Hi, I found the following piece of code in apple guidelines: - (void)accelerometer:(UIAccelerometer*)accelerometer didAccelerate:(UIAcceleration*)acceleration { //Use a basic low-pass filter to only keep the gravity in the accelerometer values accel[0] = acceleration.x * kFilteringFactor + accel[0] * (1.0 - kFilteringFactor); ...
i have implemented following method in my application. - (void)accelerometer:(UIAccelerometer *)acel didAccelerate:(UIAcceleration *)aceler { if (fabsf(aceler.x) > 1.5 || fabsf(aceler.y) > 1.5 || fabsf(aceler.z) > 1.5 || fabsf(aceler.x) < -1.5 || fabsf(aceler.y) < -1.5 || fabsf(aceler.z) < -1.5 ) { self.navigationItem.rightBarButtonIte...
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...
Hi, I have subclass UIView class in a Bounce class with Accelerometer. This Bounce class show an image and move it on the screen. When the iPhone device is moved, this image Bounce on the screen. When I create multiple instance, only last instance work properlty: // in the MainViewController.m Bounce *heart[100]; for(int i = 0; i < ...
I am developing a game that uses a different controller for each level. It needs to detect a shake via the accelerometer, so it registers itself as a delegate like so: UIAccelerometer *accel = [UIAccelerometer sharedAccelerometer]; accel.delegate = self; accel.updateInterval = kUpdateInterval; When the level ends, this controller get...
When my iPhone app resigns active status, the sharedAccelerometer singleton instance of UIAccelerometer stops sending accelerometer:didAccelerate: messages to my delegate. Is it at all possible to continue receiving those messages, similarly to how the CLLocationManagerDelegate continues to receive updates when the app is inactive? I w...
Id have an app that does one thing if you shake it one way, and another if you shake it the other. atm my code is. if (acceleration.x > 1.5) { //arm to the right when facing you float duration = ([imageArray count]*0.04); //HUMAN EYE KEEPS IMAGES IN EYE For 40 MILLISECONDS// //NSLog(@"duration:%f", duration); [theF...
How can you use the accelerometer to detect if the phone has come to a halt. In my case iw want to use it for, i'd like to detect whether its changed direction on the same axis ( a u-turn) which would involve the device stopping. Any ideas appreciated. Thanks, Sam. ...
Hi, i want to track how fast my iPhone is moved. i checked the AceelerometerGraph Example App, where the maximum Amount was about 2.0 (in this app) i want to know how exactly i can track the speed of my moving iphone. in this example app the maximum amount is reached very fast. Is there a way to get better results ? Sry for my bad en...
problem is, everytime i go into my application and scroll around inside the scrollview, everything else in the program is completely useless, and tills I stops me scrolling, the accelerometer, and not to mention everything else wont do a thing, if anyone has any idea how i can get around said problem, id be much obliged, yes I would. an...
Hi all, I am working on app which is used to display the current G-Force value of a moving car on iPhone. I don't know how to calculate the G-force value using the iPhone accelerometer values. Also, I have to calculate distance and speed using these values. Can anybody help me out to fix this problem? Thanks in advance ...
I have an iPhone 3.1.3 app which has only 2 methods of input in its main view. It has an info button to switch to a flipside view, and the only other input it takes in the main view is accelerometer movement. I want to switch off the accelerometer input when in the flipside view but haven't been able to find out how. I have the main vi...
An accelerometer related question. (Sorry the formatting may not look right, its the first time I am using this site). I got the accelerometer working as expected using the standard code UIAccelerometer *accel = [UIAccelerometer sharedAccelerometer]; accel.delegate = self; accel.updateInterval = 0.1; //I also tried other update values...
What is the difference between "UIAccelerometer" and "CLLocationManager"? Both give me x, y and z axis as result. UIAccelerometer X -18.000 Y -03.500 Z -41.000 CLLocationManager X -0.036 Y -0.002 Z -1.069 Is this information from the same sensors with different formatting? Or are there "real" differences? Thanks! ...
Hi, I want some help on UIAccelerometer class. I want to find some way to find out or distinguish when I wave iphone device from right-to-left and the left-to-right. I am getting x,y,z values as well as interval value. I am also getting velocity and distance calculated from normal physics rule. Distance = (prevDist + sqrt(pow((prevx - ...
Hi all, Can anybody suggest to me some good applications that make use of UIAccelerometer Class and some references too ? ...
Hi, I am using accelerometer to move/change things on the screen in my app. I also need to detect UIEventSubtypeMotionShake in the view controller for some other animations. As my app is a simple view based app, there is just one view controller which acts as UIAccelerometerDelegate AND FirstResponder (for detecting the shake event). ...
Hi I want a functionality in which i want to detect if my device is being shaked.The problem is i can detect the shake with didAccelerate method of UIAcceleratorDelegate , but i dont know how to detect if the device is still shaking. I want to play an audio file when the user shakes the device for first time,i have to check if the user ...
Hi everybody ! I am facing a problem using chipmunk and iPhone accelerometer. Indeed, I defined a ball shape and body : ballBody = cpBodyNew(100.0, INFINITY); ballBody->p = cpv(160, 240); cpSpaceAddBody(space, ballBody); cpShape *ballShape = cpCircleShapeNew(ballBody, 20.0, cpvzero); ballShape->e = 0.5; ballShape->u = 0.8; ballSha...
Hi, I want to scroll a scrollview based on the UIAccelerometer values. What is the best way to accomplish this? Thanks and Regards ...