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fix(docs) add docs about the default group

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Gabor Kiss-Vamosi 2021-06-01 19:43:54 +02:00
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docs/overview/indev.md
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@ -82,6 +82,12 @@ In *Edit* mode, `LV_KEY_NEXT/PREV` is usually used to edit the object.
Depending on the object's type, a short or long press of `LV_KEY_ENTER` changes back to *Navigate* mode.
Usually, an object which can not be pressed (like a [Slider](/widgets/core/slider)) leaves *Edit* mode on short click. But with objects where short click has meaning (e.g. [Button](/widgets/core/btn)), a long press is required.
#### Default group
Interactive widgets - such as buttons, checkboxes, sliders, etc - can be automatically added to a default group.
Just create a group with `lv_group_t * g = lv_group_create();` and set the default group with `lv_group_set_default(g);`
Don't forget to assign the input device(s) to the default group with ` lv_indev_set_group(my_indev, g);`.
### Styling
If an object is focused either by clicking it via touchpad, or focused via an encoder or keypad it goes to `LV_STATE_FOCUSED`. Hence focused styles will be applied on it.