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ToDo Lists

ToDo Lists is a Nokia Developer example application demonstrating how to use the Qt Quick Components. ToDo Lists allows the user to maintain and track tasks in three different categories, set due dates for the tasks, and sort the tasks.

This example application is hosted in Nokia Developer Projects:

This example application demonstrates:

  • Qt Quick Components
  • A custom-implemented "list model" with sorting ability
  • Events Feed support on Harmattan platform to show due tasks on events feed
  • Keyboard support for Nokia E6, E7 and Qt Simulator

For more information on implementation and porting, visit the project's wiki pages:

What's new in 1.2

  • Tabs replaced by a header in create and edit views
  • Removing items is now easier

1. Usage

The application uses Qt Quick Components wherever possible. The tab-like navigation is built using a TabGroup that holds PageStack elements.

The tasks list is a regular ListView that uses a custom TaskModel. The TaskModel is implemented with Qt / C++ and it provides adding, removing and moving list items in the model. The model also handles storing and loading model data to files.

The DatePicker is a custom QML element for selecting the due date. The dates are shown by updating the texts of the ListModel's items when the user moves the view back and forth. This way the the DatePicker gives an illusion of an "infinite" amount of dates performing very quickly.

2. Prerequisites

  • Qt basics
  • Qt Quick basics

3. Project structure and implementation

3.1 Folders

| The root folder contains the licence information and | this file (release notes). | |- bin Contains the compiled binaries. | |- doc Contains documents and graphics projects that were used | during the development of the application. | |- src Contains the subdirs project file to build the | Harmattan version of the app. | |- todolists Contains the ToDo Lists application project. | | | |- icons Contains the application icons. | | | |- qml Root folder for QML and JavaScript files. | | | |- common Common, cross-platform QML and JavaScript files. | | | |- harmattan MeeGo 1.2 Harmattan-specific QML and JavaScript files. | | | |- images Graphics used in the QML files. | | | |- symbian Symbian-specific QML and JavaScript files. | |- todolists-events-feed-client | | Contains the SyncFW plugin project, only for Harmattan. | | | |- settings Contains the configuration to show ToDo Lists settings | | in Harmattan's platform settings menu. | | | |- xml Holds various configuration files to setup the SyncFW | plugin. | |- qtc_packaging Contains the MeeGo 1.2 Harmattan (Debian) packaging files.

3.3 Used APIs/QML elements/Qt Quick Components

The application uses the following Qt Quick Components' QML elements.

  • Menu
  • SelectionListItem
  • TabBar
  • TabGroup

The application uses a custom TaskModel to hold the task data. This allows sorting task data and serialising data to the file.

4. Compatibility

  • Symbian devices with Qt 4.7.4 or higher.

Tested to work on Nokia C7-00, Nokia N8-00, Nokia E6-00, and Nokia N9. Developed with Qt SDK 1.2.

4.1 Required capabilities

None; the application can be self-signed on Symbian.

4.2 Known issues

In order to build Symbian Smart Installer packages the SUBDIRS project will not work. As a work around open and compile the src/todolists/ directly.

5. Building, installing, and running the application

5.1 Preparations

Check that you have the latest Qt SDK installed in the development environment and the latest Qt version on the device.

Qt Quick Components 1.1 or higher is required.

5.2 Using the Qt SDK

You can install and run the application on the device using the Qt SDK. Open the project in the SDK, set up the correct target (depending on the device platform), and click the Run button. For more details about this approach, visit the Qt Getting Started section at Nokia Developer (

5.3 Symbian device

Make sure your device is connected to your computer. Locate the .sis installation file and open it with Ovi Suite. Accept all requests from Nokia Suite and the device. Note that you can also install the application by copying the installation file onto your device and opening it with the Symbian File Manager application.

After the application is installed, locate the application icon from the application menu and launch the application by tapping the icon.

5.4 Nokia N9 and Nokia N950

Copy the application Debian package onto the device. Locate the file with the device and run it; this will install the application. Note that you can also use the terminal application and install the application by typing the command 'dpkg -i todolists_v1_0_harmattan.deb' on the command line. To install the application using the terminal application, make sure you have the right privileges to do so (e.g. root access).

Once the application is installed, locate the application icon from the application menu and launch the application by tapping the icon.

6. Licence

See the licence text file delivered with this project. The licence file is also available online at

7. Related documentation

Qt Quick Components

8. Version history

1.2 Minor UX improvements. 1.1 Support for Events Feed API on Harmattan, and keyboard on Symbian. 1.0 Initial version.