pjamesrud

pjamesrud

Android app, using a loop value to set visibilty and add data to textview?

I am creating an app that allows user to enter values and depending on the value a number of textviews are changed programmatically from gone to visible.
In the xml file there is TV!,TV2 and TV3, The user enters a couple of numbers from previous activity and these are used to set the visibility of the TV1,TV2 and TV3 textviews

Example:
            User enters 2.
Using a for loop 
        for (int i = 0; i<= userinput; i++){
          showTV = "TV"+(i);
          showTV.setVisibility(View.VISIBLE);
          showTV.setText(String.valueOf(list1.get(1)));

But I can not get the textview’s Id to be recognized using the i value

Can it be done this way or is this the wrong direction.

First Post!

Veeran

Veeran

It seems like you’re on the right track, but there’s a small mistake in your approach. When trying to dynamically set the visibility of TextViews based on user input, you should use the resource identifier (R.id) to access the TextViews rather than concatenating a string.

You can achieve this by creating an array of TextViews in your Java code that corresponds to the TextViews in your XML layout. Then, you can iterate through this array to set the visibility of TextViews based on the user input. Here’s a simplified example:

// Assuming you have TextViews in your XML with IDs TV1, TV2, and TV3
TextView tvArray = new TextView{findViewById(R.id.TV1), findViewById(R.id.TV2), findViewById(R.id.TV3)};

int userInput = 2; // Example user input

for (int i = 0; i <= userInput; i++) {
tvArray[i].setVisibility(View.VISIBLE);
tvArray[i].setText(String.valueOf(list1.get(i))); // Assuming list1 contains the values you want to set
}

Best Regards

Where Next?

Popular Frontend topics Top

New
Zuber
How to make a website like webnovel and wattpadd where subscribers and logged in user post stories like their own Novel in a website and ...
New
axelson
In Elixir I love to use the library GitHub - sasa1977/boundary: Manage and restrain cross-module dependencies in Elixir projects to enfor...
New
AlessandroDsgroup
Hi to everyone, we are experiencing a 401 error related to the connection of the websocket (in reference to our web app); we are unable ...
New
palak231
Hi this is Palak Sharma I am new here and I found this community while researching about JavaScript over the internet. Well I have comp...
/js
New
Fl4m3Ph03n1x
Background I have a fresh umbrella app and I am trying to create a Phoenix app inside it. However, even though I can create the Phoenix a...
New
JessicaW33
Hello All, How would you implement a navigation system in React Native? Could not find a way so I ask the community can someone help me ...
New
sona11
I’m currently working on a JavaScript project that involves converting user-supplied text to numbers. Dealing with different areas and th...
/js
New
Julien0577
Hi all, Anybody knows how to do this menu animation? (from BBVA APP, they have the same for both android and iOS app). Is it custom?...
New
hosseinkhosromanesh
hello , i should code a cluster like image bellow we have no challenge in coding backend but in front need some clue to do this its a dy...
/js
New

Other popular topics Top

DevotionGeo
I know that these benchmarks might not be the exact picture of real-world scenario, but still I expect a Rust web framework performing a ...
New
Exadra37
I am thinking in building or buy a desktop computer for programing, both professionally and on my free time, and my choice of OS is Linux...
New
dasdom
No chair. I have a standing desk. This post was split into a dedicated thread from our thread about chairs :slight_smile:
New
AstonJ
Thanks to @foxtrottwist’s and @Tomas’s posts in this thread: Poll: Which code editor do you use? I bought Onivim! :nerd_face: https://on...
New
Maartz
Hi folks, I don’t know if I saw this here but, here’s a new programming language, called Roc Reminds me a bit of Elm and thus Haskell. ...
New
PragmaticBookshelf
Rails 7 completely redefines what it means to produce fantastic user experiences and provides a way to achieve all the benefits of single...
New
AstonJ
If you get Can't find emacs in your PATH when trying to install Doom Emacs on your Mac you… just… need to install Emacs first! :lol: bre...
New
New
PragmaticBookshelf
Author Spotlight: Peter Ullrich @PJUllrich Data is at the core of every business, but it is useless if nobody can access and analyze ...
New
Margaret
Ask Me Anything with Mark Volkmann @mvolkmann On February 24 and 25, we are giving you a chance to ask questions of PragProg author M...
New