71 lines
2.0 KiB
Dart
71 lines
2.0 KiB
Dart
import 'package:flutter/services.dart';
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import 'platform_interface.dart';
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const MethodChannel _channel = MethodChannel('flutter_midi');
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class MethodChannelUrlLauncher extends FlutterMidiPlatform {
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/// Needed so that the sound font is loaded
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/// On iOS make sure to include the sound_font.SF2 in the Runner folder.
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/// This does not work in the simulator.
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@override
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Future<String?> prepare({
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required ByteData? sf2,
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String name = 'instrument.sf2',
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}) async {
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return _channel.invokeMethod<String>('prepare_midi', {
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'name': name,
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'data': sf2,
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});
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}
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/// Needed so that the sound font is loaded
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/// On iOS make sure to include the sound_font.SF2 in the Runner folder.
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/// This does not work in the simulator.
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@override
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Future<String?> changeSound({
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required ByteData? sf2,
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String name = 'instrument.sf2',
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}) async {
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return _channel.invokeMethod<String>('change_sound', {
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'name': name,
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'data': sf2,
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});
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}
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/// Unmute the device temporarily even if the mute switch is on or toggled in settings.
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@override
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Future<String?> unmute() {
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return _channel.invokeMethod<String>('unmute');
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}
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/// Use this when stopping the sound onTouchUp or to cancel a long file.
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/// Not needed if playing midi onTap.
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/// Stop with velocity in the range between 0-127
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@override
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Future<String?> stopMidiNote({
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required int midi,
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int velocity = 64,
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}) {
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return _channel.invokeMethod<String>('stop_midi_note', {
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'note': midi,
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'velocity': velocity,
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});
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}
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/// Play a midi note from the sound_font.SF2 library bundled with the application.
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/// Play a midi note in the range between 0-127
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/// Play with velocity in the range between 0-127
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/// Multiple notes can be played at once as separate calls.
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@override
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Future<String?> playMidiNote({
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required int midi,
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int velocity = 64,
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}) {
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return _channel.invokeMethod<String>('play_midi_note', {
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'note': midi,
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'velocity': velocity,
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});
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}
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}
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