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上传时间: 2011-04-11
详细说明： On 9th January, 2007, Apple officially launched the iPhone, and the world of user interface design shifted. While tablet PCs had been around for a while, the iPhone was the first device to give so many people a portable touchscreen, and people loved it. Just over a year later, Google and the Open Handset Alliance announced Android which in many ways is the direct competitor to iPhone. What is it about touchscreen phones that we love? The answer is simple—feedback. Touchscreens offer a way to directly manipulate on-screen ob jects, which in the past had to be driven through a keyboard, mouse, joystick, or other input device. The touchscreen model of direct manipulation has a large impact on the way we think about our user interfaces as developers, and changes the expectations a user has for the application. Touchscreen devices require us to stop thinking in terms of forms, and start thinking about object-oriented user interfaces. ...展开收缩
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