I am continuing a conversation from this thread:
https://www.b4x.com/android/forum/t...from-your-app-with-file-provider.70458/page-2
Basically, my app shares a file with the devices default MMS app using an intent.
I had the targetSdkVersion set to 21, so when I had "file://" in the uri, it worked for android 4.4, 7, 8 no problem.
But now that we must set targetSdkVersion to 26, I tried to use the recommended FileProvider (content://) method using the example in post #4:
https://www.b4x.com/android/forum/threads/share-txt-files.73166/#post-464921
And this works great on android 7. But when I tried running on 5.0, the file won't get copied over into the devices MMS app (it is Samsung's official galaxy 5.0.1 default messaging app) - it gives "unable to attach file".
However, if I instead send the file using a gmail intent, the file is copied over as an attachment. So the fileprovider method is not working reliably for all versions of android/apps.
So I had to create a routine that checks if the device is 24 or higher and uses FileProvider, but using file:// if less then 24:
So why is the FileProvider not working reliably for android <24?
https://www.b4x.com/android/forum/t...from-your-app-with-file-provider.70458/page-2
Basically, my app shares a file with the devices default MMS app using an intent.
I had the targetSdkVersion set to 21, so when I had "file://" in the uri, it worked for android 4.4, 7, 8 no problem.
But now that we must set targetSdkVersion to 26, I tried to use the recommended FileProvider (content://) method using the example in post #4:
https://www.b4x.com/android/forum/threads/share-txt-files.73166/#post-464921
And this works great on android 7. But when I tried running on 5.0, the file won't get copied over into the devices MMS app (it is Samsung's official galaxy 5.0.1 default messaging app) - it gives "unable to attach file".
However, if I instead send the file using a gmail intent, the file is copied over as an attachment. So the fileprovider method is not working reliably for all versions of android/apps.
So I had to create a routine that checks if the device is 24 or higher and uses FileProvider, but using file:// if less then 24:
B4X:
Sub GetFileUri (Dir As String, FileName As String) As Object
Dim P As Phone
If P.SdkVersion >= 24 Then
Return CreateFileProviderUri(Dir,FileName)
Else
Return CreateUri("file://" & File.Combine(Dir, FileName))
End If
End Sub
Sub CreateUri(uri As String) As Object
Dim r As Reflector
Return r.RunStaticMethod("android.net.Uri", "parse", Array As Object(uri), Array As String("java.lang.String"))
End Sub
Sub CreateFileProviderUri (Dir As String, FileName As String) As Object
Dim FileProvider As JavaObject
Dim context As JavaObject
context.InitializeContext
FileProvider.InitializeStatic("android.support.v4.content.FileProvider")
Dim f As JavaObject
f.InitializeNewInstance("java.io.File", Array(Dir, FileName))
Return FileProvider.RunMethod("getUriForFile", Array(context, Application.PackageName & ".provider", f))
End SubSo why is the FileProvider not working reliably for android <24?