How to Adjust Icon Size of Floating Action Button in Android

Android material design specifications have the default icon size of floating action button in android as 24 x 24 dp.

There are cases when you will like to add icon with a different size to Android FAB button.

You will soon realized that the icon might be too small or placed out of position.

A good way to learn how to resize floating action button in android is making use of the scaleTypeproperty.

The values of scaleTypeattribute are – center, centerCrop, centerInside, fitCenter, fitEnd, fitStart, fitXY and matrix.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical">

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/floatingActionButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:scaleType="centerCrop"
        app:srcCompat="@android:drawable/btn_dialog" />

</LinearLayout>

In the next code snippet, you will learn different ways you can use to increase the size of android floating action button in android.