Android開発で、ネットワーク通信周りの処理を簡単に実装できるすごく便利なライブラリ。JSONの取得とか、画像の非同期取得とか簡単に実装できる。 ListViewの実装パターン ListView使う時はviewのインスタンスを再利用したり、ViewHolder使うのが定石になってます。 adapter#getView()はだいたいこんな実装 private class ViewHolder { ImageView imageView; TextView textView; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView == null) { convertView = mInflater.infla
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