RemindMe | Reminds you of events with an un-missasble pop-up | Calendar library

I don't understand much about databases and I want to do one for my reminder command and for my changable prefix. For the prefix I am currently using a json file but someone said it would be better to use database for that. Also my reminder command doesn't store reminders so when the bot is down the reminders are gone. I would be so happy if anyone could help me.

Here is my reminder command's code:

So, I'm trying to create a reminder function using discord.py. This is my code:

recently I've made a discord bot reminder command and got an issue with it, but thanks to Nurqm's help I was able to fix it. However, I got another issue in the time setting, when I do /reminder 5days Fix the server, which is a reminder to remind me to fix the server after 5 days, I get a ValueError.

This is my code:

I am trying to make a discord bot reminder command, however, I am running through an issue.

When I do the command, it executes the sleep time perfectly, however, it doesn't show the reminder that I have set.

Example: When I do /reminder 5m Fix the server, it should send Alright, I will remind you about Fix the server in 5 minutes., However, it is sending this instead: Alright, I will remind you about {} in 5 minutes. And also when I don't include the reminder argument it should send an error message, but it does nothing instead.

Here is my code:

I'm building a mobile app which sets reminders for the users depending on what they enter in the input page, pretty simple stuff. The reminders themselves show as cards in the home page that the user should be able to edit or delete any time. The dilemma here is: I don't really know how to do that...

So here's an example of what I'm trying to get at:

I implemented ExpandableListView using this example, the only 2 diff from my code and example code is: I implemented on dialog box instead of activity and 2nd diff is my data is coming from SQLite.

So, I successfully implemented ExpandableListView and data is coming on perfect position according to group/child pos also. There is no issue in the code.

Now, later I implemented search functionality in the same ExpandableListAdapter.

Problem: Suppose, I want to search Electricity, (which is twice in my case also "E" is matching in more than one time) So, when I search "E", it shows me a list of matches with "E" and that is good, but when I do the second letter "L" it crashes on getChild method and tells me that index is "1" and size is "1" I know it should be 2, but I don't know how is it possible? Because the same getChild method works when it shows me the ExpandableList!!

I tried to debug also, that main Group size is coming right for the first time, but later it remains zero (0).

See:

Code:

Dialog Class:

Problem:

I have arraylist which contains all child items which is 5 child, now I have to divide into two group: General and other. For General (3) Ele bill, Insurance and landline For Other(2): Gas and Water

Here is my implementation:

I am currently working on a way to send arguments from one fragment to another using SafeArgs from the Navigation Component. I have set the arguments in the destination fragment as described in several blog posts, but I also want to be able to navigate to that destination without arguments. I don't want to pass a bunch of nulls and 0s.

EDIT: Here is my navigation.xml:

This is all my gradle code