some changes

android/app/src/main/kotlin/com/example/absensi/MainActivity.kt

@@ -1,6 +1,23 @@
 package com.example.absensi
 
+import kotlin.random.Random
+import androidx.annotation.NonNull
 import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.engine.FlutterEngine
+import io.flutter.plugin.common.MethodChannel
 
 class MainActivity: FlutterActivity() {
-}
+    override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
+        super.configureFlutterEngine(flutterEngine)
+        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, "example.com/channel").setMethodCallHandler {
+                call, result ->
+            if(call.method == "getRandomNumber") {
+                val rand = Random.nextInt(100)
+                result.success(rand)
+            }
+            else {
+                result.notImplemented()
+            }
+        }
+    }
+}