85 lines
2.5 KiB
Dart
Executable File
85 lines
2.5 KiB
Dart
Executable File
import 'dart:async';
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import 'package:flutter/services.dart';
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const int overlaySizeFill = -1;
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const String _mainAppMethodChannel = "com.phan_tech./flutter_overlay_apps";
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const String _overlayAppMethodChannel =
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"com.phan_tech/flutter_overlay_apps/overlay";
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const String _overlayAppMessageChannel =
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"com.phan_tech/flutter_overlay_apps/overlay/messenger";
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class FlutterOverlayApps {
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static const MethodChannel _channel = MethodChannel(_mainAppMethodChannel);
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// overlay methodChanel
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static const MethodChannel _overlayChannel =
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MethodChannel(_overlayAppMethodChannel);
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//Overlay BasicMessageChannel
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static const BasicMessageChannel _overlayMessageChannel =
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BasicMessageChannel(_overlayAppMessageChannel, JSONMessageCodec());
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/// Open overLay content
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/// Takes optional;
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/// - int [height] default is [overlaySizeFill]
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/// - int [width] default is [overlaySizeFill]
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/// - OverlayAlignment [width] default is [alignment] [OverlayAlignment.center]
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/// - bool [closeOnBackButton] default is `true`
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static Future<bool?> showOverlay(
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{int height = overlaySizeFill,
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int width = overlaySizeFill,
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bool closeOnBackButton = true,
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OverlayAlignment alignment = OverlayAlignment.center}) async {
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final bool? _res = await _channel.invokeMethod('showOverlay', {
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"height": height,
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"width": width,
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"alignment": alignment.name,
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"closeOnBackButton": closeOnBackButton
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});
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return _res;
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}
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/// Closes overlau if open
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static Future<bool?> closeOverlay() async {
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final bool? _res = await _overlayChannel.invokeMethod('close');
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return _res;
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}
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/// broadcast data to and from overlay app
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/// the supported data type are;
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/// - [int], [double], [bool], [String], null
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/// - [List] of supported types
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/// - [Map] of supported types
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static Future sendDataToAndFromOverlay(dynamic data) async {
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return await _overlayMessageChannel.send(data);
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}
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/// Streams message shared between overlay and main app
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static final StreamController _controller = StreamController();
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static StreamController overlayListener() {
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_overlayMessageChannel.setMessageHandler((message) async {
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_controller.add(message);
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return message;
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});
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return _controller;
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}
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/// dispose overlay controller
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static void disposeOverlayListener() {
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_controller.close();
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}
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}
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/// Overlay alignment on screen
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enum OverlayAlignment {
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topLeft,
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topCenter,
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topRight,
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centerLeft,
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center,
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centerRight,
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bottomLeft,
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bottomCenter,
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bottomRight
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}
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