Flashbar | highly customizable , powerful and easy-to-use alerting | Android library
kandi X-RAY | Flashbar Summary
kandi X-RAY | Flashbar Summary
️A highly customizable, powerful and easy-to-use alerting library for Android.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Flashbar
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QUESTION
I am trying to find a way to dispose of flash bar (flash package) when Navigator.of(context).pop()
is called. When user pops current screen where flash bar is visible it disappears only after its duration time has elapsed.
I tried creating FlashController in screen that displays flash bar, and creating FlashController
callback function from showCustomFlashbar()
method where I would assign FlashController
from builder
to FlashController
from screen it is used in.
But let's say I want to use this flash bar in 50 different screens. That's too much copy/paste code each time. Is there a way it can be dismissed universally so that I wouldn't have to do that in every screen.
My custom flash bar:
...ANSWER
Answered 2022-Mar-23 at 15:54Call controller.dispose;
in dispose method of stateful widget.
Reference: https://github.com/sososdk/flash/issues/7#issuecomment-619475438
QUESTION
I am getting a "LateInitializationError: Field '_alarmHelper@808171109' has not been initialized." Whenever I try and initialize my database in flutter.
Following you can find the full error itself:
...ANSWER
Answered 2021-Oct-12 at 19:18Do you know what the late keyword does? the late keyword in dart means:
Don't worry dart, by the time constructor is done running, this variable will have a value
Obviously, this is not the case in your code, your constructor AlarmHelper._createInstance()
never assigns a value to either _database
or _alarmHelper
, so you get a late initialization error.
You also have _database == null
on some parts of your code, this will never be true, because _database
will throw an error if it ever is null, the way to fix this is to simply make both _database
and _alarmHelper
nullable by adding a ?
after their types, so instead of this:
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