pocketcommunityclient/app/src/main/res/layout/main/layout/visitor/layout/visitor_appointment_fragment.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
    tools:context=".ui.main.ui.visitor.appointment.VisitorAppointmentFragment">


    <AutoCompleteTextView
        android:id="@+id/appointment"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:completionThreshold="1"
        android:gravity="center"
        android:hint="@string/prompt_appointment"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/button_group_layout" />

    <TextView
        android:id="@+id/tip"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:gravity="center"
        android:textSize="18sp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/appointment" />

    <EditText
        android:id="@+id/chooseDate"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:ems="10"
        android:gravity="center"
        android:hint="@string/prompt_choose_date"
        android:importantForAutofill="no"
        android:inputType="date"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/tip" />

    <LinearLayout
        android:id="@+id/choose_time_layout"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:orientation="horizontal"
        android:visibility="gone"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/chooseDate">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center"
            android:text="@string/prompt_choose_time" />

        <Spinner
            android:id="@+id/choose_time"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1" />

    </LinearLayout>

    <EditText
        android:id="@+id/notes"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:gravity="center"
        android:hint="@string/prompt_input_notes"
        android:importantForAutofill="no"
        android:inputType="text"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/choose_time_layout" />

    <LinearLayout
        android:id="@+id/button_group_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:text="@string/visitor_is_people"
            android:textSize="18sp" />

        <RadioGroup
            android:id="@+id/button_group"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="8dp"
            android:layout_weight="1"
            android:gravity="center"
            android:orientation="horizontal">

            <RadioButton
                android:id="@+id/is_outpeople"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginEnd="@dimen/size_8"
                android:checked="true"
                android:text="@string/visitor_is_outpeole" />

            <RadioButton
                android:id="@+id/not_outpeolle"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/visitor_not_outpeole" />
        </RadioGroup>
    </LinearLayout>

    <Button
        android:id="@+id/submit"
        style="@style/Button_unselect"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:enabled="false"
        android:text="@string/submit_appointment"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/notes" />

</androidx.constraintlayout.widget.ConstraintLayout>