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Flutter Joystick is a virtual joystick package for Flutter applications that provides interactive joystick components for user interface design.
The Joystick widget is a virtual joystick that allows users to drag a stick within a defined area.
You can customize its behavior and appearance. Here's how you can use it:
Joystick(listener: (details) {
...
})
Joystick Arguments:
| Parameter | Description |
|---|---|
listener |
A callback function that is invoked at a specified frequency (period) when the joystick stick is dragged. The listener parameter, details, provides the stick's offset from the center of the base (ranging from -1.0 to +1.0). |
period |
(Optional) The frequency at which the listener callback is triggered from the moment the stick is dragged. The default is 100 milliseconds. |
mode |
(Optional) The possible direction mode of the joystick stick. The default mode is all, allowing movement in any direction: vertical, horizontal, and diagonal. |
This information clarifies the purpose and usage of each parameter for the Joystick widget.
| Mode | Description |
|---|---|
all |
Allows movement of the joystick stick in any direction: vertical, horizontal, and diagonal. |
vertical |
Restricts movement of the joystick stick to the vertical direction only. |
horizontal |
Restricts movement of the joystick stick to the horizontal direction only. |
horizontalAndVertical |
Restricts movement of the joystick stick to both horizontal and vertical directions, but not diagonal. |
These modes define how the joystick stick can be moved, providing flexibility in tailoring the joystick's behavior to specific requirements.
The JoystickArea widget allows you to render a joystick anywhere within a designated area when the
user interacts with it. It shares similar properties with the Joystick widget.
JoystickArea(
listener: (details) {
...
},
child: ...
)
Additional JoystickArea Arguments:
| Parameter | Description |
|---|---|
initialJoystickAlignment |
(Optional) Sets the initial alignment of the joystick within the joystick area. By default, it is aligned to Alignment.bottomCenter. |
child |
(Optional) The widget that is contained within the joystick area, allowing you to place other elements or widgets alongside the joystick. |
These arguments provide additional customization options for the JoystickArea widget, allowing you
to control the initial alignment and include child widgets for a more versatile user interface.
Customization Options:
Both the Joystick and JoystickArea widgets offer a range of customization options, allowing you
to personalize their appearance and behavior to suit your specific requirements.
| Parameter | Description |
|---|---|
base |
(Optional) The widget responsible for rendering the joystick's base. The default is JoystickBase. |
stick |
(Optional) The widget that defines the appearance of the joystick stick. It is centered within the base widget. The default is JoystickStick. |
stickOffsetCalculator |
(Optional) Determines the stick's offset based on the starting position of the stick drag and its current position. The package currently supports circle and rectangle joystick shapes. The default is CircleStickOffsetCalculator. |
These customization parameters empower you to create distinctive and unique joystick experiences for your Flutter applications.
If you find this package helpful and want to support the developer, consider making a donation:
Your contributions are greatly appreciated and motivate further development of plugins and packages.
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