Splashcreen Plugin (Cordova) and icons do not work on Crosswalk

As commented the problem does not appear before using cordova-android-crosswalk , this is due to the version of the Cordova library, Crosswalk requires version 3.6.3, this version has some differences between a class called CordovaWebView.java , basically it does not implement all class functions and separates between more files. I will not go into too much depth since the problem here is about Cordova and not Java.

But to solve the problem is quite simple, let's just edit a file.

Within the main folder of your project look for the file platforms/android/CordovaLib/src/org/apache/cordova/CordovaWebView.java

Open this file and right after the declaration of class CordovaWebView (line 80) paste the following code.

    public boolean canGoBack() {
        return super.getNavigationHistory().canGoBack();
    }

Then just try again to give the build command of your project.

According to wikipedia :

  

J2SE 8 = 52
  J2SE 7 = 51
  J2SE 6.0 = 50
  J2SE 5.0 = 49
  JDK 1.4 = 48
  JDK 1.3 = 47
  JDK 1.2 = 46
  JDK 1.1 = 45

In your mistakes this appears:

  

warning: /home/rop/Projetos/Pray/cordovaa2/platforms/android/CordovaLib/xwalk_core_library/libs/xwalk_core_library_java_app_part.jar(org/xwalk/core/XWalkView.class): major version 51 is newer than 50, the highest major version supported by this compiler.

Let's pay special attention to this:

  

(org / xwalk / core / XWalkView.class): major version 51 is newer than 50, the highest major version supported by this compiler.

You have reported that your compiler (when trying to use javac -version ) is 1.6.0_34, ie major version 50 . However, it seems that the org.xwalk.core.XWalkView class has been compiled with Java 7 ( major version 51 ) and as a consequence the Java 6 compiler is not able to understand or use it. p>

To solve this, I see three possible alternatives (not mutually exclusive):

• Upgrade your compiler to Java 7 or Java 8. However, care must be taken to make sure android will accept the resulting classes. If these classes use try-with-resources , then they will only work on Android KitKat (API level 19, Android 4.4) or higher ( Source ). Also, Android still does not support Java 8, but you can use it as one of the options when invoking the compiler, -target 1.6 or -target 1.7 .

• Recompile these classes with the Java 6 compiler if you have source code .

• Use a tool that downgrades the Java 7 (or 8) class to Java 6. The tool for this most popular purpose is retrolambda .

As for the icons, notice this in your XML:

<icon src="res/android/icon/drawable-ldpi/appicon/png" density="ldpi" />

Instead of appicon/png , it should be appicon.png . However, I do not know if that's all that's wrong or if there's anything else.

To know more details, you'd better describe your folder structure, especially what's inside res .

And some tips on your question:

• You have forgotten to include tags android and java . As a result, few people saw their issue and it only caught my attention because of the active reward. Do not forget the tags next time!

• Do not put code in image format as it is difficult to read (because the browser resizes the image) and text is not selectable. I just noticed the error of your icon when rewriting the entire XML when editing your question.