find out the force in iPhone

Question

I have to develop an application. Requirement is given below.

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?

thanks for helping me in advance.

Answer 1

You'll need to use the UIAccelerometer, UIAccelerometerDelegate, and UIAcceleration classes. Here is some Sample Code.

Answer 2

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.