Generate a pdf table with the jspdf library

MIT App Inventor Help
1

i managed to make simple pdf pages with some text and images on the “page”, but now comes the hard thing.
I stored some data in a tiny_db asset and whanna make a grid on the paper.

I see this example code on the jspdf page, but do not know how to handle those “vectors” to pass to the pdf generation code … lists?:

var generateData = function (amount) {
var result = [];
var data =
{
    coin: "100",
    game_group: "GameGroup",
    game_name: "XPTO2",
    game_version: "25",
    machine: "20485861",
    vlt: "0"
};
for (var i = 0; i < amount; i += 1) {
    data.id = (i + 1).toString();
    result.push(Object.assign({}, data));
}
return result;
};

function createHeaders(keys) {
    var result = [];
    for (var i = 0; i < keys.length; i += 1) {
        result.push({
        'id' : keys[i],
            'name': keys[i],
            'prompt': keys[i],
            'width': 65,
            'align': 'center',
            'padding': 0
        });
    }
    return result;
}



var headers = createHeaders(["id", "coin", "game_group", "game_name", "game_version", "machine", "vlt"]);

var doc = new jsPDF({ putOnlyUsedFonts: true, orientation: 'landscape' });
doc.table(1, 1, generateData(100), headers, { autoSize: true });
2

Links?

Context ?

For tables you should use the jspdf-autotable library

3

the question is:
how could i “simulate a vector” in ai2?
are lists the way ai2 manage an “amount” of items?

if i use your autotable example (thanks for this <3) how con i merge the features of “genpdf.html” with those of genpdftable?

I need to generate pages with text mixed with tables, not pages of only tables :frowning:

4

i replied by myself … for the question if autotable is able to add plain text to the pages and not only tables, i tested adding a line to your example:
doc.text(‘This is some text.’, 20, 20);

and setting the table Y coordinate like that: doc.autoTable({startY: 30,

PS: remember always to add a ; ath the end of all jspdf “commands” (the last one do not care).

now testing images

5

Keep at it, you seem to be solving your own problems, and will be the forum’s jspdf expert by the time you have done :+1:

1 Like
6

see also this tutorial


you can also purchase the example including descriptions, see here

Taifun

Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun.

7

thanks.

but real differences from appy builder and app inventor? … some time i’ll try to search commands and procedures on AI2 i think are present and then i realize i can have dreamt of them :smiley:

like a sort of “got to scree” instead of “open screen” or a way to know if a screen is already opened

8

The recommended method of switching screens in App Inventor

Taifun

Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun.