honeycomb | Honeycomb is a common basis for @ nodejs microservices | REST library

I am unable to create a folder in my Android 11 device using java. I used this piece of code

I have a custom view which draws its brackground as an hexagon. I also made a custom RecyclerView layout manager to dispose my custom view in a honeycomb fashion:

I don't want the item to be clicked (neither show a ripple) when the click is in the bounds of the view, but outside the hexagonal background. Simple: override dispatchTouchEvent() on the view, if the clicks occurs outside of the background ignore the event.

Problem is, in fact, this click might be in the pink zone, which is received by view B, but should be handled by view A

Can I do something about this ?

Consider following code based on https://vuetifyjs.com/en/components/data-tables/#grouping

I made a function that counts every value in the table's rows (calories, fat etc). I made progress bars but I don't know how to calculate the width so that it changes dynamically when I add a new row in the table. I have declared the maximum values (this is 100%).

Example: 3464 kcal is 69.28% (~69.3) from 5000 kcal

Please see below my HTML and Javascript code:

HTML:

Is it possible to get custom slot in v-data-iterator? For this example I would like to change inside Calories slot the color of the "Calories" text and add "kcal" text to value.

What i want to get:

I tried something like this:

I want to show a list of Contacts with their Image on left, I am able to achieve this with below code, But I want to know how can I show a custom Icon on left If there is no Image set for that Contact?

I've my Custom icon in drawables, named as "my_icon".

The Fragment Where I'm Showing Contact List;

I have two data frames SF and OF.

SF:

Except being the first Activity upon the Start of the Application, is there anything else special about main activity? From:https://developer.android.com/codelabs/android-training-create-an-activity#0

An app usually consists of multiple screens that are loosely bound to each other. Each screen is an activity. Typically, one activity in an app is specified as the "main" activity (MainActivity.java), which is presented to the user when the app is launched. The main activity can then start other activities to perform different actions.

From the quote above it seems to me that we have following hierarchy:

but then further is said:

Each time a new activity starts, the previous activity is stopped, but the system preserves the activity in a stack (the "back stack"). When a new activity starts, that new activity is pushed onto the back stack and takes user focus. The back stack follows basic "last in, first out" stack logic. When the user is done with the current activity and presses the Back button, that activity is popped from the stack and destroyed, and the previous activity resumes.

Does this also apply to the "MainActivity"? If the "MainActivity" is destroyed does that cause the App to crash i.e does the lifecycle of the MainActivity in any way differs from the lifecycle of any other activity? Is the MainActivity the last activity that is being stopped when the App is exited?

Why do I need this:

I would like to free some resources when the App is exited (in the onStop() Method (because post Honeycomb it is guaranteed that onStop will be called)), especially ExecutorServices, I've read here that even though App is exited there is no guarantee that an ExecutorService will be stopped and will make JVM continue working/running, even though App is closed/killed and will continue to use system resources.