Here is the code i need to change the color of the progressbar spinner or loader
    <android.support.constraint.ConstraintLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.conceptchest.conceptchest.mainConcept">
     <WebView
      android:id="@+id/mainWebView"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      app:layout_constraintRight_toRightOf="parent"
      app:layout_constraintLeft_toLeftOf="parent"
      app:layout_constraintBottom_toTopOf="@+id/progress1"
      app:layout_constraintTop_toTopOf="parent" />
     <ProgressBar
      android:id="@+id/progress1"
      aenter code herendroid:layout_centerHorizontal="true"
      android:layout_centerVertical="true"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      app:layout_constraintRight_toRightOf="parent"
      app:layout_constraintLeft_toLeftOf="parent"
      app:layout_constraintBottom_toBottomOf="parent"
      app:layout_constraintTop_toTopOf="parent"
      />
     />
    </android.support.constraint.ConstraintLayout>
Please help as i not able to change the color I have tried adding style and its not working
 
     
     
    