TiebaLite/app/src/main/res/layout/activity_reply.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/activity_reply_root"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/transparent"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context=".activities.ReplyActivity">

    <FrameLayout
        android:id="@+id/webview_container"
        android:layout_width="0dp"
        android:layout_height="0dp" />

    <com.huanchengfly.tieba.post.widgets.theme.TintConstraintLayout
        android:id="@+id/activity_reply_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom"
        android:background="@drawable/bg_round"
        app:backgroundTint="@color/default_color_background">

        <com.google.android.material.appbar.AppBarLayout
            android:id="@+id/appbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/transparent"
            android:stateListAnimator="@animator/appbar_elevation"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent">

            <com.huanchengfly.tieba.post.widgets.theme.TintToolbar
                app:popupTheme="?attr/actionOverflowMenuStyle"
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:toolbarBackgroundTint="@color/transparent"
                app:itemTint="@color/default_color_text"
                app:secondaryItemTint="@color/default_color_text_secondary"
                app:activeItemTint="@color/default_color_primary"
                app:title="@string/title_reply" />
        </com.google.android.material.appbar.AppBarLayout>

        <com.huanchengfly.tieba.post.widgets.edittext.widget.UndoableEditText
            android:textSize="14sp"
            android:id="@+id/activity_reply_edit_text"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/transparent"
            android:importantForAutofill="no"
            android:gravity="top|start"
            android:hint="@string/tip_reply"
            android:inputType="textMultiLine|textImeMultiLine"
            android:lines="5"
            android:padding="12dp"
            app:layout_constraintBottom_toTopOf="@+id/activity_reply_btn_bar"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/appbar"
            tools:ignore="UnusedAttribute">
            <requestFocus />
        </com.huanchengfly.tieba.post.widgets.edittext.widget.UndoableEditText>

        <LinearLayout
            android:id="@+id/activity_reply_btn_bar"
            style="@style/Widget.AppCompat.ButtonBar"
            android:layout_width="match_parent"
            android:layout_height="48dp"
            android:orientation="horizontal"
            android:padding="8dp"
            android:weightSum="8"
            app:layout_constraintBottom_toTopOf="@+id/activity_reply_panel_root"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/activity_reply_edit_text"
            app:layout_constraintVertical_bias="1.0"
            app:layout_constraintVertical_chainStyle="packed">

            <com.huanchengfly.tieba.post.widgets.theme.TintImageView
                app:tintList="@drawable/text_color_selector"
                android:background="?attr/selectableItemBackground"
                android:id="@+id/activity_reply_edit_emotion"
                style="@style/Widget.MaterialComponents.Button.OutlinedButton.Icon"
                android:layout_width="0dp"
                android:layout_weight="1"
                android:layout_height="match_parent"
                android:padding="4dp"
                android:src="@drawable/ic_insert_emoticon" />

            <com.huanchengfly.tieba.post.widgets.theme.TintImageView
                app:tintList="@drawable/text_color_selector"
                android:background="?attr/selectableItemBackground"
                android:id="@+id/activity_reply_edit_insert_photo"
                style="@style/Widget.MaterialComponents.Button.OutlinedButton.Icon"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:padding="4dp"
                android:src="@drawable/ic_outline_insert_photo" />

            <View
                android:layout_weight="3"
                android:layout_width="0dp"
                android:layout_height="match_parent" />

            <com.huanchengfly.tieba.post.widgets.theme.TintImageView
                app:tintList="@drawable/text_color_selector"
                android:background="?attr/selectableItemBackground"
                android:id="@+id/activity_reply_edit_undo"
                style="@style/Widget.MaterialComponents.Button.OutlinedButton.Icon"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:padding="4dp"
                android:clickable="false"
                android:src="@drawable/ic_outline_undo" />

            <com.huanchengfly.tieba.post.widgets.theme.TintImageView
                app:tintList="@drawable/text_color_selector"
                android:background="?attr/selectableItemBackground"
                android:id="@+id/activity_reply_edit_redo"
                style="@style/Widget.MaterialComponents.Button.OutlinedButton.Icon"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:padding="4dp"
                android:clickable="false"
                android:src="@drawable/ic_outline_redo" />

            <com.huanchengfly.tieba.post.widgets.theme.TintImageView
                app:tintList="@drawable/text_color_selector"
                android:background="?attr/selectableItemBackground"
                android:id="@+id/activity_reply_edit_clear"
                style="@style/Widget.MaterialComponents.Button.OutlinedButton.Icon"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:padding="4dp"
                android:clickable="false"
                android:src="@drawable/ic_outline_delete_forever" />

        </LinearLayout>

        <cn.dreamtobe.kpswitch.widget.KPSwitchFSPanelFrameLayout
            android:id="@+id/activity_reply_panel_root"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:visibility="gone"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/activity_reply_btn_bar"
            app:layout_constraintVertical_bias="1.0">

            <RelativeLayout
                android:id="@+id/activity_reply_emotion"
                android:layout_width="match_parent"
                android:layout_height="match_parent">

                <androidx.viewpager.widget.ViewPager
                    android:layout_alignParentTop="true"
                    android:id="@+id/activity_reply_emotion_view_pager"
                    android:layout_width="match_parent"
                    android:layout_above="@id/activity_reply_emotion_tab"
                    android:layout_height="match_parent" />

                <com.huanchengfly.tieba.post.widgets.theme.TintTabLayout
                    style="@style/Widget.TabLayout"
                    android:layout_alignParentBottom="true"
                    android:id="@+id/activity_reply_emotion_tab"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content" />

            </RelativeLayout>

            <FrameLayout
                android:id="@+id/activity_reply_insert_photo"
                android:layout_width="match_parent"
                android:layout_height="match_parent">

                <androidx.recyclerview.widget.RecyclerView
                    android:id="@+id/activity_reply_insert_photo_view"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent" />
            </FrameLayout>
        </cn.dreamtobe.kpswitch.widget.KPSwitchFSPanelFrameLayout>
    </com.huanchengfly.tieba.post.widgets.theme.TintConstraintLayout>
</FrameLayout>