import com.google.android.things.userdriver.UserSensorDriver; //导入依赖的package包/类
/**
 * Build User sesnor to be registered with the Android Things framework
 * @param adxl362 instance of core ADXL362.java
 */
private static UserSensor build(final Adxl362 adxl362) {
    return UserSensor.builder()
            .setName(DRIVER_NAME)
            .setVendor(DRIVER_VENDOR)
            .setVersion(DRIVER_VERSION)
            .setCustomType(Sensor.TYPE_DEVICE_PRIVATE_BASE,
                    "vaf.vishal.adxl", Sensor.REPORTING_MODE_CONTINUOUS)
            .setDriver(new UserSensorDriver() {
                @Override
                public UserSensorReading read() throws IOException {
                    float[] values = adxl362.readXYZTempData();
                    return new UserSensorReading(values);
                }
            })
            .build();
}
 

import com.google.android.things.userdriver.UserSensorDriver; //导入依赖的package包/类
private static UserSensor build(final Adxl362 adxl362) {
    return UserSensor.builder()
            .setName(DRIVER_NAME)
            .setVendor(DRIVER_VENDOR)
            .setVersion(DRIVER_VERSION)
            .setCustomType(Sensor.TYPE_DEVICE_PRIVATE_BASE,
                    "vaf.vishal.adxl", Sensor.REPORTING_MODE_CONTINUOUS)
            .setDriver(new UserSensorDriver() {
                @Override
                public UserSensorReading read() throws IOException {
                    float[] values = adxl362.readXYZTempData();
                    return new UserSensorReading(values);
                }
            })
            .build();
}
 

import com.google.android.things.userdriver.UserSensorDriver; //导入依赖的package包/类
static UserSensor build(final LSM9DS0 lsm9DS0) {
    return UserSensor.builder()
            .setType(Sensor.TYPE_ACCELEROMETER)
            .setName(DRIVER_NAME)
            .setVendor(DRIVER_VENDOR)
            .setVersion(DRIVER_VERSION)
            .setRequiredPermission(DRIVER_REQUIRED_PERMISSION)

            .setMaxRange(DRIVER_MAX_RANGE)
            .setMinDelay(DRIVER_MIN_DELAY_US)
            .setMaxDelay(DRIVER_MAX_DELAY_US)

            .setUuid(UUID.randomUUID())
            .setDriver(new UserSensorDriver() {
                @Override
                public UserSensorReading read() throws IOException {
                    lsm9DS0.readAccel();
                    lsm9DS0.readMag();
                    lsm9DS0.readMag();
                    lsm9DS0.readTemp();

                    //Log.i(TAG,"Read sensor info");
                    float[] sample = new float[] { 0.0f, 0.0f, 0.0f };

                    return new UserSensorReading(
                            sample,
                            SensorManager.SENSOR_STATUS_ACCURACY_HIGH); // 120Hz
                }

                @Override
                public void setEnabled(boolean enabled) throws IOException {
                    if (enabled) {
                        //mma7660fc.setMode(Mma7660Fc.MODE_ACTIVE);
                    } else {
                        //mma7660fc.setMode(Mma7660Fc.MODE_STANDBY);
                    }
                }
            })
            .build();
}
 

import com.google.android.things.userdriver.UserSensorDriver; //导入依赖的package包/类
private static UserSensor build(final Hcsr04 hcsr04) {
    return UserSensor.builder()
            .setName(DRIVER_NAME)
            .setVersion(DRIVER_VERSION)
            .setType(Sensor.TYPE_PROXIMITY)
            .setDriver(new UserSensorDriver() {
                @Override
                public UserSensorReading read() throws IOException {
                    float[] distance = hcsr04.getProximityDistance();
                    return new UserSensorReading(distance);
                }
            })
            .build();
}
 

import com.google.android.things.userdriver.UserSensorDriver; //导入依赖的package包/类
static UserSensor build(final Mma7660Fc mma7660fc) {
    return new UserSensor.Builder()
            .setType(Sensor.TYPE_ACCELEROMETER)
            .setName(DRIVER_NAME)
            .setVendor(DRIVER_VENDOR)
            .setVersion(DRIVER_VERSION)
            .setMaxRange(DRIVER_MAX_RANGE)
            .setResolution(DRIVER_RESOLUTION)
            .setPower(DRIVER_POWER)
            .setMinDelay(DRIVER_MIN_DELAY_US)
            .setRequiredPermission(DRIVER_REQUIRED_PERMISSION)
            .setMaxDelay(DRIVER_MAX_DELAY_US)
            .setUuid(UUID.randomUUID())
            .setDriver(new UserSensorDriver() {
                @Override
                public UserSensorReading read() throws IOException {
                    float[] sample = mma7660fc.readSample();
                    for (int i=0; i<sample.length; i++) {
                        sample[i] = sample[i] * SensorManager.GRAVITY_EARTH;
                    }
                    return new UserSensorReading(
                            sample,
                            SensorManager.SENSOR_STATUS_ACCURACY_HIGH); // 120Hz
                }

                @Override
                public void setEnabled(boolean enabled) throws IOException {
                    if (enabled) {
                        mma7660fc.setMode(Mma7660Fc.MODE_ACTIVE);
                    } else {
                        mma7660fc.setMode(Mma7660Fc.MODE_STANDBY);
                    }
                }
            })
            .build();
}