android - How can I draw this border? -


how can draw gradient border(border fade out transparent) , radial gradient background?

my code : 

drawable/bg.xml         radial gradient code here     drawable/border.xml             <item>                 <shape android:shape="rectangle">                     <solid android:color="@android:color/holo_blue_light"/>                     <corners android:topleftradius="100dp" android:toprightradius="100dp"/>                 </shape>             </item>             <item android:left="3dp" android:right="3dp" android:top="2dp">                 <shape android:shape="rectangle">                     <solid android:color="@color/white"/>                     <corners android:topleftradius="100dp" android:toprightradius="100dp"/>                 </shape>             </item>             <item android:height="5dp"  android:left="30dp" android:right="30dp">                 <shape android:shape="rectangle">                     <solid android:color="@color/colorprimary"/>                     <corners android:topleftradius="100dp" android:toprightradius="200dp"/>                     <gradient android:endcolor="@color/transparent"                         android:centercolor="@color/white"                         android:startcolor="@color/transparent"/>                 </shape>             </item>             <item>                 <shape android:shape="rectangle">                     <gradient android:endcolor="@color/white"                         android:startcolor="@android:color/transparent"                         android:angle="-90" />                 </shape>             </item>

i want result :

my code result

<?xml version="1.0" encoding="utf-8"?> <layer-list  xmlns:android="http://schemas.android.com/apk/res/android">      <item>         <shape android:shape="rectangle">             <solid android:color="@android:color/holo_blue_light"/>             <corners android:topleftradius="100dp" android:toprightradius="100dp"/>         </shape>     </item>      <item android:left="3dp" android:right="3dp" android:top="2dp">         <shape android:shape="rectangle">             <solid android:color="@color/white"/>             <corners android:topleftradius="100dp" android:toprightradius="100dp"/>         </shape>     </item>      <item  android:width="40dp" android:left="70dp" android:right="200dp">         <shape android:shape="rectangle">             <solid android:color="@color/colorprimary"/>              <gradient android:endcolor="@color/white"                 android:startcolor="@color/transparent"/>         </shape>     </item>      <item android:width="40dp" android:left="240dp" android:right="20dp">         <shape android:shape="rectangle">             <solid android:color="@color/white"/>             <gradient android:endcolor="@color/transparent"                 android:startcolor="@color/white"/>         </shape>     </item>      <item android:left="110dp" android:right="120dp">         <shape android:shape="rectangle">             <solid android:color="@color/white"/>         </shape>     </item>      <item>         <shape android:shape="rectangle">             <gradient android:endcolor="@color/white"                 android:startcolor="@color/transparent"                 android:angle="-90" />         </shape>     </item> </layer-list>

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