sensors

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how to calculate phone's movement in the vertical direction from rest?

I am developing an app开发者_开发百科 using android OS for which I need to know how can I calculate the movement of the device up in the vertical direction.[详细]

2023-03-11 07:04 分类：问答
android compass seems unreliable

I have been working on a small compass app the past couple of days, and have gotten the code up and running, but it seems that the compass reading is not accurate. After calibrating both phones, my fi[详细]

2023-03-11 06:37 分类：问答
Problem working with sensor - accelerometer

I have a Galaxy Tab 1000. I am trying to write a code, that will identify ANY movement. I have version 2.2 on the phone.[详细]

2023-03-11 02:48 分类：问答
How Can i Make Android Sensor effect like this..?

i am a student and recently i have seen a video of ip开发者_运维技巧hone application was this in this he just blow air from mouth (sorry dont know exact word hope u understand) and gets sensor event.[详细]

2023-03-08 11:49 分类：问答
How to attach physical sensors to computers? (infrared, laser)

I am working on a project where I need to attach a sensor to the computer like laser开发者_运维百科 sensor or an infrared sensor, to use in a foul line detection. Basically the idea is, if someone ste[详细]

2023-03-08 02:57 分类：问答
What is the best practice when polling for sensor values?

I\'m working on an application where I periodically need to get a sensor value. For this I\'m using AlarmManager and a Receiver at set intervals. Android\'s sensor implementation seems to be focused a[详细]

2023-03-06 07:02 分类：问答
smile haarcascade

I have tried to integrate smile haarcascade (smileD_haarcascade_v0.05) in OpenCV but it only detect mouth portio开发者_C百科n how it will will detect whether person is smiling or not ?please review th[详细]

2023-03-02 03:26 分类：问答
Android: Alternative to onSensorChanged? no ACCELEROMETER data when phone is lying on its back on a table( when no movement)

So I\'m using this code to get the Accelerometer data. When I am in the DDMS mode to check what my print statement is printing, I noticed that nothing is printed when the phone does not move. ie. its[详细]

2023-03-01 13:56 分类：问答
Still receiving sensor events after unregisterListener

I have noticed a lag between calling unregisterListener and when sensor events stop coming to my service. Is this normal? Is there a way to immediately stop receiving sensor 开发者_如何学JAVAevents?[详细]

2023-02-28 08:35 分类：问答
Pull single value from sensor without using an event

I need some help getting info from the orientation sensor. As I have seen in just about every tutorial/guide out there, the values are passed to an event (onSensorChanged(SensorEvent event) in which t[详细]

2023-02-27 05:43 分类：问答