[안드로이드] 프래그먼트 작업

---

---

# activity_main.xml

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

    <LinearLayout
        android:id="@+id/ll"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn_first"
            android:layout_width="0dip"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:text="First Tab"/>

        <Button
            android:id="@+id/btn_second"
            android:layout_width="0dip"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:text="Second Tab"
            />

        <Button
            android:id="@+id/btn_third"
            android:layout_width="0dip"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:text="Third Tab"
            />

    </LinearLayout>

    <android.support.v4.view.ViewPager
        android:id="@+id/pager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/ll"
        >
    </android.support.v4.view.ViewPager>

</RelativeLayout>

# MainActivity.java

package com.example.bhj28.fragment;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    ViewPager pager;

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

        pager = (ViewPager)findViewById(R.id.pager);
        Button btn_first = (Button)findViewById(R.id.btn_first);
        Button btn_second = (Button)findViewById(R.id.btn_second);
        Button btn_third = (Button)findViewById(R.id.btn_third);

        pager.setAdapter(new pagerAdapter(getSupportFragmentManager()));
        pager.setCurrentItem(0);

        View.OnClickListener movePageListener = new View.OnClickListener()
        {
            @Override
            public void onClick(View view) {
                int tag = (int)view.getTag();
                pager.setCurrentItem(tag);
            }
        };

        btn_first.setOnClickListener(movePageListener);
        btn_first.setTag(0);
        btn_second.setOnClickListener(movePageListener);
        btn_second.setTag(1);
        btn_third.setOnClickListener(movePageListener);
        btn_third.setTag(2);
    }

    private class pagerAdapter extends FragmentStatePagerAdapter
    {
        public pagerAdapter(FragmentManager fm )
        {
            super(fm);
        }

        @Override
        public Fragment getItem(int position) {
            switch(position)
            {
                case 0:
                    return new frag1();
                case 1:
                    return new frag2();
                case 2:
                    return new frag3();
                default:
                    return null;
            }
        }

        @Override
        public int getCount() {
            // total page count
            return 3;
        }
    }
}

# activity_frag1.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#FF0000">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:textSize="30dp"
        android:textStyle="bold"
        android:text="Second_Page" />

</RelativeLayout>

# frag1.java

package com.example.bhj28.fragment;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RelativeLayout;

public class frag1 extends Fragment {
    public frag1() {
        // required
    }

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

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, 
                                @Nullable Bundle savedInstanceState) {
        RelativeLayout layout = 
        (RelativeLayout) inflater.inflate(R.layout.activity_frag1, container, false);
        return layout;
    }
}

# 마무리

위 포스트는 제가 직접 제작한 것 입니다.

그렇기 때문에 틀린점이나 설명이 엉성한 점이 존재할 수 있습니다.

만약 틀린점이나 설명이 엉성한 부분이 존재하면 댓글로 알려주세요.

빠른 처리 하도록 하겠습니다.

티스토리 앱으로는 댓글 이용이 불가능 하므로 웹 브라우저로 봐 주세요

(URL : http://junprogramer.tistory.com/)

읽어주셔서 감사합니다.