Android changing Floating Action Button color

问题

Been trying for hours to change Material\'s Floating Action Button color, but without success.

<android.support.design.widget.FloatingActionButton
    android:id=\"@+id/profile_edit_fab\"
    android:layout_width=\"wrap_content\"
    android:layout_height=\"wrap_content\"
    android:layout_gravity=\"end|bottom\"
    android:layout_margin=\"16dp\"
    android:clickable=\"true\"
    android:src=\"@drawable/ic_mode_edit_white_24dp\" />

I have tried to add

android:background=\"@color/mycolor\"

or via code

FloatingActionButton fab = (FloatingActionButton) rootView.findViewById(R.id.profile_edit_fab);
fab.setBackgroundColor(Color.parseColor(\"#mycolor\"));

fab.setBackgroundDrawable(new ColorDrawable(Color.parseColor(\"#mycolor\")));

But none of the above worked. I have also tried the solutions in the \"duplicate question\", but none of them works, button remained green and also became a square.

I\'d like a detailed answer, thanks.

P.S. It would be also nice to know how to add ripple effect, couldn\'t understand that either.

回答1:

As described in the documentation, by default it takes the color set in styles.xml attribute colorAccent.

The background color of this view defaults to the your theme's colorAccent. If you wish to change this at runtime then you can do so via setBackgroundTintList(ColorStateList).

If you wish to change the color

in XML with attribute app:backgroundTint

<android.support.design.widget.FloatingActionButton
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/ic_add"
    app:backgroundTint="@color/orange"
    app:borderWidth="0dp"
    app:elevation="6dp"
    app:fabSize="normal" >

in code with .setBackgroundTintList (answer below by ywwynm)

As @Dantalian mentioned in the comments, if you wish to change the icon color for Design Support Library up to v22 (inclusive), you can use

android:tint="@color/white"

For Design Support Library since v23 for you can use:

app:tint="@color/white"

Also with androidX libraries you need to set a 0dp border in your xml layout:

<com.google.android.material.floatingactionbutton.FloatingActionButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/ic_add"
    app:backgroundTint="@color/orange"
    app:borderWidth="0dp"
    app:elevation="6dp"
    app:fabSize="normal"
    app:borderWidth="0dp" />

回答2:

Vijet Badigannavar's answer is correct but using ColorStateList is usually complicated and he didn't tell us how to do it. Since we often focus on changing View's color in normal and pressed state, I'm going to add more details:

If you want to change FAB's color in normal state, you can just write

mFab.setBackgroundTintList(ColorStateList.valueOf(your color in int));

If you want to change FAB's color in pressed state, thanks for Design Support Library 22.2.1, you can just write
```
mFab.setRippleColor(your color in int);
```
By setting this attribute, when you long-pressed the FAB, a ripple with your color will appear at your touch point and reveal into whole surface of FAB. Please notice that it won't change FAB's color in normal state. Below API 21(Lollipop), there is no ripple effect but FAB's color will still change when you're pressing it.

Finally, if you want to implement more complex effect for states, then you should dig deeply into ColorStateList, here is a SO question discussing it: How do I create ColorStateList programmatically?.

UPDATE: Thanks for @Kaitlyn's comment. To remove stroke of FAB using backgroundTint as its color, you can set app:borderWidth="0dp" in your xml.

回答3:

As Vasil Valchev noted in a comment it is simpler than it looks, but there is a subtle difference that I wasn't noticing in my XML.

<android.support.design.widget.FloatingActionButton
    android:id="@+id/profile_edit_fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="end|bottom"
    android:layout_margin="16dp"
    android:clickable="true"
    android:src="@drawable/ic_mode_edit_white_24dp"
    app:backgroundTint="@android:color/white"/>

Notice it is:

app:backgroundTint="@android:color/white"

and not

android:backgroundTint="@android:color/white"

回答4:

if you try to change color of FAB by using app, there some problem. frame of button have different color, so what you must to do:

app:backgroundTint="@android:color/transparent"

and in code set the color:

actionButton.setBackgroundTintList(ColorStateList.valueOf(getResources().getColor(R.color.white)));

回答5:

just use,

app:backgroundTint="@color/colorPrimary"

dont use,

android:backgroundTint="@color/colorPrimary"

回答6:

The FAB is colored based on your colorAccent.

<style name="AppTheme" parent="Base.Theme.AppCompat.Light">
    <item name="colorAccent">@color/accent</item>
</style>

回答7:

mFab.setBackgroundTintList(ColorStateList.valueOf(ContextCompat.getColor(mContext,R.color.mColor)));

回答8:

Other solutions may work. This is the 10 pound gorilla approach that has the advantage of being broadly applicable in this and similar cases:

Styles.xml:

<style name="AppTheme.FloatingAccentButtonOverlay" >
    <item name="colorAccent">@color/colorFloatingActionBarAccent</item>
</style>

your layout xml:

<android.support.design.widget.FloatingActionButton
       android:theme="AppTheme.FloatingAccentButtonOverlay"
       ...
 </android.support.design.widget.FloatingActionButton>

回答9:

The document suggests that it takes the @color/accent by default. But we can override it on code by using

fab.setBackgroundTintList(ColorStateList)

Also remember,

The minimum API version to use this library is 15 so you need to update it! if you dont want to do it then you need to define a custom drawable and decorate it!

