#6 onboarding/온보딩 화면 : 직장 검색 화면 📰

- 리사이클러뷰로 검색결과 구현
- 검색 결과가 없는 경우 이동시킬 버튼 구현

app/src/main/AndroidManifest.xml

@@ -17,6 +17,10 @@
         android:theme="@style/Theme.Hometerview"
         tools:targetApi="31">
 
+
+        <activity
+            android:name=".ui.onboardingresult.OnboardingResultActivity"
+            android:exported="false" />
         <activity
             android:name=".ui.onboarding.OnboardingActivity"
             android:exported="false" />

app/src/main/java/com/ftw/hometerview/adapter/DiffCallback.kt

@@ -0,0 +1,36 @@
+package com.ftw.hometerview.adapter
+
+import android.annotation.SuppressLint
+import androidx.recyclerview.widget.DiffUtil
+
+internal class DiffCallback : DiffUtil.ItemCallback<RecyclerItem>() {
+
+    override fun areItemsTheSame(
+        oldItem: RecyclerItem,
+        newItem: RecyclerItem
+    ): Boolean {
+        val oldData = oldItem.data
+        val newData = newItem.data
+        // Use appropriate comparator's method if both items implement the interface
+        // and rely on the plain 'equals' otherwise
+        return if (oldData is RecyclerItemComparator
+            && newData is RecyclerItemComparator
+        ) {
+            oldData.isSameItem(newData)
+        } else oldData == newData
+    }
+
+    @SuppressLint("DiffUtilEquals")
+    override fun areContentsTheSame(
+        oldItem: RecyclerItem,
+        newItem: RecyclerItem
+    ): Boolean {
+        val oldData = oldItem.data
+        val newData = newItem.data
+        return if (oldData is RecyclerItemComparator
+            && newData is RecyclerItemComparator
+        ) {
+            oldData.isSameContent(newData)
+        } else oldData == newData
+    }
+}

app/src/main/java/com/ftw/hometerview/adapter/RecyclerAdapter.kt

@@ -0,0 +1,59 @@
+package com.ftw.hometerview.adapter
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.databinding.DataBindingUtil
+import androidx.databinding.ViewDataBinding
+import androidx.recyclerview.widget.ListAdapter
+import androidx.recyclerview.widget.RecyclerView
+
+class DataBindingRecyclerAdapter : ListAdapter<RecyclerItem, BindingViewHolder>(
+    DiffCallback()
+) {
+    override fun getItemViewType(position: Int): Int {
+        return getItem(position).layoutId
+    }
+
+    override fun onCreateViewHolder(
+        parent: ViewGroup,
+        viewType: Int
+    ): BindingViewHolder {
+        val inflater = LayoutInflater.from(parent.context)
+        val binding: ViewDataBinding = DataBindingUtil.inflate(inflater, viewType, parent, false)
+        return BindingViewHolder(binding)
+    }
+
+    override fun onBindViewHolder(
+        holder: BindingViewHolder,
+        position: Int
+    ) {
+        holder.run {
+            getItem(position).bind(binding)
+            if (binding.hasPendingBindings()) {
+                binding.executePendingBindings()
+            }
+        }
+    }
+}
+
+class BindingViewHolder(
+    val binding: ViewDataBinding
+) : RecyclerView.ViewHolder(binding.root)
+
+private fun RecyclerItem.bind(binding: ViewDataBinding) {
+    val isVariableFound = binding.setVariable(variableId, data)
+    if (isVariableFound.not()) {
+        throw IllegalStateException(
+            buildErrorMessage(variableId, binding)
+        )
+    }
+}
+
+private fun buildErrorMessage(
+    variableId: Int,
+    binding: ViewDataBinding
+): String {
+    val variableName = DataBindingUtil.convertBrIdToString(variableId)
+    val className = binding::class.simpleName
+    return "Failed to find variable='$variableName' in the following databinding layout: $className"
+}

app/src/main/java/com/ftw/hometerview/adapter/RecyclerItemComparator.kt

@@ -0,0 +1,6 @@
+package com.ftw.hometerview.adapter
+
+interface RecyclerItemComparator {
+    fun isSameItem(other: Any): Boolean
+    fun isSameContent(other: Any): Boolean
+}

app/src/main/java/com/ftw/hometerview/adapter/RecyclerViewBinding.kt

@@ -0,0 +1,20 @@
+package com.ftw.hometerview.adapter
+
+import androidx.databinding.BindingAdapter
+import androidx.recyclerview.widget.RecyclerView
+
+@BindingAdapter("items")
+fun setRecyclerViewItems(
+    recyclerView: RecyclerView,
+    items: List<RecyclerItem>?
+) {
+    var adapter = (recyclerView.adapter as? DataBindingRecyclerAdapter)
+    if (adapter == null) {
+        adapter = DataBindingRecyclerAdapter()
+        recyclerView.adapter = adapter
+    }
+
+    adapter.submitList(
+        items.orEmpty()
+    )
+}

app/src/main/java/com/ftw/hometerview/adapter/RecyclweItem.kt

@@ -0,0 +1,9 @@
+package com.ftw.hometerview.adapter
+
+import androidx.annotation.LayoutRes
+
+data class RecyclerItem(
+    val data: Any,
+    @LayoutRes val layoutId: Int,
+    val variableId: Int
+)

app/src/main/java/com/ftw/hometerview/di/ui/ActivityViewModelModule.kt

@@ -2,6 +2,7 @@ package com.ftw.hometerview.di.ui
 
 import com.ftw.domain.usecase.login.LoginUseCase
 import com.ftw.hometerview.dispatcher.Dispatcher
+import com.ftw.hometerview.ui.onboardingresult.OnboardingResultViewModel
 import com.ftw.hometerview.ui.splash.SplashViewModel
 import dagger.Module
 import dagger.Provides
@@ -20,4 +21,11 @@ class ActivityViewModelModule {
     ): SplashViewModel {
         return SplashViewModel(dispatcher, loginUseCase)
     }
+    @Provides
+    @ActivityScoped
+    fun provideOnboardResultViewModel(
+        dispatcher: Dispatcher
+    ): OnboardingResultViewModel {
+        return OnboardingResultViewModel(dispatcher)
+    }
 }

app/src/main/java/com/ftw/hometerview/ui/onboardingresult/OnboardingResultActivity.kt

@@ -0,0 +1,54 @@
+package com.ftw.hometerview.ui.onboardingresult
+
+import android.content.Intent
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.util.Log
+import androidx.lifecycle.lifecycleScope
+import com.ftw.hometerview.databinding.ActivityOnboardingResultBinding
+import com.ftw.hometerview.ui.login.TAG
+import com.ftw.hometerview.ui.onboardingnonresult.OnboardingNonResultActivity
+import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class OnboardingResultActivity : AppCompatActivity() {
+
+    @Inject
+    lateinit var viewModel: OnboardingResultViewModel
+    private lateinit var binding: ActivityOnboardingResultBinding
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        binding = ActivityOnboardingResultBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        binding.searchButton.setText(intent.getStringExtra("search_word"))
+
+        binding.let {
+            it.lifecycleOwner = this
+            it.searchResultViewModel = this.viewModel
+        }
+        observe()
+    }
+
+    private fun observe() {
+        lifecycleScope.launch {
+            viewModel.clickState.collect { state ->
+                when (state) {
+                    OnboardingResultViewModel.State.OnClickEmpty -> noResult()
+                    else -> {}
+                }
+            }
+        }
+    }
+
+    private fun noResult() {
+        Log.d(TAG, "카카오계정공")
+        viewModel.noResultClicked()
+        val intent = Intent(this, OnboardingNonResultActivity::class.java)
+        startActivity(intent)    // TODO:  HometerviewActivity로 이동
+    }
+}

app/src/main/java/com/ftw/hometerview/ui/onboardingresult/OnboardingResultViewModel.kt

@@ -0,0 +1,83 @@
+package com.ftw.hometerview.ui.onboardingresult
+
+import android.util.Log
+import com.ftw.hometerview.BR
+import androidx.lifecycle.ViewModel
+import com.ftw.domain.entitiy.DEMO_RESULTS
+import com.ftw.domain.entitiy.SearchResult
+import com.ftw.hometerview.R
+import com.ftw.hometerview.adapter.RecyclerItem
+import com.ftw.hometerview.dispatcher.Dispatcher
+import com.ftw.hometerview.ui.login.TAG
+import com.ftw.hometerview.ui.onboardingresult.recyclemodel.SearchResultRecycleModel
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+
+class OnboardingResultViewModel(
+    private val dispatcher: Dispatcher
+) : ViewModel() {
+
+//    private val _recyclerItems = MutableLiveData<List<RecyclerItem>>()
+//    val recyclerItems: LiveData<List<RecyclerItem>> = _recyclerItems
+    private val _recyclerItems: MutableStateFlow<List<RecyclerItem>> = MutableStateFlow(listOf())
+    val recyclerItems: StateFlow<List<RecyclerItem>> get() = _recyclerItems.asStateFlow()
+    private val _clickState: MutableStateFlow<State> = MutableStateFlow(State.Nothing)
+    val clickState: StateFlow<State> get() = _clickState.asStateFlow()
+
+    sealed class State {
+        object OnClickEmpty : State()
+        object Failure : State()
+        object Loading : State()
+        object Nothing : State()
+    }
+
+    init {
+        _recyclerItems.value = loadDemoDatas()
+            .map { createSearchResultRecycleModel(it) }
+            .map { it.toRecyclerItem() }
+
+    }
+
+    private fun createSearchResultRecycleModel(searchResult: SearchResult): SearchResultRecycleModel {
+        return SearchResultRecycleModel(searchResult).apply {
+            itemClickHandler = { searchResult -> showClickMessage(searchResult) }
+        }
+    }
+
+    private fun showClickMessage(searchResult: SearchResult) {
+        //통신으로 받아온 정보를 State와 조합해서 사용하면 될 듯 함
+
+    }
+
+    // 1. startActivity와 BindingAdapter
+    // 2. success가 안 바뀌어....
+    fun noResultRecycleModel() {
+        Log.d(TAG, "카카오계정공123 ${_clickState.value}")
+        CoroutineScope(dispatcher.ui()).launch {
+            _clickState.value = State.Loading
+            // api 호출??
+            _clickState.value = State.OnClickEmpty
+
+        }
+
+    }
+
+    fun noResultClicked() {
+        CoroutineScope(dispatcher.ui()).launch {
+            _clickState.value = State.Nothing
+
+        }
+    }
+
+    private fun loadDemoDatas(): List<SearchResult> = DEMO_RESULTS
+
+}
+
+private fun SearchResultRecycleModel.toRecyclerItem() = RecyclerItem(
+    data = this, // SearchResultRecycleModel: searchResult(company, ..), onClickListener
+    layoutId = R.layout.list_item_search_result,
+    variableId = BR.searchResult
+)

app/src/main/java/com/ftw/hometerview/ui/onboardingresult/recyclemodel/SearchResultRecycleModel.kt

@@ -0,0 +1,13 @@
+package com.ftw.hometerview.ui.onboardingresult.recyclemodel
+
+import com.ftw.domain.entitiy.SearchResult
+
+class SearchResultRecycleModel(val result: SearchResult) {
+
+    lateinit var itemClickHandler: (result: SearchResult) -> Unit
+
+    fun onItemClick() {
+        itemClickHandler(result)
+    }
+
+}

app/src/main/res/drawable/ic_baseline_navigate_before_24.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#000000"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M15.41,7.41L14,6l-6,6 6,6 1.41,-1.41L10.83,12z"/>
+</vector>

app/src/main/res/drawable/ic_baseline_navigate_next_24.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#000000"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M10,6L8.59,7.41 13.17,12l-4.58,4.59L10,18l6,-6z"/>
+</vector>

app/src/main/res/drawable/ic_baseline_search_24.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#000000"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M15.5,14h-0.79l-0.28,-0.27C15.41,12.59 16,11.11 16,9.5 16,5.91 13.09,3 9.5,3S3,5.91 3,9.5 5.91,16 9.5,16c1.61,0 3.09,-0.59 4.23,-1.57l0.27,0.28v0.79l5,4.99L20.49,19l-4.99,-5zM9.5,14C7.01,14 5,11.99 5,9.5S7.01,5 9.5,5 14,7.01 14,9.5 11.99,14 9.5,14z"/>
+</vector>