[android] How to change the spinner background in Android?

You just use this code

            <LinearLayout

            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:baselineAligned="false">

            <LinearLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.80">

                <FrameLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:layout_gravity="center_vertical|start"
                    android:paddingBottom="5dp"
                    android:paddingTop="5dp">

                    <Spinner
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"

                        android:background="@drawable/spiner_back"
                        android:visibility="visible" />

                    <ImageView
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_gravity="center_vertical|end"
                        android:src="@drawable/ic_arrow_drop_down_black_24dp" />
                </FrameLayout>


            </LinearLayout>

            <LinearLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.20">

                <Button
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:background="@color/colorred"
                    android:fontFamily="@font/raleway_extrabold"
                    android:text="GO"
                    android:textColor="@color/colorwhite" />

            </LinearLayout>
        </LinearLayout>

And This is background which i used...

<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<corners android:radius="5dp" />
<solid android:color="@color/colorwhite" />

and here we go this is view which i archive...