April 2014
Intermediate to advanced
260 pages
5h
Japanese
Content preview from 実践 Android Developer Tools
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173
11
章
ユーザーインターフェイスを操作する
モバイルアプリケーションのユーザーインターフェイス（UI）は重要だ。Androidは広く普及してい
るだけに、さまざまなターゲットデバイスでソフトウェアを快適に動作させなければならない。一般
に、サポートするデバイスの範囲が広がれば広がるほど、期待できる顧客ベースも大きくなる。
ほぼすべてのモバイルアプリケーションで、ユーザーインターフェイスの洗練度と使いやすさはほ
かの何よりも重要である。今日の市場で成功を収めるためには、アプリケーションはかっこよく見え
なければならない。しかし、Androidでは画面サイズや解像度がまちまちなので、魅力的な UIを作る
のはよりいっそう難しい。かと言って、アプリケーションのターゲットをごく少数のデバイスだけに
絞り込んでこの問題をやり過ごすこともできない。少なくとも、そんなことをすれば、顧客になって
くれるかもしれない非常に多くの
人々を諦めなければならなくなる。
Androidフレームワークの出番がここでやってくる。Androidは、最初の第1 歩から、さまざまな
デバイスをサポートするように設計されており、サポートするための単純な方法をデベロッパーに提
供している。デベロッパーツールも、複数のデバイスのサポートが楽になるように作られている。
11.1
Android
のレイアウトの基本コンセプト
UIのすべての機能を活用するには、フレームワークの基本概念を理解することが重要だ。
11.1.1
XML
を使ったレイアウト定義 ...
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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.