android.supportからandroidxに変更した際の障害。

こんばんは。

layoutについて、以下に変更した結果取得ができなくなったのですが、おわかりになりますでしょうか。
原因はlayoutだと思うのですが、、
変更点は※をつけております。
ご教示いただければ幸いです！

以下が取得できなくなったと思うのですが、エラーが出てなく...
recycler.setHasFixedSize(true)
recycler.layoutManager = LinearLayoutManager(this)
recycler.addItemDecoration(DividerItemDecoration(this, DividerItemDecoration.VERTICAL))
adapter = ItemRecyclerViewAdapter(ArrayList(), ArrayList(), this)
recycler.adapter = adapter

xml
1<android.support.design.widget.CoordinatorLayout
2
3    <android.support.design.widget.FloatingActionButton
4
5</androidx.coordinatorlayout.widget.CoordinatorLayout>
6
7---------------------------------------????------------------------
8<?xml version="1.0" encoding="utf-8"?>
9※<androidx.coordinatorlayout.widget.CoordinatorLayout
10    xmlns:android="http://schemas.android.com/apk/res/android"
11    xmlns:tools="http://schemas.android.com/tools"
12    xmlns:app="http://schemas.android.com/apk/res-auto"
13    android:layout_width="match_parent"
14    android:layout_height="match_parent"
15    tools:context=".MainActivity" android:id="@+id/context_view">
16
17 ※<com.google.android.material.floatingactionbutton.FloatingActionButton
18        android:layout_width="wrap_content"
19        android:layout_height="wrap_content"
20        android:clickable="true" app:srcCompat="@drawable/ic_add_black_24dp"
21        android:id="@+id/fab" android:layout_gravity="bottom|end" android:layout_marginEnd="16dp"
22        android:layout_marginBottom="16dp"/>
23    <androidx.recyclerview.widget.RecyclerView
24        android:layout_width="match_parent"
25        android:layout_height="match_parent" android:layout_marginTop="8dp"
26        android:layout_marginStart="8dp" android:layout_marginEnd="8dp"
27        android:layout_marginBottom="8dp"
28        android:id="@+id/recycler"/>
29
30※</androidx.coordinatorlayout.widget.CoordinatorLayout>

