[기능추가] 사용자 상세화면에서 뷰페이저, 프래그먼트를 통해 Repository, Follower, Following 조회 되도록 추가

Author: Young-Gun

app/build.gradle

@@ -50,8 +50,8 @@ dependencies {
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
 
     // For ViewModel simple create
-    implementation 'androidx.activity:activity-ktx:1.1.0'
-    implementation 'androidx.fragment:fragment-ktx:1.2.5'
+    implementation 'androidx.activity:activity-ktx:1.7.0'
+    implementation 'androidx.fragment:fragment-ktx:1.5.6'
 
     // Mockk
     testImplementation 'io.mockk:mockk:1.13.4'

app/src/main/java/com/gun/githubapi/common/BaseFragment.kt

@@ -0,0 +1,5 @@
+package com.gun.githubapi.common
+
+import androidx.fragment.app.Fragment
+
+abstract class BaseFragment : Fragment()

app/src/main/java/com/gun/githubapi/common/ZoomOutPageTransformer.kt

@@ -0,0 +1,42 @@
+package com.gun.githubapi.common
+
+import android.view.View
+import androidx.viewpager2.widget.ViewPager2
+
+private const val MIN_SCALE = 0.85f
+private const val MIN_ALPHA = 0.5f
+
+class ZoomOutPageTransformer : ViewPager2.PageTransformer {
+
+    override fun transformPage(view: View, position: Float) {
+        view.apply {
+            val pageWidth = width
+            val pageHeight = height
+            when {
+                position < -1 -> {
+                    alpha = 0f
+                }
+                position <= 1 -> {
+                    val scaleFactor = Math.max(MIN_SCALE, 1 - Math.abs(position))
+                    val vertMargin = pageHeight * (1 - scaleFactor) / 2
+                    val horzMargin = pageWidth * (1 - scaleFactor) / 2
+                    translationX = if (position < 0) {
+                        horzMargin - vertMargin / 2
+                    } else {
+                        horzMargin + vertMargin / 2
+                    }
+
+                    scaleX = scaleFactor
+                    scaleY = scaleFactor
+
+                    alpha = (MIN_ALPHA +
+                            (((scaleFactor - MIN_SCALE) / (1 - MIN_SCALE)) * (1 - MIN_ALPHA)))
+                }
+                else -> {
+                    alpha = 0f
+                }
+            }
+        }
+    }
+}
+    

app/src/main/java/com/gun/githubapi/data/repository/UserRepository.kt

@@ -6,4 +6,6 @@ import com.gun.githubapi.data.dto.user.User
 interface UserRepository {
     suspend fun fetchUserList(): Pager<Int, User>
     suspend fun fetchUser(userName: String): User
+    suspend fun fetchFollowerList(userName: String): MutableList<User>
+    suspend fun fetchFollowingList(userName: String): MutableList<User>
 }

app/src/main/java/com/gun/githubapi/data/repository/UserRepositoryImpl.kt

@@ -23,4 +23,12 @@ class UserRepositoryImpl(
     override suspend fun fetchUser(userName: String): User {
         return userRemoteDataSource.fetchUser(userName)
     }
+
+    override suspend fun fetchFollowerList(userName: String): MutableList<User> {
+        return userRemoteDataSource.fetchFollowerList(userName)
+    }
+
+    override suspend fun fetchFollowingList(userName: String): MutableList<User> {
+        return userRemoteDataSource.fetchFollowingList(userName)
+    }
 }

app/src/main/java/com/gun/githubapi/data/service/UserService.kt

@@ -11,4 +11,10 @@ interface UserService {
 
     @GET("users/{userName}")
     suspend fun fetchUser(@Path("userName") userName: String): User
+
+    @GET("users/{userName}/followers")
+    suspend fun fetchFollowerList(@Path("userName") userName: String): MutableList<User>
+
+    @GET("users/{userName}/following")
+    suspend fun fetchFollowing(@Path("userName") userName: String): MutableList<User>
 }

app/src/main/java/com/gun/githubapi/data/source/UserRemoteDataSource.kt

@@ -4,4 +4,6 @@ import com.gun.githubapi.data.dto.user.User
 
 interface UserRemoteDataSource {
     suspend fun fetchUser(userName: String): User
+    suspend fun fetchFollowerList(userName: String):MutableList<User>
+    suspend fun fetchFollowingList(userName: String):MutableList<User>
 }

app/src/main/java/com/gun/githubapi/data/source/UserRemoteDataSourceImpl.kt

@@ -7,4 +7,12 @@ class UserRemoteDataSourceImpl(private val userService: UserService) : UserRemot
     override suspend fun fetchUser(userName: String): User {
         return userService.fetchUser(userName)
     }
+
+    override suspend fun fetchFollowerList(userName: String): MutableList<User> {
+        return userService.fetchFollowerList(userName)
+    }
+
+    override suspend fun fetchFollowingList(userName: String): MutableList<User> {
+        return userService.fetchFollowing(userName)
+    }
 }

app/src/main/java/com/gun/githubapi/ui/user/detail/InterestingUserRecyclerAdapter.kt

@@ -0,0 +1,36 @@
+package com.gun.githubapi.ui.user.detail
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import com.gun.githubapi.common.recyclerview.BaseListAdapter
+import com.gun.githubapi.common.recyclerview.BaseViewHolder
+import com.gun.githubapi.common.recyclerview.ItemClickListener
+import com.gun.githubapi.data.dto.user.User
+import com.gun.githubapi.databinding.HolderUserInterestingBinding
+
+class InterestingUserRecyclerAdapter(val listener: ItemClickListener<User>?) :
+    BaseListAdapter<User, InterestingUserRecyclerAdapter.UserViewHolder>() {
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): UserViewHolder {
+        val view =
+            HolderUserInterestingBinding.inflate(LayoutInflater.from(parent.context), parent, false)
+        return UserViewHolder(view)
+    }
+
+    override fun onBindViewHolder(holder: UserViewHolder, position: Int) {
+        getItem(holder.bindingAdapterPosition)?.let {
+            holder.setData(it)
+        }
+    }
+
+    inner class UserViewHolder(private val binding: HolderUserInterestingBinding) :
+        BaseViewHolder(binding.root) {
+        fun setData(user: User) {
+            binding.user = user
+
+            if (listener != null) {
+                binding.listener = listener
+            }
+        }
+    }
+}