App:Library:LVGL:docs:Overview:Objects

https://docs.lvgl.io/8.2/overview/object.html

英文	自動翻訳

Objects

In LVGL the basic building blocks of a user interface are the objects, also called Widgets. For example a Button, Label, Image, List, Chart or Text area.

You can see all the Object types here.

All objects are referenced using an lv_obj_t pointer as a handle. This pointer can later be used to set or get the attributes of the object.

Attributes

Basic attributes

All object types share some basic attributes:

• Position
• Size
• Parent
• Styles
• Event handlers
• Etc

You can set/get these attributes with lv_obj_set_... and lv_obj_get_... functions. For example:

/*Set basic object attributes*/
lv_obj_set_size(btn1, 100, 50);	  /*Set a button's size*/
lv_obj_set_pos(btn1, 20,30);      /*Set a button's position*/ 

To see all the available functions visit the Base object's documentation.

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