로또번호 생성기_activity_Main

<?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:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <ImageView
        android:id="@+id/iv_logo"

//id설정: android:id="@+id/명"
        android:layout_width="300dp"
        android:layout_height="100dp"
        android:layout_marginTop="30dp"

//맨 위 여벽에서 떨어지는 높이: marginTop

//크기 단위: dp
        android:scaleType="fitCenter"
        android:src="@drawable/lotto"

//소스파일 해당이미지 가져오기
        app:layout_constraintEnd_toEndOf="parent"

//오른쪽 위치 통제: constraintEnd_toEndOf
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

 

    <TextView
        android:id="@+id/tv_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginEnd="16dp"
        android:layout_marginRight="16dp"
        android:gravity="center"
        android:text="로또 번호 생성기"
        android:textColor="@android:color/holo_blue_dark"
        android:textSize="30sp"

//텍스트 단위: sp
        android:textStyle="bold"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/iv_logo" />

    <NumberPicker
        android:id="@+id/np_num"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="32dp"
        android:solidColor="#8875B1"
        android:background="@android:color/holo_orange_light"
        app:layout_constraintEnd_toStartOf="@+id/iv_left"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintHorizontal_chainStyle="packed"

//3개를 chain으로 묶어주고 packed 옵션으로
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/tv_title" />

    <ImageView
        android:id="@+id/iv_left"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:layout_marginStart="16dp"
        android:src="@drawable/ic_left"
        app:layout_constraintBottom_toBottomOf="@+id/np_num"
        app:layout_constraintEnd_toStartOf="@+id/btn_add"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toEndOf="@+id/np_num"
        app:layout_constraintTop_toTopOf="@+id/np_num" />


    <Button
        android:id="@+id/btn_add"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:text="번호 추가하기"
        app:layout_constraintBottom_toBottomOf="@+id/iv_left"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toEndOf="@+id/iv_left"
        app:layout_constraintTop_toTopOf="@+id/iv_left" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="80dp"
        android:layout_marginStart="10dp"
        android:layout_marginTop="32dp"
        android:layout_marginEnd="10dp"
        android:background="@drawable/bg"

//draw에서 만든 백그라운드를 들고옴
        android:gravity="center"

//gravity="center" 를 줘야 안에 생성되는 tv가 중앙부터 차례로 옮

        android:orientation="horizontal"

//LinearLayout은 오리엔테이션 필수
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/np_num">


        <TextView
            android:id="@+id/tv_num1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:background="@drawable/circle_blue"
            android:gravity="center"
            android:text="1"
            android:textColor="@color/white"
            android:textSize="18sp"
            android:textStyle="bold"
            android:visibility="gone"

//처음부터 숫자가 생기면 안되므로 숨겨야 함: visibility="gone"
            tools:visibility="gone" />

        <TextView
            android:id="@+id/tv_num2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:gravity="center"
            android:text="1"
            android:textColor="@color/white"
            android:textSize="18sp"
            android:textStyle="bold"
            android:visibility="gone"
            tools:visibility="gone" />

        <TextView
            android:id="@+id/tv_num3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:gravity="center"
            android:text="1"
            android:textColor="@color/white"
            android:textSize="18sp"
            android:textStyle="bold"
            android:visibility="gone"
            tools:visibility="gone" />

        <TextView
            android:id="@+id/tv_num4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:gravity="center"
            android:text="1"
            android:textColor="@color/white"
            android:textSize="18sp"
            android:textStyle="bold"
            android:visibility="gone"
            tools:visibility="gone" />

        <TextView
            android:id="@+id/tv_num5"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:gravity="center"
            android:text="1"
            android:textColor="@color/white"
            android:textSize="18sp"
            android:textStyle="bold"
            android:visibility="gone"
            tools:visibility="gone" />

        <TextView
            android:id="@+id/tv_num6"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:gravity="center"
            android:text="1"
            android:textColor="@color/white"
            android:textSize="18sp"
            android:textStyle="bold"
            android:visibility="gone"
            tools:visibility="gone" />


    </LinearLayout>

    <Button
        android:id="@+id/btn_run"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginLeft="16dp"
        android:layout_marginBottom="16dp"
        android:text="자동 생성 시작"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toStartOf="@+id/btn_clear"
        app:layout_constraintHorizontal_bias="0.5"

//비율 반반 설정
        app:layout_constraintStart_toStartOf="parent" />

    <Button
        android:id="@+id/btn_clear"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginEnd="16dp"
        android:layout_marginRight="16dp"
        android:layout_marginBottom="16dp"
        android:text="초기화"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toEndOf="@+id/btn_run" />
</androidx.constraintlayout.widget.ConstraintLayout>