[안드로이드] RecyclerView With TabLayout (Feat. ViewPager)

& 필요한 파일 &

[ JAVA Class ]

* Activity

MainActivity.java

ㄴ ViewPager의 코드가 위치할 곳

*Adapter

BucketAdapter.java

ㄴ RecyclerView의 Adapter

TabPagerAdapter.java

ㄴ ViewPager의 Adapter

*Fragment

processingFragment.java

ㄴFragment의 내용

completedFragment.java

ㄴFragment의 내용

*Item

BucketItem.java

ㄴRecyclerView의 Row Item

[ RESOURCE File ]

activitiy_main.xml

fragment_processing.xml (= Fragment 1)

fragment_completed.xml (= Fragment 2)

item_bucket (= RecyclerView의 Row가 될 Layout)

[Step 1]

dependencies {
compile 'com.android.support:design:25.0.0'
}

android support library를 사용하기 위해서 위 라이브러리를 gradle 에 추가하고 sync를 맞춰 줍니다.

[Step 2]

activitiy_main.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:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.jnj.kickthebucket.Activity.MainActivity">

    <android.support.design.widget.TabLayout
        android:id="@+id/tabLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:tabIndicatorColor="@color/colorPrimary" />

    <android.support.v4.view.ViewPager
        android:id="@+id/viewPager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#ffffff" />
</LinearLayout>

MainActivitiy에는 TabLayout과 ViewPager를 넣습니다.

[Step 3]

fragment_processing.xml

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

    <android.support.v7.widget.RecyclerView
        android:layout_margin="5dp"
        android:id="@+id/processing_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</LinearLayout>

fragment_completed.xml

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

    <android.support.v7.widget.RecyclerView
        android:layout_margin="5dp"
        android:id="@+id/processing_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</LinearLayout>

TabLayout을 활용하여 2개의 Fragment를 이동할 것 이므로 Fragment에는 아무거나 넣어도 됩니당

[Step 3]

Item_bucket.xml

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

    <TextView
        android:id="@+id/bucket_title"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Bucket Title"
        android:textColor="#000000"
        android:textSize="20dp" />

    <TextView
        android:id="@+id/bucket_date"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Date"
        android:textSize="10dp" />

    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="#eaeaea" />
</LinearLayout>

RecyclerView의 Row 아이템이 될 Layout을 만들어 줍니다.

[Step 4]

Item_bucket.java

public class BucketItem {
    String title;
    String date;

    public BucketItem(String title, String date) {
        this.title = title;
        this.date = date;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getDate() {
        return date;
    }

    public void setDate(String date) {
        this.date = date;
    }
}

ButketItem의 Value Object 클래스를 만들어주고 Setter/getter를 만들어줍니다.

[Step 5]

public class CompletedFragment extends Fragment {
    RecyclerView completedList;
    BucketAdapter adapter;
    Paint p = new Paint();

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_completed, container, false);
        completedList = (RecyclerView) view.findViewById(R.id.completed_list);
        LinearLayoutManager lm = new LinearLayoutManager(getActivity(), LinearLayoutManager.VERTICAL, false);
        completedList.setLayoutManager(lm);

        List<BucketItem> bucketItems = new ArrayList<>();
        BucketItem[] bucketItem = new BucketItem[5];

        for(int i = 0; i < 5; i++) {
            bucketItem[i] = new BucketItem("완료", "2017-01-31");
            bucketItems.add(bucketItem[i]);
        }

        completedList.setAdapter(new BucketListAdapter(getActivity(), bucketItems, R.layout.fragment_processing));

        return view;

Fragment에서 layout을 사용하기 위해서 inflate하여 해당 아이템과 리니어 매니저를 통해서 지정하고

아답터를 여결

[Step 6]

public class BucketAdapter extends RecyclerView.Adapter<BucketAdapter.ViewHolder> {
    Context context;
    List<BucketItem> items;

    public BucketAdapter(Context context, List<BucketItem> items) {
        this.context = context;
        this.items = items;
    }


    @Override
    public BucketAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_bucket, null);
        return new ViewHolder(v);
    }

    @Override
    public void onBindViewHolder(BucketAdapter.ViewHolder holder, int position) {
        BucketItem item = items.get(position);
        holder.bucketItemLayout.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Toast.makeText(context, "테스트", Toast.LENGTH_SHORT).show();

                Intent intent = new Intent(context, DetailActivity.class);
                context.startActivity(intent);
            }
        });
        holder.bucketTitle.setText(item.getTitle());
        holder.bucketDate.setText(item.getDate());
    }

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

    public class ViewHolder extends RecyclerView.ViewHolder {
        LinearLayout bucketItemLayout;
        TextView bucketTitle;
        TextView bucketDate;

        public ViewHolder(View itemView) {
            super(itemView);
            bucketItemLayout = (LinearLayout) itemView.findViewById(R.id.bucket_item_layout);
            bucketTitle = (TextView) itemView.findViewById(R.id.bucket_title);
            bucketDate = (TextView) itemView.findViewById(R.id.bucket_date);
        }
    }
}

[Step 7]

public class TabPagerAdapter extends FragmentPagerAdapter {
    List<Fragment> listFragments;

    public TabPagerAdapter(FragmentManager fm, List<Fragment> listFragments) {
        super(fm);
        this.listFragments = listFragments;
    }

    @Override
    public Fragment getItem(int position) {
        return listFragments.get(position);
    }

    @Override
    public int getCount() {
        return listFragments.size();
    }
}

프래그먼트들을 하나의 아댑터에서 관리 해주기 위한 작업

[Step 8]

public class MainActivity extends AppCompatActivity {
    TabLayout tabLayout;
    ViewPager viewPager;

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

        initViewPager();
    }

    private void initViewPager() {
        viewPager = (ViewPager) findViewById(R.id.viewPager);

        // 프래그먼트 리스트에 추가
        List<Fragment> listFragments = new ArrayList<>();
        listFragments.add(new ProcessingFragment());
        listFragments.add(new CompletedFragment());
        // 탭 어댑터에 리스트 넘겨준 후 뷰페이저 연결
        TabPagerAdapter fragmentPagerAdapter = new TabPagerAdapter(getSupportFragmentManager(), listFragments);
        viewPager.setAdapter(fragmentPagerAdapter);
        // 각 탭 이름 지정
        tabLayout = (TabLayout) findViewById(R.id.tabLayout);
        tabLayout.addTab(tabLayout.newTab().setText("프래그먼트A"));
        tabLayout.addTab(tabLayout.newTab().setText("프래그먼트B"));
        tabLayout.setTabTextColors(Color.LTGRAY, Color.BLUE);

        /* 뷰페이저 이동했을때 & 탭 눌렀을때 해당 위치로 이동 */
        viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
        tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
            @Override
            public void onTabSelected(TabLayout.Tab tab) {
                switch (tab.getPosition()) {
                    case 0:
                        viewPager.setCurrentItem(tab.getPosition());
                        break;
                    case 1:
                        viewPager.setCurrentItem(tab.getPosition());
                        break;
                }
            }

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

            }

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

            }
        });
    }
}

NEXT POST =>

 RecyclerView 좌/우 Swipe 구현 (feat. ItemTouchHelper)

[참고]

https://www.learn2crack.com/2016/02/custom-swipe-recyclerview.html