VectorDrawable: Invalid Drawable Tag Gradient

December 09, 2022 Post a Comment

I have been using the Android Asset Studio to generate vector drawables from SVG files exported from Zeplin for a while and except a few times, it works fine. But today I got this

Solution 1:

This solution is working for us in build.gradle

defaultConfig {
vectorDrawables.useSupportLibrary = true
}

and use app:srcCompat instead of android:src when setting a vector drawable with gradient to a ImageView.

Solution 2:

The property android:fillColor is only supported in OS 7.0+ ,

android:fillColor Specifies the color used to fill the path. May be a color or, for SDK 24+, a color state list or a gradient color (See GradientColor and GradientColorItem). If this property is animated, any value set by the animation will override the original value. No path fill is drawn if this property is not specified.

for older versions in directory /drawable we can place the vector asset without the gradients, for example:

<vector android:height="24dp" android:viewportHeight="651.95"
    android:viewportWidth="531.48" android:width="24dp"
    xmlns:aapt="http://schemas.android.com/aapt" xmlns:android="http://schemas.android.com/apk/res/android">
    <path android:pathData="M386.8,30.2c-48.5,0 -76.1,18 -121.1,18s-72.6,-18 -121.1,-18c-87.9,0 -144.7,83.3 -144.7,186 0,92.9 160,350.5 265.7,350.5 112.9,0 265.7,-257.6 265.7,-350.5C531.5,113.5 474.7,30.2 386.8,30.2Z">
        <!--<aapt:attr name="android:fillColor">
            <gradient android:endX="212457.73219299316"
                android:endY="440836.2612554932"
                android:startX="212457.73219299316"
                android:startY="92857.94223999024" android:type="linear">
                <item android:color="#FFFC3A11" android:offset="0.0"/>
                <item android:color="#FFDA0300" android:offset="1.0"/>
            </gradient>
        </aapt:attr>-->
    </path>
    ...
    ...

and inside /drawable-24 directory with gradients:

<vector android:height="24dp" android:viewportHeight="651.95"
    android:viewportWidth="531.48" android:width="24dp"
    xmlns:aapt="http://schemas.android.com/aapt" xmlns:android="http://schemas.android.com/apk/res/android">
    <path android:pathData="M386.8,30.2c-48.5,0 -76.1,18 -121.1,18s-72.6,-18 -121.1,-18c-87.9,0 -144.7,83.3 -144.7,186 0,92.9 160,350.5 265.7,350.5 112.9,0 265.7,-257.6 265.7,-350.5C531.5,113.5 474.7,30.2 386.8,30.2Z">
        <aapt:attr name="android:fillColor">
            <gradient android:endX="212457.73219299316"
                android:endY="440836.2612554932"
                android:startX="212457.73219299316"
                android:startY="92857.94223999024" android:type="linear">
                <item android:color="#FFFC3A11" android:offset="0.0"/>
                <item android:color="#FFDA0300" android:offset="1.0"/>
            </gradient>
        </aapt:attr>
    </path>
    ...
    ...

Solution 3:

android:fillColor with gradient only is support for API 24+ (7.0)

ref: https://developer.android.com/reference/android/graphics/drawable/VectorDrawable.html

try add in 'drawable-v24' and the same vector in 'drawable' folder without gradient

Solution 4:

The error caused by android:fillColor attribute; this because:

android:fillColor Specifies the color used to fill the path. May be a color or, for SDK 24+, a color state list or a gradient color (See GradientColor and GradientColorItem). If this property is animated, any value set by the animation will override the original value. No path fill is drawn if this property is not specified.

If you want use gradient in version older than 24 you can use a workaround:

Baca Juga

-Edit your vector (called for example as drawable/ic_vector.xml):

<vector 
xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:aapt="http://schemas.android.com/aapt"
android:width="360dp"
android:height="110dp"
android:viewportWidth="360.0"
android:viewportHeight="110.0">
<path
    android:pathData="M82,46H0v64h360V46h-81.88v-0.3h-26.21c-14.25,0 -38.69,-6.2 -46.95,-25.93C200.99,10.25 193.27,0.52 180,0.47c-13.27,-0.05 -20.04,9.24 -24.75,19.3 -8.22,17.55 -24.66,26.19 -49.34,25.93H82V46z"
    android:fillType="evenOdd">
    <!--<aapt:attr name="android:fillColor">
        <gradient 
            android:startY="0.41999998688697815" 
            android:startX="0.0" 
            android:endY="110.0" 
            android:type="linear" 
            android:endX="360.0">
            <item android:offset="0.0" android:color="#FFCB09FF" />
            <item android:offset="1.0" android:color="#FF8A06FF" />
        </gradient>
    </aapt:attr></path>-->

-Create another drawable resource where insert gradient as item:

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
    <shape android:shape="rectangle">
        <gradient 
            android:type="linear"
            android:startColor="#FFCB09FF"
            android:endColor="#FF8A06FF"
            android:angle="270">
        </gradient>
    </shape>
</item>
<item android:drawable="@drawable/ic_vector"/>

Hope I have helped you!

Solution 5:

I was able to fix this by using

app:srcCompat="@drawable/ic_vector"

instead of

android:src="@drawable/ic_vector"

This was tested on API 22 device

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