[Java] CoordinatorLayout + ViewPager2 + TabLayout

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Android/Java

[Java] CoordinatorLayout + ViewPager2 + TabLayout

혀가 길지 않은 개발자 2020. 8. 3. 18:27

CoordinatorLayout + ViewPager2 + TabLayout

build.gradle (Module: app)

dependencies {
    // material design
    implementation 'com.google.android.material:material:1.1.0'
    // ViewPager2
    implementation 'androidx.viewpager2:viewpager2:1.0.0'
    // RecyclerView
    implementation 'androidx.recyclerview:recyclerview:1.1.0'
}

styles.xml

<resources>
    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.MaterialComponents.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

</resources>

recyclerview_item.java

<?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="wrap_content">

    <TextView
        android:id="@+id/tvName"
        android:hint="James Kim"
        android:textSize="20dp"
        android:gravity="center"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

RecyclerViewAdapter.java

package com.jwsoft.javaproject;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import java.util.List;

public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.MyViewHolder> {

    private List<Integer> dataSet;

    public RecyclerViewAdapter(List<Integer> dataSet) {
        this.dataSet = dataSet;
    }

    class MyViewHolder extends RecyclerView.ViewHolder {
        TextView tvName;

        public MyViewHolder(@NonNull View itemView) {
            super(itemView);
            this.tvName = itemView.findViewById(R.id.tvName);
        }

        public void bind(int position) {
            this.tvName.setText((position+1) + " 혀가 길지 않은 개발자");
        }
    }

    @NonNull
    @Override
    public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        Context context = parent.getContext();
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View view = inflater.inflate(R.layout.recyclerview_item, parent, false);

        return new MyViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull MyViewHolder holder, int position) {
        holder.bind(position);
    }

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

viewpager_fragment.xml

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

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/rvName"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        tools:listitem="@layout/recyclerview_item" />

</FrameLayout>

ViewPagerFragmentRed.java

package com.jwsoft.javaproject;

import android.graphics.Color;
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;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import java.util.ArrayList;
import java.util.List;

public class ViewPagerFragmentRed extends Fragment {

    private RecyclerView recyclerView;

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater,
                             @Nullable ViewGroup container,
                             @Nullable Bundle savedInstanceState) {
        return inflater.inflate(R.layout.viewpager_fragment, container, false);
    }

    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        view.setBackgroundColor(Color.parseColor("#FFBBBB"));

        recyclerView = view.findViewById(R.id.rvName);

        List<Integer> dataSet = new ArrayList<>();
        for (int i=1; i<=100; i++) {
            dataSet.add(i);
        }
        RecyclerViewAdapter adapter = new RecyclerViewAdapter(dataSet);

        recyclerView.setAdapter(adapter);
        recyclerView.setLayoutManager(
                new LinearLayoutManager(view.getContext(),
                RecyclerView.VERTICAL,
                false)
        );
    }

}

ViewPagerFragmentGreen.java

package com.jwsoft.javaproject;

import android.graphics.Color;
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;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import java.util.ArrayList;
import java.util.List;

public class ViewPagerFragmentGreen extends Fragment {

    private RecyclerView recyclerView;

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater,
                             @Nullable ViewGroup container,
                             @Nullable Bundle savedInstanceState) {
        return inflater.inflate(R.layout.viewpager_fragment, container, false);
    }

    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        view.setBackgroundColor(Color.parseColor("#BBFFBB"));

        recyclerView = view.findViewById(R.id.rvName);

        List<Integer> dataSet = new ArrayList<>();
        for (int i=1; i<=100; i++) {
            dataSet.add(i);
        }
        RecyclerViewAdapter adapter = new RecyclerViewAdapter(dataSet);

        recyclerView.setAdapter(adapter);
        recyclerView.setLayoutManager(
                new LinearLayoutManager(view.getContext(),
                        RecyclerView.VERTICAL,
                        false)
        );
    }

}

ViewPagerFragmentBlue.java

package com.jwsoft.javaproject;

import android.graphics.Color;
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;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import java.util.ArrayList;
import java.util.List;

public class ViewPagerFragmentBlue extends Fragment {

    private RecyclerView recyclerView;

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater,
                             @Nullable ViewGroup container,
                             @Nullable Bundle savedInstanceState) {
        return inflater.inflate(R.layout.viewpager_fragment, container, false);
    }

