89

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?

Mahozad
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Erik
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14 Answers14

170

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

Gab Ledesma
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65

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

Ifta
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46

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"
Mahozad
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15

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.

Ben P.
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7

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))

Irvin Joao
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3

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

enter image description here

Muhaiminur Rahman
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3

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"/>
Raviraj
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1

I was looking for it and the following code worked.

android:backgroundTint="@color/primarycolor"
    android:textColor="@color/white"
    app:iconTint="@color/white"
BDL
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iamjpsharma
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1

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" />
0

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" />
zhezha
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0
app:backgroundTint="@color/white"
app:fabSize="mini"
app:srcCompat="@drawable/ic_"
app:tint="@null"
0

Color of icons are overrided by colorOnSecondary (see themes.xml).

To put the icon colour you want you must use:

app:tint="@colour/icon_colour"

And for the background:

app:backgroundTint="@colour/icon_colour"

You can change these colours automatically by the theme using https://stackoverflow.com/a/24043959/1200914

Learning from masters
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0

Just want to add my 2 cents. There are a few options how to fix your color issue for Material Components. The majority of them are already covered in the answers.

However, there's another and, probably, more general approach in this case. You can set a default "floatingActionButtonStyle" to your theme which will be used for all FloatingActionButtons.

<style name="Theme.Design" parent="Theme.MaterialComponents.Light.NoActionBar">
    <item name="floatingActionButtonStyle">@style/Theme.Design.FloatingActionButton</item>
</style>

<style name="Theme.Design.FloatingActionButton" parent="Widget.MaterialComponents.FloatingActionButton">
    <item name="tint">@null</item>
</style>

More details about styling of FloatingActionButtons is available there Theming Fabs

comrade
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-2

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

dansamosudov
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