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기기를 흔들었을 때 앱을 새로 고치는 방법은?
안드로이드 앱을 새로 고칠 쉐이크 기능을 추가해야 합니다.
내가 발견한 문서의 내용은 다음과 같습니다.SensorListener하지만 이클립스는 제게 그것이 더 이상 사용되지 않는다고 말하고 제안합니다.SensorEventListener.
제가 이걸 어떻게 만드는지에 대한 좋은 가이드가 있는 사람?
여기 코드 예제가 있습니다.활동 클래스에 입력합니다.
/* 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();
}
onCreate 메서드에 다음을 추가합니다.
/* 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;
그런 다음 "mAccel"을 응용 프로그램에서 원하는 위치에 요청하여 축과 무관하게 중력과 같은 정적 가속에서 제거할 수 있습니다.움직임이 없으면 약 0이 되고, 장치가 흔들리면 >2가 됩니다.
의견을 기반으로 - 이를 테스트합니다.
if (mAccel > 12) {
Toast toast = Toast.makeText(getApplicationContext(), "Device has shaken.", Toast.LENGTH_LONG);
toast.show();
}
주의:
가속도계는 일시 중지 시 비활성화되고 리소스(CPU, 배터리)를 절약하기 위해 재개 시 활성화되어야 합니다.이 코드는 우리가 지구에 있다고 가정하고 지구 중력에 대한 가속을 초기화합니다.그렇지 않으면 애플리케이션이 시작될 때 강한 "흔들림"이 발생하고 자유낙하로부터 "땅에 부딪힐" 것입니다.하지만 코드는 로우 컷 필터로 인한 중력에 익숙해지고 초기화되면 다른 행성이나 자유 공간에서도 작동합니다.(어플리케이션이 얼마나 오래 사용될지는 알 수 없습니다...;-)
다음은 흔들림 제스처 감지를 위한 코드입니다.
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
/**
* Listener that detects shake gesture.
*/
public class ShakeEventListener implements SensorEventListener {
/** Minimum movement force to consider. */
private static final int MIN_FORCE = 10;
/**
* Minimum times in a shake gesture that the direction of movement needs to
* change.
*/
private static final int MIN_DIRECTION_CHANGE = 3;
/** Maximum pause between movements. */
private static final int MAX_PAUSE_BETHWEEN_DIRECTION_CHANGE = 200;
/** Maximum allowed time for shake gesture. */
private static final int MAX_TOTAL_DURATION_OF_SHAKE = 400;
/** Time when the gesture started. */
private long mFirstDirectionChangeTime = 0;
/** Time when the last movement started. */
private long mLastDirectionChangeTime;
/** How many movements are considered so far. */
private int mDirectionChangeCount = 0;
/** The last x position. */
private float lastX = 0;
/** The last y position. */
private float lastY = 0;
/** The last z position. */
private float lastZ = 0;
/** OnShakeListener that is called when shake is detected. */
private OnShakeListener mShakeListener;
/**
* Interface for shake gesture.
*/
public interface OnShakeListener {
/**
* Called when shake gesture is detected.
*/
void onShake();
}
public void setOnShakeListener(OnShakeListener listener) {
mShakeListener = listener;
}
@Override
public void onSensorChanged(SensorEvent se) {
// get sensor data
float x = se.values[SensorManager.DATA_X];
float y = se.values[SensorManager.DATA_Y];
float z = se.values[SensorManager.DATA_Z];
// calculate movement
float totalMovement = Math.abs(x + y + z - lastX - lastY - lastZ);
if (totalMovement > MIN_FORCE) {
// get time
long now = System.currentTimeMillis();
// store first movement time
if (mFirstDirectionChangeTime == 0) {
mFirstDirectionChangeTime = now;
mLastDirectionChangeTime = now;
}
// check if the last movement was not long ago
long lastChangeWasAgo = now - mLastDirectionChangeTime;
if (lastChangeWasAgo < MAX_PAUSE_BETHWEEN_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
long totalDuration = now - mFirstDirectionChangeTime;
if (totalDuration < MAX_TOTAL_DURATION_OF_SHAKE) {
mShakeListener.onShake();
resetShakeParameters();
}
}
} else {
resetShakeParameters();
}
}
}
/**
* Resets the shake parameters to their default values.
