The Droplets SDK includes three sample Droplets that you can read, build and run to get a good idea of how Droplets works. In addition, three example Custom Components exist which show you how to extend the Droplets Platform with new components that you write yourself.
Example Droplets
The example Droplets can be found in your Droplets SDK installation at DropletSdk2.0/java/examples. The example Droplets are:
| Droplet | Description |
| Hello World | Basic Droplets GUI with label and text |
| Subwindows | A button that triggers an event (the opening of a sub-window). |
| Currency Converter | Converts various world currencies into one another. |
Each example Droplet contains its own sub-directory, which includes the following folders:
| Folder | Contains |
| build | build.bat, which builds the Droplet |
| config | Contains .reg file which registers the Droplet with the Server |
| Droplets | File to run the Droplet as a standalone application (.drp) |
| src | Java source code |
| www | Contains files (if any) that the Droplet expects to find on the Web server. |
To run any of these example Droplets simply perform these four steps:
- Go to that example's build directory and run build.bat.
- Go to the example's config directory and run ExampleName.reg.
- Start your Droplets Server (in the Droplets Server home directory).
- Go to that example's Droplets directory and run the .drp file.
Example Custom Components
You can also see three example Custom Components within your Java examples directory. Please note that improved version of the Slider and Tabs components have been included as a part of the Droplets Java API; the custom versions are included here as illustrations of how to write custom components:
| Component Name | Description | Sample Code | Documentation |
| Countdown | Label that displays a number and begins visibly counting down upon a call from the Droplets UI Server. | Click here | Click here |
| Slider | A component that allows users to graphically select a value by sliding a knob within a bounded interval. | Click here | Click here |
| Tabs | A row of clickable notebook tabs. | Click here | Click here |
Before writing
your own custom components, consult the Droplets Java
API documentation on the CustomComponent
and ComponentAdapter
for specific information on constructors and methods for these two classes.
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