flutter 中的 PlatformException（no_fragment_activity，local_auth 插件要求活动为 FragmentActivity。，null）

Question

我正在尝试使用 flutter 的local_auth package 添加 Figureprint 身份验证，我使用了相同的示例，因为 package 这里是. 我收到了这个错误

I/flutter (27676): PlatformException(no_fragment_activity, local_auth plugin requires activity to be a FragmentActivity., null)

我试过这个解决方案但问题是我不知道kotlin 。

这是我的Mainactivity.kt

package com.example.bio_met

import io.flutter.embedding.android.FlutterActivity

class MainActivity: FlutterActivity() {
}

Answer 1

我找到了答案，它对我有用。 这里只是用MainActivity.kt文件中的以下代码替换您的代码。

package //your package name for eg.com.example.filename

import androidx.annotation.NonNull;
import io.flutter.embedding.android.FlutterActivity
import io.flutter.embedding.android.FlutterFragmentActivity
import io.flutter.embedding.engine.FlutterEngine
import io.flutter.plugins.GeneratedPluginRegistrant

class MainActivity: FlutterFragmentActivity() {
    override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine){
        GeneratedPluginRegistrant.registerWith(flutterEngine);
    }
}

Answer 2

 at io.flutter.plugins.GeneratedPluginRegistrant.registerWith(Unknown Source:90)
 at it.wytex.vibeland_client.MainActivity.l(Unknown Source:5)
 at io.flutter.embedding.android.i.l(Unknown Source:10)
 at io.flutter.embedding.android.e.k(Unknown Source:58)
 at io.flutter.embedding.android.i.x0(Unknown Source:10)
 at androidx.fragment.app.Fragment.c1(Unknown Source:21)
 at androidx.fragment.app.j.R0(Unknown Source:433)
 at androidx.fragment.app.o.b(Unknown Source:206)
 at androidx.fragment.app.o.c(Unknown Source:18)
 at androidx.fragment.app.o.C(Unknown Source:36)
 at androidx.fragment.app.j.n0(Unknown Source:110)
 at androidx.fragment.app.j.Z0(Unknown Source:88)
 at androidx.fragment.app.j.l0(Unknown Source:21)
 at androidx.fragment.app.j.e0(Unknown Source:9)
 at androidx.fragment.app.j.y(Unknown Source:6)
 at androidx.fragment.app.f.c(Unknown Source:4)
 at androidx.fragment.app.d.onStart(Unknown Source:15)
 at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1433)
 at android.app.Activity.performStart(Activity.java:7923)
 at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3332)
 at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:221)
 at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:201)
 at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:173)
 at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2044)
 at android.os.Handler.dispatchMessage(Handler.java:107)
 at android.os.Looper.loop(Looper.java:224)
 at android.app.ActivityThread.main(ActivityThread.java:7562)
 at java.lang.reflect.Method.invoke(Native Method)
 at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:539)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)```