\n dependencies {\n implementation \"androidx.viewpager2:viewpager2:1.1.0\"\n }\n <\/pre>\n\n Let’s write the XML layout file needed to use ViewPager2.\n <\/p>\n
2.1. XML Layout<\/h3>\n
\n Below is an example of a basic layout that includes ViewPager2.\n <\/p>\n
\n <?xml version=\"1.0\" encoding=\"utf-8\"?>\n <androidx.constraintlayout.widget.ConstraintLayout xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\n xmlns:app=\"http:\/\/schemas.android.com\/apk\/res-auto\"\n xmlns:tools=\"http:\/\/schemas.android.com\/tools\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n tools:context=\".MainActivity\">\n\n <androidx.viewpager2.widget.ViewPager2\n android:id=\"@+id\/viewPager\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n app:layout_constraintTop_toTopOf=\"parent\"\n app:layout_constraintBottom_toBottomOf=\"parent\"\n app:layout_constraintStart_toStartOf=\"parent\"\n app:layout_constraintEnd_toEndOf=\"parent\"\/>\n <\/androidx.constraintlayout.widget.ConstraintLayout>\n <\/pre>\n3. Implementing ViewPager2 Adapter<\/h2>\n
\n ViewPager2 requires an adapter to display pages.
\n Below is a simple example of adapter implementation. This adapter uses custom Fragments to create each page.\n <\/p>\n
3.1. Creating Fragment<\/h3>\n
\n First, create a Fragment class that represents each page.\n <\/p>\n
\n class CustomFragment : Fragment() {\n\n override fun onCreateView(\n inflater: LayoutInflater, container: ViewGroup?,\n savedInstanceState: Bundle?\n ): View? {\n val view = inflater.inflate(R.layout.fragment_custom, container, false)\n return view\n }\n }\n <\/pre>\n3.2. Implementing Fragment Adapter<\/h3>\n
\n Next, implement the adapter by inheriting from FragmentStateAdapter.\n <\/p>\n
\n class ViewPagerAdapter(fragmentActivity: FragmentActivity) : FragmentStateAdapter(fragmentActivity) {\n\n override fun getItemCount(): Int {\n return 3 \/\/ Number of pages\n }\n\n override fun createFragment(position: Int): Fragment {\n return CustomFragment() \/\/ Return a different Fragment for each page\n }\n }\n <\/pre>\n4. Setting up MainActivity<\/h2>\n
\n Now, let’s connect ViewPager2 and the adapter in MainActivity.\n <\/p>\n
\n class MainActivity : AppCompatActivity() {\n\n private lateinit var viewPager: ViewPager2\n\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_main)\n\n viewPager = findViewById(R.id.viewPager)\n viewPager.adapter = ViewPagerAdapter(this)\n }\n }\n <\/pre>\n5. Configuring Fragment Layout<\/h2>\n
\n Now, let’s configure the layout to be used in each Fragment.
\n In this example, we will simply display text.\n <\/p>\n
\n <?xml version=\"1.0\" encoding=\"utf-8\"?>\n <LinearLayout xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n android:orientation=\"vertical\"\n android:gravity=\"center\">\n\n <TextView\n android:id=\"@+id\/textView\"\n android:layout_width=\"wrap_content\"\n android:layout_height=\"wrap_content\"\n android:text=\"Hello, ViewPager2!\"\n android:textSize=\"24sp\"\/>\n\n <\/LinearLayout>\n <\/pre>\n6. Adding Swipe Page Transition Effects<\/h2>\n
\n ViewPager2 applies swipe animations by default, but you can customize it to apply various page transition effects.\n <\/p>\n
\n class ViewPagerAdapter(fragmentActivity: FragmentActivity) : FragmentStateAdapter(fragmentActivity) {\n\n \/\/ ... existing code ...\n\n override fun createFragment(position: Int): Fragment {\n \/\/ You can return a different Fragment based on position to vary page content\n return when (position) {\n 0 -> FirstFragment()\n 1 -> SecondFragment()\n else -> ThirdFragment()\n }\n }\n }\n <\/pre>\n\n Here, you can define your desired page transition effect and apply it using ViewPager2’s
\n setPageTransformer<\/code> method.\n <\/p>\n\n viewPager.setPageTransformer { page, position ->\n page.alpha = 0f\n if (position >= -1 && position <= 1) { \/\/ [-1,1]\n page.alpha = 1 - Math.abs(position)\n }\n }\n <\/pre>\n7. Conclusion<\/h2>\n
\n In this tutorial, we learned how to configure multiple swipable pages using ViewPager2.
\n You can enhance user experience by utilizing various page transition effects.
\n You can develop a richer app by adding additional features or integrating with other UI components.\n <\/p>\n
\n Enjoy the joy of Android development!\n <\/p>\n
<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"
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ViewPager2 is a UI component … \ub354 \ubcf4\uae30 “course on Kotlin Android App Development, View Pager 2 – Screen Composition with Swipe Navigation”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[143],"tags":[],"class_list":["post-36967","post","type-post","status-publish","format-standard","hentry","category-kotlin-android-app-development"],"yoast_head":"\ncourse on Kotlin Android App Development, View Pager 2 - Screen Composition with Swipe Navigation - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/atmokpo.com\/w\/36967\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"course on Kotlin Android App Development, View Pager 2 - Screen Composition with Swipe Navigation - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\" \/>\n<meta property=\"og:description\" content=\"When developing Android apps, a feature that allows users to swipe through multiple pages is very useful. 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