Scroller: A Lazy Wrapper For Your Listview

Опубликовано: 14 Июль 2021
на канале: FlutterShipp

333

Source code: https://github.com/irajeshh/FlutterShip

ScreenCopy: https://github.com/Genymobile/scrcpy
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Hashtags: #flutter #flutterShip #android #ios

What I Spoke In This Video:
Can you remember what happens when you try to go back from an app page?
Most of the apps will go back instantly, but I don't prefer that to be happen in my apps
I'll try to hold the user for one more time by auto scrolling to the initial
content.

I use Scroller widget to handle this situation.

First of all, let us make the Scroller widget as an integral part of Widgets class.

Now the basic parameters required are a scrollcontroller and a child widget.

This basically works by WillPopScope widget.

When there is no child given, we show a sad emoji, of course it's not needed
anymore as we set the parameters
to @required, it will be indicated automatically, if not given

The scrollbar can be optionally enabled to show the current position
In my case i use it for all the apps as much as possible.

When you try to go back, let us check if the user is seeing the initial
content or he is so far from the top.
The position.pixels will give you the current pixel values and let we can
calculate our logic.
In some cases, you may face exceptions. To avoid that, just wrap the code
with try and catch block.

Now we try this widget on our previous crypto currency wallet app clone.
When I press back button, it scrolls up to the top and If it go back it will
go back.
Hope you find this widget as useful.
I'll share some of the other widgets I use personally In the upcoming videos.
Have a great day.

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