如何在iOS上分享Instagram上的图像？

Question

我的客户希望在Instagram,Twitter,Facebook上分享图像.

我已经完成了Twitter和Facebook,但没有在互联网上找到任何API或任何东西在Instagram上分享图像.可以在Instagram上分享图像吗？如果是的话怎么样？

当我查看Instagram的开发者网站时,我发现了Ruby on Rails和Python的Libraries.但是没有iOS Sdk的文档

我已根据instagram.com/developer从Instagram获取令牌,但现在不知道下一步与instagram图像共享该怎么做.

Answer 1

最后我得到了答案.你不能直接在Instagram上发布图像.您必须使用UIDocumentInteractionController重新编写图像.

@property (nonatomic, retain) UIDocumentInteractionController *dic;    

CGRect rect = CGRectMake(0 ,0 , 0, 0);
UIGraphicsBeginImageContextWithOptions(self.view.bounds.size, self.view.opaque, 0.0);
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIGraphicsEndImageContext();
NSString  *jpgPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/test.igo"];

NSURL *igImageHookFile = [[NSURL alloc] initWithString:[[NSString alloc] initWithFormat:@"file://%@", jpgPath]];
self.dic.UTI = @"com.instagram.photo";
self.dic = [self setupControllerWithURL:igImageHookFile usingDelegate:self];
self.dic=[UIDocumentInteractionController interactionControllerWithURL:igImageHookFile];
[self.dic presentOpenInMenuFromRect: rect    inView: self.view animated: YES ];


- (UIDocumentInteractionController *) setupControllerWithURL: (NSURL*) fileURL usingDelegate: (id <UIDocumentInteractionControllerDelegate>) interactionDelegate {
     UIDocumentInteractionController *interactionController = [UIDocumentInteractionController interactionControllerWithURL: fileURL];
     interactionController.delegate = interactionDelegate;
     return interactionController;
}

注意:一旦您重定向到Instagram应用程序,您将无法返回到您的应用程序.你必须再次打开你的应用程序

从这里下载源代码

Answer 2

这是一个完整的测试代码,上传图片+标题文字到Instagram ..

in.h文件

//Instagram
@property (nonatomic, retain) UIDocumentInteractionController *documentController;

-(void)instaGramWallPost
{
            NSURL *instagramURL = [NSURL URLWithString:@"instagram://app"];
            if([[UIApplication sharedApplication] canOpenURL:instagramURL]) //check for App is install or not
            {
                NSData *imageData = UIImagePNGRepresentation(imge); //convert image into .png format.
                NSFileManager *fileManager = [NSFileManager defaultManager];//create instance of NSFileManager
                NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); //create an array and store result of our search for the documents directory in it
                NSString *documentsDirectory = [paths objectAtIndex:0]; //create NSString object, that holds our exact path to the documents directory
                NSString *fullPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"insta.igo"]]; //add our image to the path
                [fileManager createFileAtPath:fullPath contents:imageData attributes:nil]; //finally save the path (image)
                NSLog(@"image saved");

                CGRect rect = CGRectMake(0 ,0 , 0, 0);
                UIGraphicsBeginImageContextWithOptions(self.view.bounds.size, self.view.opaque, 0.0);
                [self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
                UIGraphicsEndImageContext();
                NSString *fileNameToSave = [NSString stringWithFormat:@"Documents/insta.igo"];
                NSString  *jpgPath = [NSHomeDirectory() stringByAppendingPathComponent:fileNameToSave];
                NSLog(@"jpg path %@",jpgPath);
                NSString *newJpgPath = [NSString stringWithFormat:@"file://%@",jpgPath];
                NSLog(@"with File path %@",newJpgPath);
                NSURL *igImageHookFile = [[NSURL alloc]initFileURLWithPath:newJpgPath];
                NSLog(@"url Path %@",igImageHookFile);

                self.documentController.UTI = @"com.instagram.exclusivegram";
                self.documentController = [self setupControllerWithURL:igImageHookFile usingDelegate:self];
                self.documentController=[UIDocumentInteractionController interactionControllerWithURL:igImageHookFile];
                NSString *caption = @"#Your Text"; //settext as Default Caption
                self.documentController.annotation=[NSDictionary dictionaryWithObjectsAndKeys:[NSString stringWithFormat:@"%@",caption],@"InstagramCaption", nil];
                [self.documentController presentOpenInMenuFromRect:rect inView: self.view animated:YES];
            }
            else
            {
                 NSLog (@"Instagram not found");
            }
}

