// Need to implement SensorListener
public class ShakeActivity extends Activity implements SensorListener {
// For shake motion detection.
private SensorManager sensorMgr;
private long lastUpdate = -1;
private float x, y, z;
private float last_x, last_y, last_z;
private static final int SHAKE_THRESHOLD = 800;

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// start motion detection
sensorMgr = (SensorManager) getSystemService(SENSOR_SERVICE);
boolean accelSupported = sensorMgr.registerListener(this,
    SensorManager.SENSOR_ACCELEROMETER,
    SensorManager.SENSOR_DELAY_GAME);

if (!accelSupported) {
    // on accelerometer on this device
    sensorMgr.unregisterListener(this,
            SensorManager.SENSOR_ACCELEROMETER);
}
}

protected void onPause() {
if (sensorMgr != null) {
    sensorMgr.unregisterListener(this,
            SensorManager.SENSOR_ACCELEROMETER);
    sensorMgr = null;
    }
super.onPause();
}

public void onAccuracyChanged(int arg0, int arg1) {
// TODO Auto-generated method stub
}

public void onSensorChanged(int sensor, float[] values) {
if (sensor == SensorManager.SENSOR_ACCELEROMETER) {
    long curTime = System.currentTimeMillis();
    // only allow one update every 100ms.
    if ((curTime - lastUpdate)> 100) {
    long diffTime = (curTime - lastUpdate);
    lastUpdate = curTime;

    x = values[SensorManager.DATA_X];
    y = values[SensorManager.DATA_Y];
    z = values[SensorManager.DATA_Z];

    float speed = Math.abs(x+y+z - last_x - last_y - last_z)
                          / diffTime * 10000;
    if (speed > SHAKE_THRESHOLD) {
        // yes, this is a shake action! Do something about it!
    }
    last_x = x;
    last_y = y;
    last_z = z;
    }
}
}
}

这里还有另一个实现，它是基于这里的一些技巧以及来自Android开发人员网站的代码。

MainActivity.java

public class MainActivity extends Activity {

    private ShakeDetector mShakeDetector;
    private SensorManager mSensorManager;
    private Sensor mAccelerometer;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // ShakeDetector initialization
        mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
        mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
        mShakeDetector = new ShakeDetector(new OnShakeListener() {
            @Override
            public void onShake() {
                // Do stuff!
            }
        });
    }

    @Override
    protected void onResume() {
        super.onResume();
        mSensorManager.registerListener(mShakeDetector, mAccelerometer, SensorManager.SENSOR_DELAY_UI);
    }

    @Override
    protected void onPause() {
        mSensorManager.unregisterListener(mShakeDetector);
        super.onPause();
    }   
}

ShakeDetector.java

package com.example.test;

import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;

public class ShakeDetector implements SensorEventListener {

    // Minimum acceleration needed to count as a shake movement
    private static final int MIN_SHAKE_ACCELERATION = 5;

    // Minimum number of movements to register a shake
    private static final int MIN_MOVEMENTS = 2;

    // Maximum time (in milliseconds) for the whole shake to occur
    private static final int MAX_SHAKE_DURATION = 500;

    // Arrays to store gravity and linear acceleration values
    private float[] mGravity = { 0.0f, 0.0f, 0.0f };
    private float[] mLinearAcceleration = { 0.0f, 0.0f, 0.0f };

    // Indexes for x, y, and z values
    private static final int X = 0;
    private static final int Y = 1;
    private static final int Z = 2;

    // OnShakeListener that will be notified when the shake is detected
    private OnShakeListener mShakeListener;

    // Start time for the shake detection
    long startTime = 0;

    // Counter for shake movements
    int moveCount = 0;

    // Constructor that sets the shake listener
    public ShakeDetector(OnShakeListener shakeListener) {
        mShakeListener = shakeListener;
    }

    @Override
    public void onSensorChanged(SensorEvent event) {
        // This method will be called when the accelerometer detects a change.

