Android layer-list : bitmap issue with app:srcCompat

Question

After updating to Studio 2.3 when i tried to create a layer list with a vector drawable it prompt to use app:srcCompat instead of android:src in bitmap.

can any one help me to add vector drawable to layer list ?

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android">

<item android:drawable="@color/colorWhite" />

<item>
    <bitmap
        android:gravity="center"
        app:srcCompat="@drawable/login">
    </bitmap>

</item>

</layer-list>

Already added

vectorDrawables.useSupportLibrary = true

Clodhopper

Any luck with this? – Platon

No. nothing so far – Clodhopper

ok. I'm going to try something. let me know if you come across something as well. – Platon

I'm having exact same problem. Still no joy with this? – Epitome

reported as bug issuetracker.google.com/issues/123822220 – Buschi

Answer 1

I found a solution for your problem

Modify second item to this:

<item android:gravity="center" android:drawable="@drawable/login"/>

UPDATE

this will cause crash on API < 21. There is not any better way.

Vance

Has anyone found a solution that doesn't make the app crash for API < 21? – Cacodyl

on some Android versions vector drawable looks ugly (becomes distorted) – Didier

@Didier Can you say which devices? Or which Api versions? – Vance

You can add a png for API < 21 this will lead to distorted images though, but it doesnt crash anymore, by now you might considering rasing the minSDK to 21 (targeting 85% of Android phones as of now) – Supposition

Answer 2

I managed to do it the following way:

<item
    android:gravity="center"
    android:drawable="@drawable/login" />

Hulking

error: attribute drawable (aka app.name:drawable) not found – Lyontine

Answer 3

Instead of doing :

<item>
    <bitmap
        android:gravity="center"
        app:srcCompat="@drawable/login">
    </bitmap>
</item>

You need to declare the background as follow:

<item
    android:gravity="center"
    app:srcCompat="@drawable/login"/>

Also, make sure that the element app schema is presented:

<layer-list xmlns:android="http://schemas.android.com/apk/res/android"
            xmlns:app="http://schemas.android.com/apk/res-auto">
    ....
</layer-list>

Gastrovascular

I think <item> android:gravity="center" app:srcCompat="@drawable/login" </item> is not valid, did you mean <item android:gravity="center" app:srcCompat="@drawable/login"> </item>? – Cacodyl

this solution did not work for me for whatever reason. Crashes with: <item> tag requires a 'drawable' attribute or child tag defining a drawable – Johore

What a random answer! @Gastrovascular Did you even test that yourself? – Didier

@Gastrovascular well... app:srcCompat="@drawable/login" will never work, it's only for ImageView – Didier

but we can just use android:drawable="@drawable/login" in item (it even works for vector drawables) – Didier