Develop Reference

Insert multiple items in a layout

Im developing an Android app in Java using Android Studio. I have a layout called activity_way_bill, where it must show a list of trips. Also, I have a layout called item_waybill_trip, where I have labels for displaying the trips details.
I need to insert X item_waybill_trip layouts into the activity_way_bill layout (the X number I will know at runtime). Right now, I just have it included like this, in the XML file:
<include android:id="#+id/trip" layout="#layout/item_waybill_trip" />
But this is a static solution and only allows me to include 1 (or a predefined number) of layouts. I need to include X, and set different texts for each one. How can I do this?

If you want to display the list of element with the same layout but different data than you have to use recycle view.
You can also define the count at runtime and change the count if you needed.
You can visit the site below and check how to use recycle view. :-
https://developer.android.com/guide/topics/ui/layout/recyclerview

As mentioned in the answer by #Mahavir Jain you could use a recyclerview for that but if you want to go the other way, you will have to create the dynamic layouts at runtime and add them to the parent layout using the .addView() method of the parent layout

If your app needs to display a scrolling list of elements based on large data sets (or data that frequently changes), you should use RecyclerView as described on this page.

Grid of fixed number of rows and columns - android studio

I want to create a grid or table of fixed number of rows and columns(Ex. 6x6 grid) in a layout of Android Studio. I tried using GridLayout and GridView but it requires you to put 36 EditText(Plain text) Views in it for creating a 6x6 grid. Same is the case with TableLayout where you can only insert TableRows but cannot fix the number of columns.
Bottom line is, I want a 6x6 grid which has only a 6-letter word(one character in each cell) in the beginning and one letter is typed in every turn to make a word with the existing letters.
For this, from any cell, I should be able to read the characters in the adjacent cells. I don't think creating a GridView or TableLayout and creating 36 objects of EditTextView will be the best idea. Is there a good and efficient way to do this? I need the .xml file code and also its Java class file's code.

Why you don't think that creating a layout holding views in Android framework is good and efficient way for exposing some data in a graphical interface? This is the only reason for which View class even exists. It's a main building material of your application's GUI.
Also you don't need to create it by hand. You just need to be able to address your ViewGroup (Layout) object from your Java code where you build your Activity instance. From there you have an addView() method and you can add views in a simple loop (notice that this way you can create grids of every size, not only 6x6).
Please familiarize yourself with official Android Developers site where you can read pretty much about anything relating Android Framework. For more info about layouts click here.

Try this library it might help you.
https://github.com/InQBarna/TableFixHeaders

Jface tableviewer - Columns are not spaced out even with tablecolumnlayout

I am using a jface tableviewer with a tablecolumnlayout (for it's parent composite) in my eclipse RCP application.
I see that, in my view, the columns are equally spaced out to cover the entire width of the table.. So far so good.
We have a functionality where we need to save & load the table layout . Basically user can hide/ re-order any number of columns and he wishes to save that particular layout..
I am using the eclipse preferences API to save/retrieve the table layout.
The view opens with a default layout (with all columns & with the default ordering ) when the view is opened for the 1st time. Hence, I would save a DEFAULT layout(with the default ordering & column widths) whenever the view loads so that user can come back to the original layout at any time.
But, the problem here is when I try to load the default layout, I see that the columns are NOT equally spaced out and there is an empty column at the end.
What can i possibly do to achieve the default behaviour where columns get equally spaced out to cover the width of the table?
Note: I tried invoking the layout() of table's parent composite or calling the redraw of both table as well as composite but it did not work out.

I solved the above mentioned issue.
SWT increases the given width of the columns during view rendering so that the entire table width is occupied.
I was able to get the increased width of each column only when the view was about to be rendered (during part Activation ).
If I asked for the column width just after using the tablecolumnlayout, I was still getting the predefined width.
As a solution to this, I moved my code to save the default layout during part activation so that the actual increased width is obtained.

Want to have a layout which arrange in a tabular form

I am very new to Vaadin. My requirement is like in my page I need to have 4 input component per row. There would be 4 rows like this. I need a layout which will allow me to define number of columns and keep align it.
There should not be any border like we have in table. Please suggest me any suitable layout and how can I customize that.
Thanks

You are probably looking for a GridLayout, it provides enough flexibility to size your grid 'cells', maintain consistency and set expand ratios for row and columns separately.
The other option for you is to use a CustomComponent and in case you are using Vaadin plugin for eclipse (and I don't have experience with Vaadin on any other IDE) you can use their WYSIWYG editor to translate your requirement to a custom component.

Vertical document points-of-interest highlighter component of an IDE. What's it called?

Both Eclipse an Netbeans provide a vertical points of interest highlighter next to document scroll bars, which appears to be a part of an extended JScrollPane or is simply a standalone custom component.
I've marked it on the picture below (Netbeans and Eclipse version, in that order).
It highlights lots of different things and represents a flat view of the entire document.
What is this area/component called in general?
I've been looking around on pointers on how to implement such a thing in swing or abuse an existing implementation to my liking but I don't even know what to search for. Both implementations of this thing appear to be quite similar, so I'm hoping they are based on the same piece of code.

It's an extend JScrollPane which has implemted some kind of column footer.
The default JScrollPane provides row and column headers by default, check out How to use scroll panes for more details
Try taking a look at JideScrollPane from jidesoft

Eclipse just calls these vertical rulers (they are implemented with SWT in Eclipse).