How to implement the Cordova-android plugin for pspdfkit

I tried to implement the cordova-android plugin for PSPDFkit for my hybrid app. I followed all the steps given in the github readme, but the app came up and the document is not displayed. Also I moved the pdf directory to the www directory, changed the manifest file which still had no luck. Please help me to solve this problem. My code looks like this:

var app = {
initialize: function() {
    document.addEventListener('deviceready', this.onDeviceReady.bind(this), false);
},    
onDeviceReady: function() {
    this.receivedEvent('deviceready');
    PSPDFKit.showDocument('file:///android_asset/www/documents/myFile.pdf', {
        title: 'My PDF Document',
        page: 8,
        scrollDirection: PSPDFKit.PageScrollDirection.VERTICAL,
        scrollMode: PSPDFKit.ScrollMode.CONTINUOUS,
        useImmersiveMode: true
    });
    console.log(PSPDFKit);
},
// Update DOM on a Received Event
receivedEvent: function(id) {
    var parentElement = document.getElementById(id);
    var listeningElement = parentElement.querySelector('.listening');
    var receivedElement = parentElement.querySelector('.received');
    listeningElement.setAttribute('style', 'display:none;');
    receivedElement.setAttribute('style', 'display:block;');
    console.log('Received Event: ' + id);
}
};
app.initialize();