Flutter & Shared_Preference & Intro Slider: Shared_Preference istisna oluşturur

Question

Flutter & Shared_Preference & Intro Slider: Shared_Preference istisna oluşturur. Bir giriş kaydırıcısı oluşturmak istedim. Bu yüzden, shared_preference (kullanıcının uygulamayı ilk kez kullanıp kullanmadığını tespit et) ve intro_slider eklentisini kullanıyorum. Bazı nedenlerden dolayı, öykünücümü hemen durduran bu istisna hatasını aldım. Diğer bir deyişle, uygulama yüklendi ancak uygulamadan atıldım ve çalışma sürecim durdu.

Uygulama zaten kurulu olduğu için manuel olarak açmaya çalıştım. Ve iyi çalıştı.

Çalışan sürecim neden durdu? Neden süreçten atıldım?

Ana kod

import 'package:PhotoEarn/screens/wrapper.dart';
import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';

import 'introduction_slider/introduction_slider.dart';

class AppStarter extends StatefulWidget {
  @override
  _AppStarterState createState() => _AppStarterState();
}

class _AppStarterState extends State<AppStarter> {
  @override
  void initState() {
    super.initState();
    //  checkIsFirstTime();
  }

  Future<Widget> checkIsFirstTime() async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    final bool isFirstTime = prefs.getBool('isFirstTime');

    // check is null or true
    if (isFirstTime == null || isFirstTime) {
      prefs.setBool('isFirstTime', false);
      Navigator.pushReplacement(
        context,
        MaterialPageRoute(
          builder: (context) => IntroductionSlider(),
          //builder: (context) => ImageEvaluation(),
          //builder: (context) => CameraTwo(),
        ),
      );
    } else {
      Navigator.pushReplacement(
        context,
        MaterialPageRoute(
          builder: (context) => Wrapper(),
          //builder: (context) => ImageEvaluation(),
          //builder: (context) => CameraTwo(),
        ),
      );
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold();
  }
}

