滚动视图部分中的标签未正确显示
Label not showing properly in scrollview section
我的标签的最后几行没有显示。我希望我的标签使用 ScrollView 小部件在我的屏幕上正确显示我试过这个但是 ScrollView 不工作除非它有更多的行但是当我增加行并且当我再次滚动时最后一行没有正确出现。简而言之，我希望随着文本长度的增加，滚动视图可以正确显示标签的每一行，并且段落之间的 space 也不会显示
这是我的 .kv 文件代码
ScreenManager:
id: screen_manager
MainScreen:
name: 'main'
NavigationLayout:
ScreenManager:
Screen:
MDToolbar:
title: "Story"
anchor_title: 'left'
pos_hint: {"top": 1}
elevation: 10
left_action_items: [['menu', lambda x: nav_drawer.set_state()]]
MDNavigationDrawer:
title: 'Story A Day'
id: nav_drawer
swipe_distance: 10
ContentNavigationDrawer:
id: content_drawer
screen_manager: screen_manager
nav_drawer: nav_drawer
<MainScreen>:
BoxLayout:
canvas:
Color:
rgb: 0, 0, 0, 0
Rectangle:
pos: root.pos
size: root.size
ScrollView:
Label:
text:
"""
A boy and a girl were playing together. The boy
had a collection of marbles. The girl has some
sweets with her. The boy told the girl that he
would give her all his marbles in exchange for the
sweets with her. The girl agreed.
The boy kept the most beautiful and the biggest
marbles with him and gave her the remaining marbles.
The girl gave him all her sweets as she promised.
That night the girl slept peacefully. But the boy
could not sleep as he kept wondering if the girl
has hidden some sweets from him the way he had
hidden the best marbles from her.
Moral of the Story :
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
"""
font_size: '20sp'
height: self.texture_size[1]
size: self.texture_size
text_size: root.width, None
size_hint_x: 1.0
size_hint_y: None
halign: "auto"
valign: "middle"
我在猜测您真正想要 BoxLayout 的位置，但我会这样做：
ScreenManager:
id: screen_manager
MainScreen:
<MainScreen>:
name: 'main'
NavigationLayout:
id: nav_layout
ScreenManager:
Screen:
MDToolbar:
id: toolbar
title: "Story"
anchor_title: 'left'
pos_hint: {"top": 1}
elevation: 10
left_action_items: [['menu', lambda x: nav_drawer.set_state()]]
BoxLayout:
size_hint: 1, None
height: root.height - toolbar.height
ScrollView:
Label:
text:
"""
A boy and a girl were playing together. The boy
had a collection of marbles. The girl has some
sweets with her. The boy told the girl that he
would give her all his marbles in exchange for the
sweets with her. The girl agreed.
The boy kept the most beautiful and the biggest
marbles with him and gave her the remaining marbles.
The girl gave him all her sweets as she promised.
That night the girl slept peacefully. But the boy
could not sleep as he kept wondering if the girl
has hidden some sweets from him the way he had
hidden the best marbles from her.
