It is a mistake to try to get a file path from the returned resource. It will not work in most cases, and even if you will be able to get the path, you will not be able to access it.
You can use File.OpenInput to access the remote resource.
Correct solution: [B4X] TextEditor - Save and load external files
You can use File.OpenInput to access the remote resource.
Correct solution: [B4X] TextEditor - Save and load external files
SubName: GetPathFromContentResult
Description: Content providers such as the media gallery return a URL that starts with content://...
If you are just interested in showing the selected image then you can use File.OpenInput to open an input stream. You can also use it together with File.Copy2 to copy the media to a new location.
With the following code you can find the actual file path (if it is available):
This code depends on ContentResolver and SQL libraries.
In most cases it is a mistake to use this sub. Especially in newer versions of Android. You shouldn't assume that the resource returned from ContentChooser comes from the file system and if it is, you most probably won't have permissions to directly access it.
Description: Content providers such as the media gallery return a URL that starts with content://...
If you are just interested in showing the selected image then you can use File.OpenInput to open an input stream. You can also use it together with File.Copy2 to copy the media to a new location.
With the following code you can find the actual file path (if it is available):
This code depends on ContentResolver and SQL libraries.
B4X:
Sub GetPathFromContentResult(UriString As String) As String
If UriString.StartsWith("/") Then Return UriString 'If the user used a file manager to choose the image
Dim Cursor1 As Cursor
Dim Uri1 As Uri
Dim Proj() As String = Array As String("_data")
Dim cr As ContentResolver
cr.Initialize("")
If UriString.StartsWith("content://com.android.providers.media.documents") Then
Dim i As Int = UriString.IndexOf("%3A")
Dim id As String = UriString.SubString(i + 3)
Uri1.Parse("content://media/external/images/media")
Cursor1 = cr.Query(Uri1, Proj, "_id = ?", Array As String(id), "")
Else
Uri1.Parse(UriString)
Cursor1 = cr.Query(Uri1, Proj, "", Null, "")
End If
Cursor1.Position = 0
Dim res As String
res = Cursor1.GetString("_data")
Cursor1.Close
Return res
End SubIn most cases it is a mistake to use this sub. Especially in newer versions of Android. You shouldn't assume that the resource returned from ContentChooser comes from the file system and if it is, you most probably won't have permissions to directly access it.
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