#29 [FEAT] memo dialog with button enable

app/src/main/java/com/gimangi/singleline_note/adapter/MemoListAdapter.kt

@@ -58,6 +58,12 @@ class MemoListAdapter() : RecyclerView.Adapter<MemoListAdapter.MemoHolder>() {
         }
     }
 
+    fun getNumSelected(): Int {
+        return dataList.filter {
+            it.selected.get() == true
+        }.size
+    }
+
     fun getDataList() = this.dataList
 
 }

app/src/main/java/com/gimangi/singleline_note/ui/main/MainActivity.kt

@@ -6,11 +6,13 @@ import android.util.Log
 import android.view.View
 import com.gimangi.singleline_note.R
 import com.gimangi.singleline_note.adapter.MemoListAdapter
+import com.gimangi.singleline_note.data.model.DialogData
 import com.gimangi.singleline_note.data.model.MemoPreviewData
 import com.gimangi.singleline_note.databinding.ActivityMainBinding
 import com.gimangi.singleline_note.ui.base.BaseActivity
 import com.gimangi.singleline_note.ui.memo.MemoCreateActivity
 import com.gimangi.singleline_note.ui.memo.MemoCreateViewModel
+import com.gimangi.singleline_note.ui.shared.SlnGenericDialog
 import org.koin.androidx.viewmodel.ext.android.viewModel
 import java.util.*
 
@@ -57,8 +59,14 @@ class MainActivity() :
                     if (mainViewModel.isEditMode.get() == true) {
                         // edit mode -> select
                         memoListAdapter.getDataList()[position].also {
-                            if (it.selected.get() != null)
-                                it.selected.set(!it.selected.get()!!)
+                            val selected = it.selected.get() ?: false
+                            it.selected.set(!selected)  // selected 토글
+
+                            // 선택된 메모가 존재하는지 파악 (버튼 비활성화)
+                            if (memoListAdapter.getNumSelected() > 0)
+                                mainViewModel.selectedMemoExist.set(true)
+                            else
+                                mainViewModel.selectedMemoExist.set(false)
                         }
                     } else {
                         // normal mode -> detail view
@@ -103,26 +111,45 @@ class MainActivity() :
 
         // 삭제 진행
         binding.btnDeleteConfirm.setOnClickListener {
-            // 삭제할 메모 리스트
-            val targets = memoListAdapter.getDataList().filter {
-                it.selected.get() == true
-            }.map {
-                it.memoId
-            }
 
-            // DB에 요청
-            mainViewModel.deleteMemoDataList(targets).observe(this) {
-                // 진행 완료
-                memoListAdapter.apply {
-                    // list adapter 에서도 제거
-                    getDataList().removeIf {
-                        it.selected.get() == true
-                    }
-                    notifyDataSetChanged()
+            // 삭제 확인 다이얼로그
+            SlnGenericDialog(this).show(
+                DialogData(
+                    title = getString(R.string.dialog_memo_delete_title),
+                    cancel = getString(R.string.dialog_memo_delete_cancel),
+                    confirm = getString(R.string.dialog_memo_delete_confirm)
+                    ),
+                onConfirm = {
+                    deleteSelectedMemo()
+                },
+                onCancel = {
                 }
-                switchEditMode(false)
-            }
+            )
+
+
+        }
+    }
 
+    private fun deleteSelectedMemo() {
+
+        // 삭제할 메모 리스트
+        val targets = memoListAdapter.getDataList().filter {
+            it.selected.get() == true
+        }.map {
+            it.memoId
+        }
+
+        // DB에 요청
+        mainViewModel.deleteMemoDataList(targets).observe(this) {
+            // 진행 완료
+            memoListAdapter.apply {
+                // list adapter 에서도 제거
+                getDataList().removeIf {
+                    it.selected.get() == true
+                }
+                notifyDataSetChanged()
+            }
+            switchEditMode(false)
         }
     }
 

app/src/main/java/com/gimangi/singleline_note/ui/main/MainViewModel.kt

@@ -13,6 +13,7 @@ import kotlinx.coroutines.launch
 class MainViewModel: ViewModel() {
 
     val isEditMode = ObservableField(false)
+    val selectedMemoExist = ObservableField(false)
     val searchResultData = MutableLiveData<String>()
 
     fun getMemoDataList(): MutableLiveData<List<MemoPreviewData>> {

app/src/main/java/com/gimangi/singleline_note/util/BindingAdapter.kt

@@ -37,10 +37,10 @@ object BindingAdapter {
 
     // 완료 버튼 색상 및 enable 결정
     @JvmStatic
-    @BindingAdapter("setButtonEnable")
-    fun setButtonEnable(button: Button, value: Boolean) {
+    @BindingAdapter("setButtonEnable", "setButtonDefaultColor")
+    fun setButtonEnable(button: Button, value: Boolean, defaultColor: Int) {
         if (value) {
-            button.setTextColor(ContextCompat.getColor(context!!, R.color.white))
+            button.setTextColor(ContextCompat.getColor(context!!, defaultColor))
             button.isEnabled = true
         } else {
             button.setTextColor(ContextCompat.getColor(context!!, R.color.gray4))

app/src/main/res/layout/activity_main.xml

@@ -4,6 +4,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto">
 
     <data>
+        <import type="com.gimangi.singleline_note.R"/>
         <variable
             name="viewModel"
             type="com.gimangi.singleline_note.ui.main.MainViewModel" />
@@ -155,6 +156,8 @@
                 android:textSize="12sp"
                 android:layout_marginEnd="26dp"
                 setVisible="@{viewModel.isEditMode}"
+                setButtonEnable="@{viewModel.selectedMemoExist}"
+                setButtonDefaultColor="@{R.color.red}"
                 app:layout_constraintBottom_toTopOf="@+id/et_search_memo"
                 app:layout_constraintEnd_toEndOf="parent"
                 app:layout_constraintTop_toTopOf="parent" />

app/src/main/res/layout/activity_memo_create.xml

@@ -3,6 +3,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
     <data>
+        <import type="com.gimangi.singleline_note.R"/>
         <variable
             name="viewModel"
             type="com.gimangi.singleline_note.ui.memo.MemoCreateViewModel" />
@@ -62,6 +63,7 @@
                 android:minHeight="0dp"
                 android:layout_marginEnd="20dp"
                 setButtonEnable="@{viewModel.allTextNotEmpty}"
+                setButtonDefaultColor="@{R.color.white}"
                 app:layout_constraintBottom_toBottomOf="parent"
                 app:layout_constraintEnd_toEndOf="parent"
                 app:layout_constraintTop_toTopOf="parent" />

app/src/main/res/values/strings.xml

@@ -8,6 +8,11 @@
     <string name="memo_delete_confirm">삭제</string>
     <string name="memo_edit_guide">삭제할 메모를 선택해주세요</string>
 
+    <!-- dialog_delete memo -->
+    <string name="dialog_memo_delete_title">선택된 메모를 삭제하시겠습니까?</string>
+    <string name="dialog_memo_delete_confirm">삭제</string>
+    <string name="dialog_memo_delete_cancel">취소</string>
+
     <string name="memo_status_items">항목</string>
 
     <!-- memo create -->