Moral of the Story :
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
"""
font_size: '20sp'
color: 0,0,0,1
height: self.texture_size[1]
size: self.texture_size
text_size: root.width, None
size_hint_x: 1.0
size_hint_y: None
halign: "auto"
valign: "middle"
MDNavigationDrawer:
title: 'Story A Day'
id: nav_drawer
swipe_distance: 10
ContentNavigationDrawer:
id: content_drawer
screen_manager: app.root
nav_drawer: nav_drawer
#:import FadeTransition kivy.uix.screenmanager.FadeTransition
ScreenManager:
id: screens
FirstScreen:
AboutUs:
MDIconButton:
icon: 'close'
theme_text_color: "Custom"
text_color: app.theme_cls.primary_color
pos_hint: {"center_y": 0.97}
text_color: 1, 1, 1, 1
on_release:
screens.transition.direction = 'right'
screens.current = "main"
<ContentNavigationDrawer>:
background_color: 2, 3, 4, 5
orientation: "vertical"
padding: "8dp"
spacing: "8dp"
AnchorLayout:
anchor_x: "right"
size_hint_y: None
height: avatar.height
Image:
id: avatar
size_hint: None, None
size: "56dp", "56dp"
source: "data/logo/kivy-icon-256.png"
MDLabel:
anchor_y: 'left'
text: "[b]Story A Day[/b]"
theme_text_color: "Custom"
text_color: 0, 0, 0, 1
markup: True
font_style: "H4"
size_hint_y: None
height: self.texture_size[1]
MDLabel:
text: 'Story A Day'
font_style: "Button"
size_hint_y: None
height: self.texture_size[1]
ScrollView:
MDList:
MDExpansionPanelTwoLine:
text: 'send us your idea'
secondary_text: 'email: xxxxx@gmail.com'
IconLeftWidget:
icon: "email"
TwoLineAvatarListItem:
text: 'Send us your story'
secondary_text: 'to: Story_A_Day@gmail.com'
IconLeftWidget:
icon: "email"
OneLineAvatarListItem:
text: "About Us"
on_release:
root.nav_drawer.set_state("close")
root.screens.transition.direction = 'right'
root.screens.current = "main"
IconLeftWidget:
icon: "information"
on_release:
root.nav_drawer.set_state("close")
screens.transition = FadeTransition(duration=0.5)
screens.current = "screen1"
<AboutUs>:
name: 'screen1'
canvas:
Color:
rgba: 0, 0, 0, 1
Rectangle:
pos: self.pos
size: self.size
Label:
text_color: 255, 255, 255, 0
text: """[b]About Us [/b]"""
markup: True
font_size: '40sp'
text_size: None, None
size_hint: 1, 1.9
height: self.texture_size[1]
Label:
text_color: 255, 255, 255, 0
font_size: '18sp'
text_size: self.width, None
size_hint: 1, 1.5
height: self.texture_size[1]
halign: "center"
valign: "center"
text:
""""""
<Share>
MDFloatingActionButtonSpeedDial:
data: root.data
icon: 'share-variant'
opening_time: 0.5
callback: root.callback # on pressing the call stack buttons
color_icon_root_button: 0, 0, 0, 1 # color of icon of button
color_icon_stack_button: 0, 0, 0, 1
hint_animation: True
rotation_root_button: False
<FirstScreen>:
name: 'main'
NavigationLayout:
id: nav_layout
ScreenManager:
Screen:
MDToolbar:
id: toolbar
title: "Story"
anchor_title: 'left'
pos_hint: {"top": 1}
elevation: 10
left_action_items: [['menu', lambda x: nav_drawer.set_state()]]
BoxLayout:
size_hint: 1, None
height: root.height - toolbar.height
canvas:
Color:
rgba: 0, 0, 0, 1
Rectangle:
pos: self.pos
size: self.size
ScrollView:
Label:
text:
"""
A boy and a girl were playing together. The boy
had a collection of marbles. The girl has some
sweets with her. The boy told the girl that he
would give her all his marbles in exchange for the
sweets with her. The girl agreed.
The boy kept the most beautiful and the biggest
marbles with him and gave her the remaining marbles.
The girl gave him all her sweets as she promised.
That night the girl slept peacefully. But the boy
could not sleep as he kept wondering if the girl
has hidden some sweets from him the way he had
hidden the best marbles from her.