*/
private void resetShakeParameters() {
mFirstDirectionChangeTime = 0;
mDirectionChangeCount = 0;
mLastDirectionChangeTime = 0;
lastX = 0;
lastY = 0;
lastZ = 0;
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
}
활동에 다음을 추가합니다.
private SensorManager mSensorManager;
private ShakeEventListener mSensorListener;
...
onCreate()에 다음을 추가합니다.
mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
mSensorListener = new ShakeEventListener();
mSensorListener.setOnShakeListener(new ShakeEventListener.OnShakeListener() {
public void onShake() {
Toast.makeText(KPBActivityImpl.this, "Shake!", Toast.LENGTH_SHORT).show();
}
});
그리고:
@Override
protected void onResume() {
super.onResume();
mSensorManager.registerListener(mSensorListener,
mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
SensorManager.SENSOR_DELAY_UI);
}
@Override
protected void onPause() {
mSensorManager.unregisterListener(mSensorListener);
super.onPause();
}
Android 개발자 사이트의 코드뿐만 아니라 여기에 있는 몇 가지 팁을 기반으로 하는 또 다른 구현이 있습니다.
기본 활동.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();
}
}
저는 Peterdk의 대답이 정말 좋았습니다.저는 그의 코드를 몇 번 수정하는 일을 맡았습니다.
파일: ShakeDetector.java
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.util.FloatMath;
public class ShakeDetector implements SensorEventListener {
// The gForce that is necessary to register as shake. Must be greater than 1G (one earth gravity unit)
private static final float SHAKE_THRESHOLD_GRAVITY = 2.7F;
private static final int SHAKE_SLOP_TIME_MS = 500;
private static final int SHAKE_COUNT_RESET_TIME_MS = 3000;
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 + SHAKE_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);
}
}
}
}
또한 Shake Detector의 인스턴스를 Sensor Manager에 등록해야 합니다.
// ShakeDetector initialization
mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
mShakeDetector = new ShakeDetector();
mShakeDetector.setOnShakeListener(new OnShakeListener() {
@Override
public void onShake(int count) {
handleShakeEvent(count);
}
});
mSensorManager.registerListener(mShakeDetector, mAccelerometer, SensorManager.SENSOR_DELAY_UI);
저는 대학 프로젝트를 위해 움직임 감지 및 흔들림 감지 앱을 개발하고 있습니다.
앱의 원래 타겟 외에, 저는 앱에서 라이브러리 부분(모션 및 흔들림 감지를 담당)을 분할하고 있습니다.이 코드는 소스포지에서 "벤더캐치"라는 프로젝트 이름으로 무료로 사용할 수 있습니다.제가 제작 중인 문서는 9월 중순경에 준비될 것입니다.http://sf.net/projects/bendercatch
흔들림을 감지하는 보다 정확한 방법을 사용합니다. 흔들림을 수행할 때 센서 이벤트와 X축 및 Y축에 존재하는 진동 사이의 힘 차이를 모두 모니터링합니다.그것은 심지어 흔들릴 때마다 소리를 낼 수도 있습니다.
terzigno [dot] com에서 이메일로 더 많이 물어보세요.
저는 수직과 수평의 흔들림을 감지하고 그것을 보여주는 작은 예를 썼습니다.Toast.
public class Accelerometerka2Activity extends Activity implements SensorEventListener {
private float mLastX, mLastY, mLastZ;
private boolean mInitialized;
private SensorManager mSensorManager;
private Sensor mAccelerometer;
private final float NOISE = (float) 8.0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mInitialized = false;
mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
mSensorManager.registerListener(this, mAccelerometer , SensorManager.SENSOR_DELAY_NORMAL);
}
protected void onResume() {
super.onResume();
mSensorManager.registerListener(this, mAccelerometer, SensorManager.SENSOR_DELAY_NORMAL);
}
protected void onPause() {
super.onPause();
mSensorManager.unregisterListener(this);
}
public void onAccuracyChanged(Sensor sensor, int accuracy) {
// can be safely ignored for this demo
}
public void onSensorChanged(SensorEvent event) {
float x = event.values[0];
float y = event.values[1];
float z = event.values[2];
if (!mInitialized) {
mLastX = x;
mLastY = y;
mLastZ = z;
mInitialized = true;
} else {
float deltaX = Math.abs(mLastX - x);
float deltaY = Math.abs(mLastY - y);
float deltaZ = Math.abs(mLastZ - z);
if (deltaX < NOISE) deltaX = (float)0.0;
if (deltaY < NOISE) deltaY = (float)0.0;
if (deltaZ < NOISE) deltaZ = (float)0.0;
mLastX = x;
mLastY = y;
mLastZ = z;
if (deltaX > deltaY) {
Toast.makeText(getBaseContext(), "Horizental", Toast.LENGTH_SHORT).show();
} else if (deltaY > deltaX) {
Toast.makeText(getBaseContext(), "Vertical", Toast.LENGTH_SHORT).show();
}
}
}
}
지진학을 사용할 수 있습니다.예제는 여기에서 찾을 수 있습니다.
