[Flutter] Flutter application restart instead of resuming after invoking method from native...

I currently doing payment integration in Flutter using native Android. I manage to get the results from the payments side, I then proceed to return the result into my invoking flutter file.

Here is the passing of my code to my invoking flutter file.

Intent returnIntent = new Intent(getApplicationContext(), BackToMerchantActivity.class);
returnIntent.putExtra("resultTitle",resultPaymentMessage.getStrResultTitle());
returnIntent.putExtra("resultInfo",resultPaymentMessage.getStrResultInfo());
returnIntent.putExtra("resultExtra",resultPaymentMessage.getStrResultExtra());

startActivity(returnIntent);
finish();


Here is my invoking methods

class BackToMerchantActivity: FlutterActivity() {
private val CHANNEL = "my.com.ipay88.ipay88payment/backToMarchant"
private lateinit var _result: MethodChannel.Result

override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
GeneratedPluginRegistrant.registerWith(this)
print("Enter Back To Merchant \n");

val resultTitle: String = intent.getStringExtra("resultTitle") ?: ""
val resultInfo: String = intent.getStringExtra("resultInfo") ?: ""
val resultExtra: String = intent.getStringExtra("resultExtra") ?: ""

print("Result title : " + resultTitle +" \n");
print("Result Info : " + resultInfo +" \n");
print("Result Extra : " + resultExtra +" \n");

MethodChannel(flutterView, CHANNEL).invokeMethod("my.com.ipay88.ipay88payment/backToMarchant", mapOf("resultTitle" to resultTitle, "resultInfo" to resultInfo, "resultExtra" to resultExtra));
}

}


The results is able to into invoking files as I am able to print it out. However the invoking flutter application from native Android will restart the whole Flutter application instead of resuming the application. Please help as I been stuck here for a week. Any tips would be really appreciated

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