Java 震动传感器不工作
我想让我的震动传感器工作。在晃动我的安卓手机使事情发生时,现在我晃动手机时什么也没发生。我的代码如下:Java 震动传感器不工作,java,android,sensors,gravity,shake,Java,Android,Sensors,Gravity,Shake,我想让我的震动传感器工作。在晃动我的安卓手机使事情发生时,现在我晃动手机时什么也没发生。我的代码如下: private SensorManager mSensorManager; private float mAccel; // acceleration apart from gravity private float mAccelCurrent; // current acceleration including gravity private float mAccel
private SensorManager mSensorManager;
private float mAccel; // acceleration apart from gravity
private float mAccelCurrent; // current acceleration including gravity
private float mAccelLast; // last acceleration including gravity
和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;
论文明
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 = FloatMath.sqrt(x*x + y*y + z*z);
float delta = mAccelCurrent - mAccelLast;
mAccel = mAccel * 0.9f + delta * 0.1f; // perform low-cut filter
}
public void onAccuracyChanged(Sensor sensor, int accuracy) {
if(mAccel > 0.1)
{
Toast toast = Toast.makeText(getApplicationContext(), "Device has shaken.", Toast.LENGTH_LONG); toast.show();
}
}
};
您好,这里我添加了震动传感器的示例源代码。请尝试此示例。希望它能对你有所帮助。如果你有任何问题,请告诉我。谢谢 main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@+id/footer"
android:padding="10dp"
android:background="#eaeae8" >
<TextView
android:id="@+id/txtSettings"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp"
android:text="Enable and Disable the Sensor">
</TextView>
<TextView
android:id="@+id/label"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="10dip"
android:textSize="16sp"
android:textStyle="bold" >
</TextView>
<RadioGroup
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" >
<RadioButton
android:id="@+id/enable"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Sensor Enable" />
<RadioButton
android:id="@+id/disable"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Sensor Disable" />
</RadioGroup>
</RelativeLayout>
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);
}
}
导入android.app.Activity;
导入android.graphics.Color;
导入android.hardware.Sensor;
导入android.hardware.SensorEvent;
导入android.hardware.SensorEventListener;
导入android.hardware.SensorManager;
导入android.os.Bundle;
导入android.view.view;
导入android.view.Window;
导入android.view.WindowManager;
导入android.widget.RadioGroup;
导入android.widget.RadioGroup.OnCheckedChangeListener;
导入android.widget.Toast;
公共类SensorTestActivity扩展活动实现SensorEventListener{
私人传感器管理器传感器管理器;
私有布尔颜色=假;
私人视野;
私人长期更新;
静态布尔启用传感器=真;
/**在首次创建活动时调用*/
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
requestWindowFeature(窗口。功能\u无\u标题);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_全屏,
WindowManager.LayoutParams.FLAG(全屏);
setContentView(R.layout.main);
视图=findViewById(R.id.label);
视图.setBackgroundColor(颜色.绿色);
sensorManager=(sensorManager)getSystemService(传感器服务);
sensorManager.registerListener(此,
sensorManager.getDefaultSensor(传感器类型\加速计),
传感器管理器。传感器延迟(正常);
lastUpdate=System.currentTimeMillis();
射线组传感器设置=(射线组)findViewById(R.id.sensorSettings);
sensorSettings.setOnCheckedChangeListener(新的OnCheckedChangeListener(){
@凌驾
检查更改后的公共无效(RadioGroup组,int checkedId){
//checkedId是选中的单选按钮
开关(检查EDID){
案例R.id.enable:
启用传感器=真;
打破
案例R.id.disable:
启用传感器=错误;
打破
}
}
});
}
@凌驾
传感器更改时的公共无效(传感器事件){
if(event.sensor.getType()==sensor.TYPE\u加速计){
如果(启用传感器){
(事件),;
}
}
}
专用传感器(传感器事件){
float[]值=event.values;
//运动
浮点x=值[0];
浮动y=值[1];
浮动z=数值[2];
浮动加速度平方根=(x*x+y*y+z*z)
/(SensorManager.GRAVITY_EARTH*SensorManager.GRAVITY_EARTH);
长实际时间=System.currentTimeMillis();
如果(加速度平方根>=2)//
{
如果(实际时间-上次更新<200){
返回;
}
lastUpdate=实际时间;
Toast.makeText(此“设备已震动”,Toast.LENGTH\u SHORT)
.show();
如果(颜色){
视图.setBackgroundColor(颜色.绿色);
}否则{
视图.setBackgroundColor(颜色.红色);
}
颜色=!颜色;
}
}
@凌驾
精度更改时的公共无效(传感器,int精度){
}
@凌驾
受保护的void onResume(){
super.onResume();
//将此类注册为方向和方向的侦听器
//加速度传感器
sensorManager.registerListener(此,
sensorManager.getDefaultSensor(传感器类型\加速计),
传感器管理器。传感器延迟(正常);
}
@凌驾
受保护的void onPause(){
//取消注册侦听器
super.onPause();
sensorManager.UnregistereListener(此);
}
}
请添加AndroidManifest权限
<uses-permission android:name="android.permission.VIBRATE" />
谢谢!正是我想要的,+1可以像charmCan一样工作。我再问你一件事,我应该如何参考传感器,所以当我点击按钮来激活和取消激活震动效应时,比如<代码>开关.setOnClickListener(新视图.OnClickListener(){@Override public void onClick(视图v){if(sensorIsOn){//停用它}否则{//激活它}})代码>如果被激活,那么它将如上所述。您能帮我在代码中添加一个开关单击侦听器吗?提前谢谢。您好,很抱歉响应太晚。我添加了为您添加的开关setOnCheckedChangeListener。请试着让我知道。谢谢