core-motion_开发者

Registration timer expired, but client is still registering?

my app program use coremotionmanager and locationmanager too.when i start the program, i found this error.[详细]

2023-04-09 10:39 分类：问答

core motion moving two things with the accerlerometer

I\'m trying to move two buttons around using the accelerometer in xcode.I have the first button working, when I call startDrifting, but when I call startDrifting2 for the second button, nothing is hap[详细]

2023-03-25 09:02 分类：问答

delegate method for CMMotionManager

I just want to know that when we call the method of startGyroUpdates with CMMotionManager and fix some updateInterval say to 1.0/60.0 , then开发者_JAVA百科 is there any delegate method that we have to[详细]

2023-03-23 07:20 分类：问答

update frequency set for deviceMotionUpdateInterval it's the actual frequency?

analyzing the deviceMotion.timestamp i saw that the the update frequency set in DeviceMotion is not the actual frequency of update.[详细]

2023-03-22 04:10 分类：问答

Tilt location iOS app

How can I determine the tilt location in the y direction on my iOS app? First I tried playing with the accelerometer. But the accelerometer values change even if the iPhone isn\'t tilting. Then I trie[详细]

2023-03-17 00:01 分类：问答

Why does my retained CMAttitude instance become nil after I call stopDeviceMotionUpdates and startDeviceMotionUpdates?

I have a class with an ivar: @interface myCoolClass:NSObject { CMAttitude *referenceAttitude; } In my implementation have these selectors:[详细]

2023-03-14 20:11 分类：问答

Adapting Shake Code from 'Beginning Iphone 4 Development' Causing Crash

The code below is a near replica of the Shake and Bake example from Beginning Iphone 4 Development.It is lacking a BOOL if statement before CMAcceleration acceleration = accelerometerData.acceleration[详细]

2023-03-10 00:02 分类：问答

What is kAccelerometerMinStep?

I have been looking at the Accelerome开发者_如何学Cter Graph example in the iOS Developer library and I have a question about one of the variables that is used...[详细]

2023-02-23 01:49 分类：问答

Do I get more accurate or faster accelerometer readings with Core Motion?

I can use this method of the Core Motion framework: - (void)startAccelerometerUpdatesToQueue:(NSOperationQueue *)queue withHandler:(CMAccelerometerHandler)handler[详细]

2023-02-20 17:04 分类：问答