        // Call a helper method that wraps code from the Android developer site
        setCurrentAcceleration(event);

        // Get the max linear acceleration in any direction
        float maxLinearAcceleration = getMaxCurrentLinearAcceleration();

        // Check if the acceleration is greater than our minimum threshold
        if (maxLinearAcceleration > MIN_SHAKE_ACCELERATION) {
            long now = System.currentTimeMillis();

            // Set the startTime if it was reset to zero
            if (startTime == 0) {
                startTime = now;
            }

            long elapsedTime = now - startTime;

            // Check if we're still in the shake window we defined
            if (elapsedTime > MAX_SHAKE_DURATION) {
                // Too much time has passed. Start over!
                resetShakeDetection();
            }
            else {
                // Keep track of all the movements
                moveCount++;

                // Check if enough movements have been made to qualify as a shake
                if (moveCount > MIN_MOVEMENTS) {
                    // It's a shake! Notify the listener.
                    mShakeListener.onShake();

                    // Reset for the next one!
                    resetShakeDetection();
                }
            }
        }
    }

    @Override
    public void onAccuracyChanged(Sensor sensor, int accuracy) {
        // Intentionally blank
    }

    private void setCurrentAcceleration(SensorEvent event) {
        /*
         *  BEGIN SECTION from Android developer site. This code accounts for 
         *  gravity using a high-pass filter
         */

        // alpha is calculated as t / (t + dT)
        // with t, the low-pass filter's time-constant
        // and dT, the event delivery rate

        final float alpha = 0.8f;

        // Gravity components of x, y, and z acceleration
        mGravity[X] = alpha * mGravity[X] + (1 - alpha) * event.values[X];
        mGravity[Y] = alpha * mGravity[Y] + (1 - alpha) * event.values[Y];
        mGravity[Z] = alpha * mGravity[Z] + (1 - alpha) * event.values[Z];

        // Linear acceleration along the x, y, and z axes (gravity effects removed)
        mLinearAcceleration[X] = event.values[X] - mGravity[X];
        mLinearAcceleration[Y] = event.values[Y] - mGravity[Y];
        mLinearAcceleration[Z] = event.values[Z] - mGravity[Z];

        /*
         *  END SECTION from Android developer site
         */
    }

    private float getMaxCurrentLinearAcceleration() {
        // Start by setting the value to the x value
        float maxLinearAcceleration = mLinearAcceleration[X];

        // Check if the y value is greater
        if (mLinearAcceleration[Y] > maxLinearAcceleration) {
            maxLinearAcceleration = mLinearAcceleration[Y];
        }

        // Check if the z value is greater
        if (mLinearAcceleration[Z] > maxLinearAcceleration) {
            maxLinearAcceleration = mLinearAcceleration[Z];
        }

        // Return the greatest value
        return maxLinearAcceleration;
    }

    private void resetShakeDetection() {
        startTime = 0;
        moveCount = 0;
    }

    // (I'd normally put this definition in it's own .java file)
    public interface OnShakeListener {
        public void onShake();
    }
}

下面是一个示例代码。 把这些放到你的活动课上:

  /* put this into your activity class */
  private SensorManager mSensorManager;
  private float mAccel; // acceleration apart from gravity
  private float mAccelCurrent; // current acceleration including gravity
  private float mAccelLast; // last acceleration including gravity

  private final SensorEventListener mSensorListener = new SensorEventListener() {

    public void onSensorChanged(SensorEvent se) {
      float x = se.values[0];
      float y = se.values[1];
      float z = se.values[2];
      mAccelLast = mAccelCurrent;
      mAccelCurrent = (float) Math.sqrt((double) (x*x + y*y + z*z));
      float delta = mAccelCurrent - mAccelLast;
      mAccel = mAccel * 0.9f + delta; // perform low-cut filter
    }

    public void onAccuracyChanged(Sensor sensor, int accuracy) {
    }
  };

  @Override
  protected void onResume() {
    super.onResume();
    mSensorManager.registerListener(mSensorListener, mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);
  }

  @Override
  protected void onPause() {
    mSensorManager.unregisterListener(mSensorListener);
    super.onPause();
  }

把这个添加到你的onCreate方法中:

    /* do this in onCreate */
    mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
    mSensorManager.registerListener(mSensorListener, mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);
    mAccel = 0.00f;
    mAccelCurrent = SensorManager.GRAVITY_EARTH;
    mAccelLast = SensorManager.GRAVITY_EARTH;

然后你可以在你的应用程序中任何你想要的地方询问“mAccel”当前加速度，独立于轴，并从静态加速度(如重力)中清除。 大概是。如果没有移动，则为0，如果设备震动，则为>2。

根据评论-测试这一点:

if (mAccel > 12) {
    Toast toast = Toast.makeText(getApplicationContext(), "Device has shaken.", Toast.LENGTH_LONG);
    toast.show();
}

注:

The accelometer should be deactivated onPause and activated onResume to save resources (CPU, Battery). The code assumes we are on planet Earth ;-) and initializes the acceleration to earth gravity. Otherwise you would get a strong "shake" when the application starts and "hits" the ground from free-fall. However, the code gets used to the gravitation due to the low-cut filter and would work also on other planets or in free space, once it is initialized. (you never know how long your application will be in use...;-)

package anywheresoftware.b4a.student;

import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.util.FloatMath;

public class ShakeEventListener implements SensorEventListener {

    /*
     * The gForce that is necessary to register as shake.
     * Must be greater than 1G (one earth gravity unit).
     * You can install "G-Force", by Blake La Pierre
     * from the Google Play Store and run it to see how
     *  many G's it takes to register a shake
     */
    private static final float SHAKE_THRESHOLD_GRAVITY = 2.7F;
    private static int SHAKE_SLOP_TIME_MS = 500;
    private static final int SHAKE_COUNT_RESET_TIME_MS = 1000;

    private OnShakeListener mListener;
    private long mShakeTimestamp;
    private int mShakeCount;

    public void setOnShakeListener(OnShakeListener listener) {
        this.mListener = listener;
    }

    public interface OnShakeListener {
        public void onShake(int count);
    }

    @Override
    public void onAccuracyChanged(Sensor sensor, int accuracy) {
        // ignore
    }

    @Override
    public void onSensorChanged(SensorEvent event) {

        if (mListener != null) {
            float x = event.values[0];
            float y = event.values[1];
            float z = event.values[2];

            float gX = x / SensorManager.GRAVITY_EARTH;
            float gY = y / SensorManager.GRAVITY_EARTH;
            float gZ = z / SensorManager.GRAVITY_EARTH;

            // gForce will be close to 1 when there is no movement.
            float gForce = FloatMath.sqrt(gX * gX + gY * gY + gZ * gZ);

            if (gForce > SHAKE_THRESHOLD_GRAVITY) {
                final long now = System.currentTimeMillis();
                // ignore shake events too close to each other (500ms)
                if (mShakeTimestamp + getSHAKE_SLOP_TIME_MS() > now) {
                    return;
                }

                // reset the shake count after 3 seconds of no shakes
                if (mShakeTimestamp + SHAKE_COUNT_RESET_TIME_MS < now) {
                    mShakeCount = 0;
                }

                mShakeTimestamp = now;
                mShakeCount++;

                mListener.onShake(mShakeCount);
            }
        }
    }

    private long getSHAKE_SLOP_TIME_MS() {
        // TODO Auto-generated method stub
        return SHAKE_SLOP_TIME_MS;
    }

    public void setSHAKE_SLOP_TIME_MS(int sHAKE_SLOP_TIME_MS) {
        SHAKE_SLOP_TIME_MS = sHAKE_SLOP_TIME_MS;
    }   

}

你可能想试试开源tinybus。有了它，震动检测就像这样简单。

public class MainActivity extends Activity {

    private Bus mBus;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        ...

