ModifierModule/app/src/main/java/com/example/modifiermodule/ConfigFileObserver.java

package com.example.modifiermodule;

import android.os.FileObserver;
import android.util.Log;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;

import java.io.File;
import java.util.List;

public class ConfigFileObserver extends FileObserver {
    interface ConfigFileObserverListener {
        void onConfigChanged();
    }

    private ConfigFileObserverListener listener;

    public ConfigFileObserver(@NonNull File file, ConfigFileObserverListener listener) {
        super(file, FileObserver.CLOSE_WRITE);
        this.listener = listener;
    }

    @Override
    public void onEvent(int event, @Nullable String path) {
        Log.i("ConfigFileObserver", "onEvent: " + event + " " + path);
        if (listener != null) {
            listener.onConfigChanged();
        }
    }
}