An animated loading button package in Flutter

Loading Btn

Create animated loading button using loading_btn package with lots of properties.

Getting started

Loading Btn package helps you create beautiful loading animation in your buttons with customized
loader. Loading Btn is basically an ElevatedButton widget that means you can use the usual
parameters with a few extra functionalities.

Demo

Usage

Loading Button with CircularProgress widget

LoadingBtn(
    height: 50,
    borderRadius: 8,
    animate: true,
    color: Colors.green,
    width: MediaQuery.of(context).size.width * 0.45,
    loader: Container(
        padding: const EdgeInsets.all(10),
        width: 40,
        height: 40,
        child: const CircularProgressIndicator(
            valueColor: AlwaysStoppedAnimation<Color>(Colors.white),
        ),
    ),
    child: const Text("Login"),
    onTap: (startLoading, stopLoading, btnState) async {
        if (btnState == ButtonState.idle) {
            startLoading();
            // call your network api
            await Future.delayed(const Duration(seconds: 5));
            stopLoading();
        }
    },
),

Loading Button with custom Text

LoadingBtn(
    height: 50,
    borderRadius: 8,
    roundLoadingShape: false,
    color: Colors.blueAccent,
    width: MediaQuery.of(context).size.width * 0.45,
    minWidth: MediaQuery.of(context).size.width * 0.30,
    loader: const Text("Loading..."),
    child: const Text("Login"),
    onTap: (startLoading, stopLoading, btnState) async {
        if (btnState == ButtonState.idle) {
            startLoading();
            // call your network api
            await Future.delayed(const Duration(seconds: 5));
            stopLoading();
        }
    },
),

Loading Button with custom loading

LoadingBtn(
    height: 50,
    borderRadius: 8,
    animate: true,
    color: Colors.deepOrange,
    width: MediaQuery.of(context).size.width * 0.45,
    loader: Container(
      padding: const EdgeInsets.all(10),
      child: const Center(
          child: SpinKitDoubleBounce(
            color: Colors.white,
          ),
      ),
    ),
    child: const Text("Login"),
    onTap: (startLoading, stopLoading, btnState) async {
        if (btnState == ButtonState.idle) {
            startLoading();
            // call your network api
            await Future.delayed(const Duration(seconds: 5));
            stopLoading();
        }
    },
),

Properties

• animate(Default false) : It uses width to animate while click on button
• roundLoadingShape(Default true) : It uses borderRadius to creates a round button while in Busy/Loading state
• width : Width of the button when in Idle state
• minWidth : Width of the button when in Busy/Loading state. Default value is equal to height in order to create a completely round loading button
• borderRadius : Border Radius of the button
• borderSide : BorderSide in order to give border color and width to the button
• child : Contents of button when in Idle state
• loader : Contents of button when in Busy/Loading state
• onTap : (startLoading, stopLoading, btnState) : Function that is called when you click on the button
• duration : Duration of the animation
• curve : Curve of animation
• reverseCurve : Curve of reverse animation

MIT License

Copyright (c) 2022 Yasin Mohammadi

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the “Software”), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.