Moral of the Story :
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
"""
font_size: '20sp'
text_color: 255,255,255, 0
height: self.texture_size[1]
size: self.texture_size
text_size: root.width, None
size_hint_x: 1.0
size_hint_y: None
halign: "auto"
valign: "middle"
MDNavigationDrawer:
title: 'Story A Day'
id: nav_drawer
swipe_distance: 10
ContentNavigationDrawer:
id: content_drawer
screens: app.root
nav_drawer: nav_drawer
这是您的 kv 文件，其中 ScreenManager: 规则仅列出了 child Screens:
#:import FadeTransition kivy.uix.screenmanager.FadeTransition
ScreenManager:
id: screens
FirstScreen:
AboutUs:
<ContentNavigationDrawer>:
background_color: 2, 3, 4, 5
orientation: "vertical"
padding: "8dp"
spacing: "8dp"
AnchorLayout:
anchor_x: "right"
size_hint_y: None
height: avatar.height
Image:
id: avatar
size_hint: None, None
size: "56dp", "56dp"
source: "data/logo/kivy-icon-256.png"
MDLabel:
anchor_y: 'left'
text: "[b]Story A Day[/b]"
theme_text_color: "Custom"
text_color: 0, 0, 0, 1
markup: True
font_style: "H4"
size_hint_y: None
height: self.texture_size[1]
MDLabel:
text: 'Story A Day'
font_style: "Button"
size_hint_y: None
height: self.texture_size[1]
ScrollView:
MDList:
MDExpansionPanelTwoLine:
text: 'send us your idea'
secondary_text: 'email: xxxxx@gmail.com'
IconLeftWidget:
icon: "email"
TwoLineAvatarListItem:
text: 'Send us your story'
secondary_text: 'to: Story_A_Day@gmail.com'
IconLeftWidget:
icon: "email"
OneLineAvatarListItem:
text: "About Us"
on_release:
root.nav_drawer.set_state("close")
app.root.transition.direction = 'right'
app.root.current = "screen1"
IconLeftWidget:
icon: "information"
on_release:
root.nav_drawer.set_state("close")
app.root.transition = FadeTransition(duration=0.5)
app.root.current = "screen1"
<AboutUs>:
name: 'screen1'
canvas:
Color:
rgba: 0, 0, 0, 1
Rectangle:
pos: self.pos
size: self.size
MDIconButton:
icon: 'close'
theme_text_color: "Custom"
text_color: app.theme_cls.primary_color
pos_hint: {"center_y": 0.97}
text_color: 1, 1, 1, 1
on_release:
app.root.transition.direction = 'right'
app.root.current = "main"
Label:
text_color: 255, 255, 255, 0
text: """[b]About Us [/b]"""
markup: True
font_size: '40sp'
text_size: None, None
size_hint: 1, None
height: self.texture_size[1]
pos_hint: {'top':1}
Label:
text_color: 255, 255, 255, 0
font_size: '18sp'
text_size: self.width, 100
size_hint: 1, None
height: self.texture_size[1]
halign: "center"
valign: "center"
text:
""""""
<Share>
MDFloatingActionButtonSpeedDial:
data: root.data
icon: 'share-variant'
opening_time: 0.5
callback: root.callback # on pressing the call stack buttons
color_icon_root_button: 0, 0, 0, 1 # color of icon of button
color_icon_stack_button: 0, 0, 0, 1
hint_animation: True
rotation_root_button: False
<FirstScreen>:
name: 'main'
NavigationLayout:
id: nav_layout
ScreenManager:
Screen:
MDToolbar:
id: toolbar
title: "Story"
anchor_title: 'left'
pos_hint: {"top": 1}
elevation: 10
left_action_items: [['menu', lambda x: nav_drawer.set_state()]]
BoxLayout:
size_hint: 1, None
height: root.height - toolbar.height
canvas:
Color:
rgba: 0, 0, 0, 1
Rectangle:
pos: self.pos
size: self.size
ScrollView:
Label:
text:
"""
A boy and a girl were playing together. The boy
had a collection of marbles. The girl has some
sweets with her. The boy told the girl that he
would give her all his marbles in exchange for the
sweets with her. The girl agreed.
The boy kept the most beautiful and the biggest
marbles with him and gave her the remaining marbles.
The girl gave him all her sweets as she promised.
That night the girl slept peacefully. But the boy
could not sleep as he kept wondering if the girl
has hidden some sweets from him the way he had
hidden the best marbles from her.
Moral of the Story :
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
"""
font_size: '20sp'
text_color: 255,255,255, 0
height: self.texture_size[1]
size: self.texture_size
text_size: root.width, None
size_hint_x: 1.0
size_hint_y: None
halign: "auto"
valign: "middle"
MDNavigationDrawer:
title: 'Story A Day'
id: nav_drawer
swipe_distance: 10
ContentNavigationDrawer:
id: content_drawer
screen_manager: app.root
nav_drawer: nav_drawer
我注意到你对 AboutUs 做了同样的事情，所以我也修改了它，现在它的所有布局都在 <AboutUs>: 规则中。由于您的 ScreenManager 现在与 Screens 处于不同的规则中，因此您无法使用其 id 访问它（ids 仅在同一规则中有效）。因此 Screen 更改可以使用 app.root.current.
