how to set materialButton icon to the center

Question

I am using supportLibrary = "28.0.0-beta01" version.
Here is my code in .xml file:

<android.support.design.button.MaterialButton
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:icon="@drawable/ic_my_orders"
    app:iconGravity="textStart"
    android:gravity="center"/>

To my code icon of the drawable locating left side of the button. I want to set button to the center. I want to achieve this result

---

Edit

I don't need to any custom views or hard coded things. If this is a bug (app:iconGravity), I will wait next release.

EDIT

The bug fixed in the version 28.0.0-rc01,just change the version.

Answer 1

The code snippet you have in your original question is correct. This has been identified as a bug and will be fixed in the upcoming release.

Answer 2

With the Material Components library just use the app:iconGravity="textStart" attribute:

 <com.google.android.material.button.MaterialButton
        style="@style/Widget.MaterialComponents.Button.Icon"
        app:icon="@drawable/..."
        app:iconGravity="textStart"
        ../>

If you want to cut the corners use the app:shapeAppearanceOverlay attribute:

 <com.google.android.material.button.MaterialButton
        style="@style/Widget.MaterialComponents.Button.Icon"
        app:icon="@drawable/..."
        app:iconGravity="textStart"
        app:shapeAppearanceOverlay="@style/Button.Cut"
        ../>

with:

  <style name="Button.Cut" parent="">
    <item name="cornerFamily">cut</item>
    <item name="cornerSize">4dp</item>
  </style>