【发布时间】：2015-08-23 14:57:42
【问题描述】：
我目前正在开发一个使用 Ionic/Cordova 的 Android 应用程序的项目。在这个应用程序中，我们需要使用EAP TTLS 自动连接到 wifi 网络，为此我们正在开发一个 cordova 插件。
正如许多教程所建议的那样，我们通过创建一个完全符合我们要求的 Android 应用来开始开发。接下来，我们把它变成了一个插件。到那时一切都很好，我们实现了所需的功能并将插件添加到 Ionic 项目中而没有错误。
现在，当我们执行命令 ionic build 时，我们会收到许多与插件中使用的导入相关的错误，例如：
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiEnterpriseConfig;
import android.net.wifi.WifiManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
从开发之前所做的所有研究中，我们了解到任何可以直接为 Android 开发的应用程序都可以变成插件。因此，我认为我们在开发过程中遗漏了一个重要步骤或采取了错误的方法。
谁能帮我解决这个问题或给我指点构建 Ionic/Cordova 插件的正确方法？
这是错误日志的副本：
ConnectivityChangeReceiver.java:19: error: cannot find symbol
import com.wbinnova.adsfinetworkplugin.R;
^
symbol: class R
location: package com.wbinnova.adsfinetworkplugin
ConnectionActivity.java:9: error: package android.support.v7.app does not exist
import android.support.v7.app.ActionBarActivity;
^
ConnectionActivity.java:17: error: cannot find symbol
public class ConnectionActivity extends ActionBarActivity {
^
symbol: class ActionBarActivity
ScanActivity.java:13: error: package android.support.v7.app does not exist
import android.support.v7.app.ActionBarActivity;
^
ScanActivity.java:21: error: cannot find symbol
public class ScanActivity extends ActionBarActivity {
^
symbol: class ActionBarActivity
ConnectivityChangeReceiver.java:93: error: package R does not exist
Notification notification = new Notification(R.mipmap.ic_launcher, "Red Ads-Fi disponible", System.currentTimeMillis());
^
ConnectionActivity.java:24: error: cannot find symbol
super.onCreate(savedInstanceState);
^
symbol: variable super
location: class ConnectionActivity
ConnectionActivity.java:27: error: cannot find symbol
wifiManag = (WifiManager) getSystemService(Context.WIFI_SERVICE);
^
symbol: method getSystemService(String)
location: class ConnectionActivity
ConnectionActivity.java:53: error: no suitable constructor found for Builder(ConnectionActivity)
AlertDialog.Builder builder = new AlertDialog.Builder(ConnectionActivity.this);
^
constructor Builder.Builder(Context,int) is not applicable
(actual and formal argument lists differ in length)
constructor Builder.Builder(Context) is not applicable
(actual argument ConnectionActivity cannot be converted to Context by method invocation conversion)
ConnectionActivity.java:22: error: method does not override or implement a method from a supertype
@Override
^
ConnectionActivity.java:62: error: package R does not exist
getMenuInflater().inflate(R.menu.menu_main, menu);
^
ConnectionActivity.java:62: error: cannot find symbol
getMenuInflater().inflate(R.menu.menu_main, menu);
^
symbol: method getMenuInflater()
location: class ConnectionActivity
ConnectionActivity.java:59: error: method does not override or implement a method from a supertype
@Override
^
ConnectionActivity.java:71: error: package R does not exist
if (id == R.id.action_settings) {
^
ConnectionActivity.java:75: error: cannot find symbol
return super.onOptionsItemSelected(item);
^
symbol: variable super
location: class ConnectionActivity
ConnectionActivity.java:66: error: method does not override or implement a method from a supertype
@Override
^
ScanActivity.java:35: error: cannot find symbol
super.onCreate(savedInstanceState);
^
symbol: variable super
location: class ScanActivity
ScanActivity.java:36: error: package R does not exist
setContentView(R.layout.activity_main);
^
ScanActivity.java:39: error: cannot find symbol
mainWifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
^
symbol: method getSystemService(String)
location: class ScanActivity
ScanActivity.java:33: error: method does not override or implement a method from a supertype
@Override
^
ScanActivity.java:54: error: package R does not exist
getMenuInflater().inflate(R.menu.menu_main, menu);
^
ScanActivity.java:54: error: cannot find symbol
getMenuInflater().inflate(R.menu.menu_main, menu);
^
symbol: method getMenuInflater()
location: class ScanActivity
ScanActivity.java:51: error: method does not override or implement a method from a supertype
@Override
^
ScanActivity.java:63: error: package R does not exist
if (id == R.id.action_settings) {
^
ScanActivity.java:67: error: cannot find symbol
return super.onOptionsItemSelected(item);
^
symbol: variable super
location: class ScanActivity
ScanActivity.java:58: error: method does not override or implement a method from a supertype
@Override
^
ScanActivity.java:74: error: cannot find symbol
mainWifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
^
symbol: method getSystemService(String)
location: class ScanActivity
ScanActivity.java:99: error: cannot find symbol
WifiManager wifiManag = (WifiManager) getSystemService(Context.WIFI_SERVICE);
^
symbol: method getSystemService(String)
location: class ScanActivity
ScanActivity.java:153: error: cannot find symbol
Intent intent2 = new Intent(ScanActivity.this, ConectionActivity.class);
^
symbol: class ConectionActivity
location: class ScanActivity
ScanActivity.java:154: error: cannot find symbol
startActivity(intent2);
^
symbol: method startActivity(Intent)
location: class ScanActivity
【问题讨论】：
-
即使我也面临同样的问题。文档中没有提到如何添加依赖项。
标签： android cordova plugins ionic-framework cordova-plugins