df_async_loader

df_async_loader is a Flutter package that provides a static method to wait for an asynchronous task to complete while displaying a loading dialog. It simplifies handling async tasks by offering built-in user feedback, helping you manage loading states seamlessly in your app.

Features

  • Async Task Execution: Run any asynchronous function with a loading dialog automatically displayed during task execution.
  • Simple Integration: Easy to implement in your Flutter projects, ensuring smooth user experiences during long-running operations.
  • Customizable Callback: Trigger actions when the async task is complete using the provided callback.

Example

 DfAsyncLoader.showLoader<String>(
  context: context,
  callback: () async {
    // Simulating a delay and returning a string result.
    await Future.delayed(const Duration(seconds: 2));
    return "RESULT!";
  },
  onFinished: (res) {
    // Show a message with the result when the task completes.
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(content: Text("CALLED STRING FUNCTION result = $res")),
    );
  },
);

Example with custom loading widget

 DfAsyncLoader.showLoader<EgObject>(
      context: context,
      customBody: const SizedBox(
        height: 12,
        child: LinearProgressIndicator(),
      ),
      callback: () async {
        // Simulating a delay and returning a custom object.
        await Future.delayed(const Duration(seconds: 2));
        return const EgObject(
          value1: "Value 1",
          value2: false,
        );
      },
      onFinished: (res) {
        // Show a message with the object's values when the task completes.
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(
              content: Text(
                  "CALLED OBJECT FUNCTION values = ${res.value1} & ${res.value2}")),
        );
      },
    );

Installation

Add df_async_loader to your pubspec.yaml:

dependencies:

df_async_loader: ^1.0.0 Then, run: flutter pub get

Usage

  • Call the DfAsyncLoader.showLoader<T>() method, passing your context, the async callback, and the onFinished function to handle the result once the task completes.

Libraries

df_async_loader
df_settings