안드로이드 TabLayout ViewPager

많은 앱들이 카카오톡 처럼 탭 뷰페이저 형식을 사용합니다.

그래서 간단히 TabLayout + ViewPager + fragment 형식의 앱을 만들어서 공유드립니다.

다음과 같이 만들었는데요 

1. 라이브러리 셋팅

compile 'com.android.support:appcompat-v7:25.2.0'
compile 'com.android.support:support-v4:25.2.0'
compile 'com.android.support:recyclerview-v7:25.2.0'
compile 'com.android.support:design:25.2.0'

- AppCompatActivity클래스는 appcompatV7 라이브러리에 포함되어 있습니다.

- ViewPager클래스는 supportV4 라이브러리에 포함되어 있습니다.

- TabLayout은 design 라이브러리에 포함되어 있습니다.

2. 소스코드

MainActivity.java

import android.support.design.widget.TabLayout;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;

import pe.sk.com.myapplication.R;
import pe.sk.com.myapplication.adapter.MainTabPagerAdapter;
import pe.sk.com.myapplication.data.DummyContent;
import pe.sk.com.myapplication.listener.OnListFragmentInteractionListener;

public class MainActivity extends AppCompatActivity implements OnListFragmentInteractionListener {
    private TabLayout mTabLayout = null;                // 탭 레이아웃
    private ViewPager mViewPager = null;                // 뷰 페이저
    private MainTabPagerAdapter mPagerAdapter = null;   // 탭 어댑터

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mTabLayout = (TabLayout) findViewById(R.id.main_tab);
        mViewPager = (ViewPager) findViewById(R.id.main_viewpager);
        mTabLayout.setupWithViewPager(mViewPager);

        mPagerAdapter = new MainTabPagerAdapter(getSupportFragmentManager(), this);
        mViewPager.setAdapter(mPagerAdapter);
        mViewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(mTabLayout));
        mTabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
            @Override
            public void onTabSelected(TabLayout.Tab tab) {
                mViewPager.setCurrentItem(tab.getPosition());
            }

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

            }

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

            }
        });
    }

    @Override
    public void onListFragmentInteraction(DummyContent.DummyItem item) {
        Toast.makeText(this,item.content,Toast.LENGTH_SHORT).show();
    }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

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

        <android.support.design.widget.TabLayout
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
            android:id="@+id/main_tab"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
            android:background="#ff880033"
            android:minHeight="?attr/actionBarSize"
            app:tabIndicatorColor="#bbdefa"
            app:tabSelectedTextColor="#ffffff"
            app:tabTextColor="#88ffffff"
            />


        <android.support.v4.view.ViewPager
            android:id="@+id/main_viewpager"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_below="@id/main_tab"
            />
    </RelativeLayout>
</android.support.v4.widget.DrawerLayout>

MainTabPagerAdapter.java

import android.content.Context;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;

import pe.sk.com.myapplication.R;
import pe.sk.com.myapplication.fragment.FirstFragment;
import pe.sk.com.myapplication.fragment.TwoFragment;

/**
 * Created by P092613 on 2017-03-09.
 */

public class MainTabPagerAdapter extends FragmentStatePagerAdapter {
    private final static int TAB_COUNT = 2;     // 탭의 개수

    private Context mContext;
    private FirstFragment mFirstFragment = null;
    private TwoFragment mTwoFragment = null;

    private int[] mTabTitle = {R.string.first, R.string.two};

    public MainTabPagerAdapter(FragmentManager fm, Context context) {
        super(fm);
        this.mContext = context;
    }

    @Override
    public Fragment getItem(int position) {
        switch (position) {
            case 0:
                mFirstFragment = FirstFragment.newInstance(1);
                return mFirstFragment;
            default:
                mTwoFragment = TwoFragment.newInstance(1);
                return mTwoFragment;
        }
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return mContext.getString(mTabTitle[position]);
    }

    @Override
    public int getCount() {
        return TAB_COUNT;
    }
}

FirstFragment.java 와 TwoFragment.java 코드는 동일함

import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import pe.sk.com.myapplication.R;
import pe.sk.com.myapplication.adapter.FirstRecyclerViewAdapter;
import pe.sk.com.myapplication.data.DummyContent;
import pe.sk.com.myapplication.listener.OnListFragmentInteractionListener;

/**
 * A fragment representing a list of Items.
 * <p/>
 * Activities containing this fragment MUST implement the {@link OnListFragmentInteractionListener}
 * interface.
 */
public class FirstFragment extends Fragment {

