[ANDROID] 동적 layout 추가 삭제(LayoutInflater)

LayoutInflater을 이용하여 동적 layout 추가, 삭제를 한다.

 

 

activity_menu.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=".MenuActivity">

    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="버튼을 눌러 부분 화면을 추가하세요."
        android:textSize="20sp" />

    <Button
        android:id="@+id/button2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="추가하기" />

    <Button
        android:id="@+id/btn_delete"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Button" />

    <LinearLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

    </LinearLayout>
</LinearLayout>

 

sub1.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/textView2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="부분 화면 1"
        android:textSize="30sp" />

    <CheckBox
        android:id="@+id/checkBox"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="동의합니다." />
</LinearLayout>

 

 

MenuActivity.java

package com.example.samplelayoutinflater;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.LinearLayout;

public class MenuActivity extends AppCompatActivity {
    LinearLayout container;

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

        container = findViewById(R.id.container);

        Button button = findViewById(R.id.button2);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
				/* LayoutInflater inflater = LayoutInflater.from(MenuActivity.this);  LayoutInflate의 form 메서드를 호출 해도 가능 */
                
                inflater.inflate(R.layout.sub1, container, true);
                CheckBox checkBox = container.findViewById(R.id.checkBox);
                checkBox.setText("로딩되었습니다.");
            }
        });

        Button btnDelete = (Button) findViewById(R.id.btn_delete);
        btnDelete.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                container.removeAllViews();
            }
        });


    }
}