Simple demo of tableview logic for the novices

polymerchm

Underlines are treated as markers for italicized words in markdown (the formatting language for this forum) To have the underlines show, use the triple backtick formalism to enclose code thusly _italics_

ccc

This is a bit overstated for non-production code but still an interesting perspective: The Most Diabolical Python Antipattern

omz

@polymerchm You can also use a single pair of backticks.

ccc

Suggestion: Add the expected error to except clause.

        try:
            self.items[self.currentRow]['accessory_type'] = 'none' # un-flags current selected row
        except TypeError: #needed for very first selection
            pass

hecate

I realize this was written quite a long time ago, but I tried to use the code in this example and I struggle to understand how I can have both multiple select and deselect.

By changing the row
self.currentRow = row # needed for the test above
to
self.currentRow = selected = tableview.selected_rows
I manage to get to the multi-select-part, not fancy nor smart, but from there I am currently at loss.

Anything someone could suggest?

enceladus

The following url has few examples and hope it helps.
https://github.com/encela95dus/ios_pythonista_examples

table_example1,2,3,4 - tableview examples
from forum
file navigation https://github.com/dgelessus/filenav/blob/master/litenav.py
fill rows based on the characters that are entered on textfield
https://forum.omz-software.com/topic/4328/modules-of-pythonista-displayed-with-help

hecate

That was a great resource for examples, thank you!
By multi-selection I mean that you can add and remove check-marks on several rows in the table, I couldn't that these examples adressed that... Or am I missing something?

enceladus

Do you need something like this? It uses dialog but table example would be similar to that.

import dialogs

def multiple_selection_list_dialog(lst):
    form_list_of_dicts = []
    for item in lst:
        form_list_of_dicts.append(dict(type = 'check', title = item,
            key = item, value = False))  
    result = dialogs.form_dialog(title = 'Multiple Selection List', fields=form_list_of_dicts) 
    return [i for i in result if result[i]] if result else None

if __name__ == '__main__':
    lst = ['a'+str(i) for i in range(5)]
    print(multiple_selection_list_dialog(lst))

hecate

Exactly! Lovely!

I will have to look into this in more detail but if I understand this correctly, return [i for i in result if result[i]] if result else None is what makes it possible to deselect?

I find it a bit confusing that in the table_view_source example http://omz-software.com/pythonista/docs/ios/ui.html#tableview there is a method called tableview_did_deselect but I couldn't see that it was ever being called..

Thank you kindly!

cvp

@hecate I agree, never seen did_deselect called...