    // TODO: Customize parameter argument names
    private static final String ARG_COLUMN_COUNT = "column-count";
    // TODO: Customize parameters
    private int mColumnCount = 1;
    private OnListFragmentInteractionListener mListener;

    /**
     * Mandatory empty constructor for the fragment manager to instantiate the
     * fragment (e.g. upon screen orientation changes).
     */
    public FirstFragment() {
    }

    // TODO: Customize parameter initialization
    @SuppressWarnings("unused")
    public static FirstFragment newInstance(int columnCount) {
        FirstFragment fragment = new FirstFragment();
        Bundle args = new Bundle();
        args.putInt(ARG_COLUMN_COUNT, columnCount);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        if (getArguments() != null) {
            mColumnCount = getArguments().getInt(ARG_COLUMN_COUNT);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_first_list, container, false);

        // Set the adapter
        if (view instanceof RecyclerView) {
            Context context = view.getContext();
            RecyclerView recyclerView = (RecyclerView) view;
            if (mColumnCount <= 1) {
                recyclerView.setLayoutManager(new LinearLayoutManager(context));
            } else {
                recyclerView.setLayoutManager(new GridLayoutManager(context, mColumnCount));
            }
            recyclerView.setAdapter(new FirstRecyclerViewAdapter(DummyContent.ITEMS, mListener));
        }
        return view;
    }


    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        if (context instanceof OnListFragmentInteractionListener) {
            mListener = (OnListFragmentInteractionListener) context;
        } else {
            throw new RuntimeException(context.toString()
                    + " must implement OnListFragmentInteractionListener");
        }
    }

    @Override
    public void onDetach() {
        super.onDetach();
        mListener = null;
    }


}

FirstRecyclerViewAdapter.java 와 TwoRecyclerViewAdapter.java 코드는 동일함

import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import java.util.List;

import pe.sk.com.myapplication.R;
import pe.sk.com.myapplication.data.DummyContent.DummyItem;
import pe.sk.com.myapplication.listener.OnListFragmentInteractionListener;

/**
 * {@link RecyclerView.Adapter} that can display a {@link DummyItem} and makes a call to the
 * specified {@link OnListFragmentInteractionListener}.
 * TODO: Replace the implementation with code for your data type.
 */
public class FirstRecyclerViewAdapter extends RecyclerView.Adapter<FirstRecyclerViewAdapter.ViewHolder> {

    private final List<DummyItem> mValues;
    private final OnListFragmentInteractionListener mListener;

    public FirstRecyclerViewAdapter(List<DummyItem> items, OnListFragmentInteractionListener listener) {
        mValues = items;
        mListener = listener;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.fragment_first, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(final ViewHolder holder, int position) {
        holder.mItem = mValues.get(position);
        holder.mIdView.setText(mValues.get(position).id);
        holder.mContentView.setText(mValues.get(position).content);

        holder.mView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (null != mListener) {
                    // Notify the active callbacks interface (the activity, if the
                    // fragment is attached to one) that an item has been selected.
                    mListener.onListFragmentInteraction(holder.mItem);
                }
            }
        });
    }

    @Override
    public int getItemCount() {
        return mValues.size();
    }

    public class ViewHolder extends RecyclerView.ViewHolder {
        public final View mView;
        public final TextView mIdView;
        public final TextView mContentView;
        public DummyItem mItem;

        public ViewHolder(View view) {
            super(view);
            mView = view;
            mIdView = (TextView) view.findViewById(R.id.id);
            mContentView = (TextView) view.findViewById(R.id.content);
        }

        @Override
        public String toString() {
            return super.toString() + " '" + mContentView.getText() + "'";
        }
    }
}

fragment_first_list.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.RecyclerView
    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:id="@+id/list"
    android:name="pe.sk.com.myapplication.fragment.FirstItemFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginLeft="16dp"
    android:layout_marginRight="16dp"
    app:layoutManager="LinearLayoutManager"
    tools:context="pe.sk.com.myapplication.fragment.FirstFragment"
    tools:listitem="@layout/fragment_first"/>

fragment_first.xml

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

    <TextView
        android:id="@+id/id"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="@dimen/text_margin"
        android:textAppearance="?attr/textAppearanceListItem"/>

    <TextView
        android:id="@+id/content"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="@dimen/text_margin"
        android:textAppearance="?attr/textAppearanceListItem"/>
</LinearLayout>

끝