Awesome

NestedCalendar

Make MaterialCalendarView can be nested scroll, and smooth switch to week or month mode.

Usage

Add the dependencies to your gradle file:

dependencies {
    implementation 'com.nanbox:NestedCalendar:1.3.0'
}

Use in your layout file:

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout
    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">

    <com.prolificinteractive.materialcalendarview.MaterialCalendarView
        android:id="@+id/calendar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_behavior="@string/calendar_behavior"
        app:mcv_showOtherDates="all" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginBottom="110dp"
        android:background="@color/color_ee"
        app:layout_behavior="@string/calendar_scrolling_behavior"
        tools:listitem="@layout/item_list" />

    <com.nanbox.nestedcalendar.view.WeekTitleView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#fafafa" />

</androidx.coordinatorlayout.widget.CoordinatorLayout>

Add listener:

calendarView.setOnDateChangedListener(new OnDateSelectedListener() {
    @Override
    public void onDateSelected(MaterialCalendarView widget,
                               CalendarDay date,
                               boolean selected) {
        Calendar calendar = date.getCalendar();
        calendarBehavior.setWeekOfMonth(calendar.get(Calendar.WEEK_OF_MONTH));
    }
});

Calendar setting:

About MaterialCalendarView, you can see more usage at:

https://github.com/prolificinteractive/material-calendarview

Thanks to the developers.