完成
我认为 screen_manager: app.root 不起作用，因为在计算该表达式时 app 尚不可用。
我的标签的最后几行没有显示。我希望我的标签使用 ScrollView 小部件在我的屏幕上正确显示我试过这个但是 ScrollView 不工作除非它有更多的行但是当我增加行并且当我再次滚动时最后一行没有正确出现。简而言之，我希望随着文本长度的增加，滚动视图可以正确显示标签的每一行，并且段落之间的 space 也不会显示
这是我的 .kv 文件代码
ScreenManager:
id: screen_manager
MainScreen:
name: 'main'
NavigationLayout:
ScreenManager:
Screen:
MDToolbar:
title: "Story"
anchor_title: 'left'
pos_hint: {"top": 1}
elevation: 10
left_action_items: [['menu', lambda x: nav_drawer.set_state()]]
MDNavigationDrawer:
title: 'Story A Day'
id: nav_drawer
swipe_distance: 10
ContentNavigationDrawer:
id: content_drawer
screen_manager: screen_manager
nav_drawer: nav_drawer
<MainScreen>:
BoxLayout:
canvas:
Color:
rgb: 0, 0, 0, 0
Rectangle:
pos: root.pos
size: root.size
ScrollView:
Label:
text:
"""
A boy and a girl were playing together. The boy
had a collection of marbles. The girl has some
sweets with her. The boy told the girl that he
would give her all his marbles in exchange for the
sweets with her. The girl agreed.
The boy kept the most beautiful and the biggest
marbles with him and gave her the remaining marbles.
The girl gave him all her sweets as she promised.
That night the girl slept peacefully. But the boy
could not sleep as he kept wondering if the girl
has hidden some sweets from him the way he had
hidden the best marbles from her.
Moral of the Story :
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
"""
font_size: '20sp'
height: self.texture_size[1]
size: self.texture_size
text_size: root.width, None
size_hint_x: 1.0
size_hint_y: None
halign: "auto"
valign: "middle"
我在猜测您真正想要 BoxLayout 的位置，但我会这样做：
ScreenManager:
id: screen_manager
MainScreen:
<MainScreen>:
name: 'main'
NavigationLayout:
id: nav_layout
ScreenManager:
Screen:
MDToolbar:
id: toolbar
title: "Story"
anchor_title: 'left'
pos_hint: {"top": 1}
elevation: 10
left_action_items: [['menu', lambda x: nav_drawer.set_state()]]
BoxLayout:
size_hint: 1, None
height: root.height - toolbar.height
ScrollView:
Label:
text:
"""
A boy and a girl were playing together. The boy
had a collection of marbles. The girl has some
sweets with her. The boy told the girl that he
would give her all his marbles in exchange for the
sweets with her. The girl agreed.
The boy kept the most beautiful and the biggest
marbles with him and gave her the remaining marbles.
The girl gave him all her sweets as she promised.
That night the girl slept peacefully. But the boy
could not sleep as he kept wondering if the girl
has hidden some sweets from him the way he had
hidden the best marbles from her.
Moral of the Story :
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
"""
font_size: '20sp'
color: 0,0,0,1
height: self.texture_size[1]
size: self.texture_size
text_size: root.width, None
size_hint_x: 1.0
size_hint_y: None
halign: "auto"
valign: "middle"
MDNavigationDrawer:
title: 'Story A Day'
id: nav_drawer
swipe_distance: 10
ContentNavigationDrawer:
id: content_drawer
screen_manager: app.root
nav_drawer: nav_drawer
#:import FadeTransition kivy.uix.screenmanager.FadeTransition
ScreenManager:
id: screens
FirstScreen:
AboutUs:
MDIconButton:
icon: 'close'
theme_text_color: "Custom"
text_color: app.theme_cls.primary_color
pos_hint: {"center_y": 0.97}
text_color: 1, 1, 1, 1
on_release:
screens.transition.direction = 'right'
screens.current = "main"
<ContentNavigationDrawer>:
background_color: 2, 3, 4, 5
orientation: "vertical"
padding: "8dp"
spacing: "8dp"
AnchorLayout:
anchor_x: "right"
size_hint_y: None
height: avatar.height
Image:
id: avatar
size_hint: None, None
size: "56dp", "56dp"
source: "data/logo/kivy-icon-256.png"
MDLabel:
anchor_y: 'left'
text: "[b]Story A Day[/b]"
