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Activity layout android ImageView, ImageButton scaling

I want to achieve something of the format as shown in the image. The blue part is background, the image of the guy and girl is a ImageButton. The original images for these are 88x128 (trainer000, trainer001). I want to rescale the ImageButton such that the image covers the entire height and the width is adjusted accordingly. Now I found 2-3 ways to do so but they make use of a separate class to calculate width. I want to know if there is a way to do it purely in the xml file itself.
What I used:
`
<ImageButton
android:id="#+id/maleimage"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:adjustViewBounds="true"
android:scaleType="fitStart"
android:layout_alignParentLeft="true"
android:src="#drawable/trainer000" />
<ImageButton
android:id="#+id/femaleimage"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:adjustViewBounds="true"
android:scaleType="fitStart"
android:layout_alignParentLeft="true"
android:src="#drawable/trainer001" />
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:textColor="#000000"
android:text="Are you a boy or a girl?"
android:textAppearance="?android:attr/textAppearanceMedium" />
`
What I want is this:
http://imgur.com/9D6XZUT
EDIT: Found the solution. I just used Studio's Layout editor.

Android Studio Layout for 4 images

I'm having some issues with laying out an activity layout in xml, well I'm using the Design option and the layout is shown in xml below, which is all embedded in a RelativeLayout.
Basically, what I want to have is four even ImageViews which I'll be adding images too, for a Quiz and there are 4 squares, two on top and two on bottom which altogether will make a larger square.
What I have is ok, but I think there should be a better or standard way or laying out stuff like this with Android?
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/imageView"
android:maxWidth="100dp"
android:maxHeight="100dp"
android:minHeight="100dp"
android:minWidth="100dp"
android:nestedScrollingEnabled="false"
android:layout_toStartOf="#+id/imageView2"
android:layout_alignTop="#+id/imageView2"
android:layout_toLeftOf="#+id/imageView2" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/imageView2"
android:maxWidth="100dp"
android:maxHeight="100dp"
android:minHeight="100dp"
android:minWidth="100dp"
android:nestedScrollingEnabled="false"
android:layout_marginTop="94dp"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_marginRight="89dp" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/imageView3"
android:maxWidth="100dp"
android:maxHeight="100dp"
android:minHeight="100dp"
android:minWidth="100dp"
android:nestedScrollingEnabled="false"
android:layout_below="#+id/imageView2"
android:layout_alignLeft="#+id/imageView2"
android:layout_alignStart="#+id/imageView2"
android:layout_alignRight="#+id/imageView2"
android:layout_alignEnd="#+id/imageView2" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/imageView4"
android:maxWidth="100dp"
android:maxHeight="100dp"
android:minHeight="100dp"
android:minWidth="100dp"
android:nestedScrollingEnabled="false"
android:layout_below="#+id/imageView"
android:layout_alignLeft="#+id/imageView"
android:layout_alignStart="#+id/imageView" />

You can use a GridView for the layout of your images and I think you can use layout_weight and weightSum to avoid having to set a definite size for your images and worrying about it not working properly on different screen sizes. That and the worry of images overlapping.
Here's an SO question that covers using a two column gridview for images as well, I'm not sure if this would help you either but since you said two images on top and two on bottom this might still be useful in a way. You can refer to this SO question and the marked answer for a better explanation on what layout_weight does and here's a reference for weightSum.

I have solved this problem by using the LinearLayouts, each with 2 ImageViews, nested within a parent LinearLayout for the actual form. The parent LinearLayout has the orientation="vertical" and the nested LinearLayout="horizontal".

