I'm creating a list view in Android where each row is shown with LinearLayout. The problem that I have is that since the text is different in each line, it isn't aligned in the same way. See for e.g. the "Date" - in different position on each line. What is the best way to create such a view?
Thanks in advance,
Noam
This is the same problem why browsers are slow with showing tables with variable width: you have to calculate the widths after you've parsed all content.
The quickest way is to manually assign a size (width) to your columns.
If you really can't do that because your content is very unpredictable (are you sure?) you could try and find out what the sizes should be from all your content, and then award the sizes.
Have a couple LinearLayouts in your row layout. Set their orientation to vertical and their layout_width to fill_parent. Also set their layout_weight to 1. These will act as columns and when you put stuff inside and for example center it it will always be in the same place.
Related
I am trying to have 3 LinearLayouts ordered horizontally (basically forming three columns) within another LinearLayout where the width of the middle layout can vary depending on it's content.
All columns should be visible at all times filling the viewport from left. The left and irght column will be assigned a max width. So only the size of middle layout varies. If the total width of all columns exceeds the viewport size the middle column must not overlap or push out the other columns. But instead it should use the remaining space.
I tried using layout weights but that would put the right column always on the right side and the middle column would fill up all the space even though it's content would not require that.
When I try to use a RelativeLayout as a container I either end up with all three columns overlapping each other or the first column disappears.
I thought the below code (only schematic for now, as I don't have access to the code atm) should work, but as written above the first LinearLayout does not show up. The last LinearLayout seems to be in place as desired.
<RelativeLayout>
<LinearLayout
android:layout_alignParentStart>
</LinearLayout>
<LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_alignParentEnd>
</LinearLayout>
</RelativeLayout>
Does anyone know how I can fix this? Please let me know if you need more detailed code examples etc. I will try to provide them as soon as possible.
I found a few other questions concerning this or similar topics but the solutions always used either layout weights or something like the code snippet above. So far I had no luck with those approaches, maybe because those questions where either for slightly different use cases or a few years old so that the api has changed in the mean time.
Any pointers are greatly appreciated :-)
Yes. You want to defined the center columns with a layout_width="0dp" and a layout_weight="1". The left and right columns will be layout_width="wrap_content".
A LinearLayout should contain the 3 inner "column" LinearLayouts.
I finally found a solution that works.
Using the layout_weight as describe by Jeffrey Blattman alone does only work when the views get large enough to fill the screen.
But as long as the views only fill a part you get gaps between them as the middle view fills up the remaining space. This is something I want to avoid in this case.
For some other reason I had to put my layout into a fragment. Now when I set the dimensions of the fragment to wrap_content the behavior is exactly as I want it. So the views do not get blown up while they are to small but are laid out as if there was no layout_weight defined. But still when growing larger the edge views stay within the screen.
I'm trying to create a layout that has a background (shown below) and have 10 check boxes (2 columns of 5 rows) in the white area. I can make this work via trial and error for one size view but how would i get this to keep the same aspect ratios for different screen sizes?
I'm open to any ideas, whether it's multiple layouts for different sizes or something more clever.
As you want to build a table of checkboxes (and associated text labels, I assume), I would suggest you use TableLayout.
Basically wrap your check boxes with LinearLayout and don't give hard coded values for
android:layout_width=""
android:layout_height=""
If you can't, my answer will change. Also TableLayout another approach for your work.
I want to stretch the row of a GridView to match the height of the screen in Android.
How do I do this?
You are in control over your row heights, by virtue of what you put in
them. Since your cells appear to have more than one widget, they are
presumably wrapped in a LinearLayout or something. Set your
LinearLayouts to be some specific height, and the rows will all be
that height.
Personally, I think you should be resizing your images if you are
going to have text above and below each image on a per-cell basis.
With the Reference commonsware link
I'm building an Android app, and using a TableLayout ViewGroup to display my data.
I would like the TableView to occupy the entire width of the screen, however I'm having trouble getting this to work.
What seems to happen, is the table is only as wide as the widest element in the table, in this case, the image that I put in it.
Here's a screenshot to illustrate the problem.
Additionally, here's the XML source code of my layout.
What specifically should I do to have the layout stretch to the entire width of the screen?
Thanks in advance!
You only have 1 column. Therefore, it should be stretchColumns="0".
Creating a single-column TableLayout is pointless and wasteful. Use a vertical LinearLayout, please. You will probably find that it works better with respect to your problem as a side benefit.
Also, do not repeat the xmlns:android="http://schemas.android.com/apk/res/android" -- it only needs to go on the root element.
BTW, columns are indexed starting from 0, so you are stretching a non-existent column in your existing TableLayout.
I have 6 images I want to display as 2 rows with 3 images in each. I'm using nested LinearLayouts to achieve this, and it works well except for one thing:
The height of the largest image dictates the size of the linear layout, meaning there is empty space a lot of the time. In other words, my problem is as follows:
I keep getting the layout shown on the left, and I want the layout shown on the right.
I am aware that you can just use GridView, but that will still prevent the exact layout shown on the right, so I'm at a loss really. Many thanks.
Instead of 2 rows of three columns, you need 3 columns of 2 rows. LinearLayouts would be fine, just to be sure set the Gravity of the individual cells to Gravity.TOP.
You could equally achieve the whole grid using RelativeLayout instead of Linear. Each of your bottom row would just need android:layout_below and android:layout_alignLeft set to be the ImageView above it.