여러 가지 구현을 시도해 보았지만, 저만의 구현을 공유하고 싶습니다.그것은 사용합니다.G-force임계값 계산을 위한 단위.이것은 무슨 일이 일어나고 있는지 좀 더 쉽게 이해할 수 있게 해주며 또한 좋은 임계값을 설정합니다.
단순히 G 힘의 증가를 등록하고 임계값을 초과할 경우 수신기를 트리거합니다.방향 임계값을 사용하지 않습니다. 좋은 흔들림을 등록하고 싶다면 그렇게 할 필요가 없기 때문입니다.
물론 당신은 이 청취자의 표준 등록 및 UN 등록이 필요합니다.Activity.
또한 필요한 임계값을 확인하려면 다음 앱을 추천합니다(저는 해당 앱에 연결되어 있지 않습니다).
public class UmitoShakeEventListener implements SensorEventListener {
/**
* The gforce that is necessary to register as shake. (Must include 1G
* gravity)
*/
private final float shakeThresholdInGForce = 2.25F;
private final float gravityEarth = SensorManager.GRAVITY_EARTH;
private OnShakeListener listener;
public void setOnShakeListener(OnShakeListener listener) {
this.listener = listener;
}
public interface OnShakeListener {
public void onShake();
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
// ignore
}
@Override
public void onSensorChanged(SensorEvent event) {
if (listener != null) {
float x = event.values[0];
float y = event.values[1];
float z = event.values[2];
float gX = x / gravityEarth;
float gY = y / gravityEarth;
float gZ = z / gravityEarth;
//G-Force will be 1 when there is no movement. (gravity)
float gForce = FloatMath.sqrt(gX * gX + gY * gY + gZ * gZ);
if (gForce > shakeThresholdInGForce) {
listener.onShake();
}
}
}
}
이에 대한 다른 코드는 다음과 같습니다.
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Handler;
public class AccelerometerListener implements SensorEventListener {
private SensorManager sensorManager;
private List<Sensor> sensors;
private Sensor sensor;
private long lastUpdate = -1;
private long currentTime = -1;
private Main parent;
private Timer timer;
private int shakes;
private static final Handler mHandler = new Handler();
private float last_x, last_y, last_z;
private float current_x, current_y, current_z, currenForce;
private static final int FORCE_THRESHOLD = 500;
private final int DATA_X = SensorManager.DATA_X;
private final int DATA_Y = SensorManager.DATA_Y;
private final int DATA_Z = SensorManager.DATA_Z;
public AccelerometerListener(Main parent) {
SensorManager sensorService = (SensorManager) parent
.getSystemService(Context.SENSOR_SERVICE);
this.sensorManager = sensorService;
if (sensorService == null)
return;
this.sensors = sensorManager.getSensorList(Sensor.TYPE_ACCELEROMETER);
if (sensors.size() > 0) {
sensor = sensors.get(0);
}
this.parent = parent;
}
public void start() {
if (sensor == null)
return;
sensorManager.registerListener(this, sensor,
SensorManager.SENSOR_DELAY_GAME);
}
public void stop() {
if (sensorManager == null)
return;
sensorManager.unregisterListener(this);
}
public void onAccuracyChanged(Sensor s, int valu) {
}
public void onSensorChanged(SensorEvent event) {
if (event.sensor.getType() != Sensor.TYPE_ACCELEROMETER)
return;
currentTime = System.currentTimeMillis();
if ((currentTime - lastUpdate) > 50) {
long diffTime = (currentTime - lastUpdate);
lastUpdate = currentTime;
current_x = event.values[DATA_X];
current_y = event.values[DATA_Y];
current_z = event.values[DATA_Z];
currenForce = Math.abs(current_x + current_y + current_z - last_x
- last_y - last_z)
/ diffTime * 10000;
if (currenForce > FORCE_THRESHOLD) {
shakeDetected();
}
last_x = current_x;
last_y = current_y;
last_z = current_z;
}
}
private void shakeDetected() {
shakes++;
if (shakes == 1) {
if (timer != null) {
timer.cancel();
}
timer = new Timer();
timer.schedule(new TimerTask() {
@Override
public void run() {
if (shakes > 3) {
mHandler.post(new Runnable() {
public void run() {
// shake
}
});
}
shakes = 0;
}
}, 500);
}
}
}
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;
}
}
package com.example.shakingapp;
import android.app.Activity;
import android.graphics.Color;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Toast;
public class MainActivity extends Activity implements SensorEventListener {
private SensorManager sensorManager;
private boolean color = false;
private View view;
private long lastUpdate;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
view = findViewById(R.id.textView);
view.setBackgroundColor(Color.GREEN);
sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
lastUpdate = System.currentTimeMillis();
}
@Override
public void onSensorChanged(SensorEvent event) {
if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
getAccelerometer(event);
}
}
private void getAccelerometer(SensorEvent event) {
float[] values = event.values;
// Movement
float x = values[0];
float y = values[1];
float z = values[2];
System.out.println(x);
System.out.println(y);
System.out.println(z);
System.out.println(SensorManager.GRAVITY_EARTH );
float accelationSquareRoot = (x * x + y * y + z * z)
/ (SensorManager.GRAVITY_EARTH * SensorManager.GRAVITY_EARTH);
long actualTime = System.currentTimeMillis();
if (accelationSquareRoot >= 2) //
{
if (actualTime - lastUpdate < 200) {
return;
}
lastUpdate = actualTime;
Toast.makeText(this, "Device was shuffed "+accelationSquareRoot, Toast.LENGTH_SHORT)
.show();
if (color) {
view.setBackgroundColor(Color.GREEN);
} else {
view.setBackgroundColor(Color.RED);
}
color = !color;
}
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
@Override
protected void onResume() {
super.onResume();
// register this class as a listener for the orientation and
// accelerometer sensors
sensorManager.registerListener(this,
sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
SensorManager.SENSOR_DELAY_NORMAL);
}
@Override
protected void onPause() {
// unregister listener
super.onPause();
sensorManager.unregisterListener(this);
}
}
셰이커.자바
import java.util.ArrayList;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
public class Shaker implements SensorEventListener{
private static final String SENSOR_SERVICE = Context.SENSOR_SERVICE;
private SensorManager sensorMgr;
private Sensor mAccelerometer;
private boolean accelSupported;
private long timeInMillis;
private long threshold;
private OnShakerTreshold listener;
ArrayList<Float> valueStack;
public Shaker(Context context, OnShakerTreshold listener, long timeInMillis, long threshold) {
try {
this.timeInMillis = timeInMillis;
this.threshold = threshold;
this.listener = listener;
if (timeInMillis<100){
throw new Exception("timeInMillis < 100ms");
}
valueStack = new ArrayList<Float>((int)(timeInMillis/100));
sensorMgr = (SensorManager) context.getSystemService(SENSOR_SERVICE);
mAccelerometer = sensorMgr.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
} catch (Exception e){
e.printStackTrace();
}
}
public void start() {
try {
accelSupported = sensorMgr.registerListener(this, mAccelerometer, SensorManager.SENSOR_DELAY_GAME);
if (!accelSupported) {
stop();
throw new Exception("Sensor is not supported");
}
} catch (Exception e){
e.printStackTrace();
}
}
public void stop(){
try {
sensorMgr.unregisterListener(this, mAccelerometer);
} catch (Exception e){
e.printStackTrace();
}
}
@Override
protected void finalize() throws Throwable {
try {
stop();
} catch (Exception e){
e.printStackTrace();
}
super.finalize();
}
long lastUpdate = 0;
private float last_x;
private float last_y;
private float last_z;
public void onSensorChanged(SensorEvent event) {
try {
if (event.sensor == mAccelerometer) {
long curTime = System.currentTimeMillis();
if ((curTime-lastUpdate)>getNumberOfMeasures()){
lastUpdate = System.currentTimeMillis();
float[] values = event.values;
if (valueStack.size()>(int)getNumberOfMeasures())
valueStack.remove(0);
float x = (int)(values[SensorManager.DATA_X]);
float y = (int)(values[SensorManager.DATA_Y]);
float z = (int)(values[SensorManager.DATA_Z]);