theme_text_color: "Custom"
text_color: 0, 0, 0, 1
markup: True
font_style: "H4"
size_hint_y: None
height: self.texture_size[1]
MDLabel:
text: 'Story A Day'
font_style: "Button"
size_hint_y: None
height: self.texture_size[1]
ScrollView:
MDList:
MDExpansionPanelTwoLine:
text: 'send us your idea'
secondary_text: 'email: xxxxx@gmail.com'
IconLeftWidget:
icon: "email"
TwoLineAvatarListItem:
text: 'Send us your story'
secondary_text: 'to: Story_A_Day@gmail.com'
IconLeftWidget:
icon: "email"
OneLineAvatarListItem:
text: "About Us"
on_release:
root.nav_drawer.set_state("close")
root.screens.transition.direction = 'right'
root.screens.current = "main"
IconLeftWidget:
icon: "information"
on_release:
root.nav_drawer.set_state("close")
screens.transition = FadeTransition(duration=0.5)
screens.current = "screen1"
<AboutUs>:
name: 'screen1'
canvas:
Color:
rgba: 0, 0, 0, 1
Rectangle:
pos: self.pos
size: self.size
Label:
text_color: 255, 255, 255, 0
text: """[b]About Us [/b]"""
markup: True
font_size: '40sp'
text_size: None, None
size_hint: 1, 1.9
height: self.texture_size[1]
Label:
text_color: 255, 255, 255, 0
font_size: '18sp'
text_size: self.width, None
size_hint: 1, 1.5
height: self.texture_size[1]
halign: "center"
valign: "center"
text:
""""""
<Share>
MDFloatingActionButtonSpeedDial:
data: root.data
icon: 'share-variant'
opening_time: 0.5
callback: root.callback # on pressing the call stack buttons
color_icon_root_button: 0, 0, 0, 1 # color of icon of button
color_icon_stack_button: 0, 0, 0, 1
hint_animation: True
rotation_root_button: False
<FirstScreen>:
name: 'main'
NavigationLayout:
id: nav_layout
ScreenManager:
Screen:
MDToolbar:
id: toolbar
title: "Story"
anchor_title: 'left'
pos_hint: {"top": 1}
elevation: 10
left_action_items: [['menu', lambda x: nav_drawer.set_state()]]
BoxLayout:
size_hint: 1, None
height: root.height - toolbar.height
canvas:
Color:
rgba: 0, 0, 0, 1
Rectangle:
pos: self.pos
size: self.size
ScrollView:
Label:
text:
"""
A boy and a girl were playing together. The boy
had a collection of marbles. The girl has some
sweets with her. The boy told the girl that he
would give her all his marbles in exchange for the
sweets with her. The girl agreed.
The boy kept the most beautiful and the biggest
marbles with him and gave her the remaining marbles.
The girl gave him all her sweets as she promised.
That night the girl slept peacefully. But the boy
could not sleep as he kept wondering if the girl
has hidden some sweets from him the way he had
hidden the best marbles from her.
Moral of the Story :
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
"""
font_size: '20sp'
text_color: 255,255,255, 0
height: self.texture_size[1]
size: self.texture_size
text_size: root.width, None
size_hint_x: 1.0
size_hint_y: None
halign: "auto"
valign: "middle"
MDNavigationDrawer:
title: 'Story A Day'
id: nav_drawer
swipe_distance: 10
ContentNavigationDrawer:
id: content_drawer
screens: app.root
nav_drawer: nav_drawer
这是您的 kv 文件，其中 ScreenManager: 规则仅列出了 child Screens:
#:import FadeTransition kivy.uix.screenmanager.FadeTransition
ScreenManager:
id: screens
FirstScreen:
AboutUs:
<ContentNavigationDrawer>:
background_color: 2, 3, 4, 5
orientation: "vertical"
padding: "8dp"
spacing: "8dp"
AnchorLayout:
anchor_x: "right"
size_hint_y: None
height: avatar.height
Image:
id: avatar
size_hint: None, None
size: "56dp", "56dp"
source: "data/logo/kivy-icon-256.png"
MDLabel:
anchor_y: 'left'
text: "[b]Story A Day[/b]"
theme_text_color: "Custom"
text_color: 0, 0, 0, 1
markup: True
font_style: "H4"
size_hint_y: None
height: self.texture_size[1]
MDLabel:
text: 'Story A Day'
font_style: "Button"
size_hint_y: None
