April 2014
Intermediate to advanced
260 pages
5h
Japanese
Content preview from 実践 Android Developer Tools
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13.2
Hierarchy Viewer
215
LayoutView（ ）
このウィンドウでは、ビューの骨組みをレンダリングする。ここで個別のコンポーネントを
クリックすると、中央のTree Viewでそれが表示される。
図13-3 ツールに階層構造がロードされたところ
13.2.4
ビューの情報を集める
UIについての詳細な情報を集めるためのメインツールは、中央のTree View（ ）である。詳細情
報を得るための出発点は、階層構造のなかでビューをクリックし、そのビューの図13-4のような詳細
情報を表示することだ。ここでできることを1 つずつ掘り下げていこう。
ノードをクリックしたときに表示される内容には、ビュー（および適切なときはその子たち）のレン
ダリング特性の詳細情報が含まれている。この表示には、すばらしい情報がたくさん含まれているの
で、少し時間を割いて値の意味を説明していきたい。
216
13
章 ユーザーインターフェイスを最適化する
図13-4 Hierarchy View: Tree View
13.2.4.1
計測情報
中央部（図13-5参照）には、2 つの重要項目が含まれている。
●
このコンテナに含まれているビューの数。この例では24となっている。このビューがたまたま
木構造の主要ノ ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.