[안드로이드] 탭 레이아웃과 중첩 fragment를 활용한 창 구성

 

 

 

1. MainActivity

<?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="50dp"
        android:orientation="vertical">

        <com.google.android.material.tabs.TabLayout
            android:id="@+id/tabRoot"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <com.google.android.material.tabs.TabItem
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="탭1" />

            <com.google.android.material.tabs.TabItem
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="탭2" />

            <com.google.android.material.tabs.TabItem
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="탭3" />

            <com.google.android.material.tabs.TabItem
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="탭4" />
        </com.google.android.material.tabs.TabLayout>
    </LinearLayout>

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

        <FrameLayout
            android:id="@+id/tab_container"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

        </FrameLayout>
    </LinearLayout>
</LinearLayout>

 

package org.hdongle.layouttest;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import com.google.android.material.tabs.TabLayout;

public class MainActivity extends AppCompatActivity {
    TabLayout tabRoot;
    Fragment1 fragment1;
    Fragment2 fragment2;
    Fragment3 fragment3;
    Fragment4 fragment4;

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

        fragment1 = new Fragment1();
        fragment2 = new Fragment2();
        fragment3 = new Fragment3();
        fragment4 = new Fragment4();

        tabRoot = findViewById(R.id.tabRoot);
        tabRoot.removeAllTabs();
        tabRoot.addTab(tabRoot.newTab().setText("1번탭"));
        tabRoot.addTab(tabRoot.newTab().setText("2번탭"));
        tabRoot.addTab(tabRoot.newTab().setText("3번탭"));
        tabRoot.addTab(tabRoot.newTab().setText("4번탭"));

        getSupportFragmentManager().beginTransaction().replace(R.id.tab_container, fragment1).commit();

        tabRoot.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
            @Override
            public void onTabSelected(TabLayout.Tab tab) {
                switch(tab.getPosition())
                {
                    case 0:
                        getSupportFragmentManager().beginTransaction().replace(R.id.tab_container, fragment1).commit();
                        break;
                    case 1:
                        getSupportFragmentManager().beginTransaction().replace(R.id.tab_container, fragment2).commit();
                        break;
                    case 2:
                        getSupportFragmentManager().beginTransaction().replace(R.id.tab_container, fragment3).commit();
                        break;
                    case 3:
                        getSupportFragmentManager().beginTransaction().replace(R.id.tab_container, fragment4).commit();
                        break;
                }
            }

            @Override
            public void onTabUnselected(TabLayout.Tab tab) {

            }

            @Override
            public void onTabReselected(TabLayout.Tab tab) {

            }
        });

    }
}

 

2. Tab1 & Fragment1

 - getChildFragmentManager()를 활용한 중첩 Fragment

<?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">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:orientation="vertical">

        <EditText
            android:id="@+id/editTextTextPersonName2"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:ems="10"
            android:inputType="textPersonName"
            android:text="Name" />

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

            <Button
                android:id="@+id/btn1_1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="4dp"
                android:layout_marginRight="2dp"
                android:layout_weight="1"
                android:text="탭1-1" />

            <Button
                android:id="@+id/btn1_2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="2dp"
                android:layout_marginRight="2dp"
                android:layout_weight="1"
                android:text="탭1-2" />

            <Button
                android:id="@+id/btn1_3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="2dp"
                android:layout_marginRight="4dp"
                android:layout_weight="1"
                android:text="탭1-3" />

        </LinearLayout>
    </LinearLayout>

    <FrameLayout
        android:id="@+id/tab1_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

</LinearLayout>

public class Fragment1 extends Fragment {
    Fragment1_1 fragment1_1;
    Fragment1_2 fragment1_2;
    Fragment1_3 fragment1_3;

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        //return super.onCreateView(inflater, container, savedInstanceState);
        ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.fragment1, container, false);

        fragment1_1 = new Fragment1_1();
        fragment1_2 = new Fragment1_2();
        fragment1_3 = new Fragment1_3();

        getChildFragmentManager().beginTransaction().replace(R.id.tab1_container, fragment1_1).commit();

        Button btn = rootView.findViewById(R.id.btn1_1);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                getChildFragmentManager().beginTransaction().replace(R.id.tab1_container, fragment1_1).commit();
            }
        });

        btn = rootView.findViewById(R.id.btn1_2);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                getChildFragmentManager().beginTransaction().replace(R.id.tab1_container, fragment1_2).commit();
            }
        });

        btn = rootView.findViewById(R.id.btn1_3);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                getChildFragmentManager().beginTransaction().replace(R.id.tab1_container, fragment1_3).commit();
            }
        });

        return rootView;
    }
}

3. 1-1 화면들(1-2, 1-3 화면은 생략)

<?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">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:id="@+id/textView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="4dp"
            android:text="Tab1_1 - Top"
            android:textSize="30sp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.498"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <TextView
            android:id="@+id/textView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="bottom"
            android:text="Tab1_1 - Bottom"
            android:textSize="30sp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent" />
    </androidx.constraintlayout.widget.ConstraintLayout>

</LinearLayout>

package org.hdongle.layouttest;

import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;

public class Fragment1_1 extends Fragment {
    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        //return super.onCreateView(inflater, container, savedInstanceState);
        ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.fragment1_1, container, false);
        return rootView;
    }
}

 

4. Fragment2(Fragment3, 4는 생략)

<?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">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:id="@+id/textView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="4dp"
            android:text="Tab2 - Top"
            android:textSize="30sp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.498"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <TextView
            android:id="@+id/textView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="bottom"
            android:text="Tab2 - Bottom"
            android:textSize="30sp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent" />
    </androidx.constraintlayout.widget.ConstraintLayout>

</LinearLayout>

package org.hdongle.layouttest;

import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;

public class Fragment2 extends Fragment {
    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        //return super.onCreateView(inflater, container, savedInstanceState);
        ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.fragment2, container, false);
        return rootView;
    }
}