Quick snackbar
coutinh...@gmail.com
I'm having some trouble with the snackbar.
They work, they appear as is in the kivymd demo, however they appear where they are not needed.
In the attached example I have the screen_lista.py file
In the on_enter event on line 111 of this file it should show the snackbar, the error is that it is showing the snackbar as soon as the application starts.
Any tips?
Elliot Garbus
On May 15, 2022, at 5:18 AM, coutinh...@gmail.com <coutinh...@gmail.com> wrote:
Hello friends.
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Elias Coutinho
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Aprender sobre alguns assuntos é fundamental.
Aprender sobre Deus é indiscutivelmente o melhor conteúdo.
Elliot Garbus
If the problem is you do not want to snackbar to be opened the first time the screen is entered, you can add a variable to track that. See the example below.
class ScreenRecycleView(Screen):
image_data = ListProperty()
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.first_view = True
def on_kv_post(self, base_widget):
self.ids.rv.data = [
{
'source': choice(sample_images),
'text': ''.join(sample(ascii_lowercase, 6))
}
for x in range(50)
]
def on_enter(self):
if self.first_view:
self.first_view = False
else:
Snackbar(text='Após a pesquisa clique 2x na imagem.').open()
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Elias Coutinho
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Elliot Garbus
I did not see this behavior.
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Elias Coutinho
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Elliot Garbus
The on_enter event is firing in your nested screen manager, causing the snackbar to show up. The snackbar is not attached to the screen so is displayed on the current screen. Here is a possible workaround.
Add a screen to the nested screen_manager as a place holder. This way the ScreenRecycleView will not be entered by default.
ScreenManager:
id: screen_manager
Screen: # placeholder so ScreenRecycleView is not opened by default
ScreenRecycleView:
TelaLogin:
TelaItem:
Then in your primary screen_manager, change to the ‘screen_listagem’ when entering the main screen.
ScreenManager:
id: screen_manager_login
TelaLogin:
name: 'tela_login'
MainScreen:
name: 'main_screen'
on_enter: self.ids.screen_manager.current = 'screen_listagem'
'''
This should fix the behavior of the SnackBar.
Things might be simpler if you did not nest your ScreenManagers. They are both taking the full screen – so I don’t understand the utility of nesting them.
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Elias Coutinho
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Elliot Garbus
On May 20, 2022, at 3:32 PM, Elias Coutinho <coutinh...@gmail.com> wrote:
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