        // Create a bus and attach it to activity
        mBus = TinyBus.from(this).wire(new ShakeEventWire());
    }

    @Subscribe
    public void onShakeEvent(ShakeEvent event) {
        Toast.makeText(this, "Device has been shaken", 
                Toast.LENGTH_SHORT).show();
    }

    @Override
    protected void onStart() {
        super.onStart();
        mBus.register(this);
    }

    @Override
    protected void onStop() {
        mBus.unregister(this);
        super.onStop();
    }
}

它采用地震仪进行振动检测。

我修改了@peceps的答案，并使它的kotlin版本。我还添加了LifecycleOwner参数，使其能够感知生命周期。

import android.hardware.Sensor
import android.hardware.SensorEvent
import android.hardware.SensorEventListener
import android.hardware.SensorManager
import androidx.lifecycle.DefaultLifecycleObserver
import androidx.lifecycle.LifecycleOwner
import kotlin.math.abs


/**
 * Listener that detects shake gesture.
 */
class ShakeEventListener(
    lifecycleOwner: LifecycleOwner,
    private val sensorManager: SensorManager,
    private val onShake: () -> Unit = {}
) : SensorEventListener, DefaultLifecycleObserver {
    /** Time when the gesture started.  */
    private var mFirstDirectionChangeTime: Long = 0

    /** Time when the last movement started.  */
    private var mLastDirectionChangeTime: Long = 0

    /** How many movements are considered so far.  */
    private var mDirectionChangeCount = 0

    /** The last x position.  */
    private var lastX = 0f

    /** The last y position.  */
    private var lastY = 0f

    /** The last z position.  */
    private var lastZ = 0f

    init {
        sensorManager.registerListener(
            this,
            sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
            SensorManager.SENSOR_DELAY_UI
        )
        // observe lifecycle state
        lifecycleOwner.lifecycle.addObserver(this)
    }


    override fun onResume(owner: LifecycleOwner) {
        sensorManager.registerListener(
            this,
            sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
            SensorManager.SENSOR_DELAY_UI
        )
    }


    override fun onPause(owner: LifecycleOwner) {
        sensorManager.unregisterListener(this)
    }

    override fun onSensorChanged(se: SensorEvent) {
        // get sensor data
        val x = se.values[0]
        val y = se.values[1]
        val z = se.values[2]

        // calculate movement
        val totalMovement = abs(x + y + z - lastX - lastY - lastZ)
        if (totalMovement > MIN_FORCE) {

            // get time
            val now = System.currentTimeMillis()

            // store first movement time
            if (mFirstDirectionChangeTime == 0L) {
                mFirstDirectionChangeTime = now
                mLastDirectionChangeTime = now
            }

            // check if the last movement was not long ago
            val lastChangeWasAgo = now - mLastDirectionChangeTime
            if (lastChangeWasAgo < MAX_PAUSE_BETWEEN_DIRECTION_CHANGE) {

                // store movement data
                mLastDirectionChangeTime = now
                mDirectionChangeCount++

                // store last sensor data
                lastX = x
                lastY = y
                lastZ = z

                // check how many movements are so far
                if (mDirectionChangeCount >= MIN_DIRECTION_CHANGE) {

                    // check total duration
                    val totalDuration = now - mFirstDirectionChangeTime
                    if (totalDuration < MAX_TOTAL_DURATION_OF_SHAKE) {
                        onShake()
                        resetShakeParameters()
                    }
                }
            } else {
                resetShakeParameters()
            }
        }
    }

    /**
     * Resets the shake parameters to their default values.
     */
    private fun resetShakeParameters() {
        mFirstDirectionChangeTime = 0
        mDirectionChangeCount = 0
        mLastDirectionChangeTime = 0
        lastX = 0f
        lastY = 0f
        lastZ = 0f
    }

    override fun onAccuracyChanged(sensor: Sensor, accuracy: Int) {}

    companion object {
        /** Minimum movement force to consider.  */
        private const val MIN_FORCE = 10

        /**
         * Minimum times in a shake gesture that the direction of movement needs to
         * change.
         */
        private const val MIN_DIRECTION_CHANGE = 3

        /** Maximum pause between movements.  */
        private const val MAX_PAUSE_BETWEEN_DIRECTION_CHANGE = 200

        /** Maximum allowed time for shake gesture.  */
        private const val MAX_TOTAL_DURATION_OF_SHAKE = 400
    }
}

在您的活动中，添加以下代码，使其检测震动事件:

ShakeEventListener(this, sensorManager){
    // onShake logic
}