- (UIDocumentInteractionController *) setupControllerWithURL: (NSURL*) fileURL usingDelegate: (id <UIDocumentInteractionControllerDelegate>) interactionDelegate {
    NSLog(@"file url %@",fileURL);
    UIDocumentInteractionController *interactionController = [UIDocumentInteractionController interactionControllerWithURL: fileURL];
    interactionController.delegate = interactionDelegate;

    return interactionController;
}

要么

-(void)instaGramWallPost
{
    NSURL *myURL = [NSURL URLWithString:@"Your image url"];
    NSData * imageData = [[NSData alloc] initWithContentsOfURL:myURL];
    UIImage *imgShare = [[UIImage alloc] initWithData:imageData];

    NSURL *instagramURL = [NSURL URLWithString:@"instagram://app"];

    if([[UIApplication sharedApplication] canOpenURL:instagramURL]) //check for App is install or not
    {
        UIImage *imageToUse = imgShare;
        NSString *documentDirectory=[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
        NSString *saveImagePath=[documentDirectory stringByAppendingPathComponent:@"Image.igo"];
        NSData *imageData=UIImagePNGRepresentation(imageToUse);
        [imageData writeToFile:saveImagePath atomically:YES];
        NSURL *imageURL=[NSURL fileURLWithPath:saveImagePath];
        self.documentController=[[UIDocumentInteractionController alloc]init];
        self.documentController = [UIDocumentInteractionController interactionControllerWithURL:imageURL];
        self.documentController.delegate = self;
        self.documentController.annotation = [NSDictionary dictionaryWithObjectsAndKeys:[NSString stringWithFormat:@"Testing"], @"InstagramCaption", nil];
        self.documentController.UTI = @"com.instagram.exclusivegram";
        UIViewController *vc = [UIApplication sharedApplication].keyWindow.rootViewController;
        [self.documentController presentOpenInMenuFromRect:CGRectMake(1, 1, 1, 1) inView:vc.view animated:YES];
    }
    else {
        DisplayAlertWithTitle(@"Instagram not found", @"")
    }
}

并将此内容写入.plist

<key>LSApplicationQueriesSchemes</key>
    <array>
        <string>instagram</string>
    </array>

Answer 3

您可以使用Instagram网址提供的方案之一

1. Instagram的官方文档在这里

2. 与UIDocumentInteractionController共享

   final class InstagramPublisher : NSObject {
   
   private var documentsController:UIDocumentInteractionController = UIDocumentInteractionController()
   
   func postImage(image: UIImage, view: UIView, result:((Bool)->Void)? = nil) {
       guard let instagramURL = NSURL(string: "instagram://app") else {
           if let result = result {
               result(false)
           }
       return
   }
       if UIApplication.sharedApplication().canOpenURL(instagramURL) {
           let jpgPath = (NSTemporaryDirectory() as NSString).stringByAppendingPathComponent("instagrammFotoToShareName.igo")
           if let image = UIImageJPEGRepresentation(image, 1.0) {
               image.writeToFile(jpgPath, atomically: true)
               let fileURL = NSURL.fileURLWithPath(jpgPath)
               documentsController.URL = fileURL
               documentsController.UTI = "com.instagram.exclusivegram"
               documentsController.presentOpenInMenuFromRect(view.bounds, inView: view, animated: true)
               if let result = result {
                   result(true)
               }
           } else if let result = result {
               result(false)
           }
       } else {
           if let result = result {
               result(false)
           }
       }
       }
   }
   

