AssimilateTranslate/app/src/main/res/layout/activity_main.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:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/main_bg"
    android:paddingStart="16dp"
    android:paddingTop="16dp"
    android:paddingEnd="16dp"
    tools:context=".viewui.MainActivity">


    <TextView
        android:id="@+id/tv_aaaaa"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <ImageView
        android:id="@+id/iv_main_history"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingEnd="20dp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:srcCompat="@drawable/main_history" />

    <TextView
        android:id="@+id/tv_main_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/text_main_title"
        android:textColor="@color/main_text_ff1f1724"
        android:textSize="18sp"
        android:textStyle="bold"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:layout_editor_absoluteY="108dp" />

    <ImageView
        android:id="@+id/iv_main_setting"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingStart="20dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:srcCompat="@drawable/main_setting" />


    <LinearLayout
        android:id="@+id/change_language"
        android:layout_width="match_parent"
        android:layout_height="48dp"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="23dp"
        android:elevation="2dp"
        android:orientation="horizontal"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/tv_main_title">

        <TextView
            android:id="@+id/ch_source_language"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:background="@drawable/button_r20_white_bg"
            android:drawablePadding="25dp"
            android:gravity="center"
            android:paddingStart="16dp"
            android:paddingEnd="12dp"
            android:text="@string/text_source_language"
            android:textColor="@color/main_text_ff1f1724"
            android:textSize="16sp"
            android:textStyle="bold"
            app:drawableEndCompat="@drawable/ic_down_choose" />

        <ImageView
            android:id="@+id/iv_main_exChange"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_marginStart="12dp"
            android:layout_marginEnd="12dp"
            android:background="@drawable/button_r20_white_bg"
            android:paddingStart="12dp"
            android:paddingTop="6dp"
            android:paddingEnd="12dp"
            android:paddingBottom="6dp"
            android:src="@drawable/ic_exchage" />

        <TextView
            android:id="@+id/ch_target_language"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:background="@drawable/button_r20_white_bg"
            android:drawablePadding="25dp"
            android:gravity="center"
            android:paddingStart="16dp"
            android:paddingEnd="12dp"
            android:text="@string/text_target_language"
            android:textColor="@color/main_text_ff1f1724"
            android:textSize="16sp"
            android:textStyle="bold"
            app:drawableEndCompat="@drawable/ic_down_choose" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/ll_main_enter_text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="12dp"
        android:background="@drawable/button_r20_white_bg"
        android:orientation="vertical"
        android:paddingStart="12dp"
        android:paddingTop="16dp"
        android:paddingEnd="12dp"
        android:paddingBottom="16dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/change_language">

        <EditText
            android:id="@+id/et_text"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@android:color/transparent"
            android:gravity="start|top"
            android:hint="@string/main_text_enter"
            android:maxLines="5"
            android:minHeight="140dp"
            android:selectAllOnFocus="true"
            android:textColor="@color/main_text_ff1f1724"
            android:textSize="16sp"
            android:textStyle="bold" />

        <TextView
            android:id="@+id/tv_main_limit_text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="0/1800"
            android:textColor="@color/main_text_ff0e8ce8"
            android:textSize="12sp" />

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="12dp">


            <TextView
                android:id="@+id/tv_main_paste"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentStart="true"
                android:layout_centerVertical="true"
                android:background="@drawable/button_r10_gray_bg"
                android:drawablePadding="4dp"
                android:gravity="center"
                android:paddingStart="8dp"
                android:paddingTop="4dp"
                android:paddingEnd="8dp"
                android:paddingBottom="4dp"
                android:text="@string/main_paste_text"
                app:drawableStartCompat="@drawable/main_paste" />

            <ImageView
                android:id="@+id/tv_main_voice"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentEnd="true"
                android:layout_centerVertical="true"
                android:src="@drawable/main_voice_text" />

            <TextView
                android:id="@+id/tv_main_trans"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentEnd="true"
                android:layout_centerVertical="true"
                android:background="@drawable/button_r24_blue_bg"
                android:drawablePadding="4dp"
                android:paddingStart="16dp"
                android:paddingTop="9dp"
                android:paddingEnd="16dp"
                android:paddingBottom="9dp"
                android:text="@string/main_try_text"
                android:textColor="@color/main_bg_fff9f9f9"
                android:visibility="gone"
                app:drawableEndCompat="@drawable/ic_arrow_try" />

        </RelativeLayout>

    </LinearLayout>

    <LinearLayout
        android:id="@+id/ll_main_quick"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:background="@drawable/button_r20_white_bg"
        android:orientation="vertical"
        android:padding="16dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/ll_main_enter_text">

        <LinearLayout
            android:id="@+id/ll_quick_set"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:drawablePadding="12dp"
                android:gravity="center"
                android:text="@string/main_quick_text"
                android:textSize="14sp"
                android:textStyle="bold"
                app:drawableStartCompat="@drawable/main_ic_quick" />

            <View
                android:layout_width="0dp"
                android:layout_height="1dp"
                android:layout_gravity="center"
                android:layout_weight="1" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:drawablePadding="12dp"
                android:gravity="center"
                android:paddingStart="20dp"
                android:text="@string/main_quick_set"
                android:textColor="@color/main_text_ff808080"
                android:textSize="12sp"
                app:drawableEndCompat="@drawable/ic_arrow_right" />


        </LinearLayout>

        <ImageView
            android:id="@+id/iv_quick_start"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_marginTop="19dp"
            android:src="@drawable/main_setting_quick" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="12dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/ll_main_quick">

        <TextView
            android:id="@+id/tv_main_photo_trans"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_marginEnd="8dp"
            android:layout_weight="1"
            android:background="@drawable/button_r20_white_bg"
            android:drawablePadding="12dp"
            android:gravity="center"
            android:paddingTop="16dp"
            android:paddingBottom="16dp"
            android:text="@string/main_photo_trans"
            android:textColor="@color/main_text_ff1f1724"

            android:textSize="14sp"
            android:textStyle="bold"
            app:drawableTopCompat="@drawable/main_photo" />

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_marginStart="8dp"
            android:layout_weight="1"
            android:background="@drawable/button_r20_white_bg"
            android:drawablePadding="12dp"
            android:gravity="center"
            android:paddingTop="16dp"
            android:paddingBottom="16dp"
            android:text="@string/main_dictionary"
            android:textColor="@color/main_text_ff1f1724"
            android:textSize="14sp"
            android:textStyle="bold"
            app:drawableTopCompat="@drawable/main_dic" />
    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>