I'm using windows and I seem to need that HDAPS thing. (The path written next to the checkbox shows a linux path).

Regards,
plusminus

Oh, that is a pity of course...

Too bad I have not found any useful solution for Windows yet how to access the accelerometer through Java...

(if you find one, please let me know so that I could try that out...)

Peli

this is the code tht i am trying to run as given in the sample by plusminus



and i get the following error:



please also show how to make a text box and display the values of accelerometer reading in it on button click

thanks in advance

Hello neel,

why didn't you leave the class as I posted it
You know that you can have ordinary classes that do not have to extend Activity

Regards,
plusminus

hi plusminus

this is yout original code

Code: Select all

package com.neel;

import android.app.Activity;
import android.os.Bundle;

import android.hardware.Sensors;

public class Accelerometer {

     /** True when the Accelerometer-functionality is basically available. */
     boolean accelerometerAvailable = false;
     boolean isEnabled = false;

     /**
      * Sets up an AccelerometerReader. Checks if Accelerometer is available on
      * this device and throws UnsupportedOperationException if not .
      *
      * @param doEnable :
      *            enables the devices Accelerometer
      *            initially (if sensor available)
      * @throws UnsupportedOperationException
      *             if Accelerometer is not available on this device.
      */
     public Accelerometer(boolean doEnable)
               throws UnsupportedOperationException {

          /* Check once here in the constructor if an
           * Accelerometer is available on this device. */
          for (String aSensor : Sensors.getSupportedSensors())
               if (aSensor.equals(Sensors.SENSOR_ACCELEROMETER))
                    accelerometerAvailable = true;

          if (!accelerometerAvailable)
               throw new UnsupportedOperationException(
                         "Accelerometer is not available.");

          if (doEnable)
               setEnableAccelerometer(true);
     }

     /**
      * En/Dis-able the Accelerometer.
      *
      * @param doEnable
      *            <code>true</code> for enable.<br>
      *            <code>false</code> for disable.
      * @throws UnsupportedOperationException
      */
     public void setEnableAccelerometer(boolean doEnable)
               throws UnsupportedOperationException {
          if (!accelerometerAvailable)
               throw new UnsupportedOperationException(
                         "Accelerometer is not available.");

          /* If should be enabled and not already is: */
          if (doEnable && !this.isEnabled) {
               Sensors.enableSensor(Sensors.SENSOR_ACCELEROMETER);
               this.isEnabled = true;
          } else /* If should be disabled and not already is: */
          if (!doEnable && this.isEnabled) {
               Sensors.disableSensor(Sensors.SENSOR_ACCELEROMETER);
               this.isEnabled = false;
          }
     }

     /**
      * Read out the values currently provided by the Accelerometer.
      *
      * @return the current Accelerometer-values.
      * @throws UnsupportedOperationException
      *             if Accelerometer is not available on this device.
      * @throws IllegalStateException
      *             if Accelerometer was set to disabled.
      */
     public float[] readAccelerometer() throws UnsupportedOperationException, IllegalStateException {
          if (!accelerometerAvailable)
               throw new UnsupportedOperationException(
                         "Accelerometer is not available.");

          if (!this.isEnabled)
               throw new IllegalStateException(
                         "Accelerometer was set to disabled!");
          /* Get number of sensor-values the sensor will return. Could be
           * variable, depending of the amount of axis (1D, 2D or 3D
           * accelerometer). */
          int sensorValues = Sensors
                    .getNumSensorValues(Sensors.SENSOR_ACCELEROMETER);
          float[] out = new float[sensorValues];

          /* Make the OS fill the array we passed. */
          Sensors.readSensor(Sensors.SENSOR_ACCELEROMETER, out);

          /* And return it. */
          return out;
     }
}


i did not intend to change your code. i tried running your code exactly as it was given but got the following error

Code: Select all

Application Error: com.neel
An error has occured in com.neel. Unable to
instantiate activity
ComponentInfo{com.neel/com.neel.Accelerometer};
java.lang.InstantiationException:
com.neel.Accelerometer


and also saw tht some other guy got the same error and you replied to him the following

Code: Select all

public class TestLayout extends Activity {
     
     private AccelerometerReader myAcReader = new AccelerometerReader(true);

     @Override
     public void onCreate(Bundle icicle) {
          super.onCreate(icicle);
          this.setContentView(R.layout.main);
          // Perhaps make a button-OnClick show the Accelerometer-Values in a TextView...
     }
}


i did not understand this and where it has to be put in the code. and was jsut trying to get it to work.

please do not get me wrong brother.

Yes, I told that once.

But you mixed both.

Put my code to a separate file and just use it in a normal Activity, like I said once:



Regards,
plusminus

ok thanks i got it


but i want to display the values [0,0,0] returned by the acceleorometer on screen......pls show how to do this?


thanks for all ur help

So you successfully received the values

So search for "findViewById" on this forum and/or have a look at the Novice Tutorials.

Regards,
plusminus

well when i run the program i dont see anything on the screen. is that what is supposed to happen. I knw taht right now it treats the emulator as in a free fall and so [0,0,0] is the answer.

Code: Select all

int sensorValues = Sensors.getNumSensorValues(Sensors.SENSOR_ACCELEROMETER);
         
float[] out = new float[sensorValues];

          /* Make the OS fill the array we passed. */
          Sensors.readSensor(Sensors.SENSOR_ACCELEROMETER, out);
         
         
          /* And return it. */
          return out;


as far as i understand after these lines of code "out" will have the accelerometer values. please correct me if i am wrong

thanks

Hello neel,

I created a little sample-app for you:

As promised it shows [font=Lucida Console][x,y,z] = [0,0,0][/font] .

[Edit]Ok, it actually is [font=Lucida Console][x,y,z] = [0.0,0.0,0.0][/font] [/Edit]

Regards,
plusminus

thanks plusminus.....it helped

Hi +/-,

I am trying to install openintent.apk on the emulator. From the commandprompt when i say adb install openintent.apk, it shows that it has install the apk but on emulator screen it does not shows up. Am also not able to locate the application folder where it is supposedly to be installed in the emulator.

so can u help me out

have you messed with this by putting your application on the Google Phone? I would like to set the google phone to read the accelerometer data and to change configuration based on the No Hand's application my application development class is working on- to where the phone would switch to blue tooth if say the accelerometer tells notifies the system that the phone is going 15+ mph. willing to work in small steps like just being able to read the accelerometer data and put into txt. we do have a google phone to test with and the emulator on the computer.

Bretters wrote:have you messed with this by putting your application on the Google Phone? I would like to set the google phone to read the accelerometer data and to change configuration based on the No Hand's application my application development class is working on- to where the phone would switch to blue tooth if say the accelerometer tells notifies the system that the phone is going 15+ mph. willing to work in small steps like just being able to read the accelerometer data and put into txt. we do have a google phone to test with and the emulator on the computer.

There is an accelerometer game available in the apps-for-android project.

http://code.google.com/p/apps-for-andro ... unk/Amazed

dont really care about a game but maybe will see how the game gets the accelerometer inputs...