• Ok, I did a few updates to make it more useful. Not that it is really that useful unless you need it at runtime as Pythonista has the same but better built fonts picker in in the asset picker.
    But this just shows how hoist the original Custom ui.View Class and place it in another ui.View Custom Class. There is not much happing to make this work, the bulk of the extra lines are creating the views.
    One think I would point out though is that this example is size and orientation friendly. I am finally getting my head around the flex attr from the ui Module. I still sometimes slip up, but it's actually very easy. Shame on me, to take so long to get it. It's designed very well. I just suffer old mans syndrome sometimes. I mention that, because I don't think it's obscure, my brain was just working against myself.
    Anyway, I try to write anything that is not size and orientation friendly anymore. There is no need. And the more you do it, the more natural it is.

    Anyway, below is the update. Pythonista's filter seems to be the same as what I do, but @omz hilites the substring. Also, I am copying the font name to the clipboard where as the asset picker copies the font name into the editor. It's not difficult to do, just decided to copy to the clipboard.

    Again, I am not saying the below is the best way to do things. I am still a beginner. Just saying it's one way.

    # Pythonista Forum - @Phuket2 import ui, clipboard, console from objc_util import * def get_font_list(): # updated version from @dgelessus UIFont = ObjCClass('UIFont') lst = [str(font) for family in UIFont.familyNames() for font in UIFont.fontNamesForFamilyName_(family)] lst.sort() return lst class SimpleListView(ui.View): def __init__(self, items, *args, **kwargs): super().__init__(*args, **kwargs) self.tbl = None self.value = None self.flex = 'wh' self.make_view(items) def make_view(self, items): tbl = ui.TableView(frame=self.bounds) tbl.flex = 'wh' tbl.data_source = tbl.delegate = ui.ListDataSource(items) tbl.data_source.tableview_cell_for_row =\ self.tableview_cell_for_row self.tbl = tbl self.add_subview(tbl) def tableview_cell_for_row(self, tableview, section, row): # Create and return a cell for the given section/row cell = ui.TableViewCell() data = tableview.data_source.items[row] cell.text_label.text = data cell.text_label.font = (data, 16) return cell class FontViewer(ui.View): def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self.data = get_font_list() self.tbl = None self.bg_color = 'darkgray' self.flex = 'wh' self.name_str = self.name if self.name else 'Fonts' self.make_view(**kwargs) self.update_name() def make_view(self, **kwargs): # make the containing view margin = kwargs.pop('margin', (0, 0)) cv = ui.View(frame=self.bounds.inset(*margin)) cv.flex = 'wh' # make the search view sv = ui.View(frame=cv.bounds) sv.height = 32 tv = ui.TextField(frame=sv.bounds) tv.placeholder = 'search' tv.clear_button_mode = 'always' tv.autocapitalization_type = ui.AUTOCAPITALIZE_NONE tv.autocorrection_type = False tv.delegate = self tv.flex = 'wh' sv.add_subview(tv) sv.flex = 'w' cv.add_subview(sv) # make the list view lv = ui.View(frame=sv.frame) lv.height = cv.height - sv.frame.max_y - 5 lv.y = sv.frame.max_y + 5 lv.corner_radius = 6 lv.flex = 'wh' cv.add_subview(lv) # create the list slv = SimpleListView(self.data, frame=f) self.tbl = slv.tbl # redirect the action to this class. self.tbl.data_source.action = self.list_action lv.add_subview(slv) self.add_subview(cv) def textfield_did_change(self, textfield): self.filter_data(textfield.text) def filter_data(self, filter_txt): # real poor mans filter. just doing an in-string search to match # but its case insensitive. for this data seems reasonable. txt = filter_txt.lower() # ui.ListDataSource updates itself when the items are changed self.tbl.data_source.items = [item for item in self.data if txt in item.lower()] self.update_name() def update_name(self): self.name = '{} - ({})'.format(self.name_str, len(self.tbl.data_source.items)) def list_action(self, sender): # when a list item is clicked self.value = sender.items[sender.selected_row] clipboard.set(self.value) console.hud_alert('{} - copied'.format(self.value)) self.close() if __name__ == '__main__': w, h = 400, 800 style = 'popover' if style == 'popover': h = ui.get_screen_size()[1] * .6 f = (0, 0, w, h) fv = FontViewer(name='The Fonts', frame=f, margin=(5, 5)) fv.present(style=style)
  • Thanks guys for the workaround and the explanation. I will add a bug report.

  • @jonb many thanks, that got it!

  • @tony , thanks. I have started to look at it, but more friends turned up

Internal error.

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