examples/android/CHIPTool/app/src/main/res/layout/wildcard_fragment.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingStart="16dp"
    android:paddingEnd="16dp"
    xmlns:app="http://schemas.android.com/apk/res-auto">

  <androidx.fragment.app.FragmentContainerView
      android:id="@+id/addressUpdateFragment"
      android:name="com.google.chip.chiptool.clusterclient.AddressUpdateFragment"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintStart_toStartOf="parent"
      app:layout_constraintTop_toTopOf="parent"/>

  <RadioGroup
      android:id="@+id/selectTypeRadioGroup"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:orientation="horizontal"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintStart_toStartOf="parent"
      app:layout_constraintTop_toBottomOf="@id/addressUpdateFragment">
    <RadioButton
        android:id="@+id/readRadioBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:checked="true"
        android:textSize="16sp"
        android:text="@string/wildcard_read_btn_text"/>
    <RadioButton
        android:id="@+id/subscribeRadioBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="16sp"
        android:text="@string/wildcard_subscribe_btn_text"/>
    <RadioButton
        android:id="@+id/writeRadioBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="16sp"
        android:text="@string/wildcard_write_btn_text"/>
    <RadioButton
        android:id="@+id/invokeRadioBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="16sp"
        android:text="@string/wildcard_invoke_btn_text"/>
  </RadioGroup>

  <androidx.constraintlayout.helper.widget.Flow
      android:id="@+id/flow"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      android:layout_marginTop="8dp"
      app:constraint_referenced_ids="endpointIdLabel,endpointIdEd,clusterIdLabel,clusterIdEd,attributeIdLabel,attributeIdEd,eventIdLabel,eventIdEd,commandIdLabel,commandIdEd,isUrgentLabel,isUrgentSp"
      app:flow_horizontalBias="0.0"
      app:flow_horizontalGap="8dp"
      app:flow_horizontalStyle="packed"
      app:flow_maxElementsWrap="2"
      app:flow_wrapMode="aligned"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintStart_toStartOf="parent"
      app:layout_constraintTop_toBottomOf="@id/selectTypeRadioGroup" />

  <TextView
      android:id="@+id/endpointIdLabel"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:padding="8dp"
      android:textSize="16sp"
      android:text="@string/endpoint_id_label" />

  <EditText
      android:id="@+id/endpointIdEd"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      android:inputType="text"
      android:hint="@string/wildcard_help_label" />

  <TextView
      android:id="@+id/clusterIdLabel"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:padding="8dp"
      android:textSize="16sp"
      android:text="@string/cluster_id_label" />

  <EditText
      android:id="@+id/clusterIdEd"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      android:inputType="number"
      android:hint="@string/wildcard_help_label"/>

  <TextView
      android:id="@+id/attributeIdLabel"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:padding="8dp"
      android:textSize="16sp"
      android:text="@string/attribute_id_label" />

  <EditText
      android:id="@+id/attributeIdEd"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      android:layout_margin="16dp"
      android:inputType="number"
      android:hint="@string/wildcard_help_label"/>

  <TextView
      android:id="@+id/eventIdLabel"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:padding="8dp"
      android:textSize="16sp"
      android:text="@string/event_id_label" />

  <EditText
      android:id="@+id/eventIdEd"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      android:layout_margin="16dp"
      android:inputType="number"
      android:hint="@string/wildcard_help_label"/>

  <TextView
      android:id="@+id/commandIdLabel"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:padding="8dp"
      android:textSize="16sp"
      android:visibility="gone"
      android:text="@string/command_id_label" />

  <EditText
      android:id="@+id/commandIdEd"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      android:layout_margin="16dp"
      android:inputType="number"
      android:visibility="gone"
      android:hint="@string/wildcard_help_label"/>

  <TextView
      android:id="@+id/isUrgentLabel"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:padding="8dp"
      android:textSize="16sp"
      android:visibility="gone"
      android:text="@string/isUrgent_label"/>

  <Spinner
      android:id="@+id/isUrgentSp"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      android:hint="@string/isUrgent_label"
      android:entries="@array/chip_select_menu"
      android:inputType="text"
      android:spinnerMode="dropdown"
      android:textSize="16sp"
      android:visibility="gone"/>

  <androidx.constraintlayout.widget.ConstraintLayout
      android:id="@+id/addLayout"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:orientation="horizontal"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintStart_toStartOf="parent"
      app:layout_constraintTop_toBottomOf="@id/flow">
    <TextView
        android:id="@+id/sendListView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"/>
    <Button
        android:id="@+id/addAttributeBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="16dp"
        android:text="@string/wildcard_add_attribute_btn_text"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toStartOf="@id/addEventBtn"
        app:layout_constraintTop_toBottomOf="@id/sendListView"
        android:textSize="16sp" />
    <Button
        android:id="@+id/addEventBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="16dp"
        android:text="@string/wildcard_add_event_btn_text"
        app:layout_constraintStart_toEndOf="@id/addAttributeBtn"
        app:layout_constraintEnd_toStartOf="@id/resetBtn"
        app:layout_constraintTop_toBottomOf="@id/sendListView"
        android:textSize="16sp" />
    <Button
        android:id="@+id/resetBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="16dp"
        android:text="@string/wildcard_reset_btn_text"
        app:layout_constraintStart_toEndOf="@id/addEventBtn"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@id/sendListView"
        android:textSize="16sp" />
  </androidx.constraintlayout.widget.ConstraintLayout>

    <Button
        android:id="@+id/sendBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginBottom="8dp"
        android:layout_gravity="center"
        android:text="@string/wildcard_send_btn_text"
        android:textSize="16sp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toStartOf="@id/shutdownSubscriptionBtn"
        app:layout_constraintTop_toBottomOf="@id/addLayout"/>

  <Button
      android:id="@+id/shutdownSubscriptionBtn"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:padding="16dp"
      android:layout_marginTop="16dp"
      android:layout_marginBottom="8dp"
      android:layout_gravity="center"
      android:text="@string/wildcard_shutdown_subscription_btn_text"
      android:textSize="16sp"
      android:visibility="gone"
      app:layout_constraintStart_toEndOf="@id/sendBtn"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintTop_toBottomOf="@id/addLayout"/>

  <ScrollView
      android:layout_width="match_parent"
      android:layout_height="0dp"
      android:fadeScrollbars="false"
      app:layout_constraintBottom_toBottomOf="parent"
      app:layout_constraintStart_toStartOf="parent"
      app:layout_constraintTop_toBottomOf="@id/sendBtn">
    <TextView
        android:id="@+id/outputTv"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="16dp"
        android:minLines="4"
        android:singleLine="false"
        android:textSize="20sp" />
  </ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>