Jaybon 의 지식창고

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    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">


    <Button
        android:id="@+id/btn1"
        android:layout_alignParentTop="true"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Top Menu" />

    <Button
        android:id="@+id/btn2"
        android:layout_alignParentBottom="true"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Bottom Menu" />

    

</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    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">


    <Button
        android:id="@+id/btn1"
        android:layout_alignParentTop="true"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Top Menu1" />

    <Button
        android:id="@+id/btn4"
        android:layout_toRightOf="@id/btn1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Top Menu2" />

    <Button
        android:id="@+id/btn3"
        android:layout_below="@id/btn1"
        android:layout_above="@id/btn2"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="Bottom Menu" />

    <Button
        android:id="@+id/btn2"
        android:layout_alignParentBottom="true"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Bottom Menu" />


</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    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">


    <RelativeLayout
        android:id="@+id/top"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">

        <Button
            android:id="@+id/btn1"
            android:layout_alignParentTop="true"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Top Menu1" />

        <Button
            android:id="@+id/btn4"
            android:layout_marginLeft="10dp"
            android:layout_marginTop="20dp"
            android:layout_toRightOf="@id/btn1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Top Menu2" />

    </RelativeLayout>

    <Button
        android:id="@+id/btn3"
        android:layout_below="@id/top"
        android:layout_above="@id/btn2"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="Bottom Menu" />

    <Button
        android:id="@+id/btn2"
        android:layout_alignParentBottom="true"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Bottom Menu" />


</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:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">


    <Button
        android:id="@+id/button"
        android:layout_weight="1"
        android:gravity="left"
        android:layout_width="100dp"
        android:layout_height="0dp"
        android:text="b1" />

    <Button
        android:id="@+id/button2"
        android:layout_weight="1"
        android:gravity="right"
        android:layout_gravity="right"
        android:layout_width="100dp"
        android:layout_height="0dp"
        android:text="b2" />

    <Button
        android:id="@+id/button3"
        android:layout_weight="1"
        android:layout_gravity="center"
        android:layout_width="100dp"
        android:layout_height="0dp"
        android:text="b3" />


</LinearLayout>

<TextView
            android:id="@+id/textView"
            android:textSize="25sp"
            android:textStyle="bold"
            android:gravity="center"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:text="TimeLine" />

<?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="80dp"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/textView"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:text="TimeLine"
            android:textSize="25sp"
            android:textStyle="bold" />

        <TextView
            android:id="@+id/textView2"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:text="Untitled"
            android:textSize="25sp"
            android:textStyle="bold" />

    </LinearLayout>

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

        <ImageView
            android:id="@+id/imageView2"
            android:layout_width="match_parent"
            android:layout_height="400dp"
            android:scaleType="centerCrop"
            app:srcCompat="@drawable/img1" />

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="50dp">


            <ImageView
                android:id="@+id/imageView3"
                android:layout_marginLeft="10dp"
                android:layout_width="30dp"
                android:layout_height="match_parent"
                android:layout_alignParentLeft="true"
                app:srcCompat="@drawable/ic_favorite" />

            <TextView
                android:id="@+id/textView3"
                android:gravity="center"
                android:layout_marginLeft="10dp"
                android:layout_toRightOf="@id/imageView3"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:text="TextView" />

            <ImageView
                android:id="@+id/imageView4"
                android:layout_width="35dp"
                android:layout_marginRight="10dp"
                android:layout_height="match_parent"
                android:layout_alignParentRight="true"
                app:srcCompat="@drawable/ic_more" />
        </RelativeLayout>

    </LinearLayout>

</LinearLayout>

<RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="60dp">

            <TextView
                android:id="@+id/tv_username"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="아이디"
                android:textStyle="bold"
                android:textSize="25sp">

            </TextView>

            <TextView
                android:id="@+id/tv_comment"
                android:layout_marginLeft="10dp"
                android:layout_toRightOf="@id/tv_username"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="내용"
                android:textSize="25sp">

            </TextView>

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


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="80dp"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/textView"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:text="TimeLine"
            android:textSize="25sp"
            android:textStyle="bold" />

        <TextView
            android:id="@+id/textView2"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:text="Untitled"
            android:textSize="25sp"
            android:textStyle="bold" />

    </LinearLayout>

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent">

<!--        스크롤뷰는 레이아웃을 하나 밖에 못둔다 레이아웃으로 묶기-->

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

            <include layout="@layout/layout_content" />
            <include layout="@layout/layout_content" />
            <include layout="@layout/layout_content" />

        </LinearLayout>


    </ScrollView>

</LinearLayout>

package com.jaybon.lifecycleex02;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    private static final String TAG = "Main_Activity";

    //메인 액티비티의 전역변수, 걸어두고 사용하는 것이 편리하다
    //메인 액티비티의 모든 것이 담겨있다
    private Context mContext = MainActivity.this;

    private Button btnNum, btnEmail;
    private TextView tvNum, tvEmail;

    
    // 콜백함수
    // 어떤화면이 꺼지면 데이터값을 가져오는 것?
    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        Log.d(TAG, "onActivityResult: 콜백받음");
    }

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

        tvNum = findViewById(R.id.tv_num);
        tvEmail = findViewById(R.id.tv_email);
        btnEmail = findViewById(R.id.btn_email);
        btnNum = findViewById(R.id.btn_num);

        // 리스너
        btnNum.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // 트럭 생성 getBaseContext() 또는 MainActivity.this 또는 전역변수로 등록하여 사용
                // 출발지 MainActivity.this, 목적지 Sub2Activity.class
                Intent intent = new Intent(mContext, SubActivity.class);

                // startActivity(intent); 이동만 할때 사용

                // 이동 및 응답을 받을 수 있는 것
                // 나를 띄운 페이지 확인 requestCode (enum 등을 사용하자)
                startActivityForResult(intent, 1);

            }
        });
        
        

    }
}

package com.jaybon.lifecycleex02;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class SubActivity extends AppCompatActivity {

    private Button btnSubNum;


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

        btnSubNum = findViewById(R.id.btn_sub_num); // 버튼이름을 같게 해도 충돌안남
        btnSubNum.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
    }
}

package com.jaybon.lifecycleex02;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

public class Sub2Activity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sub2);
    }
}