質問編集履歴

情報不足だったため加筆。

2018/10/29 03:06

投稿

sezaki_H

スコア41

test CHANGED Viewed

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test CHANGED Viewed

@@ -49,3 +49,441 @@
                 };
 ```
+全体コード
+```c#
+using Android.App;
+using Android.Widget;
+using Android.OS;
+using System.Collections.Generic;
+using Android.Content;
+using PCLStorage;
+using Android.Runtime;
+using Temo1.Resources.layout;
+using Android.Views;
+using static Android.Resource;
+namespace Temo1
+{
+    [Activity(Label = "Temo1", MainLauncher = true)]
+    public class MainActivity : Activity
+    {
+        protected override void OnCreate(Bundle savedInstanceState)
+        {
+            base.OnCreate(savedInstanceState);
+            // Set our view from the "main" layout resource
+            SetContentView(Resource.Layout.Main);
+            Button memobutton = FindViewById<Button>(Resource.Id.button1);
+            Button notebutton = FindViewById<Button>(Resource.Id.notebutton);
+            ExpandableListView memolist = FindViewById<ExpandableListView>(Resource.Id.expandableListView1);
+            string[] filename = new string[100];
+            int n;
+            var localFolder = FileSystem.Current.LocalStorage;
+            var files = localFolder.GetFilesAsync().Result;
+            //親リストgroupList子リストchildList
+            List<IDictionary<string, object>> groupList = new List<IDictionary<string, object>>();
+            List<IList<IDictionary<string, object>>> childList = new List<IList<IDictionary<string, object>>>();
+            //デフォルトのグループ"全て"
+            JavaDictionary<string, object> groupElement = new JavaDictionary<string, object>();
+            groupElement.Add("GROUP_TITLE", "ALL");
+            groupList.Add(groupElement);
+            //子リスト用の文字列(ファイル名)を配列に用意
+            n = 0;
+            foreach (var file in files)
+            {
+                var fn = file.Name;
+                fn = fn.Remove(fn.Length - 4);//拡張子を表示しないように末尾を削除
+                filename[n] = fn;//配列にファイル名を格納
+                n++;
+            }
+            JavaList<IDictionary<string, object>> childElements = new JavaList<IDictionary<string, object>>();
+            for (int j = 0; j <= n - 1; j++)
+            {
+                JavaDictionary<string, object> child = new JavaDictionary<string, object>();
+                child.Add("CHILD_TITLE", filename[j]);
+                childElements.Add(child);
+            }
+            childList.Add(childElements);
+            SimpleExpandableListAdapter adapter = new SimpleExpandableListAdapter(
+                                          this,
+                                          groupList,
+                                          Android.Resource.Layout.SimpleExpandableListItem1,
+                                          new string[] { "GROUPE_TITLE" },
+                                          new int[] { Android.Resource.Id.Text1 },
+                                          childList,
+                                          Android.Resource.Layout.SimpleExpandableListItem2,
+                                          new string[] { "CHILD_TITLE" },
+                                          new int[] { Android.Resource.Id.Text2 }
+                                          );
+            memolist.SetAdapter(adapter);
+            //親リスト追加
+            //リスト名入力ダイアログ
+            notebutton.Click += (_, __) =>
+            {
+                var layout = new LinearLayout(this) { Orientation = Orientation.Vertical };
+                layout.SetGravity(GravityFlags.Left);
+                var notename = new EditText(this);
+                notename.SetMaxLines(1);
+                layout.AddView(new TextView(this) { Text = "ノート名" });
+                layout.AddView(notename);
+                var dlg = new AlertDialog.Builder(this);
+                dlg.SetTitle("ノートの名前を入力してください。");
+                dlg.SetView(layout); //<=作成したビューを指定
+                dlg.SetPositiveButton("OK", (s, a) =>
+                {
+                    Toast.MakeText(this, notename.Text, ToastLength.Short).Show();
+                    if (!string.IsNullOrEmpty(notename.Text))
+                    {
+                        var newGroupElement = new JavaDictionary<string, object>();
+                        newGroupElement.Add("GROUPE_LIST", notename.Text);
+                        groupList.Add(newGroupElement);
+                        adapter.NotifyDataSetChanged();
+                    }
+                    else
+                    {
+                        //　未入力エラー
+                    }
+                });
+                dlg.Create().Show();
+                };
+            //メモ作成画面へ遷移
+            memobutton.Click += (_, __) =>
+            {
+                var intent = new Intent(this, typeof(memocreate));
+                StartActivity(intent);
+            };
+            //リストアイテムがクリックされたらテキスト編集に遷移
+            memolist.ChildClick+= async (sender, e) =>
+            {
+                var parent = (ExpandableListView)e.Parent;
+                var packedPosition = parent.GetExpandableListPosition(e.ChildPosition);
+                var groupPosition = ExpandableListView.GetPackedPositionGroup(packedPosition);
+                var childPosition = ExpandableListView.GetPackedPositionChild(packedPosition);
+                var type = ExpandableListView.GetPackedPositionType(packedPosition);
+                if (type == PackedPositionType.Child)
+                {
+                    var item = (IDictionary<string, object>)parent.ExpandableListAdapter.GetChild(groupPosition, childPosition+1);
+                    var clickfile = item["CHILD_TITLE"].ToString();
+                    //そのファイルのテキストを取得
+                    IFolder rootFolder = FileSystem.Current.LocalStorage;
+                    IFile file = await rootFolder.GetFileAsync(clickfile + ".txt");
+                    string saveddata = await file.ReadAllTextAsync();
+                    var intent = new Intent(this, typeof(memoedit));
+                    intent.PutExtra("clickfile", clickfile);
+                    intent.PutExtra("Data", saveddata);
+                    StartActivity(intent);
+                }
+            };
+                //長押しされたアイテムを削除
+                memolist.ItemLongClick += async (sender, e) =>
+            {
+                var parent = (ExpandableListView)e.Parent;
+                var packedPosition = parent.GetExpandableListPosition(e.Position);
+                var groupPosition = ExpandableListView.GetPackedPositionGroup(packedPosition);
+                var childPosition = ExpandableListView.GetPackedPositionChild(packedPosition);
+                var type = ExpandableListView.GetPackedPositionType(packedPosition);
+                if (type == PackedPositionType.Child)
+                {
+                    var item = (IDictionary<string, object>)parent.ExpandableListAdapter.GetChild(groupPosition, childPosition);
+                    var deletefile = item["CHILD_TITLE"].ToString();
+                    //adapterから削除し更新
+                    childList[groupPosition].Remove(item);
+                    adapter.NotifyDataSetChanged();
+                    //元ファイル削除
+                    IFolder rootFolder = FileSystem.Current.LocalStorage;
+                    IFile file = await rootFolder.GetFileAsync(deletefile + ".txt");
+                    await file.DeleteAsync();
+                }
+            };
+        }
+    }
+}
+```