A framework for reading and displaying contents of Usbong Trees
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License GitHub Release

UsbongKit is a framework that contains the main components for Usbong.


  • Add documentation
  • CocoaPods support

Running the Example App

  • Make sure you have carthage installed

  • Run carthage bootstrap --platform iOS in the project

    For example, UsbongKit is located in ~/Developer/Usbong/UsbongKit. Therefore, I navigate to the folder in the terminal using "cd" command, and then, run "carthage update" or "carthage update --platform iOS" (specifying the platform will make the update finish faster, since it will only build the frameworks for iOS). Once all dependencies have been downloaded and built, the UsbongKit example app should now be able to be built and run in a simulator or an iOS device.

  • Build and run the UsbongKit-example target


You can integrate UsbongKit in your project in 3 different ways:

1. Carthage (Recommended)

  1. Add github "usbong/UsbongKit" in your Cartfile
  2. Run carthage update --platform iOS in your project directory
  3. Follow Carthage instructions to add frameworks in your project

2. Project

  1. Drag-and-drop UsbongKit.xcodeproj as sub-project
  2. Run carthage update --platform iOS in UsbongKit folder to fetch dependencies
  3. Link UsbongKit.framework in your project

3. Embed Framework

  1. Run carthage update --platform iOS in UsbongKit folder to fetch dependencies
  2. Build UsbongKit framework
  3. Embed UsbongKit.framework in your project

View utree

To view a utree file, import the framework, import UsbongKit, then add this code in your app:

// parentViewController is the controller which will present the Usbong tree viewer
// treeURL is the URL for the compressed .utree
Usbong.presentViewer(onViewController: parentViewController, withUtreeURL: treeURL)

Extend UsbongKit

The documentation for extending UsbongKit can be found here.


Copyright 2016 Usbong Social Systems, Inc.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at


Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.