슬라이드 예제 2

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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity2">

    <FrameLayout
        android:layout_marginTop="20dp"
        android:layout_width="match_parent"
        android:layout_height="320dp">

        <androidx.viewpager2.widget.ViewPager2
            android:id="@+id/viewpager"
            android:clipToPadding="false"
            android:clipChildren="false"
            android:layout_width="match_parent"
            android:layout_height="320dp"/>

        <me.relex.circleindicator.CircleIndicator
            android:id="@+id/indicator"
            android:layout_width="match_parent"
            android:layout_height="48dp"
            android:layout_gravity="bottom"/>

    </FrameLayout>
        <TextView
        android:id="@+id/text"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:text="texttext"/>
</LinearLayout>

 

fragment_one.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"
    tools:context=".OneFragment">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="320dp"
        android:layout_marginLeft="40dp"
        android:layout_marginRight="40dp">
        <ImageView
            android:id="@+id/imgBanner1"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#ff0000"
            android:contentDescription="myapp11"/>

        <TextView
            android:id="@+id/tvName1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:textColor="#ffffff"
            android:textSize="20sp"
            android:textStyle="bold"
            android:text="Hello Page 1"/>

    </RelativeLayout>
</FrameLayout>

 

fragment_two.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"
    tools:context=".TwoFragment">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="320dp"
        android:layout_marginLeft="40dp"
        android:layout_marginRight="40dp">
        <ImageView
            android:id="@+id/imgBanner2"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#00ff00"
            android:contentDescription="myapp11"/>

        <TextView
            android:id="@+id/tvName2"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:textColor="#ffffff"
            android:textSize="20sp"
            android:textStyle="bold"
            android:text="Hello Page 2"/>

    </RelativeLayout>

</FrameLayout>

 

fragment_three.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"
    tools:context=".ThreeFragment">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="320dp"
        android:layout_marginLeft="40dp"
        android:layout_marginRight="40dp">
        <ImageView
            android:id="@+id/imgBanner3"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#0000ff"
            android:contentDescription="myapp11"/>

        <TextView
            android:id="@+id/tvName3"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:textColor="#ffffff"
            android:textSize="20sp"
            android:textStyle="bold"
            android:text="Hello Page 3"/>

    </RelativeLayout>

</FrameLayout>

 

fragment_four.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"
    tools:context=".FourFragment">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="320dp"
        android:layout_marginLeft="40dp"
        android:layout_marginRight="40dp">
        <ImageView
            android:id="@+id/imgBanner4"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#FF9800"
            android:contentDescription="myapp11"/>

        <TextView
            android:id="@+id/tvName4"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:textColor="#ffffff"
            android:textSize="20sp"
            android:textStyle="bold"
            android:text="Hello Page 4"/>

    </RelativeLayout>

</FrameLayout>

---

main.activity

public class MainActivity2 extends AppCompatActivity {

    private  int num_page = 4;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        ViewPager2 viewPager2 = findViewById(R.id.viewpager);
        FragmentStateAdapter fragmentStateAdapter = new MyFragAdapter(this, num_page);
        viewPager2.setAdapter(fragmentStateAdapter);
    }
}

 

MyfragAdapter.java

// 뷰 페이저 화면 전환
public class MyFragAdapter extends FragmentStateAdapter {
    private  int mCount;
    public MyFragAdapter(@NonNull FragmentActivity fragmentActivity, int mCount) {
        super(fragmentActivity);
        this.mCount = mCount;
    }

    @NonNull
    @Override
    public Fragment createFragment(int position) {
        int index = getRealPosition(position);
        if(index == 0) return  new OneFragment();
        else if (index == 1) return new TwoFragment();
        else if (index == 2)return  new  ThreeFragment();
        else return new  FourFragment();
    }
    @Override
    public int getItemCount() {
        return 200;
    }
    ////
    private int getRealPosition(int position) {
        return  position % mCount;
    }
}

---

결과 값