How can I evenly space my ImageViews in a RelativeLayout

I had a Android application built in which I had 3 ImageViews placed horizontally across a LinearLayout, they were placed with a android:layout_width="0dp" and android:layout_weight="1" such that they had an even spread in the layout.
Now I have to switch to use a RelativeLayout (because I want to overlap another image and that can't be done with a LinearLayout) so I want to start with replicating the same effect of having the 3 ImageViews evenly spread/scaled across the parent layout, but I'm not sure how to achieve this.
I feel like I need to make use of the android:scaleType... maybe center crop:
Scale the image uniformly (maintain the image's aspect ratio) so that both dimensions (width and height) of the image will be equal to or larger than the corresponding dimension of the view (minus padding).
Which sounds good but I can't seem to get it to work right... Any thoughts on how I would achieve this even spread of ImageViews across my RelativeLayout?
Snippet of code right now:
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal" >
<ImageView
android:id="#+id/dragcircle"
android:layout_width="wrap_content"
android:tag="circle"
android:layout_alignParentLeft="true"
android:layout_height="wrap_content"
android:adjustViewBounds="false"
android:scaleType="centerCrop"
android:src="#drawable/circle" />
<ImageView
android:id="#+id/dragsquare"
android:layout_width="wrap_content"
android:tag="square"
android:layout_height="wrap_content"
android:layout_toRightOf="#id/dragcircle"
android:adjustViewBounds="false"
android:src="#drawable/square" />
<ImageView
android:id="#+id/dragtriangle"
android:layout_width="wrap_content"
android:tag="triangle"
android:layout_height="wrap_content"
android:layout_toRightOf="#id/dragsquare"
android:adjustViewBounds="false"
android:src="#drawable/triangle" />
Note: I can't find a question with the same constraints as this one on SO. There are a number of questions like:
Android: how evenly space components within RelativeLayout?
and
android RelativeLayout, equal spacing?
But if you check out the details you'll see that they are people who have not considered the LinearLayout as an option for equal spacing and switching layout types ends up being the solution. I have, I was using it, but it does not work for me because I need to overlap an image:
Note the example, I have 3 ImageViews with basic shapes, but I also have a 4th ImageView (it starts hidden) which is overlapping the middle one. This is why I must use a RelativeLayout

I think you're going to want to go back to your original LinearLayout to meet all of your needs here.
If the size of your fourth image must match one of your existing image then either you'd want to create a resource that is a composite of the two images to swap to when it needs to be overlaid or replace your center ImageView with a RelativeLayout or FrameLayout that contains the ImageView. When you need to add the fourth image, add it to that layout.
Something like:
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<ImageView
android:id="#+id/dragcircle"
android:layout_width="0dp"
android:layout_weight="1"
android:tag="circle"
android:layout_height="wrap_content"
android:scaleType="centerCrop"
android:src="#drawable/circle" />
<FrameLayout
android:id="#+id/centerimagewrapper"
android:layout_height="wrap_content"
android:layout_width="0dp"
android:layout_weight="1" >
<ImageView
android:id="#+id/dragsquare"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:tag="square"
android:src="#drawable/square" />
<ImageView
android:id="#+id/arrow"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:src="#drawable/arrow"
android:visibility="invisible" />
</FrameLayout>
<ImageView
android:id="#+id/dragtriangle"
android:layout_width="0dp"
android:layout_weight="1"
android:tag="triangle"
android:layout_height="wrap_content"
android:src="#drawable/triangle" />

You could hide the icon you want to place on existing images and keep your previous LinearLayout to achieve this. Each component of your LinearLayout would be a custom layout (inflated):
<RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/relativeLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
>
<ImageView
android:id="#+id/img"
android:layout_width="100dip"
android:layout_height="100dip"
android:layout_centerInParent="true"
android:scaleType="fitXY"
android:background="#android:color/transparent"
android:src="img1_src"
/>
<ImageView
android:id="#+id/imgOverlap"
android:layout_width="50dip"
android:layout_height="50dip"
android:layout_centerInParent="true"
android:scaleType="fitXY"
android:adjustViewBounds="true"
android:background="#android:color/transparent"
android:src="img2_src"
android:visibility="gone"
/>
</RelativeLayout>
It appears not possible to use "layout_weight" in a RelativeLayout.
You could also consider a GridView and set its number of columns; each item of the GridView would be the inflated layout above.

you could also do it programatically and tell them to be 33% of the screen width. Look at DisplayMetrics and the attributes of each ImageView if you want to achieve this.

