I'm trying to adjust the all_inclusive svg image to my rectangular button. The shape itself is rectangular as well but the vector asset is square (24x24) with white spaces above and under the shape. These spaces force the shape itself to be very small. How to make the all inclusive svg rectangular by deleting that padding on top and on bottom?
In this picture the image is set to fit the guidelines on the left, top and right side:
<ImageView
android:id="#+id/imgInfinity"
app:srcCompat="#drawable/ic_infinity"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintDimensionRatio="1:1"
app:layout_constraintTop_toTopOf="0.75"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="0.75"
app:layout_constraintEnd_toEndOf="0.25" />
Things that did not work:
pivot vector asset with a group -> I just cant figure out the dimensions without messing up the original shape. Same storty with scaleX/Y or translateX/Y. I got it to work on my other buttons with simpler shapes though.
adjusting android:viewportheight or android:height -> it deshapes the picture to a weird form
crop svg online --> as Googles original SVG pathData is already 580 characters long, cropping tools only make it to large for android to deal with (above 1000 charactes)
crop svg picture with word and extract from zip file-> it doesnt compress svg images so it stays rectangular with the white spaces above and under.
Set a seperate horizontal guideline for the top of the picture. It does the trick but one or multiple guidelines for each image gets very messy. There must be a better way, right?..
ACCEPTED SOLUTION (edit with InkShape):
Install InkShape
Open SVG
Click on picture once to select it
Go to File-> Document Properties and click 'Resize pager to drawing or selection' (this button is hidden on the first tab, click +Resize page to content to show the option);
Save
extract pathData and (viewport)width/heights from saved file.
The viewportHeight attribute defines the size of the "canvas" that the path is drawn on (i.e., it defines what the coordinates in the path data actually "mean").
The height attribute defines the intrinsic size of the drawable.
The original vector has 6.5 units (in the viewport) of white space at the top and the bottom. That means that you can look for any pathData command that uses a capital letter, and subtract 6.5 from the y coordinate. That leaves you with this:
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="13dp"
android:viewportWidth="24.0"
android:viewportHeight="13.0">
<path
android:fillColor="#FF000000"
android:pathData="M18.6,0.12c-1.44,0 -2.8,0.56 -3.77,1.53L12,4.16 10.48,5.5h0.01L7.8,7.89c-0.64,0.64 -1.49,0.99 -2.4,0.99 -1.87,0 -3.39,-1.51 -3.39,-3.38S3.53,2.12 5.4,2.12c0.91,0 1.76,0.35 2.44,1.03l1.13,1 1.51,-1.34L9.22,1.7C8.2,0.68 6.84,0.12 5.4,0.12 2.42,0.12 0,2.54 0,5.5s2.42,5.38 5.4,5.38c1.44,0 2.8,-0.56 3.77,-1.53l2.83,-2.5 0.01,0.01L13.52,5.5h-0.01l2.69,-2.39c0.64,-0.64 1.49,-0.99 2.4,-0.99 1.87,0 3.39,1.51 3.39,3.38s-1.52,3.38 -3.39,3.38c-0.9,0 -1.76,-0.35 -2.44,-1.03l-1.14,-1.01 -1.51,1.34 1.27,1.12c1.02,1.01 2.37,1.57 3.82,1.57 2.98,0 5.4,-2.41 5.4,-5.38s-2.42,-5.37 -5.4,-5.37z"/>
</vector>
Then, once the whole shape has been moved "up" by 6.5 units, you can subtract 11 (6.5 * 2) from both the viewport and the intrinsic height.
The end result is a 24x13dp shape, which should scale much better in wide views.
Update using Inkscape version 1.1:
Unfortunately, the latest version of Inkscape (1.1) no longer will import a vector drawable file directly, so the original answer is not 100% correct. That answer will probably work with other editors that can handle vector drawable files.
Here is an update to that answer that works with later versions of Inkscape to remove all padding from a vector drawable.
Convert vector drawable to scaled vector graphic (SVG):
Open Alex Lockwood's Shape Shifter site
Drag the vector drawable file from Android Studio to Shape Shifter.
Export the image as an SVG to a local file
Now that we have an SVG file, we can edit it with Inkscape:
Install Inkscape if not already installed.
Open SVG file in Inkscape.
Click on the image to select it.
