Getting Started Using the DropboxSDK for iOS:

Requirements:
1. You need the 4.0 version of the iPhone SDK. The version of your XCode should
   be at least 3.2.3.
2. You need to have registered as a Dropbox application with mobile access at 
   http://dropbox.com/developers. You should have a consumer key and secret.

Step 1: Building and using the example app
1. Open the project file in examples/DBRoulette/DBRoulette.xcodeproj
2. Fill in the values for consumerKey and consumerSecret in 
   DBRouletteAppDelegate.m application:didFinishLaunchingWithOptions:
3. Make sure the build is set to Simulator. This setting should be near
   the top-left corner of XCode.
4. Build and Run app
5. Once running, make sure you can use the app to login and view photos in your
   Photos Dropbox folder without getting errors.

If you cannot run the app without getting errors, make sure your consumer key
and consumer token are correct. Also make sure that your app has been
approved by Dropbox for mobile access.


Step 2: Adding DropboxSDK to your project
1. Open your project in XCode
2. Right-click on your project in the group tree in the left pane
3. Select Add -> Existing Files...
4. Navigate to where you uncompressed the Dropbox SDK and select the DropboxSDK
   subfolder
5. Select "Copy items into destination group's folder"
6. Make sure "Recursively create groups for any added folders" is selected
7. Press Add button
8. Find the Frameworks folder in your app's group tree in the left pane
9. Make sure the framework Security.framework is added to your project
10. If not, right-click on Frameworks and select Add -> Existing Frameworks...
11. Select Security.framework from the list and select Add
12. Build your application. At this point you should have no build failures or
    warnings


Step 3: Login successfully in your app
1. In your application delegate's application:didFinishLaunchingWithOptions:
   method, add the following code:

    DBSession* dbSession = 
        [[[DBSession alloc]
          initWithConsumerKey:@"<YOUR CONSUMER KEY>"
          consumerSecret:@"<YOUR CONSUMER SECRET>"]
         autorelease];
    [DBSession setSharedSession:dbSession];

   Note: you will need to #import "DropboxSDK.h" at the top of this file

2. Somewhere in your app, add an event to launch the login controller, which
   should look something like this:

   - (void)didPressLink {
       DBLoginController* controller = [[DBLoginController new] autorelease];
       [controller presentFromController:self];
   }

   Note: you will need to #import "DropboxSDK.h" at the top of this file

3. Build and run your app
4. Find your link button in your app and press it
5. Go through the login flow. If you are able to login successfully without any
   errors you have successfully added the SDK to your project.

Step 4: Using DBRestClient
The DBRestClient is the way to make API calls from your application once the
user has logged in. For a real example of how to use this object look at 
PhotoViewController.m in examples/DBRoulette/Classes. In general, to make api 
calls from an object you will do the following:
1. Add a DBRestClient* instance variable in your object's .h file:
   
   DBRestClient* restClient;

   Note: you will need to #import "DropboxSDK.h" at the top of this file

2. Create a getter method to allocate and initialize the restClient:

   - (DBRestClient*)restClient {
      if (!restClient) {
         restClient = 
            [[DBRestClient alloc] initWithSession:[DBSession sharedSession]];
         restClient.delegate = self;
      }
      return restClient;
   }

3. Make an request on the rest client:

   [[self restClient] loadMetadata:@"/"];

3. Implement the DBRestClientDelegate methods needed to get the results of the
   particular call you made:

   - (void)restClient:(DBRestClient*)client 
       loadedMetadata:(DBMetadata*)metadata {

       NSLog(@"Loaded metadata!");
   }

   - (void)restClient:(DBRestClient*)client 
       metadataUnchangedAtPath:(NSString*)path {

       NSLog(@"Metadata unchanged!");
   }

   - (void)restClient:(DBRestClient*)client 
       loadMetadataFailedWithError:(NSError*)error {

       NSLog(@"Error loading metadata: %@", error);
   }

4. Populate the delegate methods with appropriate handling
5. Refer to examples/DBRoulette/Classes/PhotoViewController.m for a more
   comprehensive example of using DBRestClient