Try this
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="#+id/dragcircle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:scaleType="fitXY"
android:src="#drawable/circle"
android:tag="circle" />
<ImageView
android:id="#+id/dragtriangle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:src="#drawable/triangle"
android:scaleType="fitXY"
android:tag="triangle" />
<ImageView
android:id="#+id/dragsquare"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toLeftOf="#+id/dragtriangle"
android:layout_toRightOf="#id/dragcircle"
android:src="#drawable/square"
android:scaleType="fitXY"
android:tag="square" />
</RelativeLayout>

Using ImageViews instead of buttons in Android

I'm building my first android application.In my starting activity I want to use some ImageViews instead of buttons,These ImageViews are big tiles that their width should always match the parent Layout.I've drawn my imageViews to fit a normal mobile screen (4 inches I think ) how can i have them fit any device? like a 7 or 10 inch Tablet?
EDIT: Well sadly I used the fitCenter and didn't make any difference,that's my xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="#+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="24dp"
android:layout_marginTop="122dp"
android:drawableLeft="#drawable/home"
android:drawablePadding="#dimen/padding_small"
android:padding="#dimen/padding_small"
android:text="My Classes"
android:textSize="#dimen/a12" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button3"
android:layout_alignRight="#+id/button3"
android:layout_centerVertical="true"
android:layout_below="#+id/button3"
android:layout_marginTop="35dp"
android:drawableLeft="#drawable/image"
android:text="Update Offline Data"
android:textSize="#dimen/a12" />
<Button
android:id="#+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button1"
android:layout_alignRight="#+id/button1"
android:layout_below="#+id/button1"
android:layout_marginTop="35dp"
android:drawableLeft="#drawable/configure"
android:text="Settings"
android:textSize="#dimen/a12" />
<ImageView
android:id="#+id/imageView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="38dp"
android:scaleType="fitCenter"
android:src="#android:drawable/bottom_bar" />

for fit the images you can use android:scaleType="fitCenter" attribute in your control
like this:
<ImageButton
android:id="#+id/imageViewSecurity"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/security"
android:background="#null"
android:scaleType="fitCenter" />

Instead of giving them an absolute width, use the constant match_parent as android:width, that will always give them the same width as the parent view. The root view of an activity will have the same size as the screen with this width and/or height.
To also size an image in the ImageView to the correct size, use fitCenter as android:scaletype.

If all you're trying to do is getting the image to match the width of its container (and its container is matching the width of *its parent) then you should set the image as the background of the View, rather than its src. I believe that will stretch it to fill the entire View, whatever its size is.

