[2017.09.29] 26. Tab Layout 개념과 실습

개념

(출처 - https://developer.android.com/reference/android/support/design/widget/TabLayout.html)

탭을 보여주기 위한 수평 레이아웃이다. 탭 레이아웃은 일반적으로 viewpager와 함께 많이 사용된다.

실습

1. Android에서 Tab을 등록하는 방법

MainActivity

public class MainActivity extends AppCompatActivity {
    private TabLayout tabLayout;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        tabLayout = (TabLayout) findViewById(R.id.tabLayout);
        
        tabLayout.addTab(tabLayout.newTab().setText("First"));
        tabLayout.addTab(tabLayout.newTab().setText("Second"));
        tabLayout.addTab(tabLayout.newTab().setText("Third"));
    }
    // ...
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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="com.example.heepie.tablayout.MainActivity">
 
    <android.support.design.widget.TabLayout
        android:layout_width="0dp"
        android:layout_height="50dp"
        android:layout_marginLeft="8dp"
        android:layout_marginRight="8dp"
        android:layout_marginTop="8dp"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        android:id="@+id/tabLayout">
    </android.support.design.widget.TabLayout>
</android.support.constraint.ConstraintLayout>

2. xml에서 등록하는 방법

MainActivity

Default로 xml만 설정해주면 된다.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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="com.example.heepie.tablayout.MainActivity">
 
    <android.support.design.widget.TabLayout
        android:layout_width="0dp"
        android:layout_height="50dp"
        android:layout_marginLeft="8dp"
        android:layout_marginRight="8dp"
        android:layout_marginTop="8dp"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        android:id="@+id/tabLayout"
        android:layout_marginStart="8dp"
        android:layout_marginEnd="8dp">
 
        <android.support.design.widget.TabItem
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="First" />
 
        <android.support.design.widget.TabItem
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Second" />
 
        <android.support.design.widget.TabItem
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Third" />
 
    </android.support.design.widget.TabLayout>
</android.support.constraint.ConstraintLayout>
 

스크린 샷

#tablayout #탭 레이아웃 #안드로이드 탭 레이아웃