Hata mesajı

(base) Punreachs-MacBook-Pro:PhotoEarn punreachrany$ flutter run Using hardware rendering with device AOSP on IA Emulator. If you notice graphics artifacts, consider enabling software rendering with "--enable-software-rendering". Launching lib/main.dart on AOSP on IA Emulator in debug mode... Running Gradle task 'assembleDebug'... Running Gradle task 'assembleDebug'... Done 7,2s ✓ Built build/app/outputs/flutter-apk/app-debug.apk. Installing build/app/outputs/flutter-apk/app.apk... 3,2s Waiting for AOSP on IA Emulator to report its views... 4ms D/EGL_emulation( 8483): eglMakeCurrent: 0xdc517240: ver 3 0 (tinfo 0xdc4a6d00) D/eglCodecCommon( 8483): setVertexArrayObject: set vao to 0 (0) 1 0 I/sterable.pe.an( 8483): Rejecting re-init on previously-failed class java.lang.Class<com.google.firebase.messaging.FirebaseMessagingService>: java.lang.VerifyError: Superclass com.google.firebase.iid.zzb of com.google.firebase.messaging.FirebaseMessagingService is declared final (declaration of 'com.google.firebase.messaging.FirebaseMessagingService' appears in /data/app/com.oysterable.pe.and-x4wuluezItpEc-2nGrSGUg==/base.apk!classes3.dex) I/sterable.pe.an( 8483): at java.lang.Class java.lang.VMClassLoader.findLoadedClass(java.lang.ClassLoader, java.lang.String) (VMClassLoader.java:-2) I/sterable.pe.an( 8483): at java.lang.Class java.lang.ClassLoader.findLoadedClass(java.lang.String) (ClassLoader.java:738) I/sterable.pe.an( 8483): at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String, boolean) (ClassLoader.java:363) I/sterable.pe.an( 8483): at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String) (ClassLoader.java:312) I/sterable.pe.an( 8483): at android.app.Service android.app.AppComponentFactory.instantiateService(java.lang.ClassLoader, java.lang.String, android.content.Intent) (AppComponentFactory.java:103) I/sterable.pe.an( 8483): at android.app.Service androidx.core.app.CoreComponentFactory.instantiateService(java.lang.ClassLoader, java.lang.String, android.content.Intent) (CoreComponentFactory.java:66) I/sterable.pe.an( 8483): at void android.app.ActivityThread.handleCreateService(android.app.ActivityThread$CreateServiceData) (ActivityThread.java:3514)
I/sterable.pe.an( 8483):   at void android.app.ActivityThread.access$1300(android.app.ActivityThread, android.app.ActivityThread$CreateServiceData) (ActivityThread.java:199)
I/sterable.pe.an( 8483):   at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1666) I/sterable.pe.an( 8483): at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:106) I/sterable.pe.an( 8483): at void android.os.Looper.loop() (Looper.java:193) I/sterable.pe.an( 8483): at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6669) I/sterable.pe.an( 8483): at java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) (Method.java:-2) I/sterable.pe.an( 8483): at void com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run() (RuntimeInit.java:493)
I/sterable.pe.an( 8483):   at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:858)
I/sterable.pe.an( 8483):                                                
D/AndroidRuntime( 8483): Shutting down VM                               
E/AndroidRuntime( 8483): FATAL EXCEPTION: main                          
E/AndroidRuntime( 8483): Process: com.oysterable.pe.and, PID: 8483      
E/AndroidRuntime( 8483): java.lang.VerifyError: Superclass com.google.firebase.iid.zzb of com.google.firebase.messaging.FirebaseMessagingService is declared final (declaration of 'com.google.firebase.messaging.FirebaseMessagingService' appears in /data/app/com.oysterable.pe.and-x4wuluezItpEc-2nGrSGUg==/base.apk!classes3.dex)
E/AndroidRuntime( 8483):        at java.lang.VMClassLoader.findLoadedClass(Native Method)
E/AndroidRuntime( 8483):        at java.lang.ClassLoader.findLoadedClass(ClassLoader.java:738)
E/AndroidRuntime( 8483):        at java.lang.ClassLoader.loadClass(ClassLoader.java:363)
E/AndroidRuntime( 8483):        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
E/AndroidRuntime( 8483):        at android.app.AppComponentFactory.instantiateService(AppComponentFactory.java:103)
E/AndroidRuntime( 8483):        at androidx.core.app.CoreComponentFactory.instantiateService(CoreComponentFactory.java:66)
E/AndroidRuntime( 8483):        at android.app.ActivityThread.handleCreateService(ActivityThread.java:3514)
E/AndroidRuntime( 8483):        at android.app.ActivityThread.access$1300(ActivityThread.java:199) E/AndroidRuntime( 8483): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1666)
E/AndroidRuntime( 8483):        at android.os.Handler.dispatchMessage(Handler.java:106)
E/AndroidRuntime( 8483):        at android.os.Looper.loop(Looper.java:193)
E/AndroidRuntime( 8483):        at android.app.ActivityThread.main(ActivityThread.java:6669)
E/AndroidRuntime( 8483):        at java.lang.reflect.Method.invoke(Native Method)
E/AndroidRuntime( 8483):        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) E/AndroidRuntime( 8483): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) I/Process ( 8483): Sending signal. PID: 8483 SIG: 9 Lost connection to device. Syncing files to device AOSP on IA Emulator... Could not update files on device: HttpException: Connection closed before full header was received, uri = http://127.0.0.1:55559/9hULGLtexbI=/ Syncing files to device AOSP on IA Emulator... (base) Punreachs-MacBook-Pro:PhotoEarn punreachrany$ 

Answer 1

Çalışan sürecim neden durdu? Neden süreçten atıldım?

Mobil uygulama geliştirmede her zaman benzer sorunlar vardır. Buna alışmalısın. Cevapların çoğu şuna benzer:

• IDE'yi yeniden başlatın,
• flutter pub cache repair,
• flutter clean.