[local_auth] - Unhandled Exception: PlatformException(no_fragment_activity #41119
Description
An error was encountered when the fingerprint validation method is called on android devices.
Error:
E/flutter (13796): [ERROR:flutter/lib/ui/ui_dart_state.cc(148)] Unhandled Exception: PlatformException(no_fragment_activity, local_auth plugin requires activity to be a FragmentActivity., null)
E/flutter (13796): #0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:569:7)
E/flutter (13796): #1 MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:316:33)
E/flutter (13796): <asynchronous suspension>
E/flutter (13796): #2 LocalAuthentication.authenticateWithBiometrics (package:local_auth/local_auth.dart:89:27)
E/flutter (13796): <asynchronous suspension>
E/flutter (13796): #3 FingerService.verify (package:projeto2/service/finger.service.dart:14:31)
E/flutter (13796): <asynchronous suspension>
E/flutter (13796): #4 _LoginPageState._finger (package:projeto2/pages/login.page.dart:193:36)
E/flutter (13796): <asynchronous suspension>
E/flutter (13796): #5 _LoginPageState._body.<anonymous closure> (package:projeto2/pages/login.page.dart:123:21)
E/flutter (13796): #6 _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:654:14)
E/flutter (13796): #7 _InkResponseState.build.<anonymous closure> (package:flutter/src/material/ink_well.dart:729:32)
E/flutter (13796): #8 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:182:24)
E/flutter (13796): #9 TapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:365:11)
E/flutter (13796): #10 TapGestureRecognizer.acceptGesture (package:flutter/src/gestures/tap.dart:312:7)
E/flutter (13796): #11 GestureArenaManager.sweep (package:flutter/src/gestures/arena.dart:156:27)
E/flutter (13796): #12 GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:222:20)
E/flutter (13796): #13 GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:198:22)
E/flutter (13796): #14 GestureBinding._handlePointerEvent (package:flutter/src/gestures/binding.dart:156:7)
E/flutter (13796): #15 GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:102:7)
E/flutter (13796): #16 GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:86:7)
E/flutter (13796): #17 _rootRunUnary (dart:async/zone.dart:1136:13)
E/flutter (13796): #18 _CustomZone.runUnary (dart:async/zone.dart:1029:19)
E/flutter (13796): #19 _CustomZone.runUnaryGuarded (dart:async/zone.dart:931:7)
E/flutter (13796): #20 _invoke1 (dart:ui/hooks.dart:263:10)
E/flutter (13796): #21 _dispatchPointerDataPacket (dart:ui/hooks.dart:172:5)
Solution:
- In : android/app/src/main/kotlin/../project/MainActivity.kt, alter to:
import android.os.Bundle
import io.flutter.app.FlutterFragmentActivity
import io.flutter.plugins.GeneratedPluginRegistrant
class MainActivity: FlutterFragmentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
GeneratedPluginRegistrant.registerWith(this)
}
}
in gradle.properties file:
android.useAndroidX=true
android.enableJetifier=true