问题描述
我正在尝试在Flutter应用中构建指纹识别器,而我正在使用local_auth package ...问题是我总是低于错误-
PlatformException(no_fragment_activity,local_auth plugin requires activity to be a FragmentActivity.,null)
我尝试将FragmentActivity添加到MainActivity.kt,但是它不起作用..这是文件夹的结构...所以我应该创建MainActivity.java吗?我应该在哪里将MainActivity.java放在文件夹中?
这是我MainActivity.kt的内容
package com.project
import androidx.annotation.NonNull;
import io.Flutter.embedding.android.FlutterActivity
import io.Flutter.embedding.engine.FlutterEngine
import io.Flutter.plugins.GeneratedpluginRegistrant
class MainActivity: FlutterActivity() {
override fun configureFlutterEngine(@NonNull FlutterEngine: FlutterEngine) {
GeneratedpluginRegistrant.registerWith(FlutterEngine);
}
}
解决方法
这里是如何用Kotlin做到
import androidx.annotation.NonNull;
import io.flutter.embedding.android.FlutterFragmentActivity;
import io.flutter.embedding.android.FlutterActivity;
import io.flutter.embedding.engine.FlutterEngine;
import io.flutter.plugins.GeneratedPluginRegistrant;
import android.os.Build
import android.view.WindowManager
import android.view.ViewTreeObserver
class MainActivity: FlutterFragmentActivity() {
override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
GeneratedPluginRegistrant.registerWith(flutterEngine);
}
}