i want to make Step Counter in Blackberry OS 7. I want my app count every user motion. But i don't know how to detect vibration / motion using Accelerometer like SensorEvent in Android. Anybody can help me ?
Related
I'm trying to detect if my iPhone has been thrown into the air.I've tried using core motion's acceleration API and its altitude API.However, because the axes are fixed to the phone doing the detection of the changes is incredibly difficult.Is there a better way to do what I want?Is it possible to speed up the refresh rate of the CMAltitude API?
In freefall, you should see your 3 accelerometer values go to 0. Even in a projectile type of fall (throwing), the phone is in freefall as soon as it leaves the thrower's hand.
This white paper talks about using a MCU, but the concept is there.
http://www.nxp.com/files/sensors/doc/app_note/AN3151.pdF
I am writing an iOS app and don't want to start detecting for shake events until after my device has reached a certain speed. I know how to use CMMotionManager to get the CMAccelerationData to detect for shake events but does anyone know what i should use to detect how fast my device is moving? Either CMDeviceMoting/userAcceleration/GPS... i am just cannot find what i should do. I am writing my app in swift but answers in Objective-C will suffice as well.
Thank you for your help
You could use CoreLocation and use a CLLocation's speed property. This requires the device's GPS, and will only work for somewhat large speeds.
How to detect the device is falling down or moving upwards in Objective-C or Swift? The Core Motion only detect the movement when we tilt the device I need to detect the free fall of the device. Is there any relevant sensors calculating the falling speed of the iPhone?
Apple iPhone 6 has integrated barometer sensor so this might be the sensor that you are looking for. To access barometer data you will need to use CMAltimeter and CMAltitudeData classes
I have a requirement like the motion of the device in vehicle while driving should be detected when the application is in background. When the motion is detected the app should start automatically and move to foreground from background in iOS 7. I read that it is possible using CMMotionActivity Manager but have no exact clue to implement this functionality.
I have develop an application from the ipod touch 4 but unfortunately it doesnt occupy a proximity sensor, But i want to start and stop a certain event by triggering the brightness of the camera, Is this possible to implement? if so, does it consumes more CPU? and also Can i use both cameras?