Develop Reference

How to Fit the Downloaded Images into the ImageView (to Eliminate the Need for Scrolling)

My app gets the album cover images from an Internet source. The image dimensions are varying from 200*200 to 400*400, therefore making scrolling necessary on some smaller devices. The layout resource codes and layout view are below.
The ImageView is the view with the red borders.
All I need is to make downloaded image to fit the imageView, so that the users won't have to scroll vertically to see the view below. How can I accomplish that? Thanks in advance...
<LinearLayout
android:id="#+id/llayoutAlbumCover"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1"
android:gravity="top|center" >
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ImageView
android:id="#+id/albumCover"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="3sp"
android:scaleType="fitCenter"
android:src="#drawable/loading" >
</ImageView>
</FrameLayout>
</LinearLayout>

use imgview.setScaleType(ScaleType.FIT_XY);
Through xml also you use like this
<ImageView
android:id="#+id/albumCover"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="3sp"
android:scaleType="fitXY"
android:src="#drawable/loading" >
</ImageView>
PS:: I know this is what you wanted, but for images where you care about aspect ratio, this will stretch it out.

You can set scale, for example imageView.setScaleType(ScaleType.fitCenter)
Samples: http://etcodehome.blogspot.com/2011/05/android-imageview-scaletype-samples.html

Using android:scaleType="fitCenter" guarantees at least one axis will be fitted in the view. Use android:scaleType="centerInside" instead. The dimensions will be equal or smaller then your view. For more options please check ImageView.ScaleType

Image in background without resizing the parent layout

I've got a linear layout with layout_height set to wrap_content, so that the layout height is depending of the number of text lines in it.
The problem (that has driven me crazy all morning) is that I want to set an image as background of the layout, but to be sure the image can be used whatever the layout size, I've made the image quite big in height. The goal is for the image to be cropped in height if the layout is small. But I can't manage to do that: whatever I try, the layout is resizing according to the image height.
So, how can I set an image as background of something, but cropping itself so that it doesn't reisze parent layout (of course, I don't know the parent layout size because it depends on the text inside).
As english is not my first language, hope my question is clear...
Thank you in advance.
Edit: some code sample and screenshots:
This is the original card, without the image in background.
This is the code with the image view added:
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/drill_background_img" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
... [Card Content Here]
</LinearLayout>
</FrameLayout
... and the result is my card is stretched to the height of my image. But I don't want that. I want the card the same size. But I cannot reduce image height, because, the card can have more text and be more tall, and so my image will have to be taller.

This is code for a Linear Layout that will be in center and adapt the size of text inside.
I have tested it .
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:orientation="vertical"
android:layout_centerHorizontal="true"
android:layout_marginLeft="25dp"
android:layout_marginRight="25dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/tvInfo"
android:textColor="#ffffff"
android:background="#drawable/toast_frame"
android:gravity="center" />
</LinearLayout>
Give it a try it should work. Here I am using an Image that is small enough to fit the smallest size. Android will automatically strech it. I use 9patch Images for such cases. To know more about 9patch visit this Link from developer.android.com
Simple online tool to generate 9patch
Also check this SO Answer
I have uploded toast_frame.9.png file here so that you can test it with the code I have given above
**EDIT **
change
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/drill_background_img" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
... [Card Content Here]
</LinearLayout>
</FrameLayout>
to
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/drill_background_img">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
... [Card Content Here]
</LinearLayout>
</FrameLayout>
I hope this will work.

I don't think you can crop the image when using it as "background" attribute for any view.
Image will always be stretched to fill the whole background. Normally for background you should use Nine Patches. Get familiar with it and maybe you can change your functionality or UI spec to use them instead of normal images.
The only way I know of cropping the image is in the ImageView and it's image set by "src", not "background".
I would generally avoid using fixed size images in the components that can change size. You also have to remember that in Android almost everything change size when you think about different orientations, screen sizes, screen densities.

