SwiftUI, iPhone app with json file

Question

thom.jlg OP

Created May ’20

Replies 2

Boosts 0

Views 1.3k

Participants 3

Hi,

I try ti develop an iPhone app for my personal use.

I use swiftUI on xcode. What i want is to do an app with :

homepage (name: menu) :
- List of all my films
- link to another swiftUI view with each films' informations
films informations (name: contentview) :
- toggle if the film was seen
- slider (1 to 5) to note the film

I use a json file with :

id : Int, each film has a different id
nom : String, title of the films
idL : String, first letter of the film
note : Int, note of the film
isShow : Bool, true if the film was seen, false if not

On the homepage i want to display each title with an arrow to go to informations page

I want to separate films' list by section (idL), for the moment i just have the list...

example :

A
All "A..." films
B
All "B..." films
...
I want to link toggle and slider with the json attributes and with UserData to dinamically change these properties to modify when i see new films.

For the moment, when i change toggle value or slider value, it works for each film but when i close the application, it disappear... and it's not link to the json file attributes...

Link of the .json file I use :

https://gist.githubusercontent.com/thomjlg/0782e9e8e27c346af3600bff9923f294/raw/514bf34829d8ce964bd1182430dacc8a6ff2fe66/films2.json

My project on GitHub : https://github.com/thomjlg/Films-APP

Thanks for your help !

Boost

Answer 1

Claude31 OP

Jun ’20

That's good to have a link to the whole project.

But for fast access for those who read, you should also show the code for most relevant parts directly in the post.

0

Answer 2

DelawareMathGuy OP

Jun ’20

hi Thomas (and readers)

i probably have some experience on this project, since you asked yesterday in the HackingWithSwift forums about adding a search bar to this project and i did look through it.

i've posted some code for you to look at this project on github: delawaremathguy/Thomas.

basically, let's address only one thing here that you are asking about in this post:

to get your code to save correctly, you have to update the userData.movies array and then write it out. i don't think you were doing that in your project as i saw it yesterday -- you were updating an individual movie, but not updating its entry in the userData movies array. the code to read and write to your documents directory is working fine -- you just kept writing out the same thing with no changes.

for the code that i have posted above, i've added a few lines here and there to be sure to get this done, as well as to incorporate some code i posted yesterday on HWS (albeit slightly modified) so that the search bar works as well.

as for the other thing, welll that's a different matter. doing one big list is what i have shown in the code; but getting lists to section out (dynamically, as data changes) is a little more tedious in SwiftUI, so i would defer that for now, work on other parts of your project, and hope that SwiftUI 2.0 will make it easier.

hope that helps,

DMG

0