April 2014
Intermediate to advanced
260 pages
5h
Japanese
Content preview from 実践 Android Developer Tools
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186
11
章 ユーザーインターフェイスを操作する
図11-8 XMLエディタからRefactorメニューにアクセスする
11.2
XML
ファイルを直接編集する
187
図11-9 XMLエディタ: リファクタリングの内容を確認する画面
11.2.2.5
XML
の整形
レイアウトファイルは、あっという間に複雑になってしまう。さまざまなUI要素にそれぞれのパラ
メータを指定するために多くの異なる属性を使うことになる。XMLファイルは、属性の配置が統一的
でなく、順序がバラバラになっていると、特にたどりにくくなりがちだ。Windows/Linux では[Ctrl]-
[Shift]-[F]、OS Xでは[Command]-[Shift]-[F]を押せば、コードを素早く整形することができる。
このキーの組み合わせを押すと、自動的にタブのスペースが調整され、属性は定義済みの決まった
順序に並べられる。XMLを正しく整形すると、要素の関係が理解しやすくなり、書き換えなければな
らない属性が見つけやすくなる。
デフォルトの整形スタイルは、Android の公式ドキュメント、チュートリアル、
ソースコードで使
われている形に一致しているので、コードは標準に合致したものになる。システムは、どのタイプの
ファイルが編集されている ...
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