jListView with image

[xinyiman]

Someone explain to me how to put in a listview an image (loaded at runtime retrieved from a record in sqlite) aligned left and the text in the center.
I need it to be able to preview a series of products combined with their name. A thousand thanks

[jmpessoa]

Hi, xinyiman!

If you can retrieve the image from a record in sqlite....

then you can try some code like theses [events]:

Code: Pascal  [Select][+][-]

1. procedure TAndroidModule1.ListView1DrawItemBitmap(Sender: TObject;
2.   itemIndex: integer; itemCaption: string; out bimap: JObject);
3. begin
4.   if itemIndex = 1 then   //only item index = 1 has a image ...
5.   begin
6.     bimap:= ImageFileManager1.LoadThumbnailFromAssets('lemur_funny.png', 72, 72);
7.   end;
8. end;
9.  

or

Code: Pascal  [Select][+][-]

1. procedure TAndroidModule1.ListView1DrawItemWidgetBitmap(Sender: TObject;
2.   itemIndex: integer; widgetText: string; out bimap: JObject);
3. begin
4.   if itemIndex = 1 then   //only item index = 1 has a image ...
5.   begin
6.     bimap:= ImageFileManager1.LoadThumbnailFromAssets('lemur_funny.png', 72, 72);
7.   end;
8. end;  
9.  

[xinyiman]

I was thinking of saving images in base64 in text field. How do I then convert them to bitmaps?

[jmpessoa]

You can try "jBitmap component" methods:

Code: Pascal  [Select][+][-]

1.     function GetBase64StringFromImage(_bitmap: jObject; _compressFormat: TBitmapCompressFormat): string;
2.     function GetBase64StringFromImageFile(_fullPathToImageFile: string): string;
3.  
4.     function GetImageFromBase64String(_imageBase64String: string): jObject;  // <-- try this!
5.