我正在实现一个带有振动的演示TIMER，并在特定条件下使用它，当我按下开始按钮后，我的计时器开始运行...当我使用停止按钮停止它时，它就会简单地停止。
现在我需要集成一种功能，在人们移动设备（计时器正在运行期间）之后，它应该重置计时器。它的工作非常良好，但加速度计功能并不是完全准确的。它需要一个快速的抽拉来重置计时器。
请为此提供一个好的解决方案。
以下是我的代码：
现在我需要集成一种功能，在人们移动设备（计时器正在运行期间）之后，它应该重置计时器。它的工作非常良好，但加速度计功能并不是完全准确的。它需要一个快速的抽拉来重置计时器。
请为此提供一个好的解决方案。
以下是我的代码：
public class SensorAccelerometer implements SensorEventListener {
private Context context;
private SensorManager sensorManager;
private Sensor accelerometer;
private TextView timelabel;
private Handler mHandler;
Runnable run;
private float mLastX, mLastY, mLastZ;
private final float NOISE = (float) 3.0;
public SensorAccelerometer(Context context) {
}
public SensorAccelerometer(Context context,TextView timelabel, Handler mHandler2, Runnable mUpdateTimeTask) {
// TODO Auto-generated constructor stub
this.context = context;
this.timelabel = timelabel;
this.mHandler = mHandler2;
this.run = mUpdateTimeTask;
initialiseSensor();
}
public void initialiseSensor(){
sensorManager = (SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
accelerometer = sensorManager.getDefaultSensor(Sensor.TYPE_ALL);
sensorManager.registerListener(this, accelerometer,SensorManager.SENSOR_DELAY_NORMAL);
}
public void unregisterSensor(){
sensorManager.unregisterListener(this);
Toast.makeText(context, "Sensor Stopped..", Toast.LENGTH_SHORT).show();
}
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
public void onSensorChanged(SensorEvent event) {
float x = event.values[0];
float y = event.values[1];
float z = event.values[2];
mAccelLast=mAccelCurrent;
mAccelCurrent = FloatMath.sqrt(x*x + y*y + z*z);
float delta = mAccelCurrent - mAccelLast;
mAccel = mAccel * 0.9f + delta;
if(mAccel>0.5){
TimerActivity.mStartTime = SystemClock.uptimeMillis();
mHandler.removeCallbacks(run);
mHandler.postDelayed(run, 100);
}
计时器活动
定时器活动
public class TimerActivity extends Activity {
public static long mStartTime = 0L;
private TextView mTimerLabel;
private Handler mHandler = new Handler();
String timerStop1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mTimerLabel = (TextView) findViewById(R.id.textTimer);
Button timerStartButton = (Button) findViewById(R.id.btnTimer);
timerStartButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view){
if(mStartTime == 0L){
mStartTime = SystemClock.uptimeMillis();
mHandler.removeCallbacks(mUpdateTimeTask);
mHandler.postDelayed(mUpdateTimeTask, 100);
//activating the sensor and the acclerometer
SensorAccelerometer acc = new SensorAccelerometer(view.getContext(), mTimerLabel,mHandler,mUpdateTimeTask);
}
}
});
Button timerStopButton = (Button) findViewById(R.id.btnTimerStop);
timerStopButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view){
mHandler.removeCallbacks(mUpdateTimeTask);
mTimerLabel.setText(timerStop1);
mStartTime = 0L;
SensorAccelerometer scc = new SensorAccelerometer(view.getContext(),mTimerLabel,mHandler,mUpdateTimeTask);
scc.unregisterSensor();
}
});
}
private Runnable mUpdateTimeTask = new Runnable(){
public void run() {
final long start = mStartTime;
long millis = SystemClock.uptimeMillis()- start;
int seconds = (int) (millis / 1000);
int minutes = seconds / 60;
seconds = seconds % 60;
mTimerLabel.setText("" + minutes + ":"
+ String.format("%02d", seconds));
timerStop1 = minutes + ":"
+ String.format("%02d", seconds);
mHandler.postDelayed(this, 200);
}
};
protected void onPause() {
super.onPause();
SensorAccelerometer scc = new SensorAccelerometer(this,mTimerLabel,mHandler,mUpdateTimeTask);
scc.unregisterSensor();
};
}