如何从我的ios应用程序中的DropBox访问文档

Question

我正在尝试实施IOS应用程序。我的应用程序的需要是从DropBox应用程序（我的iphone有DropBox应用程序）访问文档（pdf，照片等）。我是iphone开发的新手，所以我不知道从DropBox访问文档。

如果有人知道请帮助我。提前致谢。

Answer 1

首先，您需要官方的Dropbox iOS SDK。接下来，您将需要一个应用程序密钥，您可以从Dropbox网站获取该应用程序密钥（选择MyApps）。您会注意到Dropbox iOS SDK附带了一个捆绑的演示应用程序，所以看看那里。此外，可以找到良好的入门教程here 要访问文件，您的代码将类似于：

 NSString* consumerKey; //fill your key
 NSString* consumerSecret ; //fill your secret
 DBSession* session = [[DBSession alloc] initWithConsumerKey:consumerKey 
       consumerSecret:consumerSecret];
 session.delegate = self;
 [DBSession setSharedSession:session];
 [session release];
 if (![[DBSession sharedSession] isLinked])
 {
        DBLoginController* controller = [[DBLoginController new] autorelease];
        controller.delegate = self;
        [controller presentFromController:self];
 }
 DBRestClient *rc = [[DBRestClient alloc] initWithSession:[DBSession sharedSession]];
 self.restClient = rc;
 [rc release];
 self.restClient.delegate = self;

 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
 NSString *documentsDirectory = [paths objectAtIndex:0];
 NSString *filePath = [documentsDirectory stringByAppendingPathComponent:@"SampleFile.txt"];
 [self.restClient loadFile:@"/example/SampleFile.txt" intoPath:filePath];

请注意，iOS Dropbox SDK需要iOS 4.2或更高版本。

Answer 2

您可以使用UIDocumentMenuViewController类来访问共享其文件的其他应用程序中的文件。您可以找到所有UTI's here

import MobileCoreServices

class ViewController: UIViewController, UITextFieldDelegate, UIDocumentPickerDelegate, UIDocumentMenuDelegate {
  override func viewDidLoad() {
    super.viewDidLoad()
  }


  @IBAction func handleImportPickerPressed(sender: AnyObject) {
    let documentPicker = UIDocumentMenuViewController(documentTypes: [kUTTypePDF as String], in: .import)
    documentPicker.delegate = self
    present(documentPicker, animated: true, completion: nil)
  }

  // MARK:- UIDocumentMenuDelegate
  func documentMenu(_ documentMenu: UIDocumentMenuViewController, didPickDocumentPicker documentPicker: UIDocumentPickerViewController) {
    documentPicker.delegate = self
    present(documentPicker, animated: true, completion: nil)
  }

  // MARK:- UIDocumentPickerDelegate
  func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentAt url: URL) {
    // Do something
    print("\(url)")
  }
}

您将看到这种用于选择文档的屏幕