如何在传感器中添加单击方法

我已成功，与其他程序员一起帮助创建以下代码：

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 SensorTestActivity 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) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.main); view = findViewById(R.id.label); view.setBackgroundColor(Color.GREEN); sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE); sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL); 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]; 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 has shaken", 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); } } 

现在我想添加类似的东西..

 Switch.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (sensorIsOn) { //deactivate it } else { //activate it } } }); 

我想点击一个按钮和deseable传感器，然后点击再次启用它！

Answer 1

您应该只注册或取消注册该侦听器。 正如你应该在onPause和onResume（我想）。

 mSensorManager.registerListener(this, jAccelerometer, SensorManager.SENSOR_DELAY_NORMAL); mSensorManager.unregisterListener(this); 

Answer 2

在onCreate()方法中，在注册传感器的侦听器后，将Switch的Tag按钮设置为true：

 public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.main); view = findViewById(R.id.label); view.setBackgroundColor(Color.GREEN); sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE); sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL); lastUpdate = System.currentTimeMillis(); Button Switch = (Button) findViewById(R.id.switch_button); Switch.setTag(true); //set the listener for your Switch button here } 

并在onClick()方法：尝试此代码：

 Switch.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { boolean isSensorActivated = (boolean) v.getTag(); if(isSensorActivated) { mSensorManager.registerListener(this, jAccelerometer, SensorManager.SENSOR_DELAY_NORMAL); } else { mSensorManager.unregisterListener(this); } v.setTag(!isSensorActivated); } });