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ImageView Scaling: fix height variable width with maxWidth

I am going to show some images, but my constraint is as title. I want to make all images have same height but according to their width they must have different width. I just do not want to lose any part of the image when scaling. here is my code:
<com.android.volley.toolbox.NetworkImageView
android:id="#+id/ImageView_IssueFirstLookActivity_magas"
android:layout_width="wrap_content"
android:layout_height="170dp"
android:layout_marginLeft="32dip"
android:layout_weight="2"
android:maxWidth="40dp"
android:adjustViewBounds="true"
android:scaleType="fitStart" />
I tried all I could with different values of android:scaleType but get nowhere.
here is a figure that what I want but when I play with those properties it dose not scale it as I want for example some time it dose not show image width completely and it crops it badly. Another try for example is android:scaleType="fitStart" which cause the width of my images to be fine but the heights are not fit anymore. Any idea?

andriod ImageView attributes does not support the requirement you said just by statically choosing combination of width,height and saleType in the layout xml.
Instead you can do it in the java code by actually finding the width for the image for a given fixed height and setting them programattically to each view in dp(make sure you do the pixel to dp calculation for achieving right output, salable across devices)

If you don't mind an extra dependency, you can do it with Picasso
Picasso.get()
.load(R.drawable.my_image_resource)
.placeholder(R.drawable.ic_image_placeholder)
.error(R.drawable.ic_broken_image)
.resize(0, (int) imagefixedHeight)
// optional:
// .centerInside()
.into(myImageView);

Android: 9-patch image not stretching as expected

The actual image is this:
the red boxex are where i made 1 px black likes. Even the preview shows fine. So no problem with 9-patch
but the image i get for the following layout is:
<ImageView
android:id="#+id/image_landing"
android:layout_width="fill_parent"
android:layout_height="50dp"
android:background="#drawable/loginheader"
android:contentDescription="#string/login_header"
/>
I Expected, the logo to be on the left and black dots on the right and the rest of the space between them is filled with grey color i selected on the top
Thank You

Is your ImageView really bigger than your 9patch?
If not, you need to change scaleType as defaut is FIT_CENTER.
Use android:scaleType="fitXY" or android:adjustViewBounds="true".

It looks like your 9 patch is larger than the ImageView that you are trying to put it in. Try setting the ImageView to wrap_content to see if it fixes the problem. If it does, try making the 9 patch smaller, the ImageView bigger or set the scaleType as pcans mentioned.

Android ImageView ScaleType and item height

Things looked quite simple first but in the end the result is not good.
I have an image which has a width larger than screen's width. So I need to scale it down in my imageview. I looked over the ScaleType options and tried them all but none is ok. First "center" only displays the image centered on the layout, no scaling done. "fitCenter" scales the image to fit in my layout but has a major drawback: the height of the item remains as it would have the large image in it. Take a look at the second screen in the attached image. How can I force the list item, to reduce its height to wrap both the text and the image ?

Use the scaletype which seems best to you ( I guess you like what you see with fitCenter). The additional thing that you must do is
android:adjustViewBounds="true"
in your ImageView.
or you could go with FitXY but sometimes the result is not exactly what you want.

use android:scaleType="fitXY"

Could you use FitXY?
This would work if you knew the size of the area you were putting the image into.
CentreInside may also work, I've used this to scale down images, but I think it depends if you've control of the size of the bounding layout element.

You either need to set android:height = "wrap_content" on your outer container, or set static height of TextBox and give ImageView android:weight = "1" so that the ImageView takes remaining space in container.

Android - Autofit image in ImageView?

I will be displaying an image in an ImageView that will always be much higher and wider than the size of the screen. Is there a simple way to scale the image down so that it fills the ImageView exactly?

Try setting up the scale type in the xml, i believe it scaleXY is the one you are looking for scale types
<ImageView
android:scaleType="scaleXY"
android:src="#drawable/my_image"/>

If you're loading the view in XML, the android:scaleType parameter should do the trick.
http://developer.android.com/reference/android/widget/ImageView.html#attr_android:scaleType

android image view in list will not scale to width

New to Android, bad with layouts so this is probably a simple solution but I can't find it. I am adding an image to a ListView, the ListView is defined like this:
<ListView
android:id="#+id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"/>
Image is added like this:
ImageView image = new ImageView(context);
image.setScaleType(ImageView.ScaleType.FIT_CENTER);
image.setAdjustViewBounds(true);
image.setImageDrawable(drawable);
return image;
in the ListAdapter. I want the Image to scale so the width fills the screen and the height adjust proportionally. What is happening is the image is scaling down so the height fills the list row but there is plenty of room for the width to be bigger. I had this working earlier but can't figure out what changed. Why is the image shrinking to some seemingly arbitrary height and how do I get it to fill the screen by width?
Edit:
So this happened when I started building for 1.6 instead of 1.5, probably a resolution thing. I guess the image is a bit sharper when it's small but I want it larger, it's almost unusable smaller and I am not able to get a larger image, it's from the web.

I think there is no really "simple" solution, but it's already answered here (without list's, but i don't think it matters):
Android: How to stretch an image to the screen width while maintaining aspect ratio?

Have you tried ImageView.ScaleType.FIT_XY ?
Scale Types