我正在开发一个使用 AccessibilityService 记录按键并执行参数为按键的回调。我在这里使用这个服务的代码，只是做了一些小改动。我遇到的问题是辅助功能服务没有显示在系统设置中。现在，我刚刚在android清单中添加了xml。我正在使用以下代码：
插件.xml

<?xml version="1.0" encoding="UTF-8"?>
<plugin xmlns="http://apache.org/cordova/ns/plugins/1.0"
    xmlns:android="http://schemas.android.com/apk/res/android"
    id="cordova-plugin-keylogger"
    version="1.0.0">
    <name>KeyLogger</name>
    <description>Cordova Keylogger Plugin</description>
    <license>Apache 2.0</license>
    <keywords>cordova,keyevents</keywords>

    <js-module src="www/keylogger.js" name="device">
        <clobbers target="Keylogger" />
    </js-module>

    <!-- android -->
    <platform name="android">
        <config-file target="res/xml/config.xml" parent="/*">
            <feature name="keylogger" >
                <param name="android-package" value="org.apache.cordova.keylogger"/>
            </feature>
        </config-file>

        <source-file src="src/android/KeyLogger.java" target-dir="src/org/apache/cordova/keylogger" />
        <source-file src="src/android/KeyCallBack.java" target-dir="src/org/apache/cordova/keylogger" />
        <source-file src="src/android/KeyLoggerAccessibilityService.java" target-dir="src/org/apache/cordova/keylogger" />
    </platform>
</plugin>

键盘记录器.js

(function () {
    var exec = require('cordova/exec');
    var channel = require('cordova/channel');
    var modulemapper = require('cordova/modulemapper');
    var urlutil = require('cordova/urlutil');

    function KeyLogger() {
        this.channels = {
            keypress: channel.create('keypress'),
        };
    }

    KeyLogger.prototype = {
        _eventHandler: function (event) {
            if (event && event.type in this.channels) {
                this.channels[event.type].fire(event);
            }
        },
        stop: function (eventname) {
            exec(null, null, 'KeyLogger', 'stop', []);
        },
        addEventListener: function (eventname, f) {
            if (eventname in this.channels) {
                this.channels[eventname].subscribe(f);
            }
        },
        removeEventListener: function (eventname, f) {
            if (eventname in this.channels) {
                this.channels[eventname].unsubscribe(f);
            }
        },
    };

    module.exports = function (callback) {
        const kl = new KeyLogger();

        kl.addEventListener('keypress', callback);

        var cb = function (eventname) {
            kl._eventHandler(eventname);
        };

        exec(cb, cb, 'KeyLogger', 'start', []);
        return kl;
    };
})();

键盘记录器.java

package org.apache.cordova.keylogger;

import org.apache.cordova.PluginResult;
import org.apache.cordova.CordovaArgs;
import org.json.JSONException;
import org.json.JSONObject;
import org.apache.cordova.CallbackContext;
import org.apache.cordova.CordovaPlugin;

public class KeyLogger extends CordovaPlugin {
    private CallbackContext callbackContext;
    private KeyCallBack callback;
    private KeyLoggerAccessibilityService accessibilityservice;

    public boolean execute(String action, CordovaArgs args, final CallbackContext callbackContext)
            throws JSONException {
        if (action == "start") {
            this.callbackContext = callbackContext;
            this.callback.set(callbackContext);
            this.accessibilityservice.setKeyCallBack(this.callback);
        } else if (action == "stop") {
            this.accessibilityservice.disableSelf();
        } else {
            return false;
        }
        return true;
    }
}

keyloggeraccessibilityservice.java文件

package org.apache.cordova.keylogger;

import android.accessibilityservice.AccessibilityService;
import android.view.accessibility.AccessibilityEvent;
import android.accessibilityservice.AccessibilityServiceInfo;

public class KeyLoggerAccessibilityService extends AccessibilityService {

    KeyCallBack callback;

    @Override
    public void onAccessibilityEvent(AccessibilityEvent event) {
        String text = "";
        text = text + event.getText();
        this.callback.send(text);
    }

    @Override
    public void onInterrupt() {
        // whatever
    }

    @Override
    public void onServiceConnected() {
        // configure our Accessibility service
        AccessibilityServiceInfo info = getServiceInfo();
        info.eventTypes = AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED;
        info.feedbackType = AccessibilityServiceInfo.FEEDBACK_SPOKEN;
        info.notificationTimeout = 100;
        this.setServiceInfo(info);
    }

    void setKeyCallBack(KeyCallBack cb) {
        this.callback = cb;
    }
}

keycallback.java文件

package org.apache.cordova.keylogger;

import org.apache.cordova.PluginResult;
import org.apache.cordova.LOG;
import org.json.JSONException;
import org.json.JSONObject;
import org.apache.cordova.CallbackContext;

public class KeyCallBack {
    private CallbackContext callbackContext;

    public void set(CallbackContext cc) {
        this.callbackContext = cc;
    }

    public void send(String s) {
        try {
            JSONObject obj = new JSONObject();
            obj.put("type", "keypress");
            obj.put("keypress", s);
            this.sendUpdate(obj);
        } catch (JSONException ex) {
            LOG.d("KeyLogger", "Should never happen");
        }
    }

    private void sendUpdate(JSONObject obj) {
        sendUpdate(obj, true, PluginResult.Status.OK);
    }

    private void sendUpdate(JSONObject obj, boolean keepCallback, PluginResult.Status status) {
        if (callbackContext != null) {
            PluginResult result = new PluginResult(status, obj);
            result.setKeepCallback(keepCallback);
            callbackContext.sendPluginResult(result);
            if (!keepCallback) {
                callbackContext = null;
            }
        }
    }
}

大部分代码都是从inappbrowser插件复制的，然后修改。
如果我的方法不正确，请指导我正确的方向。