hcp-pad/workbenches/src/main/res/layout/activity_free_train.xml

<?xml version="1.0" encoding="utf-8"?>
<layout 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"
    tools:ignore="ResourceName">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@mipmap/icon_uniform_background">

        <LinearLayout
            android:id="@+id/layoutHead"
            android:layout_width="@dimen/divider_195px"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintTop_toTopOf="parent">

            <androidx.appcompat.widget.AppCompatImageView
                android:layout_width="@dimen/divider_48px"
                android:layout_height="@dimen/divider_43px"
                android:layout_marginStart="@dimen/divider_65px"
                android:layout_marginTop="@dimen/divider_35px"
                android:background="@mipmap/bg_home" />

            <androidx.appcompat.widget.AppCompatTextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginStart="@dimen/divider_14px"
                android:layout_marginTop="@dimen/divider_38px"
                android:text="@string/home_pager"
                android:textColor="@android:color/white"
                android:textSize="@dimen/divider_28px"
                android:textStyle="bold" />
        </LinearLayout>

        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/rvTrainType"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_marginStart="@dimen/divider_37px"
            android:layout_marginTop="@dimen/divider_110px"
            android:layout_marginEnd="@dimen/divider_36px"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/layoutHead" />

        <androidx.cardview.widget.CardView
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_marginStart="@dimen/divider_38px"
            android:layout_marginTop="@dimen/divider_18px"
            android:layout_marginEnd="@dimen/divider_18px"
            android:layout_marginBottom="@dimen/divider_18px"
            app:cardBackgroundColor="@android:color/white"
            app:cardCornerRadius="@dimen/divider_38px"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toRightOf="@id/rvTrainType"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintTop_toTopOf="parent">

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent">

                <androidx.appcompat.widget.AppCompatTextView
                    android:id="@+id/tvTitle"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="@dimen/divider_31px"
                    android:text="@string/all_training"
                    android:textColor="@color/color_FF4A76FF"
                    android:textSize="@dimen/divider_42px"
                    android:textStyle="bold"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintTop_toTopOf="parent" />

                <com.scwang.smartrefresh.layout.SmartRefreshLayout
                    android:id="@+id/freeTrainSwipe"
                    android:layout_width="match_parent"
                    android:layout_height="0dp"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintTop_toBottomOf="@+id/tvTitle">

                    <androidx.recyclerview.widget.RecyclerView
                        android:id="@+id/rvTrain"
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:layout_marginStart="@dimen/divider_16px"
                        android:layout_marginTop="@dimen/divider_8px"
                        android:layout_marginBottom="@dimen/divider_8px" />

                </com.scwang.smartrefresh.layout.SmartRefreshLayout>

                <LinearLayout
                    android:id="@+id/emptyLayout"
                    android:layout_width="match_parent"
                    android:layout_height="0dp"
                    android:orientation="vertical"
                    android:visibility="gone"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintTop_toBottomOf="@+id/tvTitle"
                    tools:ignore="MissingConstraints">

                    <androidx.appcompat.widget.AppCompatImageView style="@style/empty_image_view_style" />

                    <androidx.appcompat.widget.AppCompatTextView style="@style/empty_text_view_style" />

                </LinearLayout>
            </androidx.constraintlayout.widget.ConstraintLayout>
        </androidx.cardview.widget.CardView>
    </androidx.constraintlayout.widget.ConstraintLayout>

</layout>