How to set circular progressbar inside button in android
<p>I want to make circular progress bar inside button. 
but I don't want to use library like <code>dmytrodanylyk/circular-progress-button, etc..</code></p>

<p>I think this solution is used <code>drawable</code>. </p>

<p>so, i make <code>circular_progress.xml</code>,</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
    &lt;rotate xmlns:android="http://schemas.android.com/apk/res/android"
        android:fromDegrees="0"
        android:pivotX="50%"
        android:pivotY="50%"
        android:duration="1"
        android:toDegrees="360" &gt;

        &lt;shape
            android:innerRadiusRatio="3"
            android:shape="ring"
            android:thicknessRatio="8"
            android:useLevel="false" &gt;
            &lt;size
                android:height="48dip"
                android:width="48dip" /&gt;

            &lt;gradient
                android:centerColor="#f0f0f0"
                android:centerY="0.50"
                android:endColor="#000000"
                android:startColor="#ffffff"
                android:type="sweep"
                android:useLevel="false" /&gt;
        &lt;/shape&gt;

    &lt;/rotate&gt;
</code></pre>

<p>and, </p>

<pre><code>&lt;Button
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:text="Log In"
                android:layout_below="@+id/passwordWrapper"
                android:layout_marginTop="5dp"
                android:theme="@style/AppTheme.SignButton"
                android:id="@+id/loginButton"
                android:drawableRight="@drawable/circular_progress"
                /&gt;
</code></pre>

<p><a href="https://i.stack.imgur.com/5w6dLl.png" rel="noreferrer"><img src="https://i.stack.imgur.com/5w6dLl.png" alt="enter image description here"></a></p>

<p>but, progress bar is stopped.</p>

<p>second solution is to make custom button class having progressbar. </p>

<p>but i don't know to make custom button class having progressbar.</p>