@"url"]; 
        } 
   
        if(path.length != 0) 
        { 
         NSData *data; 
         //Get file path from url shared 
         NSString * newFilePathConverted = [STATIC_FILE_HANDLE stringByAppendingString:path]; 
         url = [ NSURL URLWithString: newFilePathConverted ]; 
         data = [NSData dataWithContentsOfURL:url]; 
         //Create a regular access path because this app cant preview a shared app group path 
         NSString *regularAccessPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0]; 
         NSString *uuid = [[NSUUID UUID] UUIDString]; 
         //Copy file to a jpg image(ignore extension, will convert from png) 
         NSString *uniqueFilePath= [ NSString stringWithFormat: @"/image%@.jpg", uuid]; 
         regularAccessPath = [regularAccessPath stringByAppendingString:uniqueFilePath]; 
         NSString * newFilePathConverted1 = [STATIC_FILE_HANDLE stringByAppendingString:regularAccessPath]; 
         url = [ NSURL URLWithString: newFilePathConverted1 ]; 
         //Dump existing shared file path data into newly created file. 
         [data writeToURL:url atomically:YES]; 
         //Reset NSUserDefaults to Nil once file is copied. 
         [defaults setObject:nil forKey:@"url"]; 
   
        } 
       //Do what you want 
       } 
   

Dzięki EasyNativeExtensions dla wskaźników

Answer 2

Twoje pytanie jest trochę pomieszane, ale jeśli chodzi o przekazywanie danych z jednej aplikacji do innej aplikacji masz świetne rozwiązanie dla tego, co jest UIPasteboard

Jeśli nie ma żadnego problemu dla skoków między aplikacjami używając niestandardowych procedur obsługi adresów URL, masz jeszcze 2 kroki.

Krok 1
W swojej pierwszej aplikacji, która jest odpowiedzialna za przekazywanie danych wdrożyć te metody, a następnie wywołać niestandardowy adres URL.

UIPasteboard *pasteboard = [UIPasteboard generalPasteboard]; 
[[UIPasteboard generalPasteboard] setImage:passImage]; 

Krok 2
W swojej docelowej widoku kontrolera proste wezwanie UIPasteboard ponownie i uzyskać z niego dane.

UIPasteboard *pasteboard = [UIPasteboard generalPasteboard]; 
    UIImage *getImage = pasteboard.image; 

Należy pamiętać, że mijamy UIImage i masz go w tym samym typie

Answer 3

1. Jeśli nie chcesz domyślny pokaz dialogowe z jabłkiem. Powinny być dziedziczone z UIViewController nie @interface ShareViewController: SLComposeServiceViewController
2. W dokumencie dla programistów Apple nie zezwalaj na otwarcie aplikacji rozszerzeń bezpośrednio z aplikacją zawierającą aplikację z wyjątkiem aplikacji rozszerzającej Dzisiaj.