    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        view.setBackgroundColor(Color.parseColor("#BBBBFF"));

        recyclerView = view.findViewById(R.id.rvName);

        List<Integer> dataSet = new ArrayList<>();
        for (int i=1; i<=100; i++) {
            dataSet.add(i);
        }
        RecyclerViewAdapter adapter = new RecyclerViewAdapter(dataSet);

        recyclerView.setAdapter(adapter);
        recyclerView.setLayoutManager(
                new LinearLayoutManager(view.getContext(),
                        RecyclerView.VERTICAL,
                        false)
        );
    }

}

ViewPagerFragmentAdapter.java

package com.jwsoft.javaproject;

import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentActivity;
import androidx.viewpager.widget.ViewPager;
import androidx.viewpager2.adapter.FragmentStateAdapter;

import java.util.ArrayList;
import java.util.List;

public class ViewPagerFragmentAdapter extends FragmentStateAdapter {

    private final int TYPE_RED = 0;
    private final int TYPE_GREEN = 1;
    private final int TYPE_BLUE = 2;

    private List<Integer> listType = new ArrayList<>();

    public ViewPagerFragmentAdapter(@NonNull FragmentActivity fragmentActivity) {
        super(fragmentActivity);
        listType.add(TYPE_RED);
        listType.add(TYPE_GREEN);
        listType.add(TYPE_BLUE);
    }

    @NonNull
    @Override
    public Fragment createFragment(int position) {
        switch (position) {
            case TYPE_RED:
                return new ViewPagerFragmentRed();
            case TYPE_GREEN:
                return new ViewPagerFragmentGreen();
            default:
                return new ViewPagerFragmentBlue();
        }
    }

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

activity_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:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <androidx.coordinatorlayout.widget.CoordinatorLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1">

        <com.google.android.material.appbar.AppBarLayout
            android:id="@+id/appBarLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <androidx.appcompat.widget.Toolbar
                android:id="@+id/toolBar"
                app:title="혀가 길지 않은 개발자"
                app:titleTextColor="@android:color/white"
                app:subtitle="CoordinatorLayout  +  ViewPager2  +  TabLayout"
                app:subtitleTextColor="@android:color/white"
                app:layout_scrollFlags="scroll|enterAlways"
                android:background="#FF7F00"
                android:layout_width="match_parent"
                android:layout_height="?android:attr/actionBarSize" />

        </com.google.android.material.appbar.AppBarLayout>

        <androidx.viewpager2.widget.ViewPager2
            android:id="@+id/viewPager2"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_behavior="@string/appbar_scrolling_view_behavior" />

    </androidx.coordinatorlayout.widget.CoordinatorLayout>

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

</LinearLayout>

MainActivity.java

package com.jwsoft.javaproject;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.viewpager2.widget.ViewPager2;

import android.os.Bundle;

import com.google.android.material.appbar.AppBarLayout;
import com.google.android.material.tabs.TabLayout;
import com.google.android.material.tabs.TabLayoutMediator;

public class MainActivity extends AppCompatActivity {

    private ViewPager2 viewPager2;
    private TabLayout tabLayout;
    private AppBarLayout appBarLayout;

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

        viewPager2 = findViewById(R.id.viewPager2);
        tabLayout = findViewById(R.id.tabLayout);
        appBarLayout = findViewById(R.id.appBarLayout);

        ViewPagerFragmentAdapter adapter = new ViewPagerFragmentAdapter(this);

        viewPager2.setAdapter(adapter);
        viewPager2.setOrientation(ViewPager2.ORIENTATION_HORIZONTAL);

        new TabLayoutMediator(tabLayout, viewPager2, new TabLayoutMediator.TabConfigurationStrategy() {
            @Override
            public void onConfigureTab(@NonNull TabLayout.Tab tab, int position) {
                switch (position) {
                    case 0:
                        tab.setText("RED");
                        break;
                    case 1:
                        tab.setText("GREEN");
                        break;
                    default:
                        tab.setText("BLUE");
                        break;
                }
            }
        }).attach();

        viewPager2.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
            @Override
            public void onPageSelected(int position) {
                super.onPageSelected(position);
                appBarLayout.setExpanded(true);
            }
        });
    }

}

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[Java] CoordinatorLayout + ViewPager2 + TabLayout

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