I think that background is always resized to fit container size. But you can use FrameLayout or RelativeLayout and ImageView.
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clipChildren="true">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
...your content here...
</LinearLayout>
</RelativeLayout>

Center ImageView inside another ImageView in Android

Well I have to fit one ImageView inside another one. It is smaller and has to be exactly at the center. I have both images scaled for different screen resolutions but I can test only on one phone and I am wondering if I set the second image's height and width with dpi to fit my screen resolution will it be perfectly matched on all screens or is there any property in Android aside from setting the height and width that will automatically center one ImageView inside of other ImageView?
Edit: It's in RelativeLayout and the ImageViews are at the top left so I haven't added anything specific to the because they by default are there.
Edit2: Well changing the first ImageView to be RelativeLayout helps center the second image inside of it but then the RelativeLayout grows too big and enlarges the image that is background. Is there a way to make the RelativeLayout be as big as its background?

try this
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="250dp"
android:layout_height="250dp" >
<ImageView
android:id="#+id/base"
android:layout_height="250dp"
android:layout_width="250dp"
android:src="#drawable/home"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true" />
<ImageView
android:id="#+id/center"
android:layout_height="150dp"
android:layout_width="150dp"
android:src="#drawable/home"
android:layout_centerInParent="true"
android:layout_centerVertical="true" />
</RelativeLayout>
</RelativeLayout>

You cannot put an imageView inside another. Hope the following code will be helpful for you.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/background_image"
android:gravity="center" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/image_on_center" />
</LinearLayout>

Use RelativeLayout and then use android:layout_centerInParent="true" remember the order you add the ImageViews will decide what is on top :)

Try this:
android:layout_gravity="center"

RelativeLayout ignores second ImageView?

I have the following XML layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/mainLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal|center_vertical">
<ImageView
android:id="#+id/IVLEFT"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentLeft="true"
android:background="#ff0000"
android:padding="1dp"
/>
<ImageView
android:id="#+id/IVRIGHT"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_toRightOf="#+id/IVLEFT"
android:layout_alignParentRight="true"
android:layout_alignBottom="#+id/IVLEFT"
android:layout_alignTop="#+id/IVLEFT"
android:src="#drawable/shadow_pages"
android:background="#00ff00"
android:padding="1dp" />
</RelativeLayout>
I would expect my layout to have 2 ImageViews - one to the left, one to the right.
But what actually happens is:
During runtime I set IVLEFT's image to a large image (say 1024X768) - and it covers all of my layout, abandoning IVRIGHT (I cant even see it)
Any ideas?

It is because your RelativeLayout is wrap_content in width. it takes all the space it needs even if it is outside the screen.
Use fill_parent instead.

Its because you have given first ImageView width and height to fill_parent. So it will acquire the whole layout. Then also, your layout depends on your first image, because if you give a large image to the first Imageview, it will take the whole layout.
If you want to show 2 images side by side, try using linearlayout with layout_weights to two imageViews.
Also give your RelativeLayout width and height to fill_parent

Change the RelativeLayout width to fill_parent
There is no ImageView with the id = "#+id/magazineImageView" in your xml, if you mean "#+id/IVLEFT", then the 1st image itself is occupying the whole Screen width, hence you cannot see the 2nd image.
If you want to see the 2nd image make both the ImageView width as wrap_content or some hard coded value
More importantly when you are using any View id as a reference dont use + sign in the id. + sign is used to define an id for a view, for the first time
use:
android:layout_toRightOf="#id/magazineImageView"

Try this::
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/mainLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal|center_vertical">
<ImageView
android:id="#+id/IVLEFT"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:background="#ff0000"
android:padding="1dp"
android:src="#drawable/ic_launcher"/>
<ImageView
android:id="#+id/IVRIGHT"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="#+id/IVLEFT"
android:layout_alignParentRight="true"
android:layout_alignBottom="#+id/IVLEFT"
android:layout_alignTop="#+id/IVLEFT"
android:src="#drawable/ic_launcher"
android:background="#00ff00"
android:padding="1dp" />
</RelativeLayout>

How to display the image so that it fits the entire screen?

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/LinearLayout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:scaleType="fitXY"
android:adjustViewBounds="true"
android:layout_x="0dip"
android:layout_y="0dip"
android:background="#drawable/mlview1" />
I'm using android emulator 2.2 . My image occupies the screen horizontally but vertically shows a large gap from the Bottom. The image size is 800X600 . should it be re-sized and then used?

Make sure that:
1. Both height and width on both parent and child is fill_parent
2. You are setting the src property and not the background one on the image
Note: You also don't need the layout_x nor layout_y