height: self.texture_size[1]
ScrollView:
MDList:
MDExpansionPanelTwoLine:
text: 'send us your idea'
secondary_text: 'email: xxxxx@gmail.com'
IconLeftWidget:
icon: "email"
TwoLineAvatarListItem:
text: 'Send us your story'
secondary_text: 'to: Story_A_Day@gmail.com'
IconLeftWidget:
icon: "email"
OneLineAvatarListItem:
text: "About Us"
on_release:
root.nav_drawer.set_state("close")
app.root.transition.direction = 'right'
app.root.current = "screen1"
IconLeftWidget:
icon: "information"
on_release:
root.nav_drawer.set_state("close")
app.root.transition = FadeTransition(duration=0.5)
app.root.current = "screen1"
<AboutUs>:
name: 'screen1'
canvas:
Color:
rgba: 0, 0, 0, 1
Rectangle:
pos: self.pos
size: self.size
MDIconButton:
icon: 'close'
theme_text_color: "Custom"
text_color: app.theme_cls.primary_color
pos_hint: {"center_y": 0.97}
text_color: 1, 1, 1, 1
on_release:
app.root.transition.direction = 'right'
app.root.current = "main"
Label:
text_color: 255, 255, 255, 0
text: """[b]About Us [/b]"""
markup: True
font_size: '40sp'
text_size: None, None
size_hint: 1, None
height: self.texture_size[1]
pos_hint: {'top':1}
Label:
text_color: 255, 255, 255, 0
font_size: '18sp'
text_size: self.width, 100
size_hint: 1, None
height: self.texture_size[1]
halign: "center"
valign: "center"
text:
""""""
<Share>
MDFloatingActionButtonSpeedDial:
data: root.data
icon: 'share-variant'
opening_time: 0.5
callback: root.callback # on pressing the call stack buttons
color_icon_root_button: 0, 0, 0, 1 # color of icon of button
color_icon_stack_button: 0, 0, 0, 1
hint_animation: True
rotation_root_button: False
<FirstScreen>:
name: 'main'
NavigationLayout:
id: nav_layout
ScreenManager:
Screen:
MDToolbar:
id: toolbar
title: "Story"
anchor_title: 'left'
pos_hint: {"top": 1}
elevation: 10
left_action_items: [['menu', lambda x: nav_drawer.set_state()]]
BoxLayout:
size_hint: 1, None
height: root.height - toolbar.height
canvas:
Color:
rgba: 0, 0, 0, 1
Rectangle:
pos: self.pos
size: self.size
ScrollView:
Label:
text:
"""
A boy and a girl were playing together. The boy
had a collection of marbles. The girl has some
sweets with her. The boy told the girl that he
would give her all his marbles in exchange for the
sweets with her. The girl agreed.
The boy kept the most beautiful and the biggest
marbles with him and gave her the remaining marbles.
The girl gave him all her sweets as she promised.
That night the girl slept peacefully. But the boy
could not sleep as he kept wondering if the girl
has hidden some sweets from him the way he had
hidden the best marbles from her.
Moral of the Story :
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
If you do not give 100 percent in a relationship,
you will always kept doubting if the other person
has given her / his hundred percent. This is applicable
for any relationship like love, employee –
employer, friendship, family, countries, etc
and the most of the feelings we get now
days are just merely just the impact of the
surrounding now days we dont have a good
feeling that last long
and now we have to just name it in that way
"""
font_size: '20sp'
text_color: 255,255,255, 0
height: self.texture_size[1]
size: self.texture_size
text_size: root.width, None
size_hint_x: 1.0
size_hint_y: None
halign: "auto"
valign: "middle"
MDNavigationDrawer:
title: 'Story A Day'
id: nav_drawer
swipe_distance: 10
ContentNavigationDrawer:
id: content_drawer
screen_manager: app.root
nav_drawer: nav_drawer
我注意到你对 AboutUs 做了同样的事情，所以我也修改了它，现在它的所有布局都在 <AboutUs>: 规则中。由于您的 ScreenManager 现在与 Screens 处于不同的规则中，因此您无法使用其 id 访问它（ids 仅在同一规则中有效）。因此 Screen 更改可以使用 app.root.current.
我认为 screen_manager: app.root 不起作用，因为在计算该表达式时 app 尚不可用。