I have working code (using python 3.9, kivy 2.1.0, kivymd 1.1.1) but cannot get it to set any of the colors that are supposed to be settable via KV keywords from the KivyMD Documentation.
I have tried: line_color_focus, background_color, disabled_foreground_color, foreground_color, hint_text_color, and selection_color. Are there any others to try? I am really trying to get the hint text and input text to be black or white depending on background color.
from kivy.lang import Builder
from kivy.metrics import dp
from kivy.properties import StringProperty
from kivymd.uix.list import OneLineIconListItem
from kivymd.app import MDApp
from kivymd.uix.menu import MDDropdownMenu
KV = '''
<IconListItem>
IconLeftWidget:
icon: root.icon
MDScreen:
MDTextField:
id: waveform
pos_hint: {'center_x': .3, 'center_y': .6}
size_hint_x: None
width: "250dp"
font_size: '25sp'
line_color_focus: 0, 0, 0, 1
required: True
hint_text: "Wave Form"
keyboard_mode: "managed"
on_focus: if self.focus: {app.open_menu(self, app.menu1), app.set_cust_labels()}
MDTextField:
id: freq1
input_filter: "float"
input_type: "number"
pos_hint: {'center_x': .3, 'center_y': .5}
size_hint_x: None
width: "250dp"
font_size: '25sp'
multiline: False
line_color_focus: 0, 0, 0, 1
required: True
hint_text: "Start Frequency in Hz"
helper_text: "Enter a number between .01 and 20000"
helper_text_mode: "persistent"
on_focus: if self.focus: app.set_cust_labels()
MDBoxLayout:
orientation: "horizontal"
pos_hint: {'center_x': .55, 'center_y': .2}
MDLabel:
id: waveform_text
valign: "center"
font_size: '25sp'
theme_text_color: "Primary"
MDLabel:
id: freq1_text
valign: "center"
font_size: '25sp'
theme_text_color: "Primary"
'''
class IconListItem(OneLineIconListItem):
icon = StringProperty()
class Test(MDApp):
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.screen = Builder.load_string(KV)
self.wf_list_items = ["Sine", "Rectangle", "Sawtooth", "Impulse", "Bemer"]
menu_items_wf = [
{
"viewclass": "IconListItem",
"icon": "account",
"height": dp(56),
"text": f"{self.wf_list_items[i]}",
"on_release": lambda x=i: self.set_item_waveform(f"{self.wf_list_items[x]}"),
} for i in range(5)]
self.menu1 = MDDropdownMenu(
items=menu_items_wf,
position="auto",
width_mult=3,
)
def set_item_waveform(self, text__item):
self.screen.ids.waveform.text = text__item
self.screen.ids.waveform.focus = False
self.menu1.dismiss()
def open_menu(self, textfield, menu):
textfield.focus = True
menu.width_mult = textfield.width / dp(55)
menu.max_height = dp(300)
menu.caller = textfield
menu.open()
textfield.focus = False
def set_cust_labels(self):
self.screen.ids.waveform_text.text = self.screen.ids.waveform.text
self.screen.ids.freq1_text.text = self.screen.ids.freq1.text
def build(self):
return self.screen
Test().run()
Does anyone have some suggestions on how to set text color to black? I have had no luck using any of the color settings in MDTextField.
line_color_focus: 0, 0, 0, 1 <- in code doesn't work
background_color: 0, 0, 0, 1
disabled_foreground_color: 0,0,0 1
foreground_color: 0, 0, 0, 1
hint_text_color: 0, 0, 0, 1
selection_color: 0, 0, 0, 1
Each of those do not seem to set any of the text items to black. Any reason why?
Have a look at the documentation. The attributes for text color are text_color_normal and text_color_focus. Similarly, for hint text: hint_text_color_normal and hint_text_color_focus. The kivymd docs are a good source of that sort of information.