我必须开发一个应用程序。我必须在自行车上安装一个像车速表这样的指示器。
iPhone 被放在汽车的角落里。
iPhone 被放置在车内，无法掉落到任何地方，甚至无法移动。 （车内有一个专门放置iPhone的地方）。
现在，汽车的发展进展顺利。
指示器指示零——这是顺利的方式。
假设汽车经过一个颠簸处。
iPhone 应该跟踪这些移动。如果凹凸很大：
- iPhone 应显示 - 巨大凹凸 - 最大指示器
如果凹凸较低：
- iPhone 应显示 - 正常凹凸 - 指示器中间
其他：
我知道如何添加抖动处理程序，如给定的在以下链接中：
iPhone 中的加速计范围
但是这里 iPhone 不会摇晃吗？它是在固定的地方。
解决方案应该是什么？
I have to develop an application. I have to put an indicator like speedometer in the bike.
iPhone is put in the corner of a Car.
The iPhone is in a placed in a car, from where it can't be dropped anywhere and can't be moved even. ( There is a special place in car where user place iPhone ).
Now, Car is going on a smooth way.
Indicator indicates zero - that is smooth way.
Suppose, a bump is passed by the car.
These movement should be tracked by iPhone. If bump is huge:
- iPhone should display - huge bump - maximum indicator
If bump is low:
- iPhone should display - normal bump - middle at indicator
else:
- iPhone should display - smooth road - zero indicator
I know how to add shake handler, as given in following link:
accelerometer range in iPhone
But here iPhone is not going to be shake? It is in fixed place.
What should be the solution?
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您需要使用 UIAccelerometer、UIAccelerometerDelegate 和UIAcceleration 类。这是一些示例代码。
You'll need to use the UIAccelerometer, UIAccelerometerDelegate, and UIAcceleration classes. Here is some Sample Code.
iPhone 会晃动 - 它连接到汽车上，汽车也会晃动。您应该能够使用与用手摇动相同的代码。
The iPhone will be shaking - it's attached to the car, and the car will be shaking. You should be able to use the same code as you would if you were shaking it with your hand.