I try to many times without success to create grid (image gallery) which look same on all devices. Usually easy task...seems that I here miss something. To rephrase question: grid columns must fill with of device screen, images must be resized to fit width and must retain proportion.
You can use a GridView and set the columns to 3 then assign you adapter as needed.
Another option is you use a LinearLayout for each row and assign the weight of each object to .33 of the total weight.
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I am trying to move my app from using GridView to using RecyclerView with GridLayoutManager. I am new to RecylcerViews, but have successfully converted my ListViews, now working on my GridView. A couple things I am unsure about:
My current GridView has a certain number of columns, determined at runtime, with each grid column the same, hard-coded width. It is scrollable both horizontally and vertically (I wrap my Gridview in a HorizontalScrollView). So I basically need to have a view with a set number of columns that are a set width, irrespective of screen width.
I have been having problems finding a method to set the column(span) width for GridLayoutManager, so I assume that is not how GridLayoutManager. It almost sounds like it is built to always fit all columns on the screen, rather than letting them spill off the screen? What is the best way to tell GridLayoutManager that I want, for example, 6 columns that are each 150 units wide (either dp or pixels)?
For scrolling in both directions, it sounds like I can use my current approach and just wrap my RecyclerView in a HorizontalScrollView, is that correct?
Make the width of the RecyclerView wrap_content and set the number of spans you want. (Make sure parents of the RecyclerView are also wrap_content.) When you create the item views in the RecyclerView's onCreateViewHolder() make sure that it is the width that you want. The RecyclerView will grow to the width of the view holder layout times the number of spans.
All you need to do now is to wrap everything in a HorizontalScrollView.
I want to achieve something similar to the attached image
I was thinking of using TableLayout with 2 columns for each row.
There will be padding in order to be apart of each other. Then I will put white background for the cell. Lastly, I'll just add the ImageView and TextView.
The images and text are dynamically generated. I will get the image URL and display them.
So, are there any better or more efficient way for implementing what I want to achieve? TableLayout doesn't seem to be that efficient.
Your diagram looks pretty much like a grid - for which you can use a GridLayout in Android: https://developer.android.com/reference/android/widget/GridLayout.html
A layout that places its children in a rectangular grid.
The grid is composed of a set of infinitely thin lines that separate the viewing area into cells. Throughout the API, grid lines are referenced by grid indices. A grid with N columns has N + 1 grid indices that run from 0 through N inclusive. Regardless of how GridLayout is configured, grid index 0 is fixed to the leading edge of the container and grid index N is fixed to its trailing edge (after padding is taken into account).
Every one of the items in the grid can be a Cardview (https://developer.android.com/training/material/lists-cards.html) - and that way you will also benefit of a consistent look and feel with Android, without much effort.
Take into account that the cards (every item in the grid) will have the same height, tho: How to make a grid layout of CardViews with variable height?.
If the height of the elements will be variable, you should better take a look to the StaggeredGridLayoutManager: https://developer.android.com/reference/android/support/v7/widget/StaggeredGridLayoutManager.html
What you have to do is use a RecyclerView with a GridLayoutManager.
For a full working implementation: https://inducesmile.com/android/android-gridlayoutmanager-with-recyclerview-in-material-design/
How can I create NxN grid which automatically scale its items to fit entire screen? I need something similar to GridView but without scrolling. I want to have all items visible and fit to screen dimensions.
Well you can get the size that the gridView can fit to, and then set each of the gridView's views size according to it.
This way, there will not have to be a scrolling at all.
So, for example, if you need an NxN grid and you have 100Nx100N pixels available, for each item give 100x100 pixels.
Of course, you might want to add some padding or separators between them, but that's the basic idea.
In order to get the gridView's size (so that you can set the size of each of its views), you can use this sample code I've made, which works on any type of view.
i'm implementing a activity where the user can see images from different sizes and proportions on a GridView. I don't want to modify this images proportions.
Is it possible with GridViews or my best option is to build a TableLayout and just add each image to a TableRow?
Example: If it loads a 3x4 image, i want it to scale to satify some width and height constraint and them merge the necessary GridView's elements to keep the 3x4 proportion rate.
My objective is to reach something like this: https://www.dropbox.com/s/6jmt2x5ly1k2p92/grid.png
It seems you can as a custom gridview, I haven't tested my own, and too low to comment. So on this link you will find an image on the bottom using a gridview notice that the last item is larger that the rest and the middle left item is also off scaled.
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