Android Code Snippet Add image to Gallery Android 5 - 10+

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Depends on: Phone, JavaObject and ContentResolver libraries

B4X:
Sub AddBitmapToGallery (In As InputStream, TargetName As String, MimeType As String)
    Dim p As Phone
    Dim ctxt As JavaObject
    ctxt.InitializeContext
    If p.SdkVersion >= 29 Then
        Dim cr As ContentResolver
        cr.Initialize("cr")
        Dim values As ContentValues
        values.Initialize
        values.PutString("_display_name", TargetName)
        values.PutString("mime_type", MimeType)
        Dim MediaStoreImagesMedia As JavaObject
        MediaStoreImagesMedia.InitializeStatic("android.provider.MediaStore.Images$Media")
        Dim EXTERNAL_CONTENT_URI As Uri = MediaStoreImagesMedia.GetField("EXTERNAL_CONTENT_URI")
        cr.Delete(EXTERNAL_CONTENT_URI, "_display_name = ?", Array As String(TargetName))
        Dim imageuri As JavaObject = cr.Insert(EXTERNAL_CONTENT_URI, values)
        Dim out As OutputStream = ctxt.RunMethodJO("getContentResolver", Null).RunMethod("openOutputStream", Array(imageuri))
        File.Copy2(In, out)
        out.Close
    Else
        Dim rp As RuntimePermissions
        rp.CheckAndRequest(rp.PERMISSION_WRITE_EXTERNAL_STORAGE)
        Wait For B4XPage_PermissionResult (Permission As String, Result As Boolean) 'change to Activity if not using B4XPages
        If Result Then
            Dim out As OutputStream = File.OpenOutput(File.DirRootExternal, "Pictures/" & TargetName, False)
            File.Copy2(In, out)
            out.Close
            Dim FilePath As String = File.Combine(File.DirRootExternal, "Pictures/" & TargetName)
            Dim MediaScannerConnection As JavaObject
            MediaScannerConnection.InitializeStatic("android.media.MediaScannerConnection")
            Dim interface As Object = MediaScannerConnection.CreateEventFromUI("android.media.MediaScannerConnection.OnScanCompletedListener", "ScanCompleted", _
                   Null)
            MediaScannerConnection.RunMethod("scanFile", Array(ctxt, Array As String(FilePath), Array As String(MimeType), interface))
            Wait For ScanCompleted_Event (MethodName As String, Args() As Object)
            Log(Args(0))
            Log(Args(1))
        End If
    End If
End Sub

Usage example:
B4X:
AddBitmapToGallery(File.OpenInput(File.DirAssets, "logo.png"), "logo.png", "image/png")

No permission is required in Android 10+.
 
Last edited:

lymey

Active Member
Licensed User
Longtime User
That's very helpful, how about removing a bitmap from the gallery?
 

tuhatinhvn

Active Member
Licensed User
Longtime User
Can we add video file or pdf file or any files to gallery with this code??
 

stevenindon

Active Member
Licensed User
Erel,


I would like to save my bitmap to Gallery Folder by calling :

AddBitmapToGallery(File.OpenInput(File.DirAssets, "logo.png"), "logo.png", "image/png")

but i have the image in Bitmap variable already. How can i convert my bitmap to Inputstream?

*I dont want to save then reopen again
 
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