3. 与直接重定向共享

   import Photos
   
   final class InstagramPublisher : NSObject {
   
   func postImage(image: UIImage, result:((Bool)->Void)? = nil) {
   guard let instagramURL = NSURL(string: "instagram://app") else {
       if let result = result {
           result(false)
       }
       return
   }
   
   let image = image.scaleImageWithAspectToWidth(640)
   
   do {
       try PHPhotoLibrary.sharedPhotoLibrary().performChangesAndWait {
           let request = PHAssetChangeRequest.creationRequestForAssetFromImage(image)
   
           let assetID = request.placeholderForCreatedAsset?.localIdentifier ?? ""
           let shareURL = "instagram://library?LocalIdentifier=" + assetID
   
           if UIApplication.sharedApplication().canOpenURL(instagramURL) {
               if let urlForRedirect = NSURL(string: shareURL) {
                   UIApplication.sharedApplication().openURL(urlForRedirect)
               }
           }
       }
   } catch {
       if let result = result {
           result(false)
       }
   }
   }
   }
   

4. 将照片大小调整为建议大小的扩展名

   import UIKit
   
   extension UIImage {
       // MARK: - UIImage+Resize
   
       func scaleImageWithAspectToWidth(toWidth:CGFloat) -> UIImage {
           let oldWidth:CGFloat = size.width
           let scaleFactor:CGFloat = toWidth / oldWidth
   
           let newHeight = self.size.height * scaleFactor
           let newWidth = oldWidth * scaleFactor;
   
           UIGraphicsBeginImageContext(CGSizeMake(newWidth, newHeight))
           drawInRect(CGRectMake(0, 0, newWidth, newHeight))
           let newImage = UIGraphicsGetImageFromCurrentImageContext()
           UIGraphicsEndImageContext()
           return newImage
       }
   }
   

5. 不要忘记在plist中添加所需的方案

  <key>LSApplicationQueriesSchemes</key>
  <array>
       <string>instagram</string> 
  </array>

Answer 4

希望这个答案能解决您的疑问.这将直接在Instagram中打开库文件夹而不是Camera.

NSURL *instagramURL = [NSURL URLWithString:@"instagram://app"];
if ([[UIApplication sharedApplication] canOpenURL:instagramURL])
{
    NSURL *videoFilePath = [NSURL URLWithString:[NSString stringWithFormat:@"%@",[request downloadDestinationPath]]]; // Your local path to the video
    NSString *caption = @"Some Preloaded Caption";
    ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
    [library writeVideoAtPathToSavedPhotosAlbum:videoFilePath completionBlock:^(NSURL *assetURL, NSError *error) {
        NSString *escapedString   = [self urlencodedString:videoFilePath.absoluteString];
        NSString *escapedCaption  = [self urlencodedString:caption];
        NSURL *instagramURL = [NSURL URLWithString:[NSString stringWithFormat:@"instagram://library?AssetPath=%@&InstagramCaption=%@",escapedString,escapedCaption]];
        if ([[UIApplication sharedApplication] canOpenURL:instagramURL]) {
            [[UIApplication sharedApplication] openURL:instagramURL];
        }
    }];

Answer 5

对于iOS 6及更高版本,您可以使用此UIActivity将图像上传到Instagram,它使用iOS挂钩具有相同的工作流程,但简化了开发:

https://github.com/coryalder/DMActivityInstagram

Answer 6

如果您不想使用UIDocumentInteractionController

import Photos

...

func postImageToInstagram(image: UIImage) {
        UIImageWriteToSavedPhotosAlbum(image, self, #selector(SocialShare.image(_:didFinishSavingWithError:contextInfo:)), nil)
    }
    func image(image: UIImage, didFinishSavingWithError error: NSError?, contextInfo:UnsafePointer<Void>) {
        if error != nil {
            print(error)
        }

        let fetchOptions = PHFetchOptions()
        fetchOptions.sortDescriptors = [NSSortDescriptor(key: "creationDate", ascending: false)]
        let fetchResult = PHAsset.fetchAssetsWithMediaType(.Image, options: fetchOptions)
        if let lastAsset = fetchResult.firstObject as? PHAsset {
            let localIdentifier = lastAsset.localIdentifier
            let u = "instagram://library?LocalIdentifier=" + localIdentifier
            let url = NSURL(string: u)!
            if UIApplication.sharedApplication().canOpenURL(url) {
                UIApplication.sharedApplication().openURL(NSURL(string: u)!)
            } else {
                let alertController = UIAlertController(title: "Error", message: "Instagram is not installed", preferredStyle: .Alert)
                alertController.addAction(UIAlertAction(title: "OK", style: .Default, handler: nil))
                self.presentViewController(alertController, animated: true, completion: nil)
            }

