The file opener plugin just launch an intent and other app opens the file, not your app, so you don't need phonegap for that, just look into the plugin code and do the same in your android project.
There are a few plugins.
https://github.com/markeeftb/FileOpener
private void openFile(String url) throws IOException {
// Create URI
Uri uri = Uri.parse(url);
Intent intent = null;
// Check what kind of file you are trying to open, by comparing the url with extensions.
// When the if condition is matched, plugin sets the correct intent (mime) type,
// so Android knew what application to use to open the file
if (url.contains(".doc") || url.contains(".docx")) {
// Word document
intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "application/msword");
} else if(url.contains(".pdf")) {
// PDF file
intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "application/pdf");
} else if(url.contains(".ppt") || url.contains(".pptx")) {
// Powerpoint file
intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "application/vnd.ms-powerpoint");
} else if(url.contains(".xls") || url.contains(".xlsx")) {
// Excel file
intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "application/vnd.ms-excel");
} else if(url.contains(".rtf")) {
// RTF file
intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "application/rtf");
} else if(url.contains(".wav")) {
// WAV audio file
intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "audio/x-wav");
} else if(url.contains(".gif")) {
// GIF file
intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "image/gif");
} else if(url.contains(".jpg") || url.contains(".jpeg")) {
// JPG file
intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "image/jpeg");
} else if(url.contains(".png")) {
// PNG file
intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "image/png");
} else if(url.contains(".txt")) {
// Text file
intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "text/plain");
} else if(url.contains(".mpg") || url.contains(".mpeg") || url.contains(".mpe") || url.contains(".mp4") || url.contains(".avi")) {
// Video files
intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "video/*");
}
//if you want you can also define the intent type for any other file
//additionally use else clause below, to manage other unknown extensions
//in this case, Android will show all applications installed on the device
//so you can choose which application to use
else { intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "*/*");
}
this.cordova.getActivity().startActivity(intent);
}
just change the this.cordova.getActivity()
for the way you get the activity on the class where you call the code.