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Size of ImageViews (with VectorDrawables) in RecyclerView

There is a dialog with a lot of vector images. How to calculate the size of each picture for any screen?
If i use
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/ava_item"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/ava_item_imageview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:adjustViewBounds="true"/>
</FrameLayout>
i get this result
But i need automatically set size for imageviews. How?

In order to get all VectorDrawables of the same maximum size in Vertical Scrolling RecyclerView, you need to install in xml at the root element
android:layout_width="match_parent"
android:layout_height="wrap_content"
I suppose for horizontal scrolling the values of the parameters should be reversed.

Different ImageView size in a listView

I have a custom listview with ImageView and EditText , my problem is, with different image the size of imageview is different, like in photo.
How can I make sure that all images have the same size?
Image of listView
This is my XML code :
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:weightSum="1">
<ImageView
android:id="#+id/imageView1"
android:layout_width="150px"
android:layout_height="150px"
android:adjustViewBounds="true"
android:layout_weight="0.1"
android:scaleType="fitXY"
android:layout_marginBottom="1dp"/>

To deal with different aspect ratio images your best approach is to choose a aspect ratio in your layout and center crop your images so they fill the available space.
<ImageView
android:layout_width="160dp"
android:layout_height="90dp"
android:scaleType="centerCrop" />

Well for better size, create linear layouts for each row containing an Imageview and Edittext.
You have set ScaleType to fitXY and that is good. Now use dp or fill_parent for Imageview size.

(Posted on behalf of the OP).
I have solved this - I have simply remove this android:layout_weight="0.1".

Android GridView columnWidth to make my GridView take up the entire screen width

I have a GridView which displays the user's photos. What I want to find is the exact columnWidth I have to specify so that the number of columns will vary from device to device, but always take up the entire screen (like QuickPic does). Right now my code is as follows:
//GridView inside Fragment layout file
<GridView
android:id="#+id/gridview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:columnWidth="90dp"
android:horizontalSpacing="2.75dp"
android:verticalSpacing="2.75dp"
android:numColumns="auto_fit"
android:stretchMode="columnWidth" />
//GridView row
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView android:id="#+id/ivPhoto"
android:layout_width="90dp"
android:layout_height="90dp"
android:scaleType="fitCenter" />
</RelativeLayout>
With my code, I get a lot of whitespace I don't want. I want it to have whitespace, but very little. I want the Grid to fill the entire screen with columns (photos), but leaving some little whitespace between them.
What would the perfect columnWidth be?
Thank you.

Making the Gridview adapt to different screen sizes is a little tricky using xml. A good solution is to adjust the size of the gridviews in your adapter's getView() method.
check out this example.
Adjust GridView to all Screen Sizes

Android Padding not affecting layout

OK, Im starting to get the hang of how XML operates with the Android interface, but I've ran into a problem...
I just have a HorizontalScrollView with a RelativeLayout inside to which I will place other views later. The HorizontalScrollView as you can see is sitting above a button, and below another button. I like where its placed, but I dont want it exactly right above and below the buttons. I would like some spacing (padding). Ive tried adding padding but it seems to have no effect...
Heres my attempted XML:
<HorizontalScrollView
android:id="#+id/scrollview_xyzInfo"
android:layout_width="match_parent"
android:layout_height="130dp"
android:layout_above="#+id/button_refresh"
android:layout_alignParentRight="true"
android:layout_below="#+id/button_mySettings"
android:paddingTop="20dp"
android:paddingBottom="20dp"
android:background="#drawable/refresh_selector" >
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="match_parent" >
</RelativeLayout>
</HorizontalScrollView>
Any help would be much appreciated :-)

Nevermind! Use margins when seperating two views like so:
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="10dp"
android:layout_marginBottom="10dp"
Answer Found at:
Padding not working Android

Padding and margin works only with LinearLayout. Which layout are you using?

Two TextViews clashing in Android

I am trying to make two TextViews that will be on the same row. The first one should be left aligned and the second one right aligned, when one of them becomes to big the first one (the left aligned should go on new row). I was able to make the first one to go on new line when the second TextView (the right aligned one) became too big but the problem is that it doesn't display the whole information from it. So anyone has any ideas. I'd like it to be with RelativeLayout but any help would be appreciated.

You should play with android:layout_weight to acheive this , this is how it should be :
<LinearLayout .....
android:orientation="horizontal" >
<TextView android:id="#+id/txtView1"
android:layout_height="wrap_content"
android:gravity="left"
android:text="TextView Left"
android:layout_width="0dp"
android:layout_weight="1" />
<TextView android:id="#+id/txtView2"
android:layout_height="wrap_content"
android:gravity="right"
android:layout_width="0dp"
android:text="TextView Right"
android:layout_weight="1" />
</LinearLayout>

You should try putting the two textviews into a linearlayout, set the layout_weight="1" on both textviews and their layout_width="0".

give weight = 1 for both text views....
if it does't work....change relative layout to linear layout or table row and give weight to 1 for both text view

Put your TextViews in LinearLayout and set layout_weight=1. it will solve your problem.