Android FAB icon always black with MaterialComponents theme

Android Material Design Android Theme Floating Action-Button Androidx

Android Problem Overview

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?

Android Solutions

Solution 1 - Android

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 - Android

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 - Android

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 - Android

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 - Android

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 - Android

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 - Android

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 - Android

I was looking for it and the following code worked.

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

Solution 9 - Android

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 - Android

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 - Android

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

Content Type	Original Author	Original Content on Stackoverflow
Question	Erik	View Question on Stackoverflow
Solution 1 - Android	Gab Ledesma	View Answer on Stackoverflow
Solution 2 - Android	Ifta	View Answer on Stackoverflow
Solution 3 - Android	Mahozad	View Answer on Stackoverflow
Solution 4 - Android	Ben P.	View Answer on Stackoverflow
Solution 5 - Android	Irvin Joao	View Answer on Stackoverflow
Solution 6 - Android	Muhaiminur Rahman	View Answer on Stackoverflow
Solution 7 - Android	Raviraj	View Answer on Stackoverflow
Solution 8 - Android	iamjpsharma	View Answer on Stackoverflow
Solution 9 - Android	sreekanth balu	View Answer on Stackoverflow
Solution 10 - Android	Zhao	View Answer on Stackoverflow
Solution 11 - Android	dansamosudov	View Answer on Stackoverflow