質問編集履歴

修正

2019/12/21 05:28

投稿

kashikoma

スコア8

test CHANGED Viewed

File without changes

test CHANGED Viewed

@@ -387,127 +387,3 @@
 }
 ```
-MemoAdapter(修正後)
----
-```ここに言語を入力
-public class MemoAdapter extends RealmRecyclerViewAdapter<Memo, MemoAdapter.MemoViewHolder> {
-    private OrderedRealmCollection<Memo> mDataset;
-    private MemoListActivity memoListActivity;
-    private static final String TAG = "MemoAdapter";
-    //フラグメント遷移処理メソッドを持つアクティビティを設定
-    void setActivity(MemoListActivity mActivity) {
-        Log.d(TAG, "setActivity1 = " + memoListActivity);
-        this.memoListActivity = mActivity;
-        Log.d(TAG, "setActivity2 = " + memoListActivity);
-    }
-    MemoAdapter(OrderedRealmCollection<Memo> memoDataset) {
-        super(memoDataset, true);
-        this.mDataset = memoDataset;
-        setHasStableIds(true);
-    }
-    @Override
-    public MemoViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
-        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.listitem_memolist, parent, false);
-        return new MemoViewHolder(view);
-    }
-    @Override
-    public void onBindViewHolder(final MemoViewHolder holder, final int position){
-        final Memo obj = getItem(position);
-        holder.memo.setText(obj.getMemo());
-        holder.id.setText(obj.getId());
-        // アイテムクリックされたら編集画面へ
-        holder.itemView.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                final String id = obj.getId();
-                Log.d(TAG, "id onClick itemView = " + id);
-                Log.d(TAG, "onClick itemView = " + memoListActivity);
-                memoListActivity.replaceToEditMemoFragment(id);
-            }
-        });
-    }
-    @Override
-    public int getItemCount() {
-        return mDataset.size();
-    }
-    static class MemoViewHolder extends RecyclerView.ViewHolder {
-        TextView memo;
-        TextView id;
-        MemoViewHolder(View view) {
-            super(view);
-            memo = view.findViewById(R.id.memoContent);
-            id = view.findViewById(R.id.memoId);
-        }
-    }
-}
-```

コードを追記

2019/12/21 05:28

投稿

kashikoma

スコア8

test CHANGED Viewed

File without changes

test CHANGED Viewed

@@ -387,3 +387,127 @@
 }
 ```
+MemoAdapter(修正後)
+---
+```ここに言語を入力
+public class MemoAdapter extends RealmRecyclerViewAdapter<Memo, MemoAdapter.MemoViewHolder> {
+    private OrderedRealmCollection<Memo> mDataset;
+    private MemoListActivity memoListActivity;
+    private static final String TAG = "MemoAdapter";
+    //フラグメント遷移処理メソッドを持つアクティビティを設定
+    void setActivity(MemoListActivity mActivity) {
+        Log.d(TAG, "setActivity1 = " + memoListActivity);
+        this.memoListActivity = mActivity;
+        Log.d(TAG, "setActivity2 = " + memoListActivity);
+    }
+    MemoAdapter(OrderedRealmCollection<Memo> memoDataset) {
+        super(memoDataset, true);
+        this.mDataset = memoDataset;
+        setHasStableIds(true);
+    }
+    @Override
+    public MemoViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.listitem_memolist, parent, false);
+        return new MemoViewHolder(view);
+    }
+    @Override
+    public void onBindViewHolder(final MemoViewHolder holder, final int position){
+        final Memo obj = getItem(position);
+        holder.memo.setText(obj.getMemo());
+        holder.id.setText(obj.getId());
+        // アイテムクリックされたら編集画面へ
+        holder.itemView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                final String id = obj.getId();
+                Log.d(TAG, "id onClick itemView = " + id);
+                Log.d(TAG, "onClick itemView = " + memoListActivity);
+                memoListActivity.replaceToEditMemoFragment(id);
+            }
+        });
+    }
+    @Override
+    public int getItemCount() {
+        return mDataset.size();
+    }
+    static class MemoViewHolder extends RecyclerView.ViewHolder {
+        TextView memo;
+        TextView id;
+        MemoViewHolder(View view) {
+            super(view);
+            memo = view.findViewById(R.id.memoContent);
+            id = view.findViewById(R.id.memoId);
+        }
+    }
+}
+```

