hello, Andrea!

how can I help you today?

Hello

I'm working on an app for my department

basically my app has to show the deadlines, the notes and the grades and some other functionalities

I was thinking of having a Main Activity with a Navigation Drawer

and for example in the navigaiton drawer I could have an item called "Notes"

that opens a ListFragment inside the main activity with all the subject and clicking on a subject would show the notes (in another fragment contained in another activity) of the subject

is this a good way?

um, off the cuff, it seems fine

It's my first app and sometimes I get a bit confused

a navigation drawer is designed to lead people to major content areas within your app

your notes would seem to qualify

I apologize for not covering the navigation drawer in the book yet

I should get to it in the next update

don't worry

I'm still reading the fragment part

it's finally clarifying a lot of doubts

the books is really helping me a lot

glad to hear it!

another question, I am supposed to get the data from an api (not now, in the future). I will get the data in JSON form. Should I save it inside the app and everytime the app refreshes checks if there are new things? Is it possible?

is it possible? presumably

certainly, you can save JSON files, or copy the data into a database

perfect

as to whether that is the appropriate way to write the app, that I cannot say

it would depend a lot on the nature of the API and the data

and at the moment I still don't really know

I have another question

sorry if I am asking three thousands quesitons

go right ahead -- it's a quite chat room this evening

er, quiet

let's say I have a ListFragment (fragment 1) containing the list of subject where each subject opens another fragment with the notes of that subject. Then I want another ListFragment (fragment 2) with the list of subjects but where each subject points to the grades in that subject. Do I have to keep two different fragment or fragment 1 and fragment 2 can be the same class?

presumably they could be the same class

use a flag to indicate what the appropriate action is when an item is tapped

however, to me, this feels like you have a navigation issue

there should only be one list

right

clicking on an item in the list brings up details

those details may be several fragments (e.g., in a ViewPager)

yes that is definitely a better navigation

so rather than having in the navigation drawer both grades and notes I could have something like "subjects" and inside each subject I could see the notes and the grades

yes

thanks

last question I promise

for the grades for example, on the website we don't have a complete list, they are added only after we take the tests. For example at the start of the year the page grade is completely empty, but after we take the first test it will appear a row with the name of the subject and the grade

that means I don't really know what layout I should give to the grade page

do I have to do it programmatically? checking if there is a grade and if there is creating the widgets I need?

is the row with the name of the subject and the grade clickable?

if the user taps on this row, is something supposed to happen? or is it purely presenting the data?

I am just presenting the data

sorry I mean "name of the test"

not "name of the subject"

then it sounds like a TableLayout or GridLayout would be the right layout choices, so you can have nice columns

and yes, you would add the rows programmatically

ok perfect

now that I'm thinking again

rather than doing how I first thought (a list of subject and from each item the grades in that subject), I could put a grade item in the nav drawer and a page with all the grades?

how many rows would be too many for a table layout?

technically, sure

well, you would wrap the TableLayout in a ScrollView

I'd keep the number of rows under 100 or so, just so your layout isn't too heavy memory-wize

er, memory-wise

ok

Last year the items are around 70s

70*

thanks a lot

that clarified quite a lot

you are very welcome

can I come to the future office hours as well?

you most certainly may

the calendar is on your Warescription page (except now while the chat is active)

thank! I'll keep reading the book and the app will be in a better position

I usually hold two a week, though it varies based on my travel schedule

I added on the google calendar

see you next time :)

see you later!