        }
    }

Answer 7

这是我用细节实现的正确答案.在.h文件中

 UIImageView *imageMain;
 @property (nonatomic, strong) UIDocumentInteractionController *documentController;

in.m文件只写

 NSURL *instagramURL = [NSURL URLWithString:@"instagram://app"];
 if([[UIApplication sharedApplication] canOpenURL:instagramURL])
 {
      CGFloat cropVal = (imageMain.image.size.height > imageMain.image.size.width ? imageMain.image.size.width : imageMain.image.size.height);

      cropVal *= [imageMain.image scale];

      CGRect cropRect = (CGRect){.size.height = cropVal, .size.width = cropVal};
      CGImageRef imageRef = CGImageCreateWithImageInRect([imageMain.image CGImage], cropRect);

      NSData *imageData = UIImageJPEGRepresentation([UIImage imageWithCGImage:imageRef], 1.0);
      CGImageRelease(imageRef);

      NSString *writePath = [NSTemporaryDirectory() stringByAppendingPathComponent:@"instagram.igo"];
      if (![imageData writeToFile:writePath atomically:YES]) {
      // failure
           NSLog(@"image save failed to path %@", writePath);
           return;
      } else {
      // success.
      }

      // send it to instagram.
      NSURL *fileURL = [NSURL fileURLWithPath:writePath];
      self.documentController = [UIDocumentInteractionController interactionControllerWithURL:fileURL];
      self.documentController.delegate = self;
      [self.documentController setUTI:@"com.instagram.exclusivegram"];
      [self.documentController setAnnotation:@{@"InstagramCaption" : @"We are making fun"}];
      [self.documentController presentOpenInMenuFromRect:CGRectMake(0, 0, 320, 480) inView:self.view animated:YES];
 }
 else
 {
      NSLog (@"Instagram not found");

 }

肯定会得到结果.例如,你会看到从底部的popover与instagram图像.点击它,玩得开心.

Answer 8

我在我的应用程序中尝试了这个并且它工作正常(Swift)

import Foundation

import UIKit

class InstagramManager: NSObject, UIDocumentInteractionControllerDelegate {

    private let kInstagramURL = "instagram://"
    private let kUTI = "com.instagram.exclusivegram"
    private let kfileNameExtension = "instagram.igo"
    private let kAlertViewTitle = "Error"
    private let kAlertViewMessage = "Please install the Instagram application"

    var documentInteractionController = UIDocumentInteractionController()

    // singleton manager
    class var sharedManager: InstagramManager {
        struct Singleton {
            static let instance = InstagramManager()
        }
        return Singleton.instance
    }

    func postImageToInstagramWithCaption(imageInstagram: UIImage, instagramCaption: String, view: UIView) {
        // called to post image with caption to the instagram application

        let instagramURL = NSURL(string: kInstagramURL)
        if UIApplication.sharedApplication().canOpenURL(instagramURL!) {
            let jpgPath = (NSTemporaryDirectory() as NSString).stringByAppendingPathComponent(kfileNameExtension)
            UIImageJPEGRepresentation(imageInstagram, 1.0)!.writeToFile(jpgPath, atomically: true)
            let rect = CGRectMake(0,0,612,612)
            let fileURL = NSURL.fileURLWithPath(jpgPath)
            documentInteractionController.URL = fileURL
            documentInteractionController.delegate = self
            documentInteractionController.UTI = kUTI

            // adding caption for the image
            documentInteractionController.annotation = ["InstagramCaption": instagramCaption]
            documentInteractionController.presentOpenInMenuFromRect(rect, inView: view, animated: true)
        }
        else {

            // alert displayed when the instagram application is not available in the device
            UIAlertView(title: kAlertViewTitle, message: kAlertViewMessage, delegate:nil, cancelButtonTitle:"Ok").show()
        }
    }
}


 func sendToInstagram(){

     let image = postImage

             InstagramManager.sharedManager.postImageToInstagramWithCaption(image!, instagramCaption: "\(description)", view: self.view)

 }