Resize the image to the selection (Shift+Ctrl+R or Edit->Resize Page to Selection). You can also specify an alternate size if you desire some padding.
Save the image as an SVG file.
The image is now cropped in an SVG file. We need to convert it back to a vector drawable.
In Android Studio import the SVG file as a vector drawable. (File->New->Vector Asset) Asset Type = "Local file (SVG, PSD).
Once imported, the vector drawable no longer has any padding.
Use an image editor that can handle SVG files to crop the image. I used InkScape but there are others. Once the image is cropped, you can import it into Android Studio as an XML file.
Here's the new update on this topic:
https://code.google.com/p/android/issues/detail?id=202019
It looks like using android:scaleType="fitXY" will make it scale correctly on Lollipop.
From a Google engineer:
Hi, Let me know if scaleType='fitXY' can be a workaround for you , in
order to get the image look sharp.
The marshmallow Vs Lollipop is due to a special scaling treatment
added into marshmallow.
Also, for your comments: " Correct behavior: The vector drawable
should scale without quality loss. So if we want to use the same asset
in 3 different sizes in our application, we don't have to duplicate
vector_drawable.xml 3 times with different hardcoded sizes. "
Even though I totally agree this should be the case, in reality, the
Android platform has performance concern such that we have not reach
the ideal world yet. So it is actually recommended to use 3 different
vector_drawable.xml for better performance if you are sure you want to
draw 3 different size on the screen at the same time.
The technical detail is basically we are using a bitmap under the hook
to cache the complex path rendering, such that we can get the best
redrawing performance, on a par with redrawing a bitmap drawable.
Some of my resource images display as white color and I have no idea why.
- I'm using a drawable importer plugin to import my images in multiple densities.
- Image displays if I set it as Background resource but then I can't control it's dimensions:
used src, compatSrc attributes and nothing changes.
tried to load the image using glide and nothing changes.
xml
<ImageView
android:layout_width="match_parent"
android:layout_height="320dp"
android:scaleType="centerCrop"
android:src="#drawable/graphic_map"/>
Expmple png image Layout in xml preview vs in emulator
Example jpg Image Location
I have an ImageView which I display on screen, the quality on the edges is not smooth, this is on emulator and on real device.
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/temp_9" />
I have attached a picture to show the difference with the image on the left being from emulator (sharp edges) and the image on the right is the original PNG image (smooth edges).
I have placed image in raw instead of drawable - not working
I have moved the image across the different drawable folders - not working
I have created a generic 'drawable' folder and placed image inside - not working
I have created a 9 path image - not working
I have reduced the image size using GIMP - not working
Currently I have a set of images which has resolution of 480x640 each.
When I zoom the image using an image displayer library I got from googling (TouchImageView), the image got a bit blurry.
Is it possible to use higher resolution image so that the image will not be blurry when zoomed?
As far as I know, images will be scaled in terms of width in Android, but the height will not be scaled, right?
Here's my code for the image displayer :
<com.km.parkit.TouchImageView
android:id="#+id/overview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:contentDescription="#string/imageDesc"
android:scaleType="matrix"
android:src="#drawable/parkinglot" />
I am retrieving image from server and setting it to image view.The image size is 64 X 64 .
But I want it to suppport all size image views. If I use imageview of size 150dp X 150dp
it gets blurred out,it stretches.Is there any method so that my image maintains its quality even on bigger size imageview?I had heard to use ninepatch images in drawable but here i'm downloading it from server and image size is fixed 64 X 64 .
Plz Help!!!!
NinePatch is for stretching images, usually only for background images with a single color or a gradient in one direction. So that is not your answer.
As to showing your 64x64 image as 150x150.. no. It's just as if you'd do image enlargement in an image editor - the information is not there. Although it shouldn't be that bad.
Check this to see if any alternative fits your needs:
http://developer.android.com/reference/android/widget/ImageView.ScaleType.html
Typically used:
<ImageView
android:id="#+id/image1"
android:adjustViewBounds="true"
android:scaleType="centerInside"
android:layout_height="wrap_content"
android:layout_width="0dp"
/>
I am afraid it can't be done...Not with all image types at least. There are images called VECTOR images which retains quality at significant level of image resizes. So you should try using some vector kinda images which could be of .PNG images, etc.
Because shrinking a larger image works most of the time, but enlarging smaller images will always under distortion.