喜在这里，我补充示例源代码抖动传感器。请尝试这个例子。希望对你有帮助。请让我知道你有没有问题。
main.xml中
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@ id/footer"
android:padding="10dp"
android:background="#eaeae8" >
android:id="@ id/txtSettings"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp"
android:text="Enable and Disable the Sensor">
android:id="@ id/label"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="10dip"
android:textSize="16sp"
android:textStyle="bold" >
android:id="@ id/sensorSettings"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@ id/txtSettings"
android:layout_below="@ id/txtSettings"
android:layout_marginTop="18dp" >
android:id="@ id/enable"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Sensor Enable" />
android:id="@ id/disable"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Sensor Disable" />
SensorTestActivity.java
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.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.Toast;
public class SensorTestActivity extends Activity implements SensorEventListener {
private SensorManager sensorManager;
private boolean color = false;
private View view;
private long lastUpdate;
static boolean enableSensor = true;
/** 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();
RadioGroup sensorSettings =(RadioGroup)findViewById(R.id.sensorSettings);
sensorSettings.setOnCheckedChangeListener(new OnCheckedChangeListener(){
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
// checkedId is the RadioButton selected
switch(checkedId) {
case R.id.enable:
enableSensor = true;
break;
case R.id.disable:
enableSensor = false;
break;
}
}
});
}
@Override
public void onSensorChanged(SensorEvent event) {
if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
if(enableSensor){
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);
}
}
请添加AndroidManifest权限。