How do you create a new file using file picker and write to it?

[TIMAI2]

You could try with the SAF extension?

See HERE, scroll to Section 4 (Working with Text/CSV files in Shared Directories) of the guide.

Should work with all android versions.

[fbeleznay]

@TIMAI2

You could try with the SAF extension?

Since I would like to keep it open to be available for iOS, I would like to stay away from extensions for the moment (although I do use the BLE extension to communicate with a microcontroller in the hope that at some point it will not be a problem for iOS either).

[fbeleznay]

@Taifun

why is it not possible to use the file component and the SaveFile method together with a content uri provided by the file picker to store a file the app owns?

java.lang.IllegalArgumentException: URI scheme is not "file" at java.io.File.(File.java:429) at com.google.appinventor.components.runtime.util.ScopedFile.resolve(ScopedFile.java:65) at com.google.appinventor.components.runtime.File$9.processFile(File.java:628) at com.google.appinventor.components.runtime.util.SingleFileOperation.performOperation(SingleFileOperation.java:163) at com.google.appinventor.components.runtime.util.FileOperation.run(FileOperation.java:135) at java.lang.Thread.run(Thread.java:1119)

Is this a bug? I could not so far figure out a universal way of getting the file name and path out of the uri, it would be good to be able to write to a file where the user can look for the path, even if it is in a restricted location.