So I'm working on Pacman for Android as a learning exercise. I've got the background set in my activity layout, but I'm having trouble making the background fit properly.
I've tried centerCrop and fitXY, with different results, neither of which work exactly. I want to stretch the view to the dimensions of the screen. It appears however that the image view is restricted to the center, like I have 3 imageviews ... but I have only one.
Any thoughts? Do I have to do some of this in code?
Thanks!
<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"
android:background="#000FFF"
tools:context="srg.pmd.GameActivity"
>
<ImageView
android:id="#+id/emptyPacman"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/blank_screen"
android:scaleType="fitXY"
/>
First screenshot is fitXY
Second is centerCrop
The image you are using must be 320x480 then only the image will fit the screen other wise it will get distorted here is a link for more info about the image size Android: Background Image Size (in Pixel) which Support All Devices .hope it works for u
Well, nuts to me. The actual png file was wrong -- it was a lot wider than I assumed. Taking a closer look with an image editor revealed the problem.
Related
I have got a very tiny image:
(image made on gimp, it would be invisible if I pasted it here)
It's 5x5px in size and it has some pixels with 100% transparency and others with 80%.
I'm trying to use it as a background for an ImageView. I want to scale it to higher dimensions. However, when I do that, the overall effect becomes blurry and not what I truly want.
XML Layout
<?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:background="#000">
<ImageView
android:layout_width="500dp"
android:layout_height="500dp"
android:background="#drawable/boxes"/>
</RelativeLayout>
Unwanted result
Question
How do I make it look good? That is, with sharp corner squares.
Investigate using an SVG for the background - these should appear sharp at all sizes
At first, try to resize it MS paint. If this process fails, take a screenshot of that picture to get a more clear view and then resize it again.
I'm trying to display an image but for some reason it's only giving me a smaller (unreadable) version. Is there a way to display the image full screen and enable zooming in/out? I used a fragment to display the image--do I need to create another class to extend the particular fragment...? Here is the imageview:
<ImageView
android:id="#+id/imageView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_margin="5dp"
android:scaleType="centerInside"
android:src="#drawable/rules" />
If the image is not appering in the full screen, probably there is an issue with the ImageView container. The ImageView may be "filling the parent" but the parent is not filling the screen.
Other issue may be the scaleType, are you sure your image is the correct size? If you want to stretch it you have to change the scaleType.
How about this :
Get screen dimensions in pixels
and then something like this (IF you want to resize the image):
Android image on tablets and phones
This is not a complete answer to your question but the programming should be straightforward once you know the size of the screen and the size of the image.
I have an activity that includes a striped background image. Click to enlarge – this is the original image I'm using. There's also a version with a logo for another activity.
It looks fine as is. I set it as a background in the activity through XML, something like this.
I need the hack as an ImageView to be able to properly centerCrop a logo in the background, but this is irrelevant to the issue, as it persists when setting the background for the RelativeLayout and removing the ImageView.
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<ImageView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:adjustViewBounds="true"
android:scaleType="centerCrop"
android:src="#drawable/background_striped" />
Note that since there has to be a logo inside the image, I can't stretch it artificially or have it repeat.
In the layout preview screen, it looks like this:
In the emulator, it looks like this:
As you can see, it looks quite bad, compared to how I'd expect it:
Naturally, I've created versions of the striped background for all display resolutions (from ldpi to xhdpi), but they always seem to be scaled in a pretty bad way.
Is there any way to get the background scaled in a higher quality? Just using the xhdpi version won't result in better quality—it will just make the scale result worse and more washed out.
For scalable drawables it is better to use a 9-patch. You can create one with your small striped background image using the android 9-patch tool:
http://developer.android.com/tools/help/draw9patch.html
Try using repeat. I tested it and it seems to look fine.
<?xml version="1.0" encoding="utf-8"?>
<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
android:src="#drawable/background_striped"
android:tileMode="repeat" />
So I'm trying to put an image inside a scrollview and have the image stretch to fit different sized screens. It'll stretch horizontally, but vertically it always comes out messed up.
I've read so many pages of people with similar problems, but their solutions never work for me. I've tried every different combination possible using different scaleType,layout_width and layout_height, along with trying changing other things around. The closest I've gotten to getting it to work is shown in the code below, using scaleType="centerCrop". It's the only one that stretches the image vertically in ratio, but it cuts off a big chunk of the image from the top and bottom, it'll scroll up and down the image, but only the middle part shows.
The image is a 480x5500 jpeg, if that matters. Originally before I started messing with all that, the app worked just fine on my phone, but then later I realized the image was crunched when I tried it on a tablet. There's gotta be a way to do this in the xml right? I really don't want to have to do things with the image in the java code part. Also I'm hoping to be able to do this using just one image, I don't want to have use a different image for different screen sizes. Please help, thanks.
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/scrollView1"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ImageView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:scaleType="centerCrop"
android:src="#drawable/paper" />
</ScrollView>
may be this help you,
make both height and width wrap_content of ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
and no need ScrollView here.
Try using custom ImageView like AspectRatioImageView mentioned here:
https://stackoverflow.com/a/4688335/944070
the next sample is more than what you ask for :
http://www.androidviews.net/2012/11/photoview/
https://github.com/chrisbanes/PhotoView/tree/master/sample
https://play.google.com/store/apps/details?id=uk.co.senab.p
hotoview.sample
it fits the image to the screen , plus it allows to zoom in/out using pinching gestures.
I have a 9-patch background image for my layout and it works fine when the display resoluton is smaller then the image (800x480px). But when I test it on a device with a bigger resoluton, for example 1280x800px, than the layout is broken. Here are two pictures:
The normal and broken layout
The 9-patch image
Here is the relevant layout-code:
<LinearLayout
android:id="#+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#drawable/chalkboard"
android:gravity="top|center"
android:orientation="vertical" >
All in all, the 9-patch doesn't work when the image scales up. But what's the reason and how can I handle it?
Best regards!
You are stretching the frame as well. Just don't stretch the frames on the side. This should do the work: