newtask.kv

<SubjectField>
    id: subject_field

<SubjectDropDown>
    id: subject_drop_down
    items: app.sub_list

<SubjectTextField>
    

<NewTaskPage>
    id: new_task_page
    orientation: 'vertical'
    padding: dp(10)
    spacing: dp(10)

    MDLabel:
        text: 'New Task'
        font_style: 'H5'
        size_hint_y: None
        size: self.texture_size
    
    BoxLayout:
        size_hint: 1, None
        size: self.minimum_size
        padding: dp(10), 0
        spacing: 20
        orientation: 'horizontal'
        id: row_1
        MDTextField:
            hint_text: 'Task name'
            mode: 'rectangle'
            required: True
            helper_text_mode: 'on_error'
            id: task_name
        MDDropDownItem:
            id: task_type_dropdown
            items: ['Homework', 'Worksheet', 'Quiz', 'Test', 'Project']
            dropdown_bg: [1, 1, 1, 1]
    
    MDTextField:
        hint_text: 'Subject'
        id: task_subject
        # SubjectField:
        #     size_hint: None, None
        #     size: self.minimum_size
        #     SubjectDropDown:
        # MDCheckbox:
        #     size_hint: None, None
            # on_state: app.update_subject_field
    
    MDTextField:
        multiline: True
        hint_text: 'Task Description'
        helper_text: 'optional'
        helper_text_mode: 'on_focus'
        id: task_description
        max_text_length: 500

    GridLayout:
        cols: 2
        spacing: 10
        MDLabel:
            text: 'Date Set:'
            font_style: 'Body1'
            size_hint_y: 0.1
            size: self.texture_size
        
        MDLabel:
            text: 'Date Due:'
            font_style: 'Body1'
            size_hint_y: 0.1
            size: self.texture_size

        MDRaisedButton:
            id: date_set
            text: str(root.today)
            size_hint: 1, 0.5
            opposite_colors: True
            on_release: root.show_date_set_picker()

        MDRaisedButton:
            id: date_due
            text: str(root.today)
            elevation_normal: 2
            opposite_colors: True
            size_hint: 1,0.5
            on_release: root.show_date_due_picker()
        
    
    GridLayout:
        cols: 2
        #row_default_height: 40
        size_hint: 1, 0.3
        spacing: 10
        MDRaisedButton:
            text: "Cancel"
            elevation_normal: 2
            opposite_colors: True
            size_hint: 1,1
            on_release: app.changeScreen('main_app_screen')

        MDRaisedButton:
            text: "Save"
            elevation_normal: 2
            opposite_colors: True
            size_hint: 1,1
            on_release: root.check_data_task()