[안드로이드 스튜디오] 계산기 UI

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:orientation="vertical">

    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:textSize="45dp"
        android:gravity="right|bottom"
        android:text="12345678"
        android:layout_weight="1"
        />
    <TableLayout
        android:layout_width="match_parent"
        android:layout_weight="1"
        android:layout_height="match_parent"
        android:stretchColumns="0,1,2,3">
        <TableRow>
            <Button android:text="/" />
            <Button android:text="x" />
            <Button android:text="-" />
            <Button android:text="+" />
        </TableRow>
        <TableRow>
            <Button android:text="7" />
            <Button android:text="8" />
            <Button android:text="9" />
            <Button android:text="&lt;" />
        </TableRow>
        <TableRow>
            <Button android:text="4" />
            <Button android:text="5" />
            <Button android:text="7" />
            <Button android:text="AC" />
        </TableRow>
        <TableRow>
            <Button android:text="1" />
            <Button android:text="2" />
            <Button android:text="3" />
        </TableRow>
        <TableRow>
            <Button android:text="0" android:layout_span="2"/>
            <Button android:text="." />
            <Button android:text="=" />
        </TableRow>

    </TableLayout>
</LinearLayout>

package com.example.a04_39;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}