platform_object_channel

Description:

platform object channel

platform_object_channel #

A Flutter plugin for create channel for platform object instance and dart object instance




Android
iOS
macOS




Support
SDK 19+
13.0+
10.15+



Usage #
To use this plugin, add platform_object_channel as a dependency in your pubspec.yaml file.
Example #
for dart:
final platformObjectInstance = PlatformObjectChannel(Platform.isAndroid ? "com.example.example.TestObject" : "TestObject", "arguments");
platformObjectInstance.setPlatformObjectMethodCallHandler(
(method, arguments) async {
if (method == "sayHi") {
return "reply from flutter";
}
},
);
Future(() async {
_methodResult = await platformObjectInstance.invokeMethod("sayHi", "im flutter");
setState(() {});
});
Future(() async {
await for (var element in platformObjectInstance.invokeMethodStream("sayHi_10", "im flutter, 10")) {
setState(() {
_streamMethodResult = element;
});
}
});
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for iOS and macOS:
@objc(TestObject)
class TestObject : NSObject, FoundationPlatformObject{
required init(_ flutterArgs: Any?, _ messager: FoundationPlatformObjectMessenger) {
self.messager = messager
}
let messager: FoundationPlatformObjectMessenger
func handleFlutterMethodCall(_ method: String, _ arguments: Any?) async -> Any? {
Task {
var result = await messager.invokeMethod("sayHi", "hi")
print("flutter return \(result ?? "")")
}
return "Hi"
}

func handleFlutterStreamMethodCall(_ method: String, _ arguments: Any?, _ sink: platform_object_channel_foundation.FoundationPlatformStreamMethodSink) {
var count = 10
Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { timer in
count -= 1
if count <= 0 {
timer.invalidate()
sink.done()
}else {
sink.add("Hi \(count)")
}
}
}

func dispose() {

}

}
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for Android:
class TestObject() : AndroidPlatformObject {
private lateinit var messager: AndroidPlatformObjectMessenger
override fun setUp(flutterArgs: Any?, messager: AndroidPlatformObjectMessenger) {
this.messager = messager
}

override suspend fun handleFlutterMethodCall(method: String, arguments: Any?): Any? {
GlobalScope.launch(Dispatchers.Default) {
var result = messager.invokeMethod("sayHi", "hi")
print("flutter return $result")
}
return "Hi"
}

override fun handleFlutterStreamMethodCall(
method: String,
arguments: Any?,
sink: AndroidPlatformStreamMethodSink
) {
var count = 0
GlobalScope.launch {
while (true) {
count++
if(count > 10){
sink.done()
}else{
sink.add(count)
}
delay(1000)
}
}
}

override fun dispose() {
}
}
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