Ionic file opener - ionic2

Question

I am developing an app for android, ios and windows. One of the requirements is being able to download a pdf that is stored in the assets folder in the ionic app. I am using this plugin https://ionicframework.com/docs/native/file-opener/. I am executing this code as per the documentation.
this.fileOpener.open(‘assets/pdf-test.pdf’, ‘application/pdf’)
.then(() => console.log(‘File is opened’))
.catch(e => console.log(‘Error openening file’, e));
However I get the following error
“file not found”
Please help

Answer 1

assetsfolder only works in your app. What you are telling these others apps to do is to read help_doc.pdf out of their assets, and they do not have such a file.
try this code , but if not work , some time browser not support open pdf , then go must go with plugin fileOpener2
var location = cordova.file.applicationDirectory +"www/assets/MobiMedPrivacyPolicy.pdf";
window.resolveLocalFileSystemURL(location, function(fileEntry) {
window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory + '/Download/', function(dirEntry) {
fileEntry.copyTo(dirEntry, "MobiMedPrivacyPolicy.pdf", function(newFileEntry) {
window.open(newFileEntry.nativeURL, '_blank', 'location=no');
});
});
},function(error)
{
console.log(error)
});