Is there a framework or example code out there that shows how to use UIAccelerometer to control an onscreen level, similar to the bubble level apps?
I realize I need to use it like:
UIAccelerometer *accel = [UIAccelerometer sharedAccelerometer];
accel.delegate = self;
accel.updateInterval = 1.0f/50.0f;
- (void)accelerometer:(UIAccelerometer *)acel didAccelerate:(UIAcceleration *)aceler
{
// get angle in radians
float angle = atan2(aceler.x, aceler.y);
// convert to degrees
float angleInDegrees = (angle * 180/M_PI);
NSLog(@"%.0f degrees",angleInDegrees);
if (angleInDegrees > 90) {
self.levelIndicator.center = CGPointMake(self.cachedLevel.x+angleInDegrees-90, self.cachedLevel.y);
} else {
self.levelIndicator.center = CGPointMake(self.cachedLevel.x-angleInDegrees+90, self.cachedLevel.y);
}
}
How could I use the angleInDegrees to move a simple UIView left or right from center based on what the angle is? My attempt above wasn't very successful.
