Android 计步器不工作，未出现在 SensorManager 中

Question

我正在尝试在 Android 中制作一个简单的计步器，我目前正在使用 Oreo 并使用 Pixel 2 进行模拟 API 29。问题是当我调用 sensorManager 时，它根本不起作用STEP_COUNTER 或 STEP_DETECTOR 均未列出传感器。我一步一步地按照不同的教程进行操作，但没有用。有谁知道可能是什么问题？这是我的代码和清单，以及我正在谈论的列表，

我的activityStepsActivity.java

public class StepsActivity extends AppCompatActivity implements SensorEventListener {

    SensorManager sm;
    Sensor sensor;
    TextView tv_steps_count;
    int counter=0;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_steps);

        if(ContextCompat.checkSelfPermission(this, Manifest.permission.ACTIVITY_RECOGNITION) == PackageManager.PERMISSION_DENIED){
            //ask for permission
            requestPermissions(new String[]{Manifest.permission.ACTIVITY_RECOGNITION},Sensor.TYPE_STEP_COUNTER);
        }

        tv_steps_count = (TextView) findViewById(R.id.tv_steps_count);

        sm = (SensorManager) getSystemService(SENSOR_SERVICE);
        if(sm.getDefaultSensor(Sensor.TYPE_STEP_COUNTER)!=null){
            sensor = (Sensor) sm.getDefaultSensor(Sensor.TYPE_STEP_COUNTER);
        }else if(sm.getDefaultSensor(Sensor.TYPE_STEP_DETECTOR)!=null){
            sensor =(Sensor) sm.getDefaultSensor(Sensor.TYPE_STEP_DETECTOR);
        }

        findViewById(R.id.backBTN).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                finish();

            }
        });
    }

    @Override
    public void onSensorChanged(SensorEvent sensorEvent) {
            tv_steps_count.setText(""+sensorEvent.values[0]);

    }

    @Override
    public void onAccuracyChanged(Sensor sensor, int i) {

    }

    @Override
    public void onPause() {
        stop();
        super.onPause();
    }

    @Override
    public void onResume() {
        start();
        super.onResume();
    }

    private void start() {
        sm.registerListener(this, sensor, sm.SENSOR_DELAY_FASTEST);
    }

    private void stop() {
        sm.unregisterListener(this);
    }
}

我的清单（只是与此相关的部分）

...
<uses-feature
        android:name="android.hardware.sensor.accelerometer"
        android:required="true" />
    <uses-feature
        android:name="android.hardware.sensor.stepcounter"
        android:required="true"/>
   <uses-feature
       android:name="android.hardware.sensor.stepdetector"
       android:required="true"/>

    <uses-permission android:name="android.permission.ACTIVITY_RECOGNITION"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WRITE_CALENDAR" />
    <uses-permission android:name="android.permission.READ_CALENDAR" />
    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
    <uses-permission android:name="com.google.android.gms.permission.ACTIVITY_RECOGNITION" />
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.VIBRATE" />

    <uses-feature
        android:name="android.hardware.sensor.accelerometer"
        android:required="true" />

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WRITE_CALENDAR" />
    <uses-permission android:name="android.permission.READ_CALENDAR" />
    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
    <uses-permission android:name="com.google.android.gms.permission.ACTIVITY_RECOGNITION" />
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.VIBRATE" />
...
<uses-feature
        android:name="android.hardware.sensor.accelerometer"
        android:required="true" />
    <uses-feature android:name="android.hardware.sensor.stepcounter"
        android:required="true"/>
    <uses-feature android:name="android.hardware.sensor.stepdetector"
        android:required="true"/>
...

以及描绘调试器问题的屏幕截图

Answer 1

问题是模拟器不支持STEP_COUNTER或STEP_DETECTOR。您需要在硬件支持这两个传感器的真实设备上测试此功能。

Android 计步器不工作，未出现在 SensorManager 中

Android Step Counter not working, not appearing in SensorManager

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