Flutter null check operator used on a null value?
I work on a shop app for learning.
And when I try to get data from the API, I always have this problem:
Flutter null check operator used on a null value?
I work on a shop app for learning.
And when I try to get data from the API, I always have this problem:
Flutter null check operator used on a null value?
I work on a shop app for learning.
And when I try to get data from the API, I always have this problem:
Water level animation in flutter
I’m trying to create an app in Flutter that shows the water level from the Thingspeak API, i already have the data on my providers, but I need to show it in a chart and an animation based on the water level, any suggestions?
How can I fetch data from dropbutton that depends on the value of two other drop buttons?
The problem is the fetchVersions() of the DropVersion is taking null values (taking null values of DropTitreand DropType when the interface is opened) instead of waiting that I select Titre and type then he receives the values of them,
so I tested my function in API and it works fine, but when I put the URL in the front the DropVersion becomes unselectable.