I'm working with KivyMD. The UI is so slow. Animations are so slow and often stuck. Even in the Kitchen Sink example. Although it's fine on my Windows and Linux. The problem is after building package for android.
This is exactly my question and the answer given by developer:
https://github.com/HeaTTheatR/KivyMD/issues/77
Unfortunately it didn't help and UI is slow
main.py:
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import Screen,ScreenManager
from kivy.uix.boxlayout import BoxLayout
from kivy.core.window import Window
from kivy.properties import StringProperty
from kivymd.theming import ThemeManager
from kivymd.utils.cropimage import crop_image
from kivymd.tabs import MDTabs,MDTabsBase
from kivymd.button import MDTextButton
class Scr_Mng(ScreenManager):
pass
################################
class MainPage(Screen):
def __init__(self, **kwargs):
super(MainPage, self).__init__(**kwargs)
Window_width, window_height = Window.size
background_size = (int(Window_width),int(window_height))
#crop_image(background_size , "bg.jpg" , "bg_croped.jpg" )
##############################
class Ask_tab(MDTabsBase):
profile_pic = StringProperty('assets/bg.jpg')
profile_name = StringProperty('Sina')
def new_question(self,question):
print(question)
##############################
class Answer_tab(MDTabsBase):
def load_questions(self):
for x in range(20):
self.ids.question_items_box.add_widget( Question_items() )
##############################
class Question_items(BoxLayout):
pass
##############################
class Me_tab(MDTabsBase):
pass
##############################
class Myapp(App):
theme_cls = ThemeManager()
theme_cls.primary_palette = 'DeepPurple'
title = "Navigation Drawer"
theme_cls.theme_style = "Light"
mainpage_title = "Ask/Answer"
def build(self):
return Scr_Mng()
Myapp().run()
kv file:
#:import MDToolbar kivymd.toolbar.MDToolbar
#:import MDTabs kivymd.tabs.MDTabs
#:import MDLabel kivymd.label.MDLabel
#:import MDTextField kivymd.textfields.MDTextField
#:import MDTextFieldRound kivymd.textfields.MDTextFieldRound
#:import MDRoundFlatButton kivymd.button.MDRoundFlatButton
#:import MDCard kivymd.cards.MDCard
<Scr_Mng>:
MainPage:
<Ask_tab>:
text: 'Ask'
FloatLayout:
size: root.width, root.height
ScrollView:
BoxLayout:
orientation: 'vertical'
size_hint_y: None
height: self.minimum_height
padding: dp(48)
spacing: dp(15)
BoxLayout:
size_hint: None,None
size: root.width*0.2,root.width*0.2
pos_hint: {'center_x': .5}
canvas.before:
Color:
rgba: 1,1,1,1
Ellipse:
pos: self.pos
size: self.size
source: 'assets/unknown.jpg'
MDLabel:
pos_hint: {'center_x': .5 }
size_hint: 1, None
height: root.width*0.1
text: root.profile_name
text_size: self.size
halign: 'center'
font_style: 'H6'
MDTextField:
id: question_field
pos_hint: {'center_x': .5 }
size_hint_x: 0.8
multiline: True
hint_text: "What question is in your mind?"
helper_text: ""
helper_text_mode: "persistent"
max_text_length: 1000
MDRoundFlatButton:
text: "Post"
icon: "login"
pos_hint: {'center_x': .5}
width: 170
on_release: root.new_question(question_field.text)
<Answer_tab>:
text: 'Answer'
on_kv_post: root.load_questions()
FloatLayout:
size: root.width, root.height
ScrollView:
BoxLayout:
id: question_items_box
orientation: 'vertical'
size_hint_y: None
height: self.minimum_height
padding: dp(15)
spacing: dp(15)
<Question_items>:
orientation: 'vertical'
spacing: dp(15)
size_hint: 1,None
height: 300
pos_hint: {'center_x': .5}
BoxLayout:
canvas.before:
Color:
rgba: 0.3,0.5,0.2,1
Rectangle:
pos: self.pos
size: self.size
MDSeparator:
<Me_tab>:
text: 'Me'
<MainPage>:
name: 'main'
# on_kv_post: root.load_main_tabs()
BoxLayout:
orientation: 'vertical'
MDToolbar:
id: toolbar
title: app.mainpage_title
md_bg_color: app.theme_cls.primary_color
background_palette: 'Primary'
background_hue: '500'
elevation: 10
right_action_items:
[['dots-vertical', lambda x: None]]
MDTabs:
id: main_tabs
Ask_tab:
Answer_tab:
Me_tab:
