Week2 #4
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,15 @@ | ||
| package org.android.go.sopt | ||
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| import android.app.Application | ||
| import org.android.go.sopt.util.UserSharedPreferences | ||
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| class SoptApplication : Application() { | ||
| companion object{ | ||
| lateinit var prefs: UserSharedPreferences | ||
| } | ||
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| override fun onCreate() { | ||
| prefs = UserSharedPreferences(this) | ||
|
There was a problem hiding this comment. sharedPreferences 를 왜 사용하며, 앱 구동 및 종료시 메모리에서 어떻게 동작하는지, There was a problem hiding this comment. 넵 한번 공부해보도록 하겠습니다!!! |
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| super.onCreate() | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,9 @@ | ||
| package org.android.go.sopt.data | ||
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| import androidx.annotation.DrawableRes | ||
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| data class Dog( | ||
| val name: String, | ||
| @DrawableRes val image: Int, | ||
| val size: String | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,32 @@ | ||
| package org.android.go.sopt.presentation.main.gallery | ||
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| import android.os.Bundle | ||
| import androidx.fragment.app.Fragment | ||
| import android.view.LayoutInflater | ||
| import android.view.View | ||
| import android.view.ViewGroup | ||
| import org.android.go.sopt.databinding.FragmentGalleryBinding | ||
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| class GalleryFragment : Fragment() { | ||
| private var _binding: FragmentGalleryBinding? = null | ||
| private val binding: FragmentGalleryBinding | ||
| get() = requireNotNull(_binding) { "앗!_binding이 null이다!" } | ||
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| override fun onCreateView( | ||
| inflater: LayoutInflater, | ||
| container: ViewGroup?, | ||
| savedInstanceState: Bundle? | ||
| ): View { | ||
| _binding = FragmentGalleryBinding.inflate(inflater, container, false) | ||
| return binding.root | ||
| } | ||
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| override fun onViewCreated(view: View, savedInstanceState: Bundle?) { | ||
| super.onViewCreated(view, savedInstanceState) | ||
| } | ||
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| override fun onDestroy() { | ||
| super.onDestroy() | ||
| _binding = null | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,42 @@ | ||
| package org.android.go.sopt.presentation.main.home | ||
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| import android.content.Context | ||
| import android.view.LayoutInflater | ||
| import android.view.ViewGroup | ||
| import androidx.recyclerview.widget.DiffUtil | ||
| import androidx.recyclerview.widget.ListAdapter | ||
| import androidx.recyclerview.widget.RecyclerView | ||
| import org.android.go.sopt.data.Dog | ||
| import org.android.go.sopt.databinding.ItemDogBinding | ||
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| class DogAdapter(context: Context) : ListAdapter<Dog, DogAdapter.DogViewHolder>(DogDiffCallback()) { | ||
| private val inflater by lazy { LayoutInflater.from(context) } | ||
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| class DogViewHolder(private val binding: ItemDogBinding) : | ||
| RecyclerView.ViewHolder(binding.root) { | ||
| fun onBind(dog: Dog) { | ||
| binding.ivDogImage.setImageDrawable(binding.root.context.getDrawable(dog.image)) | ||
| binding.tvDogName.text = dog.name | ||
| binding.tvDogSize.text = dog.size | ||
| } | ||
| } | ||
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| override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): DogViewHolder { | ||
| val binding = ItemDogBinding.inflate(inflater, parent, false) | ||
| return DogViewHolder(binding) | ||
| } | ||
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| override fun onBindViewHolder(holder: DogViewHolder, position: Int) { | ||
| holder.onBind(getItem(position)) | ||
| } | ||
| } | ||
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| class DogDiffCallback : DiffUtil.ItemCallback<Dog>() { | ||
| override fun areItemsTheSame(oldItem: Dog, newItem: Dog): Boolean { | ||
| return oldItem.name == newItem.name | ||
| } | ||
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| override fun areContentsTheSame(oldItem: Dog, newItem: Dog): Boolean { | ||
| return oldItem == newItem | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| package org.android.go.sopt.presentation.main.home | ||
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| import android.os.Bundle | ||
| import androidx.fragment.app.Fragment | ||
| import android.view.LayoutInflater | ||
| import android.view.View | ||
| import android.view.ViewGroup | ||
| import androidx.fragment.app.viewModels | ||
| import androidx.recyclerview.widget.ConcatAdapter | ||
| import org.android.go.sopt.databinding.FragmentHomeBinding | ||
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| class HomeFragment : Fragment() { | ||
| private var _binding: FragmentHomeBinding? = null | ||
| private val binding: FragmentHomeBinding | ||
| get() = requireNotNull(_binding) { "앗!_binding이 null이다!" } | ||
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| private val viewModel by viewModels<HomeViewModel>() | ||
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| override fun onCreateView( | ||
| inflater: LayoutInflater, | ||
| container: ViewGroup?, | ||
| savedInstanceState: Bundle? | ||
| ): View { | ||
| _binding = FragmentHomeBinding.inflate(inflater, container, false) | ||
| return binding.root | ||
| } | ||
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| override fun onViewCreated(view: View, savedInstanceState: Bundle?) { | ||
| super.onViewCreated(view, savedInstanceState) | ||
| val titleAdapter = TitleAdapter(requireContext()) | ||
| val dogAdapter = DogAdapter(requireContext()) | ||
| dogAdapter.submitList(viewModel.mockDogList) | ||
| binding.rvHomeDog.adapter = ConcatAdapter(titleAdapter, dogAdapter) | ||
| } | ||
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| override fun onDestroy() { | ||
| super.onDestroy() | ||
| _binding = null | ||
| } | ||
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| fun scrollToTop() { | ||
| binding.rvHomeDog.smoothScrollToPosition(0) | ||
| } | ||
| } |
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companion object 는 kotlin 에서 주로 최하단에 위치합니다
(위에둬도 상관은 없지만..ㅎ)
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넵! 수정하겠습니다!