float speed = Math.abs((x+y+z) - (last_x + last_y + last_z));
valueStack.add(speed);
String posText = String.format("X:%4.0f Y:%4.0f Z:%4.0f", (x-last_x), (y-last_y), (z-last_z));
last_x = (x);
last_y = (y);
last_z = (z);
float sumOfValues = 0;
float avgOfValues = 0;
for (float f : valueStack){
sumOfValues = (sumOfValues+f);
}
avgOfValues = sumOfValues/(int)getNumberOfMeasures();
if (avgOfValues>=threshold){
listener.onTreshold();
valueStack.clear();
}
System.out.println(String.format("M: %+4d A: %5.0f V: %4.0f %s", valueStack.size(),avgOfValues,speed,posText));
}
}
} catch (Exception e){
e.printStackTrace();
}
}
private long getNumberOfMeasures() {
return timeInMillis/100;
}
public void onAccuracyChanged(Sensor sensor, int accuracy) {}
public interface OnShakerTreshold {
public void onTreshold();
}
}
기본 활동.java
public class MainActivity extends Activity implements OnShakerTreshold{
private Shaker s;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
s = new Shaker(getApplicationContext(), this, 5000, 20);
// 5000 = 5 second of shaking
// 20 = minimal threshold (very angry shaking :D)
// beware screen rotation reset counter
}
@Override
protected void onResume() {
s.start();
super.onResume();
}
@Override
protected void onPause() {
s.stop();
super.onPause();
}
public void onTreshold() {
System.out.println("FIRE LISTENER");
RingtoneManager.getRingtone(getApplicationContext(), RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)).play();
}
}
즐겁게 보내세요.
// 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;
}
}
}
}
은 음으로구합니로 .SensorEventListener그리고 그것을 얻으세요.accelerometerdata. 가 있으면 축의 방향. 일단 손에 넣으면 특정 축에서 가속도 방향(신호)이 갑자기 변하는 것을 감시해야 합니다.그것은 그들에게 좋은 표시가 될 것입니다.'shake'장치의 이동
나와 함께 일하는 것 v.good 언급
public class ShakeEventListener implements SensorEventListener {
public final static int SHAKE_LIMIT = 15;
public final static int LITTLE_SHAKE_LIMIT = 5;
private SensorManager mSensorManager;
private float mAccel = 0.00f;
private float mAccelCurrent = SensorManager.GRAVITY_EARTH;
private float mAccelLast = SensorManager.GRAVITY_EARTH;
private ShakeListener listener;
public interface ShakeListener {
public void onShake();
public void onLittleShake();
}
public ShakeEventListener(ShakeListener l) {
Activity a = (Activity) l;
mSensorManager = (SensorManager) a.getSystemService(Context.SENSOR_SERVICE);
listener = l;
registerListener();
}
public ShakeEventListener(Activity a, ShakeListener l) {
mSensorManager = (SensorManager) a.getSystemService(Context.SENSOR_SERVICE);
listener = l;
registerListener();
}
public void registerListener() {
mSensorManager.registerListener(this, mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);
}
public void unregisterListener() {
mSensorManager.unregisterListener(this);
}
public void onSensorChanged(SensorEvent se) {
float x = se.values[0];
float y = se.values[1];
float z = se.values[2];
mAccelLast = mAccelCurrent;
mAccelCurrent = (float) FloatMath.sqrt(x*x + y*y + z*z);
float delta = mAccelCurrent - mAccelLast;
mAccel = mAccel * 0.9f + delta;
if(mAccel > SHAKE_LIMIT)
listener.onShake();
else if(mAccel > LITTLE_SHAKE_LIMIT)
listener.onLittleShake();
}
public void onAccuracyChanged(Sensor sensor, int accuracy) {}
}
당신은 오픈 소스 소형 버스를 시도해 보는 것이 좋을 것입니다.흔들림 감지는 이 정도로 쉽습니다.
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();
}
}
진동 감지를 위해 지진을 사용합니다.
저는 @peceps의 답변을 수정하여 코틀린 버전으로 만듭니다.또한 라이프사이클을 인식할 수 있도록 LifecycleOwner 매개 변수를 추가합니다.
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
}
}
활동에 다음 코드를 추가하여 흔들림 이벤트를 감지하도록 합니다.
ShakeEventListener(this, sensorManager){
// onShake logic
}
언급URL : https://stackoverflow.com/questions/2317428/how-to-refresh-app-upon-shaking-the-device
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