関連コード追記

2019/12/21 05:22

投稿

kashikoma

スコア8

test CHANGED Viewed

File without changes

test CHANGED Viewed

@@ -167,3 +167,223 @@
 ```
+関連コード
+---
+・メインアクティビティ
+``````ここに言語を入力
+public class MemoListActivity extends AppCompatActivity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_memolist);
+        if (findViewById(R.id.container) != null) {
+            if (savedInstanceState != null) {return;}
+            TaskListFragment firstFragment = new TaskListFragment();
+            firstFragment.setArguments(getIntent().getExtras());
+            getSupportFragmentManager().beginTransaction().add(R.id.container, firstFragment).commit();
+        }
+        //ボトムナビゲーション
+        BottomNavigationView bottomNavigationView = (BottomNavigationView)
+            findViewById(R.id.bottom_navigation);
+            bottomNavigationView.setOnNavigationItemSelectedListener(
+                    new BottomNavigationView.OnNavigationItemSelectedListener() {
+                        @Override
+                        public boolean onNavigationItemSelected(@NonNull MenuItem item) {
+                            switch (item.getItemId()) {
+                                case R.id.action_memo: {
+                                    MemoListFragment fragment = MemoListFragment.newInstance();
+                                    getSupportFragmentManager().beginTransaction().replace(R.id.container, fragment).commit();
+                                    return true;
+                                }
+                                case R.id.action_task: {
+                                    ...
+                                }
+                            }
+                            return false;
+                        }
+                    });
+        //Realm初期化・アプリ起動時のActivityに記述
+        Realm.init(this);
+        RealmConfiguration config = new RealmConfiguration.Builder().build();
+        Realm.setDefaultConfiguration(config);
+    }
+}
+```
+・containerに表示されるフラグメント(onCreateView内でアダプタがnewされている)
+```ここに言語を入力
+public class MemoListFragment extends Fragment {
+    private FloatingActionButton fab;
+    private MemoListActivity memoListActivity;
+    private RecyclerView recyclerView;
+    private Realm realm;
+    private MemoAdapter adapter;
+    public static MemoListFragment newInstance(){
+        MemoListFragment f = new MemoListFragment();
+        Bundle args = new Bundle();
+        f.setArguments(args);
+        return f;
+    }
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.fragment_memo_list, container, false);
+        fab = view.findViewById(R.id.intentEditMemo);
+        realm = Realm.getDefaultInstance(); // Realmをインスタンス化
+        final RealmResults<Memo> result = realm.where(Memo.class).findAll() // テーブルから全レコード取得
+                .sort("id", Sort.DESCENDING);// 降順にソート
+        adapter = new MemoAdapter(result); // その結果をアダプターに渡す
+        recyclerView = view.findViewById(R.id.memoList);
+        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
+        recyclerView.setAdapter(adapter);
+        recyclerView.setHasFixedSize(true);
+        recyclerView.addItemDecoration(new DividerItemDecoration(getContext(), DividerItemDecoration.VERTICAL));
+        return view;
+    }
+    @Override
+    public void onStart() {
+        super.onStart();
+        //新規作成ボタン
+        fab.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Bundle bundle = new Bundle();
+                bundle.putString("id", "");
+                EditMemoFragment fragment = new EditMemoFragment();
+                fragment.setArguments(bundle);
+                FragmentTransaction transaction = getFragmentManager().beginTransaction();
+                transaction.replace(R.id.container, fragment.newInstance(),"EditMemoFragment").commit();
+            }
+        });
+    }
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        recyclerView.setAdapter(null);
+        realm.close();
+    }
+}
+```