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

Below API level 21 app versions not support for the

app:backgroundTint="@color/green"

or you can use this library for achieve more material design widgets.

https://github.com/navasmdc/MaterialDesignLibrary

happy coding...

Answer 2

I was using Material Design for my ExtendedFloatingActionButton and when using API 24 it would crash the app.

I tried updating my gradle dependencies to the latest version:

implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'com.google.android.material:material:1.3.0-alpha02'

but I had no luck with that either. My solution was adding android:theme="" even though I had set a style it would still crash so I set the theme to the same as the style and it worked perfectly.

<com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
                    android:id="@+id/btn_one"
                    android:theme="@style/"
                    style="@style/"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:contentDescription="@string/text"
                    android:text="@string/text"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="parent" />

Answer 3

You need to add

android:theme="@style/Theme.AppCompat"

in the XML_Layout file in which you are using FloatingActionButton...

Answer 4

 <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_foreground"
        android:layout_margin="16dp" />

Use this

 <com.google.android.material.floatingactionbutton.FloatingActionButton>

instead of

<android.support.design.widget.FloatingActionButton>

Answer 5

Add in

build.gradle(:app)

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

Use this in your XML

<com.google.android.material.floatingactionbutton.FloatingActionButton
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|right"
        android:layout_margin="16dp"
        android:src="@drawable/icon_right"
        app:backgroundTint="@color/green"
        android:onClick="previewphoto"
        app:layout_anchorGravity="bottom|right|end" />

Answer 6

Use

app:backgroundTint

in stead of

android:backgroundTint

Hope it will work.