ytRino

public void concatEager() {

    final TestSubscriber<List<String>> testSubscriber = new TestSubscriber<>();

    final long startTime = new Date().getTime();
    System.out.println("Start.");

    Observable.concatEager( //
        asyncObservable("uno", 4), //
        asyncObservable("dos", 3), //

ytRino

public abstract class RetrofitSingleSubscriber<T> extends SingleSubscriber<T> {

  public abstract void onHttpError(HttpException e);

  public abstract void onNonHttpError(Throwable e);

  @Override public void onError(Throwable error) {
    if (error instanceof HttpException) {
      onHttpError((HttpException) error);
    } else {

ytRino

    pulic static void logd(String format, Object... args) {
        Log.d(TAG, String.format(Locale.getDefault(), format, args));
    }

ytRino

    public static long copyFileStream(FileInputStream is, FileOutputStream os)
            throws IOException {
        FileChannel srcChannel = null;
        FileChannel destChannel = null;
        try {
            srcChannel = is.getChannel();
            destChannel = os.getChannel();
            return srcChannel.transferTo(0, srcChannel.size(), destChannel);
        } finally {

ytRino

形式言語理論 3 認識問題

定義とか

• Σ: アルファベット(有限集合)
• Ω = Σ ∪ { [, ]}
• Ω^* : Ω上の語全体からなる集合
• L_p : Ω上の言語 (括弧言語)
  • 基底 : Σの元と空語λ
  • 帰納ステップ : u,vがL_pの元ならば uv と [u] はL_pの元

ytRino

    public static Twitter getTwitter(Context ctx) {
        InputStream is = null;
        TwitterFactory tf;
        try {
            is = ctx.getResources().getAssets().open("twitter4j.properties");
            PropertyConfiguration conf = new PropertyConfiguration(is);
            tf = new TwitterFactory(conf);
        } catch (IOException e) {
            tf = new TwitterFactory();

ytRino

##ListView読み込み

• 件数指定
• 自動・手動
• 追加ボタン・オーバースクロール
• リストアイテム非同期読み込みとか

##AsyncTask

• 結果のコールバック

ytRino

FragmentStatePagerで持ってるfragmentはめくっていくとonStopが呼ばれるのでここでよしなにするとよい(かも

ytRino

    527     /**
    528      * Set the descendant focusability of this view group. This defines the relationship
    529      * between this view group and its descendants when looking for a view to
    530      * take focus in {@link #requestFocus(int, android.graphics.Rect)}.
    531      *
    532      * @param focusability one of {@link #FOCUS_BEFORE_DESCENDANTS}, {@link #FOCUS_AFTER_DESCENDANTS},
    533      *   {@link #FOCUS_BLOCK_DESCENDANTS}.
    534      */
    535     public void setDescendantFocusability(int focusability) {
    536         switch (focusability) {

ytRino

                text = client.execute(httpGet, new ResponseHandler<String>() {
                    @Override
                    public String handleResponse(HttpResponse resp)
                            throws ClientProtocolException, IOException {
                        if (resp.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
                            throw new IOException(resp.getStatusLine().getStatusCode() + "returned.");
                        }
                        HttpEntity entity = resp.getEntity();
                        if (entity != null) {
                            InputStream is = entity.getContent();