hardware_buttons

A Flutter plugin for iOS and Android for detecting various hardware buttons.

Note: This plugin is still under development, and some APIs might not be available yet. Feedback and Pull Requests are most welcome!

Screenshots

Features

Detect volume buttons
Detect home button
To be added...

Android specification

In order to listen to volume button events, this plugin inevitably requests for ACTION_MANAGER_OVERLAY_PERMISSION. This may surprise users, so we recommend notifying users beforehand.

iOS specification

No VOLUME_DOWN events are emitted when the volume is already at its minimum. VOLUME_UP events vice versa. On the other hand, events always occur whenever user presses the button on Android.

Usage

Import the package

To use this plugin, follow the plugin installation instructions.

Use the plugin

Add the following import to your Dart code:

import 'package:hardware_buttons/hardware_buttons.dart';

In order to listen to volume button events, use volumeButtonEvents.listen as below:

StreamSubscription _volumeButtonSubscription;

@override
void initState() {
  super.initState();
  _volumeButtonSubscription = volumeButtonEvents.listen((VolumeButtonEvent event) {
    // do something
    // event is either VolumeButtonEvent.VOLUME_UP or VolumeButtonEvent.VOLUME_DOWN
  });
}

@override
void dispose() {
  super.dispose();
  // be sure to cancel on dispose
  _volumeButtonSubscription?.cancel();
}

Similarly, you can listen to home button events using homeButtonEvents.listen.

Example

Find the example wiring in the example app.

API details

See the hardware_buttons.dart for more API details.

Issues and feedback

Please file issues to send feedback or report a bug. Thank you!

YKW93/flutter_hardware_buttons