попробуйте с этим
вызвать его из действия по созданию метода и также реализовать AdapterView.OnItemSelectedListener.
String[] weeks = {"Sunday", "Monday", "Tuesday", "Wednesday", "thursday","Sunday"}
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.custom_app_bar_spinner);
Spinner spinner = (Spinner) findViewById(R.id.spinnerMethodInterviews);
Spinner spinnerSecond = (Spinner) findViewById(R.id.spinnerMethodSecond);
ArrayAdapter<String> spinnerAdapter = new ArrayAdapter(this,
R.layout.custom_title, android.R.id.text1, weeks);
spinnerAdapter.setDropDownViewResource(R.layout.cutom_spinner);
spinner.setAdapter(spinnerAdapter);
spinnerSecond.setAdapter(spinnerAdapter);
spinner.setOnItemSelectedListener(this);
spinnerSecond.setOnItemSelectedListener(this);
main_Activity. xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.constraint.ConstraintLayout
android:id="@+id/view_top"
android:layout_width="0dp"
android:layout_height="50dp"
app:layout_constraintTop_toTopOf="parent"
android:background="@color/colorAccent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent">
<Spinner
android:id="@+id/spinnerMethodInterviews"
android:layout_width="wrap_content"
android:layout_height="match_parent"
app:layout_constraintStart_toStartOf="parent"
android:spinnerMode="dropdown"/>
<Spinner
android:id="@+id/spinnerMethodSecond"
android:layout_width="wrap_content"
android:layout_height="match_parent"
app:layout_constraintEnd_toEndOf="parent"
android:spinnerMode="dropdown"/>
</android.support.constraint.ConstraintLayout>
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintTop_toBottomOf="@+id/view_top"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
>
</android.support.v7.widget.RecyclerView>
</android.support.constraint.ConstraintLayout>
custom_spinner. xml
<CheckedTextView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@android:id/text1"
style="?android:attr/spinnerDropDownItemStyle"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@color/colorPrimary"
android:ellipsize="marquee"
android:singleLine="true"
android:textColor="@android:color/white" />
custom_title. xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@android:id/text1"
style="?attr/spinnerDropDownItemStyle"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:ellipsize="marquee"
android:singleLine="true"
android:textColor="@android:color/white" />