Question

I have such layout:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">

<TextView
    android:id="@+id/title"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_centerVertical="true"
    android:layout_toLeftOf="@+id/my_image"
    android:ellipsize="end"
    android:singleLine="true"
    android:text="Some text"
    android:textAppearance="?android:attr/textAppearanceMedium" />

<ImageView
    android:id="@+id/my_image"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignTop="@+id/title"
    android:layout_alignBottom="@+id/title"
    android:layout_alignParentRight="true"
    android:layout_centerVertical="true"
    android:adjustViewBounds="true"
    android:src="@drawable/my_bitmap_image" />

This layout does almost what I need: it makes image view height the same as text view. The image graphic contents stretched also keeping aspect ratio.

But, the width of the image view does not change! As a result, I have a wide gap between text and the image view! As a temporal solution, I override View#onLayout.

The question: how to change image width in xml layout?

UPDATE:

This is a final layout I need (text + a few images).
Look at the first image: its width should be exactly the same as scaled image in it with no paddings and margins:

Answer 1

OK, as I see from the answers, there is no solution to force image views to change theirs width and height proportionally.
So, this can be solved only programmatically.
There is my solution below :

a) Create you custom layout class

(don’t forget to override all the parent constructors with public access modifier, otherwise GUI editor will fail):

public class MyLayout extends RelativeLayout {...

b) Override method: Deprecated – changing layout params in this method might cause side effects. See recommended approach below

protected void onLayout(boolean changed, int l, int t, int r, int b) {

ImageView icon = (ImageView) findViewById(R.id.my_image);
icon.setMaxWidth(icon.getMeasuredHeight());

super.onLayout(changed, l, t, r, b);

}

b) Add creational method:

public static MyLayout createLayout(ViewGroup parent) {
Context context = parent.getContext();
MyLayout item = (MyLayout) LayoutInflater.from(context).inflate(
            R.layout.my_layout, parent, false);    
TextView tv = (TextView) findViewById(R.id.title);
ImageView icon = (ImageView) findViewById(R.id.my_image);
ViewGroup.LayoutParams p = icon.getLayoutParams();
p.width =   (int) tv.getTextSize();;
icon.setLayoutParams(p);
return item;
}

c) Final layout:

<?xml version="1.0" encoding="utf-8"?>
<com.mypackage.MyLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">

<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_toLeftOf="@+id/my_image"
android:ellipsize="end"
android:singleLine="true"
android:text="Some text"
android:textAppearance="?android:attr/textAppearanceMedium" />

<ImageView
android:id="@+id/my_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/title"
android:layout_alignBottom="@+id/title"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:adjustViewBounds="true"
android:src="@drawable/my_bitmap_image" />
</com.mypackage.MyLayout>