[英]How to set a minimum amount of time between steps for a Step Counter?
I created a step counter and I noticed that you are able to make it count six steps in under a second by shaking the device. 我创建了一个计步器,我注意到您可以通过摇动设备使其在一秒钟内计数六步。 How could you set a minimum amount of time between each step to make it more accurate? 您如何在每个步骤之间设置最短的时间以使其更准确? For example make it so that there has to be at least a quarter of a second that went by before a next step can be counted as a step. 例如,使它至少要经过四分之一秒才能将下一步骤计为一个步骤。 If this isn't a good solution to making it more accurate then please let me know. 如果这不是提高准确性的好方法,请告诉我。
Below is the code, it includes a timer that just counts the total amount of steps every ten minutes, so just ignore that. 下面是代码,它包含一个计时器,该计时器仅每十分钟计算一次总步数,因此请忽略它。
public class StepCounterManager implements SensorEventListener{
boolean timerStarted = false;
private float initCount, finalCount, currentCount;
public Activity activity;
private boolean activityRunning;
private SensorManager sensorManager;
public StepCounterManager(Activity activity){
this.activity = activity;
}
public void stepCounterInit(){
sensorManager = (SensorManager) activity.getSystemService(Context.SENSOR_SERVICE);
timer();
timerStarted = true;
}
//timer starts at the start of app and restarts every 10 minutes
public void timer(){
Timer t = new Timer(false);
Toast.makeText(this.activity, "timer started", Toast.LENGTH_SHORT).show();
t.schedule(new TimerTask() {
@Override
public void run() {
activity.runOnUiThread(new Runnable() {
public void run() {
getFinalStepCount();
}
});
}
}, 600000);
}
public void register(){
activityRunning = true;
Sensor countSensor = sensorManager.getDefaultSensor(Sensor.TYPE_STEP_COUNTER);
if(countSensor != null){
sensorManager.registerListener(this, countSensor, SensorManager.SENSOR_DELAY_UI);
} else {
Toast.makeText(this.activity, "Count sensor not available", Toast.LENGTH_SHORT).show();
}
}
public void unRegister(){
activityRunning = false;
}
@Override
public void onSensorChanged(SensorEvent event) {
if(activityRunning){
currentCount = event.values[0];
System.out.println(currentCount);
}
if(timerStarted){
resetInitialStepCount();
}
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
//a new initial count has to be made because the step count can only reset after a reboot
public void resetInitialStepCount(){
initCount = currentCount;
Toast.makeText(this.activity, "initial count is: " + initCount, Toast.LENGTH_SHORT).show();
timerStarted = false;
}
public void getFinalStepCount(){
finalCount = currentCount-initCount;
Toast.makeText(this.activity, "final count is: " + finalCount, Toast.LENGTH_SHORT).show();
resetInitialStepCount();
timer();
//todo: send finalcount to database
}
} }
public class StepCounterManager implements SensorEventListener{
boolean timerStarted = false;
private float initCount, finalCount, currentCount;
public Activity activity;
private boolean activityRunning;
private boolean hasRecorded;
private SensorManager sensorManager;
private int storedSteps;
public StepCounterManager(Activity activity){
this.activity = activity;
this.hasRecorded = false;
this.storedSteps = 0;
}
public void stepCounterInit(){
sensorManager = (SensorManager) activity.getSystemService(Context.SENSOR_SERVICE);
timer();
timerStarted = true;
}
//timer starts at the start of app and restarts every 10 minutes
public void timer(){
Timer t = new Timer(false);
Toast.makeText(this.activity, "timer started", Toast.LENGTH_SHORT).show();
t.schedule(new TimerTask() {
@Override
public void run() {
activity.runOnUiThread(new Runnable() {
public void run() {
getFinalStepCount();
}
});
}
}, 600000);
}
public void register(){
activityRunning = true;
Sensor countSensor = sensorManager.getDefaultSensor(Sensor.TYPE_STEP_COUNTER);
if(countSensor != null){
sensorManager.registerListener(this, countSensor, SensorManager.SENSOR_DELAY_UI);
} else {
Toast.makeText(this.activity, "Count sensor not available", Toast.LENGTH_SHORT).show();
}
}
public void unRegister(){
activityRunning = false;
}
@Override
public void onSensorChanged(SensorEvent event) {
if(hasRecorded == false){
hasRecorded = true;
BlockRecording();
if(activityRunning){
int TempCurrent = event.values[0] - storedSteps;
currentCount = currentCount + (event.values[0] - TempCurrent);
System.out.println(currentCount);
}
if(timerStarted){
resetInitialStepCount();
}
storedSteps = event.values[0];
}else{
}
}
public void BlockRecording(){
Timer t = new Timer(false);
t.schedule(new TimerTask() {
@Override
public void run() {
activity.runOnUiThread(new Runnable() {
public void run() {
hasRecorded = false;
}
});
}
}, 250);
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
//a new initial count has to be made because the step count can only reset after a reboot
public void resetInitialStepCount(){
initCount = currentCount;
Toast.makeText(this.activity, "initial count is: " + initCount, Toast.LENGTH_SHORT).show();
timerStarted = false;
}
public void getFinalStepCount(){
finalCount = currentCount-initCount;
Toast.makeText(this.activity, "final count is: " + finalCount, Toast.LENGTH_SHORT).show();
resetInitialStepCount();
timer();
//todo: send finalcount to database
}
}
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