I created a 9patch image and somehow it does only stretch vertically.
I tried other 9-patch images, but they have the same effect, whyle they work in other situations. So the 9patch should be fine I think.
This is my XML code:
..
<ImageView
android:id="#+id/bottombar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:contentDescription="#string/app_name"
android:src="#drawable/bar" />
</RelativeLayout>
Anybody had the same issue and know how to solve it?
Thanks
If you are sure that the height of your View is really taller than the current image (as the others have suggested) then you should change your ImageViews scaleType. The default is FIT_CENTER which does not stretch the image, you should set it to FIT_XY.
Also you may try to set your 9-png file as the background of your ImageView not as the src and I think this will also stretch the file.
Did you add a black dot to the top dead center as well as the left side center?
The issue may be in layout_width="match_parent" you have mentioned width to match parent this may be the reason of 9 patch image to stretch vertically. But for height you have written height="wrap_content" So it doesnt stretch in height
You have wrap_content specified for the height. Are you sure the content is tall enough to make the image stretch?
Related
I want to set a background to any layout.
Usually, I would go on about this like here:
<LinearLayout
android:orientation="vertical"
android:background="##drawale/somedrawable"
android:gravity="center"
android:layout_width="match_parent"
android:layout_height="100dp"/>
But this will always make the background fit the LinearLayout. But what if the layout was smaller in height than the image I set as background? I do NOT want to destroy the image's aspect ratio but just center the image inside the layout and have the height overlap so that it isn't visible anymore.
To clarify:
Left is what happens currently, but right is how I want to to be. Since the layout container is smaller than the imageview or background image is, it is supposed to stay centered but only show what fits without altering the aspect ratio.
Use an ImageView inside the linear layout with width and height match_parent and set the scaleType="centerCrop"
<ImageView
android:src="#drawable/somedrawable"
android:scaleType="centerCrop"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
you cannot apply the scaletype property in linearlayout its better to use imageview to achieve this following is the link how to use scaleType attribue, to avoid the stratching behaviour use the 9 patch image, follwoing is the link to convert your image into 9patch
I have a image view inside of a relative view, as per code below
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal">
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="#drawable/maintenance_banner"
android:layout_alignParentTop="false"
android:layout_margin="0dp"
android:padding="0dp"/>
</RelativeLayout>
what i don't understand is the gaps at the top & bottom, as I have set both height to wrap_content, the gaps shouldn't be part of the content, only the imageview it self isn't it? Or does it means the gaps are part of the image view it self? but i set the padding to 0. also, for some reason I can get ride of them by setting scale type.
The image probably has another aspect ratio then your imageView.
Try to set the android:scaleType to centerCrop or whatever else does work for you.
The default scale type is: FIT_CENTER and FIT_XY for buttons.
Hope this helps
EDIT: Sorry I haven't seen the wrap content.
From the screenshot it looks like you have other views below, are you including this layout file into another one?
Cheers
I have an image which is 450px square below some text in a linear layout and wanted it to fill the width of the device, which I done by using;
ImageView android:id="#+id/my_image_container"
android:src="#drawable/my_image"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#color/orange"
android:scaleType="fitStart"
This has worked in a fashion, but the ImageView element fills the rest of the screen and any elements placed under do not show.
Does anyone know of a way to trim the bottom of the space that the ImageView uses.
Hopefully this image can explain it better - I want to crop the empty area under the image (orange background).
I recommend you to use a RelativeLayout instead of a LinearLayout. You can then use android:layout_above="" and android:layout_below="" to ensure that you get the layout you want.
I've got an ImageView that I've wrapped in a LinearLayout. The LinearLayout has a background drawable which is basically a border, so the effect is that my image has a border around it.
However no matter what I try, I get a big chunk of empty space underneath my image, which is pushing the lower border of my LinearLayout down. I want the LinearLayout to wrap tightly around the image with no padding (except for the 1sp that I specify)
This is how I've defined the two
<LinearLayout
a:orientation="vertical" a:layout_width="wrap_content"
a:layout_height="wrap_content"
a:gravity="top"
a:padding="1sp"
a:background="#drawable/heading_background">
<ImageView a:src="#drawable/photo"
a:layout_width="wrap_content"
a:layout_height="wrap_content"
a:scaleType="fitStart"/>
</LinearLayout>
Can anyone tell me what I'm doing wrong?
Thanks
I don't know how big your drawable is, but if it's really big* then your imageview tries to size itself to that format (wrap_content), but also is restricted by the actual space it's got. What happens exactly is a bit fuzzy for me, but with pictures that get resized (even when keeping aspect ratio like your fitStart does) I had to add the adjustviewbounds attribute: http://developer.android.com/reference/android/widget/ImageView.html#attr_android:adjustViewBounds
It resizes the ImageView back to the format I'd think it would allready have, but in my case it was needed to get it to actually "wrap" the content....
*And I don't mean enormous, just "big enough so it has to be scaled down a bit)
You will want to set a:adjustViewBounds as true in your ImageView. This ensures that the layout will wrap tightly around the image.
android:adjustViewBounds="true"
I have an ImageView, and I want it to be clickable. The image itself is only 32x32 pixels, but I want the clickable region to be larger so it's easier to hit. I was hoping I could set the layout margin values to increase the size of the imageview's clickable area:
<ImageView
layout_width="32dip"
layout_height="32dip"
layout_margin="20dip" />
That doesn't work, what I could do is just recreate the image resource to have a larger transparent region around it. That's a bit annoying because it's hard to tweak if I ever need to change the clickable region. It's not just a single png either, it's a statelistdrawable so I have to resize 3 different pngs if I ever need to tweak the clickable area.
Anything else I can do?
Thanks
Use padding. layout margins are used if for inserting space outside the boundary of the view.
for equal padding on all sides
<ImageView
android:padding="20dip" />
or to set the padding on each side
<ImageView
android:paddingLeft="10dip"
android:paddingRight="15dip"
android:paddingTop="23dip"
android:paddingBottom="12dip" />
Hope that helps !
Instead of resizing the image (Peter Knego's answer) or increasing padding (Saimon's answer) I suggest to set the minWidth and minHeight attributes in combination with scaleType="center":
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minWidth="40dp"
android:minHeight="40dp"
android:scaleType="center"
android:src="#drawable/your_image" />
That makes sure that small images have at least a size of 40x40dp while the image is not up-scaled if it's smaller. If one day the image is going to be replaced with another image larger than minWidth and minHeight it will not grow larger than 40x40dp as it gets downscaled. Thus a minimum clickable dimension of 40x40dp is always guaranted and the image is always displayed nicely.
Suggestions (never tried it myself):
Create ImageView as large as you want than put image into it without scaling
ImageView.setScaleType(ImageView.ScaleType.CENTER).
Brute force approach: create new larger png that has original image centered and the rest of it is transparent.
Use like below; where width/height is your touch radius
<ImageView
android:id="#+id/editProfile"
android:layout_width="32dp"
android:layout_height="32dp"
android:padding="8dp"
android:background="?attr/selectableItemBackgroundBorderless"
android:src="#drawable/ic_edit"
android:scaleType="fitCenter"
/>
In the above code, I wanted my src size to be viewed as 24dp width/height. And touch radius of 32dp. so I had used padding of 8dp.