How to create a circular outlined Material Button in Android?

Question

I am trying to create a button with an icon in the center. The top and bottom part of the circle are a little flat. Is there a way to do this without using corner radius? Here i

Answer 1

You can use the app:shapeAppearanceOverlay attribute to define the corner size. You can use the 50% value.

<com.google.android.material.button.MaterialButton
    android:layout_width="50dp"
    android:layout_height="50dp"
    style="@style/Widget.MaterialComponents.Button.OutlinedButton.Icon"
    app:icon="@drawable/ic_add_24px"
    app:iconSize="24dp"
    app:iconGravity="textStart"
    android:padding="0dp"
    app:iconPadding="0dp"
    android:insetLeft="0dp"
    android:insetTop="0dp"
    android:insetRight="0dp"
    android:insetBottom="0dp"
    app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.MyApp.Button.Circle"
    />

with:

  <style name="ShapeAppearanceOverlay.MyApp.Button.Circle" parent="">
    <item name="cornerFamily">rounded</item>
    <item name="cornerSize">50%</item>
  </style>

or with the style="@style/Widget.MaterialComponents.Button.Icon"

It requires the version 1.1.0.

Answer 2

By using cornerRadius along with inset you can get the rounded shape:

<com.google.android.material.button.MaterialButton
    style="@style/Widget.MaterialComponents.Button.OutlinedButton.Icon"
    android:layout_width="48dp"
    android:layout_height="48dp"
    app:cornerRadius="30dp"
    android:insetTop="0dp"
    android:insetBottom="0dp"
    android:insetLeft="0dp"
    android:insetRight="0dp"
    app:icon="@drawable/ic_menu"/>