kt
1
2class MainActivity : AppCompatActivity() {
3
4    private val createNewTodoKey: Int = 1
5    private lateinit var realm: Realm
6    private lateinit var adapter: ItemRecyclerViewAdapter
7
8    override fun onCreate(savedInstanceState: Bundle?) {
9        super.onCreate(savedInstanceState)
10        setContentView(R.layout.activity_main)
11
12        realm = Realm.getDefaultInstance()
13
14        // RecyclerViewの初期化
15        initRecyclerView()
16
17        // ドラッグ&ドロップとスワイプの処理
18        val itemTouchHelper = ItemTouchHelper(object : ItemTouchHelper.SimpleCallback(ItemTouchHelper.UP or ItemTouchHelper.DOWN
19            , ItemTouchHelper.LEFT or ItemTouchHelper.RIGHT) {
20
21            override fun onMove(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder, target: RecyclerView.ViewHolder): Boolean {
22                val fromPosition = viewHolder.adapterPosition
23                val toPosition = target.adapterPosition
24
25                adapter.insertItem(fromPosition, toPosition)
26                recycler.adapter?.notifyItemMoved(fromPosition, toPosition)
27
28                moveItemInRealm(fromPosition + 1, toPosition + 1)
29
30                return true
31            }
32
33            override fun onChildDraw(
34                c: Canvas,
35                recyclerView: RecyclerView,
36                viewHolder: RecyclerView.ViewHolder,
37                dX: Float,
38                dY: Float,
39                actionState: Int,
40                isCurrentlyActive: Boolean
41            ) {
42
43
44                val background = ColorDrawable()
45                val itemView = viewHolder.itemView
46                val isLeftDirection = dX < 0
47                val deleteIcon = getDrawable(R.drawable.ic_delete_white_24dp)
48
49                background.color = Color.parseColor("#f44336")
50
51                if (isLeftDirection) {
52                    background.setBounds(itemView.right + dX.toInt(), itemView.top, itemView.right, itemView.bottom)
53                } else {
54                    background.setBounds(itemView.left, itemView.top, itemView.left + dX.toInt(), itemView.bottom)
55                }
56                background.draw(c)
57
58               
59                if (deleteIcon != null) {
60                    val itemHeight = itemView.bottom - itemView.top
61                    val iconWidth = deleteIcon.intrinsicWidth
62                    val iconHeight = deleteIcon.intrinsicHeight
63
64                    val iconTop = itemView.top + (itemHeight - iconHeight) / 2
65                    val iconBottom = iconTop + iconHeight
66                    if (isLeftDirection) {
67                        val iconRight = itemView.right - (itemHeight - iconHeight) / 2
68                        val iconLeft = iconRight - iconWidth
69                        deleteIcon.setBounds(iconLeft, iconTop, iconRight, iconBottom)
70                        deleteIcon.draw(c)
71
72                    } else {
73                        val iconLeft = itemView.left + (itemHeight - iconHeight) / 2
74                        val iconRight = iconLeft + iconWidth
75                        deleteIcon.setBounds(iconLeft, iconTop, iconRight, iconBottom)
76                        deleteIcon.draw(c)
77                    }
78                }
79
80                super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive)
81
82            }
83
84            override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) {
85                val position = viewHolder.adapterPosition
86
87                // 一時保存
88                val tmpItem = adapter.getItem(position)
89                val tmpIsChecked = adapter.getIsChecked(position)
90
91                adapter.removeItem(position)
92                recycler.adapter?.notifyItemRemoved(position)
93
94               
95                var isCancelled = false
96                Snackbar
97                    .make(context_view, R.string.item_removed_message, Snackbar.LENGTH_LONG)
98                    .addCallback(object : BaseTransientBottomBar.BaseCallback<Snackbar>() {
99                        override fun onDismissed(transientBottomBar: Snackbar?, event: Int) {
100                            super.onDismissed(transientBottomBar, event)
101                            if (!isCancelled) {
102                                removeItemFromRealm(position + 1)
103                            }
104                        }
105                    })
106                    .setAction(R.string.item_undo_message, View.OnClickListener {
107                        adapter.insertNewItem(tmpItem, tmpIsChecked, position)
108                        isCancelled = true
109                    })
110                    .show()
111            }
112
113        })
114        itemTouchHelper.attachToRecyclerView(recycler)
115
116        fab.setOnClickListener {
117            val intent = Intent(this, EditToDO::class.java)
118            startActivityForResult(intent, createNewTodoKey)
119        }
120
121    }
122
123    override fun onResume() {
124        super.onResume()
125        val todoLists = realm.where(ToDoRealm::class.java).sort("id", Sort.ASCENDING).findAll()
126        adapter.clearAllItems()
127        todoLists.forEach {
128            adapter.addItem(it.task, it.isChecked)
129        }
130    }
131
132    override fun onDestroy() {
133        super.onDestroy()
134        realm.close()
135    }
136
137    override fun onActivityResult(requestCode: Int, resultCode: Int, intent: Intent?) {
138        super.onActivityResult(requestCode, resultCode, intent)
139
140        if (resultCode == Activity.RESULT_OK &&
141            requestCode == createNewTodoKey &&
142            intent != null) {
143
144            val todoBody = intent.extras?.getString("key1").toString()
145            if (todoBody == "") return
146
147            // RecyclerViewへ追加
148            adapter.addItem(todoBody, false)
149
150            // realmへ保存
151            addNewItemToRealm(todoBody)
152        }
153    }
154
155    private fun addNewItemToRealm(body: String) {
156        realm.executeTransaction {
157            val todoObj = realm.createObject(ToDoRealm::class.java)
158            todoObj.task = body
159            todoObj.id = createNewId()
160        }
161    }
162
163    private fun removeItemFromRealm(id: Int) {
164        val itemList =  realm.where(ToDoRealm::class.java).sort("id", Sort.DESCENDING)
165        val maxId = itemList.findFirst()!!.id
166
167        // データの削除
168        val item = itemList.equalTo("id", id).findAll()
169        realm.executeTransaction {
170            item.deleteFromRealm(0)
171        }
172
173        val updateItemList =  realm.where(ToDoRealm::class.java).sort("id", Sort.ASCENDING).findAll()
174   
175        if (maxId == id) {return}
176        else {
177            realm.executeTransaction {
178                for (index in (id + 1)..maxId) {    
179                   updateItemList[index - 2]!!.id -= 1     
180                }
181            }
182        }
183    }
184
185    private fun moveItemInRealm(fromId: Int, toId: Int) {
186        val itemList = realm.where(ToDoRealm::class.java).sort("id", Sort.ASCENDING).findAll()
187
188        realm.executeTransaction {
189            val tmpTask = itemList[toId - 1]!!.task
190            itemList[toId - 1]!!.task = itemList[fromId - 1]!!.task
191            itemList[fromId - 1]!!.task = tmpTask
192        }
193    }
194
195    private fun createNewId(): Int {
196        val id: Int =  realm.where(ToDoRealm::class.java).sort("id", Sort.DESCENDING).findFirst()?.id ?: 0
197        return id + 1
198    }
199
200    private fun initRecyclerView() {
201        recycler.setHasFixedSize(true)
202        recycler.layoutManager = LinearLayoutManager(this)
203        recycler.addItemDecoration(DividerItemDecoration(this, DividerItemDecoration.VERTICAL))
204        adapter = ItemRecyclerViewAdapter(ArrayList(), ArrayList(), this)
205        recycler.adapter = adapter
206    }
207
208}

jimbe

2020/03/22 11:52

> 以下に変更した結果取得ができなくなったのですが打ち消し線になっておりません. コードを囲む ``` の右には, ファイル名では無く言語名("xml"や"kotlin") をお書きください. 何を目的にどう変更してどの個所で何が取得できなくなったのか, 「コードを見ろ」では無く, 言葉で説明してください. また, 件名として android studio と layout は関係ありませんし, ご質問が何なのか件名から想像つきません. 件名はご質問内容の要約でお願い致します.