回答10:

Thanks to autocomplete. I got lucky after a few hit and trials:

    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    card_view:backgroundTint="@color/whicheverColorYouLike"

-- or -- (both are basically the same thing)

    xmlns:app="http://schemas.android.com/apk/res-auto"
    app:backgroundTint="@color/whicheverColorYouLike"

This worked for me on API Version 17 with design library 23.1.0.

回答11:

I got the same problem and its all snatching my hair. Thanks for this https://stackoverflow.com/a/35697105/5228412

What we can do..

 favourite_fab.setImageDrawable(ContextCompat.getDrawable(getBaseContext(), R.drawable.favourite_selected));

it works fine for me and wish for others who'll reach here.

回答12:

 <android.support.design.widget.FloatingActionButton
    android:id="@+id/fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="bottom|end"
    app:elevation="6dp"
    app:backgroundTint="@color/colorAccent"
    app:pressedTranslationZ="12dp"
    android:layout_margin="@dimen/fab_margin"
    android:src="@drawable/add"/>

Note that you add colors in res/values/color.xml and include the attribute in your fab

   app:backgroundTint="@color/addedColor"

回答13:

Changing Floating action button background color by using below line

app:backgroundTint="@color/blue"

Changing Floating action button icon color

android:tint="@color/white"

回答14:

When using Data Binding you can do something like this:

android:backgroundTint="@{item.selected ? @color/selected : @color/unselected}"

I have made a very simple example

回答15:

New theme attribute mapping for Floating Action Button in material 1.1.0

In your app theme:

Set colorSecondary to set a color for background of FAB (maps to backgroundTint)
Set colorOnSecondary to set a color for icon/text and ripple color of FAB (maps to tint and rippleColor)

<style name="AppTheme" parent="Theme.MaterialComponents.Light.NoActionBar">
    <!-- ...whatever else you declare in your app theme.. -->
    <!-- Set colorSecondary to change background of FAB (backgroundTint) -->
    <item name="colorSecondary">@color/colorSecondary</item>
    <!-- Customize colorSecondary to change icon/text of FAB (maps to tint and rippleColor) -->
    <item name="colorOnSecondary">@android:color/white</item>
</style>

回答16:

i did it like this android:background="@color/colorAccent" i just go to folder res then click on folder values and then on colors.xml in colors.xml I just change the color of colorAccent and call it in android:background and its done

回答17:

The point we are missing is that before you set the color on the button, it's important to work on the value you want for this color. So you can go to values > color. You will find the default ones, but you can also create colors by copping and pasting them, changing the colors and names. Then... when you go to change the color of the floating button (in activity_main), you can choose the one you have created

Exemple - code on values > colors with default colors + 3 more colors I've created:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorPrimary">#3F51B5</color>
    <color name="colorPrimaryDark">#303F9F</color>
    <color name="colorAccent">#FF4081</color>

    <color name="corBotaoFoto">#f52411</color>
    <color name="corPar">#8e8f93</color>
    <color name="corImpar">#494848</color>

</resources>

Now my Floating Action Button with the color I've created and named "corPar":

<android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="@dimen/fab_margin"
        android:src="@android:drawable/ic_input_add"
        android:tint="#ffffff"
        app:backgroundTint="@color/corPar"/>

It worked for me. Good Luck!

回答18:

With the Material Theme and the material components FloatingActionButton by default it takes the color set in styles.xml attribute colorSecondary.

You can use the app:backgroundTint attribute in xml:

<com.google.android.material.floatingactionbutton.FloatingActionButton
       ...
       app:backgroundTint=".."
       app:srcCompat="@drawable/ic_plus_24"/>

You can use fab.setBackgroundTintList();
You can customize your style using the <item name="backgroundTint"> attribute

  <!--<item name="floatingActionButtonStyle">@style/Widget.MaterialComponents.FloatingActionButton</item> -->
  <style name="MyFloatingActionButton" parent="@style/Widget.MaterialComponents.FloatingActionButton">
    <item name="backgroundTint">#00f</item>
    <!-- color used by the icon -->
    <item name="tint">@color/...</item>
  </style>

starting from version 1.1.0 of material components you can use the new materialThemeOverlay attribute to override the default colors only for some components:

  <style name="MyFloatingActionButton" parent="@style/Widget.MaterialComponents.FloatingActionButton">
    <item name="materialThemeOverlay">@style/MyFabOverlay</item>
  </style>

  <style name="MyFabOverlay">
    <item name="colorSecondary">@color/custom2</item>
    <!-- color used by the icon -->
    <item name="colorOnSecondary">@color/...</item>
  </style>

回答19:

add colors in color.xml file and then add this line of code... floatingActionButton.setBackgroundTintList(ColorStateList.valueOf(getResources().getColor(R.color.fab2_color)));

回答20:

You can use this code in case you want to change the color programmatically

floating.setBackgroundTintList(getResources().getColorStateList(R.color.vermelho));

回答21:

use

app:backgroundTint="@color/orange" in


<com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/id_share_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/share"
        app:backgroundTint="@color/orange"
        app:fabSize="mini"
        app:layout_anchorGravity="end|bottom|center" />



</androidx.coordinatorlayout.widget.CoordinatorLayout>

来源：https://stackoverflow.com/questions/30969455/android-changing-floating-action-button-color

标签

java

android

android-5.0-lollipop

floating-action-button