Reputation: 181
This is my first SO question so please don't eat me alive... Here's my problem:
I've imported few icons via Android Studio 1.4's new option - New/Vector Asset
. As you know it lets you easily import and use vector drawables and creates pngs for compatibility with APIs <21. It puts the pngs in folders app/build/generated/res/pngs/debug/drawable-<density>
(mdpi, ldpi, hdpi etc). It also generates the -v21
versions of all the folders and puts the vector drawable .xmls there.
The problem started, when I wanted to add ripple effect to one of the icons. I've put the .... ripple-less version into my res/drawable
folder. It looked like this:
drawable/ic_settings.xml
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24.0"
android:viewportHeight="24.0">
<path
android:fillColor="#FFFFFF"
android:pathData="M12,15.5A3.5,3.5 ...blablabla notimportatnt"/>
</vector>
Then I wanted to add ripple to the icon in API >21. So to the folder res/drawable-v21
I added this drawable:
drawable-v21/ic_settings.xml
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="?android:colorControlHighlight">
<item>
<vector
android:width="24dp"
android:height="24dp"
android:viewportWidth="24.0"
android:viewportHeight="24.0">
<path
android:fillColor="#FFFFFF"
android:pathData="M12,15.5A3.5,3.5 0,0....blah blah blah"/>
</vector>
</item>
</ripple>
Now, when I run the app under API 21, instead of using resources from drawable-v21
it uses a drawable from app/build/generated/res/pngs/debug/drawable-xxhdpi-v21
automatically generated based on the file in res/drawable
. So no ripple.
When I tried to remove the ripple-less file from res/drawable/
, the ripple comes back in API 21, but of course the app crashes in APIs<21
Then I tried to put ripple version of the icon to the res/drawable
folder, hoping that gradle would automatically generate the pngs. Nope - <ripple>
tag prevents gradle from generating pngs and the app crashes <21.
Anyone stumbled upon this kind of problem? Any idea how to add ripple to the icon?
Have a good day!
Upvotes: 4
Views: 3473
Reputation: 181
Ok, I kinda found the solution.
In folder res/drawable
I left only the vectors that can and should be automatically converted to pngs - so only plain normal icons without ripple. Then in drawable_v21
I've put the ripple version of drawable and renamed it - ic_settings_ripple.xml
. I've created a new folder layout-v21
and duplicated my layout, but instead of ic_settings.xml
i used ic_settings_ripple.xml
.
So now under API<21 the app uses ripple-less png generated by gradle, and at API>=21 there is an alternative layout, that uses ripple version of one of the icon.
Upvotes: 1