Error inflating class android.support.design.widget.FloatingActionButton

Question

My app crashed because

Error inflating class android.support.design.widget.FloatingActionButton

This is my code in the XML

Answer 1

I am using:

classpath 'com.android.tools.build:gradle:3.3.2'

and

distributionUrl=https://services.gradle.org/distributions/gradle-4.10.1-all.zip

I changed my XML to:

<com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="16dp"
        android:clickable="true"
        android:focusable="true"
        app:srcCompat="@drawable/mapit"
        app:layout_anchor="@id/foundit_imageView"
        app:layout_anchorGravity="bottom|right|end" />

and everything built and ran correctly.

I hope this helps

Answer 2

Because android:backgroundTint doesn't work below android API 21, so you need to use app:backgroundTint instead.

Answer 3

use this code it will be work better ;

<android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_alignParentBottom="true"
        android:layout_margin="16dp"
        app:backgroundTint="#f9fcfc"

        android:src="@drawable/chat_float"
        tools:targetApi="lollipop" />

Answer 4

Tried your code, the problem is with the 23.4.0 library.

Upgrade to 24.+ , there's no error in that lib.

For example :

implementation 'com.android.support:appcompat-v7:24.2.1' // appcompat library
implementation 'com.android.support:design:24.2.1'

You need to change the compile version to 24 too.

compileSdkVersion 24

Answer 5

Make sure the library from which you declared the FloatingActionButton in the activity is the same as the one used for the layout markup

For example have

import com.google.android.material.floatingactionbutton.FloatingActionButton; in the activity and com.google.android.material.floatingactionbutton.FloatingActionButton as the tag for the layout

Answer 6

I had the same problem

I faced the same issue with Pre-Lolipop version and to resolve it, I just changed "android:src" to "app:srcCompat" & it worked for me.

To make compatibility with older version and if you're using a Vector graphics (as drawable assets) you should use:

app:srcCompat="@drawable/you_graphics"

instead of:

android:src="@drawable/your_graphics"