Skip to main content
Version: ver. 1.3.1

Events and Actions

Adding events, you can create different interactions to widgets, for instance change the screen, play an animation, etc. by pressing a button.

Add Event​

At the bottom of the Inspector Panel, you can find the ADD EVENT button. Firstly, you should name the event, then choose a trigger to start it.

  • Event name - The name of the event

  • Event Trigger - The interaction of event start

    • Pressed - An object has been pressed
    • Clicked - An object was pressed for a short period of time, then released. Not called if scrolled
    • Long pressed - An object has been pressed for a longer period of time
    • Long pressed repeat - Called after long_press_time in every long_press_repeat_time ms. Not called if scrolled
    • Focused - An object is focused
    • Defocused - An object is unfocused
    • Value changed - The value of the object has been changed.
    • Ready - A process has finished
    • Cancel - A process has been cancelled
    • Screen loaded - A screen was loaded, called when all animations are finished
    • Screen unloaded - A screen was unloaded, called when all animations are finished
    • Screen load start - A screen load started, fired when the screen change delay is expired
    • Screen unload start - A screen unload started, fired immediately when lv_scr_load/lv_scr_load_anim is called
    • Checked - The widget is checked 
    • Unchecked - The widget is unchecked
    • Gesture - A gesture is detected on a widget with the selected direction
    • Short clicked - short click is detected
    • Key - A key is sent to the widget

Add Action​

Having added an interaction, you should add an action to be done.

  • Action name - The name of the action
  • Action type - The type of the action

Actions​

Actions are those elements of the event, which start when trigger happen.

Call function​

Using the Call function action, you can add a function name that the event can refer to. This function will be created into the ui__events.c or ui_events.py file during the exporting process.

Change Screen​

You can change among screens with this action.

  • Screen to - The screen you would like to change to
  • Fade mode - The animation during changing the screen
  • Speed - The speed of changing the screen
  • Delay - The delay of changing the screen

Increment Arc​

You can modify the value of the Arc Widget.

  • Target - Target Arc Widget.
  • Value - The value of increase / decrease

Increment Bar​

You can modify the value of the Bar Widget.

  • Target - Target Bar Widget
  • Value - The value of increase / decrease
  • Animate - The animation time of value change

Increment Slider​

You can modify the value of the Slider Widget.

  • Target - Target Slider Widget.
  • Value - Value of increase / decrease.
  • Animate - The animation time of value change

Modify Flag​

You can modify the flag state of a widget.

  • Object - The target object
  • Flags - The defined flag to be changed
  • Action - The action to be used
    • Add - Add a flag
    • Remove - Remove a flag
    • Toggle - Use a flag from another state

Play Animation​

You can play the animations created in the Animation Panel.

  • Animation - The selected animation
  • Target - Target widget you would like to use the animation on
  • Delay - The delay time of the animation

Set Opacity​

The opacity of the selected widget.

  • Target - The target widget.
  • Value - The value of opacity.

Set Flag​

Set the value for the flag state of the widget.

  • Object - The target object.
  • Flag - The flag to be used.
  • Value - The value of the flag state.

Set Property​

Change the property value of the widget.

  • Target - The target object.
  • Property - The parameter to be changed.
  • Value - The value of the property.

Set text value from arc​

Display the Arc Widget value on a Label Widget by using this action.

  • Target - The Label widget to display the value on
  • Source - The Arc widget value to be displayed
  • Prefix - The text before the value on the Label widget
  • Postfix - The text after the value on the Label widget

Set text value from slider​

Display the Slider Widget value on a Label Widget by using this action.

  • Target - The Label widget to display the value on
  • Source - The Slider widget value to be displayed
  • Prefix - The text before the value on the Label widget
  • Postfix - The text after the value on the Label widget

Set text value when checked​

Change the text of a Label Widget depending on the checked or unchecked state of the target object.

  • Target - The Label widget to display the text on
  • Source - The state of the target widget
  • On text - The text in checked state
  • Of text - The text in unchecked state

Delete screen​

Delete the selected screen.

  • Screen - The screen you want to delete

Step spinbox​

Increment or decrement the value of the selected spinbox.

  • Target - The spinbox you want to change
  • Direction - You can choose to increase or decrease the value