How do you check if a file exists?

[Anke]

@rmcpdias

but he says:

@Taifun I don't think so.

I think most of the methods and events will still work, except copying files to the external storage (outside the ASD) on devices with Android ≥ 10, because WRITE permission does no longer exist (with targetSdk = 30).

But DefaultFileScope must be set to Legacy (otherwise you will not be able to ask for READ / WRITE permissions for Android versions from 4.4 - 9, API 19 - 28).

See also here:

Testing the next release of MIT App Inventor (nb187)

If → DefaultFileScope is not set to → Legacy in the Designer this also happens on Android versions between 4.4 and 9 (Android ≥ 4.4 [KitKat, API 19] and ≤ 9 [Pie, API 28]), because the maxSdkVersion for READ / WRITE is 18. <uses-permission android:maxSdkVersion="18" android:name="android.permission.READ_EXTERNAL_STORAGE"/> <uses-permission android:maxSdkVersion="18" android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> See also here: EDIT: If you set → DefaultFileScope to → Legacy …