loading_overlay_pro 
A simple widget wrapper set of loading animations for Flutter projects.
Use animation from loading_animations
Getting Started
Then import the file to your project:
import 'package:loading_overlay_pro/loading_overlay_pro.dart'
Then add the following code:
LoadingOverlayPro({
Key key,
@required this.isLoading,
@required this.child,
this.colorBackground = Colors.black54,
this.progressIndicator = const LoadingBouncingLine.circle(),
});
Or customize it even more!
LoadingBouncingLine.circle(
borderColor: Colors.cyan,
borderSize: 3.0,
size: 120.0,
backgroundColor: Colors.cyanAccent,
duration: Duration(milliseconds: 500),
);
or add header and bottom
headerLoading: Text("App Name"),
bottomLoading: Text("Loading..."),
For more customization, please look inside the loading animation files.
Note: all the animations come ready to go just by calling LoadingBouncingLine.square(), for example.
Many basic animations contain .circle() and .square() variations by default.
Example
To run file example, please use flutter 1.19.x or 1.20.x
