Android Question Permision Denied Error

[Oscarin]

Hi, I have this code on a sub, but when I call it I get an error
Dim datex As String
DateTime.TimeFormat = "hhmm"
DateTime.DateFormat = "ddMMMyyyy"
datex = "Inv-" & DateTime.Date(DateTime.Now) &"-"& DateTime.Time(DateTime.Now) & ".csv"
Log(datex)

Dim Result As Boolean = True
If Not(rp.Check(rp.PERMISSION_WRITE_EXTERNAL_STORAGE)) Then
rp.CheckAndRequest(rp.PERMISSION_WRITE_EXTERNAL_STORAGE)
Wait For Activity_PermissionResult (Permission As String, Result As Boolean)
End If
If Result Then
Dim MyTextWriter As TextWriter
'Line below assumes text File located in rootexternal. It will be created If Not exist
MyTextWriter.Initialize(File.OpenOutput(File.DirRootExternal, datex,True))
Dim xy As Int
MyTextWriter.WriteLine("Inventario," & DateTime.Date(DateTime.Now))
MyTextWriter.WriteLine("Hora," & DateTime.Time(DateTime.Now))
MyTextWriter.WriteLine("Sucursal," & Label3.Text)
MyTextWriter.WriteLine("Descripcion,En Sistema,En Sucursal")
For xy = 0 To FlexGrid1.RowCount - 1
Dim linea As String = FlexGrid1.GetCellValue(xy,0) & "," & FlexGrid1.GetCellValue(xy,1) & "," & FlexGrid1.GetCellValue(xy,2)
MyTextWriter.WriteLine(linea)
Next
MyTextWriter.Close


The error
java.io.FileNotFoundException: /storage/emulated/0/Inv-12May2022-0119.csv: open failed: EACCES (Permission denied)
I gave it permission for storage but still get the error

This is the manifest

ddManifestText(
<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="30"/>
<supports-screens android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:anyDensity="true"/>)
AddManifestText(<uses-feature android:name="android.hardware.telephony" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera.autofocus" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera.flash" android:required="false" />)
'AddPermission("android.permission.ACCESS_COARSE_LOCATION")
'AddPermission(android.permission.INTERNET)
'AddPermission(android.permission.ACCESS_FINE_LOCATION)
AddPermission(android.permission.WAKE_LOCK)
AddPermission(android.permission.DEVICE_POWER)
'AddPermission("android.permission.ACCESS_COARSE_UPDATES")
'AddPermission("android.permission.READ_PHONE_STATE")
AddPermission(android.permission.VIBRATE)
AddPermission(android.permission.CAMERA)
AddPermission(android.permission.FLASHLIGHT)
AddPermission(android.permission.WRITE_EXTERNAL_STORAGE)
AddPermission(android.hardware.camera)
SetApplicationAttribute(android:usesCleartextTraffic, "true")
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")
SetApplicationAttribute(android:largeHeap, "true")
CreateResourceFromFile(Macro, JhsIceZxing1.CaturePortrait)
CreateResourceFromFile(Macro, Themes.LightTheme)

 

[agraham]

Please use code tags when posting code. It's the </> icon at the top left of the post editor toolbar. Also better to use quote tags - middle of the toolbar - when posting other text,

You are probably running it on an Android 11 or 12 phone where you can no longer access File.DirRootExternal. If the app is for private use only you can change your target SDK to 28 which should work or use this class

Manage External Storage - access internal external storage >= SDK 30

Google seems intent on dumbing down Android to the point of uselessnes to me. I think of my devices as little computers and I want a proper file system on them, not the limited tortuous things that Google offers and that I don't understand, ContentChooser, FileProvider, ... o_O I'm getting old...

www.b4x.com

Here are some ways that will work for SDK 30

SaveAs - Let the user select a target folder + list of other related methods

B4A + B4i example: https://www.b4x.com/android/forum/threads/b4x-texteditor-save-and-load-external-files.132731/#post-838166 List of classes or libraries that can be used to access secondary storages: ContentChooser (Phone libray) - allows the user to select a resource or file using external...

www.b4x.com

 

[Oscarin]

Please use code tags when posting code. It's the </> icon at the top left of the post editor toolbar. Also better to use quote tags - middle of the toolbar - when posting other text,

You are probably running it on an Android 11 or 12 phone where you can no longer access File.DirRootExternal. If the app is for private use only you can change your target SDK to 28 which should work or use this class

Manage External Storage - access internal external storage >= SDK 30

Google seems intent on dumbing down Android to the point of uselessnes to me. I think of my devices as little computers and I want a proper file system on them, not the limited tortuous things that Google offers and that I don't understand, ContentChooser, FileProvider, ... o_O I'm getting old...

www.b4x.com

Here are some ways that will work for SDK 30

SaveAs - Let the user select a target folder + list of other related methods

B4A + B4i example: https://www.b4x.com/android/forum/threads/b4x-texteditor-save-and-load-external-files.132731/#post-838166 List of classes or libraries that can be used to access secondary storages: ContentChooser (Phone libray) - allows the user to select a resource or file using external...

www.b4x.com

Thanks for the reply, I'll try your suggestion.
Also, is there a way to specify the folder on to where to save my output file?

 

[Erel]

Also, is there a way to specify the folder on to where to save my output file?

Not with ContentChooser.