Cordova CLI 4.3.0 load URL crash on Android

Question

Cordova CLI 4.3.0 hybrid App on android platform crash on loadURL with index.html while loading any html on Cordova Webview inside hybrid app crashes on Android platform

MainActivity.java :

package com.example.helloWorld;
import org.apache.cordova.DroidGap; 
import android.content.Intent; 
import android.content.SharedPreferences; 
import android.os.Bundle; 
public class MainAcitivity extends DroidGap { 
   public static SharedPreferences prefs; 
   public static Handler customHandler = new Handler(); 

   @Override public void onCreate(Bundle savedInstanceState) {     
   super.onCreate(savedInstanceState);
   super.setIntegerProperty("splashscreen", R.drawable.splash); 
   super.loadUrl("file:///android_asset/www/index.html");
   } 
}

Below is stacktrace

06-23 15:25:31.425: E/AndroidRuntime(18725): FATAL EXCEPTION: main
06-23 15:25:31.425: E/AndroidRuntime(18725): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.helloWorld/com.example.helloWorld.MainActivity}: java.lang.NullPointerException
06-23 15:25:31.425: E/AndroidRuntime(18725):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2295)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2349)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at android.app.ActivityThread.access$700(ActivityThread.java:159)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1316)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at android.os.Handler.dispatchMessage(Handler.java:99)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at android.os.Looper.loop(Looper.java:176)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at android.app.ActivityThread.main(ActivityThread.java:5419)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at java.lang.reflect.Method.invokeNative(Native Method)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at java.lang.reflect.Method.invoke(Method.java:525)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1046)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:862)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at dalvik.system.NativeStart.main(Native Method)
06-23 15:25:31.425: E/AndroidRuntime(18725): Caused by: java.lang.NullPointerException
06-23 15:25:31.425: E/AndroidRuntime(18725):    at org.apache.cordova.PluginManager.getPlugin(PluginManager.java:195)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at org.apache.cordova.PluginManager.startupPlugins(PluginManager.java:116)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at org.apache.cordova.PluginManager.init(PluginManager.java:92)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at org.apache.cordova.CordovaWebView.init(CordovaWebView.java:163)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at org.apache.cordova.CordovaActivity.init(CordovaActivity.java:345)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at org.apache.cordova.CordovaActivity.init(CordovaActivity.java:320)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at org.apache.cordova.CordovaActivity.loadUrl(CordovaActivity.java:362)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at com.example.helloWorld.MainActivity.onCreate(MainActivity.java:59)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at android.app.Activity.performCreate(Activity.java:5372)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1104)
06-23 15:25:31.425: E/AndroidRuntime(18725):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2257)

Answer 1

Try extending with CordovaActivity like this

import org.apache.cordova.Config;
import org.apache.cordova.CordovaActivity;

public class MyKnovelToGo extends CordovaActivity
{
    public static SharedPreferences prefs; 
   public static Handler customHandler = new Handler(); 

   @Override 
   public void onCreate(Bundle savedInstanceState) {     
     super.onCreate(savedInstanceState);
     super.setIntegerProperty("splashscreen", R.drawable.splash); 
     super.loadUrl("file:///android_asset/www/index.html");
   } 
}

In Android Manifest, for application name please define with package name, like this

 android:name="com.example.package.MainActivity"