官网：https://remi.readthedocs.io/en/latest/
""" This example shows the use of the following Widget methods:
Widget.append(widget, key) : to add child widgets in a container widget
Widget.remove_child(widget) : to remove a widget instance from a container widget
Widget.empty() : to remove all childrens from a container widget
"""
import remi.gui as gui
from remi import start, App
import os
class MyApp(App):
def main(self):
main_container = gui.VBox()
lbl = gui.Label("Press the buttons to add or remove labels")
bt_add = gui.Button("add a label", style={'margin': '3px'})
bt_add.onclick.do(self.on_add_a_label_pressed)
bt_remove = gui.Button("remove a label", style={'margin': '3px', 'background-color': 'orange'})
bt_remove.onclick.do(self.on_remove_a_label_pressed)
bt_empty = gui.Button("empty", style={'margin': '3px', 'background-color': 'red'})
bt_empty.onclick.do(self.on_empty_pressed)
self.lbls_container = gui.HBox()
main_container.append([lbl, bt_add, bt_remove, bt_empty, self.lbls_container])
# returning the root widget
return main_container
def on_add_a_label_pressed(self, emitter):
# I create a unique id for the new label that will be instantiated
key = str(len(self.lbls_container.children))
lbl = gui.Label("label id: " + key, style={'border': '1px solid gray', 'margin': '3px'})
self.lbls_container.append(lbl, key)
def on_remove_a_label_pressed(self, emitter):
# if there are no childrens, return
if len(self.lbls_container.children) < 1:
return
key = str(len(self.lbls_container.children) - 1)
self.lbls_container.remove_child(self.lbls_container.children[key])
def on_empty_pressed(self, emitter):
self.lbls_container.empty()
if __name__ == "__main__":
start(MyApp)执行效果：
