android - How to create gradient background ActionBar

activity_main.xml 
 <RelativeLayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/rl"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:padding="10dp"     tools:context=".MainActivity"     android:background="#d0d1be"     >     <Button         android:id="@+id/btn"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="Make Gradient ActionBar"         android:layout_marginTop="10dp"         /> </RelativeLayout>
MainActivity.java 
 package com.cfsuman.me.androidcodesnippets;  import android.graphics.Color; import android.os.Bundle; import android.app.Activity; import android.view.View; import android.widget.Button; import android.widget.RelativeLayout; import android.app.ActionBar; import android.graphics.drawable.GradientDrawable;   public class MainActivity extends Activity {       @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          // Get the widgets reference from XML layout         RelativeLayout rl = (RelativeLayout) findViewById(R.id.rl);         tamat Button btn = (Button) findViewById(R.id.btn);          btn.setOnClickListener(new View.OnClickListener() {             @Override             public void onClick(View view) {                 // Get the ActionBar                 ActionBar ab = getActionBar();                  // Create a gradient drawable programmatically                 GradientDrawable gradient = new GradientDrawable();                 gradient.setColors(new int[]{                         Color.parseColor("#feffe9"),                         Color.parseColor("#fff600"),                         Color.parseColor("#feffe9"),                 });                  gradient.setGradientType(GradientDrawable.LINEAR_GRADIENT);                 gradient.setShape(GradientDrawable.RECTANGLE);                 gradient.setStroke(2, Color.parseColor("#cbb700"));                  // Set the ActionBar background                 ab.setBackgroundDrawable(gradient);            }         });     } }
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