在Gluon JavaFXPorts项目中使用Android Aar库

Question

my question is simple enough. I am using Gluon's plugin for Eclipse and developing an application in JavaFX to run on Android. However, I need to use an Android library (.aar format) and after a while of trying, cannot. Does anybody know how I can do this? I have already tried just using the classes.jar inside the .aar, while this has sort of worked, there are a few resources and things I believe the library is missing that is essential to its function. Thank you.

Edit: The library I'm trying to use is CloudRail , the download is here (Direct download) Currently, using the classes from the extracted classes.jar it is somewhat functional but when the activity from their library is launched (com.cloudrail.si.servicecode.commands.awaitCodeRedirect.AuthenticationActivity) it is displayed however it is blank and there is nothing in it. I am currently under the assumption that this is incorrect and that the missing resources/files are the cause of this.

Answer 1

I've managed to extract the classes.jar from the aar file and add it to a Gluon project as dependency.

Next, I added the activity to the AndroidManifest.xml file, after the main FXActivity :

<activity android:name="com.cloudrail.si.servicecode.commands.awaitCodeRedirect.AuthenticationActivity" />  

Then I created a class in the Android package, provided the required credentials to access to Google Drive.

public AndroidTestAar() {
    GoogleDrive cs = new GoogleDrive(FXActivity.getInstance(), "****","****");
    new Thread() {
        @Override
        public void run() {
            List<CloudMetaData> metas = cs.getChildren("/");
            Log.i("info", "Folder has " + metas.size() + " children");
            for (CloudMetaData meta : metas) {
                Log.i("info", "Child: " + meta.getName());
            }
        }
    }.start();
}

This class is called from the View:

public BasicView(String name) {
    ...
    button.setOnAction(e -> {
        try {
            Class c = Class.forName("com.testaar.AndroidTestAar");
            c.newInstance();
        } catch (ClassNotFoundException | InstantiationException | IllegalAccessException ex)  {}

    });
}

I could deploy the apk and run it.

The activity runs outside the JavaFX app, in an Android WebView.

First it asked me to sign in with my user/password, then it asked me about allowing offline access, and finally on the console it successfully listed all my files.