automatically resize ImageButtons in LinearLayout

Summary: I want a horizontal row of ImageButtons to scale down evenly to fit in the screen size.
I have a row of ImageButtons at the top of the screen. A left-aligned logo ImageButton and then right-aligned ImageButtons for various actions.
Yes, that does sound a lot like a Honeycomb/ICS Action Bar, but the code is targeted for Froyo, so I need to implement the design in 2.2-compatible layouts.
I programmatically detect when I'm on a 7" screen or larger and switch to larger images for the ImageButtons (as the drawable-xlarge directory only works for 10" and up, and drawable-large works for 4" and up).
This works great on a phone or on a 10" tablet. However, on a 7" tablet, the images are too large for the space in portrait mode (the app is locked to portrait mode).
I have tried many different approaches to making the images scale down, as I'd rather not use yet another set of images just for 7" tablets. But the images are not spaced properly, or scale at different levels, or only some of the images appear on the screen. I've used RelativeLayout, LinearLayout, android:weightSum, setting the images as background images, as src images, etc.
EDIT: Another quirk I noticed in my experimentation was that if I set the same layout_weight, the layout worked, forcing each item to have the same width. If I want some items to have different widths--which is necessary in this case, as the first button needs to be substantially wider--then the layout breaks when I set a layout_weight that doesn't match the others. Only one or two of the items appear on screen, the rest presumable being pushed off.
Here's the layout I'm using. This is my best so far--it works great on 10" tablets and phones, and is almost tolerable on 7" tablets. But the logo--which should be the same height as the buttons and about 2.5 times wider--is noticeably taller than the other buttons. Any suggestions on improving the layout?
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/actionBarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0"
android:padding="5dip"
android:gravity="center_vertical"
android:orientation="horizontal"
android:background="#drawable/action_bar_bg"
>
<ImageButton
android:id="#+id/logoButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#null"
android:src="#drawable/save_logo_03"
android:padding="2dip"
android:adjustViewBounds="true"
android:scaleType="centerInside"
/>
<View
android:id="#+id/spacer"
android:layout_width="50dip"
android:layout_height="1dip"
android:layout_weight="1"
android:visibility="invisible"
/>
<ImageButton
android:id="#+id/listButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:src="#drawable/list_button"
android:background="#null"
android:adjustViewBounds="true"
android:padding="2dip"
android:scaleType="centerInside"
/>
<ImageButton
android:id="#+id/mapButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#null"
android:src="#drawable/map_button2"
android:adjustViewBounds="true"
android:padding="2dip"
android:scaleType="centerInside"
/>
<ImageButton
android:id="#+id/ltoButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#null"
android:src="#drawable/lto_button"
android:adjustViewBounds="true"
android:padding="2dip"
android:scaleType="centerInside"
/>
<ImageButton
android:id="#+id/searchButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#null"
android:src="#drawable/search_button"
android:adjustViewBounds="true"
android:padding="2dip"
android:scaleType="centerInside"
/>
</LinearLayout>

Unfortunately, in the end I did have to programmatically change the button sizes depending on the size of the screen.
My final layout looked like this (sanitized):
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0"
android:padding="5dip"
android:gravity="center_vertical"
android:orientation="horizontal"
android:background="#drawable/action_bar_bg"
>
<ImageButton
android:id="#+id/logoButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0"
android:background="#null"
android:padding="2dip"
android:adjustViewBounds="true"
android:src="#drawable/logo"
android:scaleType="centerInside"
/>
<View
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="1"/>
<ImageButton
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0"
android:background="#null"
android:padding="2dip"
android:src="#drawable/button1"
android:scaleType="centerInside"
android:adjustViewBounds="true"
/>
<ImageButton
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0"
android:background="#null"
android:padding="2dip"
android:src="#drawable/button2"
android:scaleType="centerInside"
android:adjustViewBounds="true"
/>
<ImageButton
android:id="#+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0"
android:background="#null"
android:padding="2dip"
android:src="#drawable/button3"
android:scaleType="centerInside"
android:adjustViewBounds="true"
/>
<ImageButton
android:id="#+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0"
android:background="#null"
android:padding="2dip"
android:src="#drawable/button4"
android:adjustViewBounds="true"
android:scaleType="centerInside"
/>
</LinearLayout>
Notice the empty View that fills up available space, pushing the other buttons over to the right side of the screen.
In the code, I check the screen size. If it seems to be >= 7", then I switch to larger images.
If it seems to be >=7" but < 9", then I programmatically change the size of the images--and that I had to experiment with to come up with just the right number for it to work. If I had more images or they changed, I would have to repeat it. I'm not proud of such an inflexible solution, but I couldn't find anything else that worked.

This is what I've got:
In your specific case, we can say that your app layout and buttons size are under dependecy of:
The mobile device screensize/resolution;
The number of buttons in the
row;
I recommend 2 approaches to you:
Implementing your layout with RelativeLayout and weight tags. Flexible layouts can be made very easy with these ones;
Programatically define your button sizes using DisplayMetrics class, something like the snippet in the end of this post, and use an extra .xml file (say integer.xml) where you can define a constant value for your number of buttons;
In this snippet, dm is a structure that holds your device resolutions.
DisplayMetrics dm = new DisplayMetrics();
context.getWindowManager().getDefaultDisplay().getMetrics(dm);
Hope it helped you! :)