start flutter plugin

android/app/src/main/java/kz/com/aman/kassa/bank/BankNfcPlugins.java

@@ -0,0 +1,77 @@
+package kz.com.aman.kassa.bank;
+
+import android.app.Activity;
+import android.widget.Toast;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import io.flutter.plugin.common.MethodCall;
+import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
+import io.flutter.plugin.common.MethodChannel.Result;
+import kz.com.aman.kassa.bank.permissions.PermissionsManager;
+import kz.com.aman.kassa.bank.permissions.PermissionsManagerImpl;
+import ru.m4bank.mpos.library.M4BankMposClientInterfaceFacade;
+
+public class BankNfcPlugins implements MethodCallHandler {
+    //main activity
+    private Activity activity;
+
+    private String timer;
+
+    //main client all work with him
+    private M4BankMposClientInterfaceFacade clientInterface;
+    //permissions
+    private PermissionsManager permissionsManager;
+
+    public BankNfcPlugins(Activity activity) {
+        this.activity = activity;
+    }
+
+    @Override
+    public void onMethodCall(MethodCall call, Result result) {
+        switch (call.method) {
+            case "init":
+                PermissionsManager.PermissionsCheckResultHandler permissionsCheckResultHandler =
+                        new PermissionsManager.PermissionsCheckResultHandler() {
+                            @Override
+                            public void onPermissionsGranted() {
+                                System.out.println("granted");
+                                activity.runOnUiThread(() -> Toast.makeText(activity, "Granted", Toast.LENGTH_SHORT).show());
+                                //init();
+                            }
+
+                            @Override
+                            public void onPermissionsDeclined() {
+                                System.out.println("Declined");
+                                //init();
+                            }
+                        };
+                permissionsManager = new PermissionsManagerImpl(this.activity);
+                permissionsManager.checkPermissions(permissionsCheckResultHandler);
+
+
+
+                if(timer==null){
+                    timer = "inited)";
+                    activity.runOnUiThread(() -> Toast.makeText(activity, "Initialize", Toast.LENGTH_SHORT).show());
+                } else {
+                    activity.runOnUiThread(() -> Toast.makeText(activity, "Already Initialize", Toast.LENGTH_SHORT).show());
+                }
+
+                result.success("pong - 3");
+                break;
+            case "get":
+                final List<Object> json = new ArrayList<>();
+                for (int i =0; i < 2 ; i++) {
+                    json.add("{\"name:\":\"test\" }"); // Map<String, Object> entries
+                }
+                result.success(json);
+                break;
+            default:
+                result.notImplemented();
+        }
+    }
+
+    // Other methods elided.
+}

android/app/src/main/java/kz/com/aman/kassa/bank/MusicPlugin.java

@@ -1,34 +0,0 @@
-package kz.com.aman.kassa.bank;
-
-import android.content.Intent;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import io.flutter.plugin.common.MethodCall;
-import io.flutter.plugin.common.MethodChannel;
-import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
-import io.flutter.plugin.common.MethodChannel.Result;
-
-public class MusicPlugin implements MethodCallHandler {
-    @Override
-    public void onMethodCall(MethodCall call, Result result) {
-        switch (call.method) {
-            case "ping":
-
-                result.success("pong - 3");
-                break;
-            case "get":
-                final List<Object> json = new ArrayList<>();
-                for (int i =0; i < 2 ; i++) {
-                    json.add("{\"name:\":\"test\" }"); // Map<String, Object> entries
-                }
-                result.success(json);
-                break;
-            default:
-                result.notImplemented();
-        }
-    }
-
-    // Other methods elided.
-}

android/app/src/main/kotlin/kz/com/aman/kassa/MainActivity.kt

@@ -8,7 +8,7 @@ import io.flutter.embedding.engine.FlutterEngine
 import io.flutter.plugin.common.MethodChannel
 import io.flutter.plugins.GeneratedPluginRegistrant
 import kz.com.aman.kassa.bank.M4BankActivity
-import kz.com.aman.kassa.bank.MusicPlugin
+import kz.com.aman.kassa.bank.BankNfcPlugins
 
 
 class MainActivity: FlutterActivity() {
@@ -19,7 +19,7 @@ class MainActivity: FlutterActivity() {
 
     override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
         GeneratedPluginRegistrant.registerWith(flutterEngine);
-        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, BANK_CHANNEL).setMethodCallHandler(MusicPlugin());
+        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, BANK_CHANNEL).setMethodCallHandler(BankNfcPlugins(this.activity));
         MethodChannel(flutterEngine.dartExecutor.binaryMessenger, ACTIVITY_CHANNEL).setMethodCallHandler {
             // Note: this method is invoked on the main thread.
             call, result ->

lib/views/bank_view/bank_view.dart

@@ -25,7 +25,7 @@ class _BankViewState extends State<BankView> {
     setState(() {
       loading = true;
     });
-    String result = await _channel.invokeMethod('ping');
+    String result = await _channel.invokeMethod('init');
 
     setState(() {
       value = result ?? 'none';