Drawing circle gradually in android -

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i want show circle being drawn in android gradually this:

enter image description here

how should start? needs done? 

 progressbar p  p=(pregressbar)findviewbyid(r.id.p);  objectanimator animation = objectanimator.ofint (p, "progress", 0, 100);     animation.setduration (3000);      animation.setinterpolator (new decelerateinterpolator ());     animation.start ();`

then in xml

  <progressbar android:id="@+id/p" style="?android:attr/progressbarstylehorizontal" android:layout_width="@dimen/progreess_circle" android:layout_height="@dimen/progreess_circle" android:layout_gravity="center" android:rotation="270" android:progress="0" android:drawingcachequality="low" android:progressdrawable="@drawable/circular" />

circular.xml

<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android"  android:innerradiusratio="2.3" android:shape="ring" android:thickness="10sp" > <solid android:color="@color/yellow_text_color" />


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