no bar on MDScrollView in kivyMD - scrollview

Question

i have a label that prints out data and it needs to be scrollable.
so it scrolls now but it does not have a scroll bar and the text bounces back to top once you release it.I have tried adding bar_width: 10 changed nothing.
from kivy.lang import Builder
from kivymd.uix.scrollview import MDScrollView
from kivy.properties import StringProperty, ObjectProperty
from kivymd.uix.pickers import MDDatePicker
from kivymd.app import MDApp
import json
KV = '''
MDScreenManager:
MDScreen:
name: "main"
MDGridLayout:
cols: 1
MDRaisedButton:
font_size: "32sp"
text: "Enter payments"
pos_hint: {"y": .2, "center_x" : .5}
size_hint: 1, 1
on_release:
root.current = "enter"
MDRaisedButton:
font_size: "32sp"
text: "Check payments"
pos_hint: {"y": .6, "center_x" : .5}
size_hint: 1, 1
on_release:
root.current = "view"
MDScreen:
#----------------------------------------------------------------------------------------------------------------------
name: "enter"
MDFloatLayout:
MDLabel:
text: "Date"
pos_hint: {"x" : 0, "center_y" : .9}
size_hint: None, None
MDIconButton:
icon: "calendar"
pos_hint: {"center_x": .3, "center_y": .9}
on_release: app.show_date_picker()
MDTextField:
id: date
helper_text: "Enter a valid date yyyy/mm/dd "
date_format: 'yyyy/mm/dd'
validator: "date"
hint_text: "Enter date"
pos_hint: {"center_x" : 0.9, "center_y" : .9}
text: ""
MDLabel:
text: "Case id"
pos_hint: {"x": 0, "center_y": .8}
MDTextField:
id: case_id
hint_text: "Enter case id"
pos_hint: {"center_x": .9, "center_y": .8}
MDLabel:
text: "Payment type"
size_hint: 1, None
pos_hint: {"x": 0, "center_y": .7}
MDTextField:
id: payment_type
hint_text: "Payment type"
pos_hint: {"center_x": .9, "center_y": .7}
MDLabel:
text: "Amount"
pos_hint: {"x" : 0, "center_y": .6}
MDSwitch:
pos_hint: {"center_y" : 0.6, "center_x" : 0.3}
on_active: app.on_checkbox_active(*args)
MDTextField:
id: amount
hint_text: "Enter amount"
pos_hint: {"center_x": .9, "center_y": .6}
MDRaisedButton:
text: "Submit"
pos_hint: {"y": .2, "center_x" : .5}
size_hint: 1, 0.3
on_release: app.add_payment()
MDRaisedButton:
text: "Go back"
pos_hint: {"y": 0, "center_x" : .5}
size_hint: 1, 0.25
on_release:
root.current = "main"
#---------------------------------------------------------------------------------------------------------------
MDScreen:
name: "view"
MDFloatLayout:
MDScrollView:
do_scroll_x: False
padding: 10, 10
scroll_type: ['content', 'bars' ]
bar_width: 20
MDLabel:
id: print_date
text: "Nothing to display"
pos_hint: {"center_x" : 0, "y" : .6}
size_hint: .4, None
text_size: self.width, None
height: self.texture_size[1]
halign: "left"
MDTextField:
id: show_date
mode: "rectangle"
pos_hint: {"x" : .5, "y" : .7}
MDIconButton:
icon: "calendar"
pos_hint: {"center_x": .7, "center_y": .9}
size_hint: None, None
on_release: app.show_date_picker_1()
MDRaisedButton:
text: "Check payments"
pos_hint: {"y" : .2}
size_hint: 1, 0.1
on_release:
app.view_payment()
MDRaisedButton:
text: "Total"
pos_hint: {"y" : .1}
size_hint: 1, 0.1
on_release:
app.total()
MDRaisedButton:
text: "Go back"
pos_hint: {"y" : 0}
size_hint: 1, 0.1
on_release:
root.current = "main"
'''
payments = {}
file = "work.json"
class Test(MDApp):
def build(self):
self.theme_cls.theme_style = "Dark"
self.theme_cls.primary_palette = "Orange"
return Builder.load_string(KV)
def on_save(self, instance, value, date_range):
'''sets the date in Add payment'''
self.root.ids.date.text = str(value.strftime("%Y/%m/%d"))
print(value)
def on_save_1(self, instance, value, date_range):
'''sets the date in view payment'''
self.root.ids.show_date.text = str(value.strftime("%Y/%m/%d"))
def on_cancel(self, instance, value):
'''Events called when the "CANCEL" dialog box button is clicked.'''
