April 2014
Intermediate to advanced
260 pages
5h
Japanese
Content preview from 実践 Android Developer Tools
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6.5
レイアウトデザイナとレイアウトプレビュー
85
図6-10 Androidレイアウトデザイナ
Android Studioのレイアウトデザイナは、レイアウトサーフェスにコントロールをドラッグドロッ
プして、レイアウトのプロトタイプを素早く簡単に作れる。パレットからコントロールを選んでレイア
ウトにドラッグしてみよう。コントロールを配置したら、図6-10に示すように、コントロールを選択
して右側でさまざまなプロパティを編集することができる。レイアウトデザイナは、あなたが作った
レイアウトを表現するXMLコードを自動的に作ってくれる。コンポーネントツリーは、レイアウトの
構成を階層構造で示す。
特定のコントロールのXMLを見たいときには、デザイナでそれを選択してOS X なら[Command]-
[B]、Windows/Linuxでは[Ctrl]-[B]を押す。右クリックして「Go To Declaration」を選んでもよい。
すると、レイアウトデザイナの「
Text」タブが開き、XML のコントロールを定義している部分が示さ
れる。
レイアウトデザイナでは、エミュレートしたいさまざまなデバイス、テーマ、APIレベル、向きを
選択できる。デザイナのさまざまなオプションは非常に強力なツールなので、熟読して使うことを強
くお勧めする。
グラフィカルエディタが好きなら、レイアウトデザイナは手早くユーザーインターフェイスを作り
上げられてすばらしい。しかし、できる限りきっちりとした定義を作りたいという場合には、
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.