'Android FAB icon always black with MaterialComponents theme

I'm creating an Android app and I'm using the AndroidX libraries and Material design theme. My app theme on styles.xml is:

<style name="AppTheme" parent="Theme.MaterialComponents.Light.DarkActionBar">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
</style>

I have the following FAB from a custom library:

<com.leinardi.android.speeddial.SpeedDialView
        android:id="@+id/work_log_fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        app:layout_behavior="@string/speeddial_scrolling_view_snackbar_behavior"
        app:sdMainFabClosedSrc="@drawable/ic_add_white_24dp"
        app:sdOverlayLayout="@id/overlay" />

And also tried the default FAB:

<com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="end|bottom"
        android:src="@drawable/ic_add_white_24dp"
        android:layout_margin="16dp" />

No mater the color of the icon (a vector drawable), the icon inside the FAB (from the library and from the default) is always black. I have narrowed down the problem to the material design theme, since using the old Theme.AppCompat.Light.DarkActionBar instead of the new Theme.MaterialComponents.Light.DarkActionBar the icon inside the FAB gets the color of the original vector drawable.

Does anyone know why this is happening and how to solve it?

Solution 1:^[1]

I solved this by using:

app:tint="@color/COLOR_OF_ICON"

and NOT:

android:tint="@color/COLOR_OF_ICON"

Reference: https://github.com/material-components/material-components-android/blob/master/docs/components/FloatingActionButton.md

Solution 2:^[2]

For MaterialComponents Theme you can define the following colors.

<style name="AppTheme" parent="Theme.MaterialComponents.Light.NoActionBar">
        <item name="colorPrimary">@color/primary</item>
        <item name="colorPrimaryDark">@color/primaryDark</item>
        <item name="colorPrimaryVariant">@color/primaryVariant</item>
        <item name="colorOnPrimary">@color/onPrimary</item>
        <item name="colorSecondary">@color/secondary</item>
        <item name="colorSecondaryVariant">@color/secondaryVariant</item>
        <item name="colorOnSecondary">@color/onSecondary</item>
        <item name="colorAccent">@color/accent</item>
        <item name="colorSurface">@color/surface</item>
        <item name="colorOnSurface">@color/onSurface</item>
        <item name="colorError">@color/error</item>
        <item name="colorOnError">@color/onError</item>
        <item name="colorButtonNormal">@color/buttonNormal</item>
        <item name="colorControlNormal">@color/controlNormal</item>
        <item name="colorControlActivated">@color/controlActivated</item>
        <item name="colorControlHighlight">@color/controlHighlight</item>
        <item name="colorBackgroundFloating">@color/backgroundFloating</item>
    </style>

colorSecondary is the responsible color for FloatingActionButton. and colorOnSecondary is the responsible color for icon color of FloatingActionButton.

In your AppTheme you have not defied the colorSecondary. So, it took the default black color from parent Theme.MaterialComponents.Light.DarkActionBar.

Reference : Android dev summit, 2018 - The Components of Material Design

Solution 3:^[3]

As said in this answer, if your icon has multiple colors or if you want to keep your icon original color(s), then assign @null as the tint:

app:tint="@null"

Solution 4:^[4]

According to the GitHub documentation page for the Material Components library's FloatingActionButton, the only attributes that affect the icon are

app:srcCompat
app:tint
app:maxImageSize

In this case, since your color is defined as a constant (#FFF), the only one that seems to make sense is app:tint. Perhaps something in your theme has set this to black?

You ought to be able to override it by setting app:tint="#FFF" on your FAB.

Solution 5:^[5]

Is Your Icon is multicolor

Add Only

app:tint="@null"

but if you only want to change color

@dimen/fab_margin -> 16dp

<com.google.android.material.floatingactionbutton.FloatingActionButton
    android:id="@+id/fab"
    style="@style/Widget.MaterialComponents.FloatingActionButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="bottom|end"
    android:layout_margin="@dimen/fab_margin"
    app:backgroundTint="@color/colorAccent"
    app:srcCompat="@drawable/ic_add"
    app:tint="@color/colorWhite" />

Style :

 <style name="AppTheme" parent="Theme.MaterialComponents.Light.NoActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
</style>

Programmatically in kotlin :

fab.setImageDrawable(ContextCompat.getDrawable(context!!, R.drawable.your_drawable))

Solution 6:^[6]

In my case, I just follow this

<com.google.android.material.floatingactionbutton.FloatingActionButton
    android:id="@+id/bottom_home"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@drawable/ic_home"
    android:scaleType="centerCrop"
    android:src="@drawable/ic_add_sign"
    app:backgroundTint="@color/app_dark_green"
    app:borderWidth="0dp"
    app:elevation="6dp"
    app:fabSize="normal"
    app:layout_anchor="@id/nav_view"
    app:tint="#FFF" />

And my result is

Solution 7:^[7]

use app:tint="@color/white"

    <com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/fab_add"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="end|bottom"
        android:layout_margin="16dp"
        app:tint="@color/white"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:srcCompat="@drawable/ic_done"/>

Solution 8:^[8]

I was looking for it and the following code worked.

android:backgroundTint="@color/primarycolor"
    android:textColor="@color/white"
    app:iconTint="@color/white"

Solution 9:^[9]

Using vector asset as icon for FAB . Here is what worked for me .

app:tint is changing vector icon color and app:backgroundTint is changing background of FAB .

<com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/idFABAdd"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentEnd="true"
        android:gravity="bottom"
        android:layout_gravity="bottom|right"
        android:layout_marginBottom="70dp"
        android:layout_alignParentBottom="true"
        android:layout_marginStart="18dp"
        android:layout_marginTop="18dp"
        android:layout_marginEnd="18dp"
        app:srcCompat="@drawable/ic_baseline_home_24"
        app:tint="@color/white"
        app:backgroundTint="@color/purple_500"
        android:contentDescription="TODO" />

Solution 10:^[10]

I'm also using Heinardi speed dial library. According to the document about customizing items, you can define a theme for the component:

<style name="Theme.FAB">
    <item name="colorPrimary">@color/Primary</item>
    <item name="colorAccent">@color/Accent</item>
    <item name="colorOnSecondary">@color/white</item>
</style>

Note that colorPrimary defines the color of extended buttons,

colorAccent the color of main button,

colorOnSecondary the color of icon.

Then you can add the theme to SpeedDialView:

<com.leinardi.android.speeddial.SpeedDialView
    android:id="@+id/speedDial"
    android:theme="@style/Theme.FAB"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="bottom|end"
    app:sdMainFabClosedSrc="@drawable/ic_add_white"
    app:sdOverlayLayout="@id/speedDialOverlay" />

Solution 11:^[11]

UPDATED

Shortly: @gab-ledesma comment did the trick: https://stackoverflow.com/a/53843325/5451349

implementation 'com.google.android.material:material:1.2.0-alpha05'

<com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
...
app:iconTint="@color/white"
app:icon="@drawable/ic_add_white"
...

Finnaly app:iconTint changed an icon color. I've found it in the source code:

https://github.com/material-components/material-components-android/blob/master/lib/java/com/google/android/material/floatingactionbutton/res/values/styles.xml#L81

Of cource, you need to check the instruction before: https://github.com/material-components/material-components-android/blob/master/docs/getting-started.md

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1
Solution 2
Solution 3
Solution 4	Ben P.
Solution 5
Solution 6	Muhaiminur Rahman
Solution 7	Raviraj
Solution 8	BDL
Solution 9	sreekanth balu
Solution 10
Solution 11

'Android FAB icon always black with MaterialComponents theme

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