Android: Not creating subdir in QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation). Why?

[bogong]

Hello!
I have this in my application:

QString oPath = QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation) + "/ApplicationName";

and

bool ADir::mEnsure(QString inPath) {

	QDir oDir(inPath);
	if (!oDir.exists()) {
		return oDir.mkpath(".");
	};
	return true;
}

This function ensure dir existence on MacOS and iOS everywhere, on Android everywhere but not in QStandardPaths::GenericDataLocation. Why? The same piece of code working perfectly for Android QStandardPaths::GenericConfigLocation. What am I missing?

[J.Hilk]

@bogong did you add external write permissions in your manifest and did the runtime permission check before the create attempt?

[Quang Phu]

This post is deleted!

[bogong]

@J-Hilk Thx a lot. I've got it forgotten. I changed manifest file at time of adopting to Qt 5.15.0 and forget to add it to application manifest.