How to download and open a file with NS 6.0 - nativescript

Question

I'have migrate to NativeScript 6.0 and need some help on how to download and open a file with Android support lib (AndroidX) in the Downloads folder.
Actually, in NS 5.x, i have used FileProvider from Android support lib (android.support.v4.content.FileProvider) and works great. After the migration, using (androidx.core.content.FileProvider), i have errors opening the App.
But in Android docs, i can't find any method or information to migrate the code for Native download and Open (Downloads Folder).
Previous Method:
private openFile(fileName: string, mimeType: string, extension: string) {
try {
if (isAndroid) {
const intent = new android.content.Intent(android.content.Intent.ACTION_VIEW);
const context = applicationModule.android.context;
console.log("android.ctx=", context);
const nativeFile = new java.io.File(fileName);
console.log("nativeFile=", nativeFile);
const uri = android.support.v4.content.FileProvider.getUriForFile(context, "com.otisw.gescon.app.provider", nativeFile);
intent.setDataAndType(uri, mimeType);
intent.addFlags(android.content.Intent.FLAG_GRANT_READ_URI_PERMISSION);
const choosedIntent = android.content.Intent.createChooser(intent, "Open file...");
console.log("choosedIntent=>", choosedIntent);
context.startActivity(choosedIntent);
} else {
// const documents = fs.knownFolders.currentApp();
// const file = this.documents.getFile(fileName);
const open = utils.ios.openFile(fileName);
}
} catch (e) {
console.log(e);
}
}
Tried:
private openFile(fileName: string, mimeType: string, extension: string) {
try {
if (isAndroid) {
const intent = androidx.core.content.IntentCompat.makeMainSelectorActivity(
"android.content.Intent.ACTION_VIEW",
"??"
);
File reference.d.ts:
/// <reference path="./node_modules/tns-core-modules/tns-core-modules.d.ts" />
/// <reference path="./node_modules/tns-platform-declarations/ios.d.ts" />
/// <reference path="./node_modules/tns-platform-declarations/android/androidx-26.d.ts" />
Does anyone tries to upgrade the code for Download and Open from NativeScript to new AndroidX or knows a workaround to do this ?
Thanks!

Answer 1

You will have to use androidx.core.content.FileProvider on AndoridX and android.support.v4.content.FileProvider in lower versions.
With the release of Android 9.0 (API level 28) there is a new version
of the support library called AndroidX which is part of Jetpack. The
AndroidX library contains the existing support library and also
includes the latest Jetpack components.
You can continue to use the support library. Historical artifacts
(those versioned 27 and earlier, and packaged as android.support.*)
will remain available on Google Maven. However, all new library
development will occur in the AndroidX library.
We recommend using the AndroidX libraries in all new projects. You
should also consider migrating existing projects to AndroidX as well.