[Android Studio] Chapter 5 직접 풀어보기

[직접 풀어보기]

 

5-1

XML

<?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"
    tools:context=".MainActivity">

    <Button
        android:layout_width="110dp"
        android:layout_height="100dp"
        android:layout_gravity="center"
        android:text="버튼 1"
        android:gravity="right|top"
        />

    <Button
        android:layout_width="110dp"
        android:layout_height="100dp"
        android:layout_gravity="left"
        android:text="버튼 2"
        android:gravity="left|center"
        />

    <Button
        android:layout_width="110dp"
        android:layout_height="100dp"
        android:layout_gravity="right"
        android:text="버튼 3"
        android:gravity="right|bottom"
        />

</LinearLayout>

 

 

5-2

XML

<?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"
    tools:context=".MainActivity">


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="horizontal">

        <!--빨강-->
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:background="#ff2f2d">
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:orientation="vertical">

            <!--노랑-->
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:background="#ffc92b">
            </LinearLayout>

            <!--검정-->
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:background="#000000">
            </LinearLayout>

        </LinearLayout>

    </LinearLayout>

<!--파랑-->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="vertical"
        android:background="#0067a3">
    </LinearLayout>

</LinearLayout>

 

5-3

Java

package com.cookandroid.project5_1;

import androidx.appcompat.app.AppCompatActivity;

import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

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

        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);

        LinearLayout baseLayout = new LinearLayout(this);
        baseLayout.setOrientation(LinearLayout.VERTICAL);
        setContentView(baseLayout, params);

        EditText et = new EditText(this);
        baseLayout.addView(et);

        Button btn = new Button(this);
        btn.setText("버튼입니다");
        btn.setBackgroundColor(Color.YELLOW);
        baseLayout.addView(btn);

        TextView tv = new TextView(this);
        baseLayout.addView(tv);

        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View arg0) {
                tv.setText(et.getText().toString());
            }
        });
    }
}

 

5-4

XML(LinearLayout)

<?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"
    tools:context=".MainActivity"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:paddingRight="5dp"
        android:paddingLeft="5dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="전화번호"
            />

        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="000-0000-0000" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="right"
        android:orientation="horizontal">

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginRight="3dp"
            android:text="입력"/>

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="취소"/>

    </LinearLayout>



</LinearLayout>

 

XML(RelativeLayout)

<?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"
    tools:context=".MainActivity"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:paddingRight="5dp"
        android:paddingLeft="5dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="전화번호"
            />

        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="000-0000-0000" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="right"
        android:orientation="horizontal">

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginRight="3dp"
            android:text="입력"/>

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="취소"/>

    </LinearLayout>



</LinearLayout>

 

5-5

XML

<?xml version="1.0" encoding="utf-8"?>
<GridLayout 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:columnCount="5"
    android:rowCount="9"
    android:shrinkColumn="*"
    tools:context=".MainActivity">


    <EditText
        android:layout_column="0"
        android:layout_row="0"
        android:layout_columnSpan="5"
        android:layout_gravity="fill_horizontal"
        android:id="@+id/Edit1"
        android:layout_span="5"
        android:hint="숫자 1 입력" />

    <EditText
        android:layout_column="0"
        android:layout_row="1"
        android:layout_columnSpan="5"
        android:layout_gravity="fill_horizontal"
        android:id="@+id/Edit2"
        android:layout_span="5"
        android:hint="숫자 2 입력" />

    <Button
        android:layout_column="0"
        android:layout_row="2"
        android:id="@+id/BtnNum0"
        android:text="0" />
    <Button
        android:layout_column="1"
        android:layout_row="2"
        android:id="@+id/BtnNum1"
        android:text="1" />
    <Button
        android:layout_column="2"
        android:layout_row="2"
        android:id="@+id/BtnNum2"
        android:text="2" />
    <Button
        android:layout_column="3"
        android:layout_row="2"
        android:id="@+id/BtnNum3"
        android:text="3" />
    <Button
        android:layout_column="4"
        android:layout_row="2"
        android:id="@+id/BtnNum4"
        android:text="4" />

    <Button
        android:layout_column="0"
        android:layout_row="3"
        android:id="@+id/BtnNum5"
        android:text="5" />
    <Button
        android:layout_column="1"
        android:layout_row="3"
        android:id="@+id/BtnNum6"
        android:text="6" />
    <Button
        android:layout_column="2"
        android:layout_row="3"
        android:id="@+id/BtnNum7"
        android:text="7" />
    <Button
        android:layout_column="3"
        android:layout_row="3"
        android:id="@+id/BtnNum8"
        android:text="8" />
    <Button
        android:layout_column="4"
        android:layout_row="3"
        android:id="@+id/BtnNum9"
        android:text="9" />

    <Button
        android:layout_column="0"
        android:layout_row="4"
        android:layout_columnSpan="5"
        android:layout_gravity="fill_horizontal"
        android:id="@+id/BtnAdd"
        android:layout_margin="5dp"
        android:text="더하기"/>

    <Button
        android:layout_column="0"
        android:layout_row="5"
        android:layout_columnSpan="5"
        android:layout_gravity="fill_horizontal"
        android:id="@+id/BtnSub"
        android:layout_margin="5dp"
        android:text="빼기"/>

    <Button
        android:layout_column="0"
        android:layout_row="6"
        android:layout_columnSpan="5"
        android:layout_gravity="fill_horizontal"
        android:id="@+id/BtnMul"
        android:layout_margin="5dp"
        android:text="곱하기"/>

    <Button
        android:layout_column="0"
        android:layout_row="7"
        android:layout_columnSpan="5"
        android:layout_gravity="fill_horizontal"
        android:id="@+id/BtnDiv"
        android:layout_margin="5dp"
        android:text="나누기"/>

    <TextView
        android:layout_column="0"
        android:layout_row="8"
        android:layout_columnSpan="5"
        android:layout_gravity="fill_horizontal"
        android:id="@+id/TextResult"
        android:layout_margin="5dp"
        android:text="계산 결과 : "
        android:textColor="#FF0000"
        android:textSize="20dp"/>

</GridLayout>

끝부분이 다 잘려서 나오는데 TableLayout같은 경우에는 shrinkColumn="*" 하나 추가시키면 딱따라딱 나오는데 이건 그런 방법은 없고 버튼 하나하나 크기를 설정해줘야 한다고 합니다... 오늘 시간이 너무 없어서 넘어가는데 미래의 나야 이것 좀 수정해서 다시 올려주라,,, 오늘 할 일이 넘모 많다,,,