def show_date_picker(self):
'''calls the date picker in add payment window'''
date_dialog = MDDatePicker()
date_dialog.bind(on_save=self.on_save, on_cancel=self.on_cancel)
date_dialog.open()
def show_date_picker_1(self):
'''calls the date picker in view window'''
date_dialog = MDDatePicker()
date_dialog.bind(on_save=self.on_save_1, on_cancel=self.on_cancel)
date_dialog.open()
def on_checkbox_active(self, checkbox, value):
if value:
payment_amount = float(self.root.ids.amount.text) * 1.5
else:
payment_amount = float(self.root.ids.amount.text) / 1.5
self.root.ids.amount.text = str(payment_amount)
##########################################
def add_payment(self):
"""creates dictionary entry and saves it."""
# sets date as user input in date field
date = self.root.ids.date.text
# sets case_id as user input in case_id field
case_id = self.root.ids.case_id.text
# sets amount as user input in amount field
amount = self.root.ids.amount.text
# sets payment_type as user input in payment_type field
payment_type = self.root.ids.payment_type.text
try:
self._extracted_from_add_payment_11(date, case_id, payment_type, amount)
except ValueError as Error:
self._extracted_from_add_payment_11(date, case_id, payment_type, amount)
# TODO Rename this here and in `add_payment`
def _extracted_from_add_payment_11(self, date, case_id, payment_type, amount):
# checks if json file exists if it doesnt creates it if it does it dumps payments in it
try:
with open(file, 'x') as f:
payments = {}
j = json.dump(payments, f)
except FileExistsError:
with open(file, 'r') as f:
payments = json.load(f)
#creates entry in dictionary if date exists appends it if not creates an entry
if date not in payments:
payments[date] = []
payments[date].append(
{
"Case id" : case_id,
"Payment type" : payment_type,
"Amount" : amount
})
#resets the input fields to empty
self.root.ids.case_id.text = ''
self.root.ids.amount.text = ''
self.root.ids.payment_type.text = ''
#dumps data in json
with open(file, 'w') as f:
j = json.dump(payments, f)
def view_payment(self):
"""finds entry in dictionary and puts all matches to a label"""
#sets date as input from date field
date = self.root.ids.show_date.text
#sets print_date label to empty
self.root.ids.print_date.text = ""
#loads data from json
with open(file, 'r') as f:
payments = json.load(f)
#if it finds entry puts it in a label if not sets label text as date does not exist
try:
for b, i in enumerate(payments.get(date, None), start=0):
self.root.ids.print_date.text += f"{b+1}. Case id:{payments[date][b].get('Case id')}, Payment type:{payments[date][b].get('Payment type')}, Amount:{payments[date][b].get('Amount')}.\n"
except (KeyError, TypeError) as error: # handle file not found on first launch
date = self.root.ids.show_date.text
self.root.ids.print_date.text = "No payments or wrong date"
def total(self):
"""finds entrys in specific date and sums them up"""
#sets date as input from show_date field
date = self.root.ids.show_date.text
#resets print_date label to empty
self.root.ids.print_date.text = ''
total1 = 0
# finds required dates amount entrys and sums them
try:
with open(file, 'r') as f:
payments = json.load(f)
for i in payments[date]:
# if there is no value it skips it and look for other entry
if amount := i.get('Amount'):
total1 += float(amount)
self.root.ids.print_date.text += str(total1)
except (KeyError,ValueError) as Error:
self.root.ids.print_date.text = 'Date does not exist'
Test().run()
the only thing i noticed it says that MDScrollView import is not being accessed.
any help would be greatly appreciated