// TODO(): The following arrays are fragile and error-prone. This needs to be refactored.
// Note: This needs to be updated, whenever a new sensor is added.
- private static int[] sSensorReportingModes = {
- REPORTING_MODE_CONTINUOUS, REPORTING_MODE_CONTINUOUS, REPORTING_MODE_CONTINUOUS,
- REPORTING_MODE_CONTINUOUS, REPORTING_MODE_ON_CHANGE, REPORTING_MODE_CONTINUOUS,
- REPORTING_MODE_ON_CHANGE, REPORTING_MODE_ON_CHANGE, REPORTING_MODE_CONTINUOUS,
- REPORTING_MODE_CONTINUOUS, REPORTING_MODE_CONTINUOUS, REPORTING_MODE_ON_CHANGE,
- REPORTING_MODE_ON_CHANGE, REPORTING_MODE_CONTINUOUS, REPORTING_MODE_CONTINUOUS,
- REPORTING_MODE_CONTINUOUS, REPORTING_MODE_ONE_SHOT };
-
- // Note: This needs to be updated, whenever a new sensor is added.
- // Holds the maximum length of the values array associated with {@link SensorEvent} or
- // {@link TriggerEvent} for the Sensor
- private static int[] sMaxLengthValuesArray = {
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 5, 3, 3,
- 6, 4, 6, 1 };
+ // Holds the reporting mode and maximum length of the values array
+ // associated with
+ // {@link SensorEvent} or {@link TriggerEvent} for the Sensor
+ private static final int[] sSensorReportingModes = {
+ 0, 0, // padding because sensor types start at 1
+ REPORTING_MODE_CONTINUOUS, 3, // SENSOR_TYPE_ACCELEROMETER
+ REPORTING_MODE_CONTINUOUS, 3, // SENSOR_TYPE_GEOMAGNETIC_FIELD
+ REPORTING_MODE_CONTINUOUS, 3, // SENSOR_TYPE_ORIENTATION
+ REPORTING_MODE_CONTINUOUS, 3, // SENSOR_TYPE_GYROSCOPE
+ REPORTING_MODE_ON_CHANGE, 3, // SENSOR_TYPE_LIGHT
+ REPORTING_MODE_CONTINUOUS, 3, // SENSOR_TYPE_PRESSURE
+ REPORTING_MODE_ON_CHANGE, 3, // SENSOR_TYPE_TEMPERATURE
+ REPORTING_MODE_ON_CHANGE, 3, // SENSOR_TYPE_PROXIMITY
+ REPORTING_MODE_CONTINUOUS, 3, // SENSOR_TYPE_GRAVITY
+ REPORTING_MODE_CONTINUOUS, 3, // SENSOR_TYPE_LINEAR_ACCELERATION
+ REPORTING_MODE_CONTINUOUS, 5, // SENSOR_TYPE_ROTATION_VECTOR
+ REPORTING_MODE_ON_CHANGE, 3, // SENSOR_TYPE_RELATIVE_HUMIDITY
+ REPORTING_MODE_ON_CHANGE, 3, // SENSOR_TYPE_AMBIENT_TEMPERATURE
+ REPORTING_MODE_CONTINUOUS, 6, // SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED
+ REPORTING_MODE_CONTINUOUS, 4, // SENSOR_TYPE_GAME_ROTATION_VECTOR
+ REPORTING_MODE_CONTINUOUS, 6, // SENSOR_TYPE_GYROSCOPE_UNCALIBRATED
+ REPORTING_MODE_ONE_SHOT, 1, // SENSOR_TYPE_SIGNIFICANT_MOTION
+ // added post 4.3
+ REPORTING_MODE_ON_CHANGE, 1, // SENSOR_TYPE_STEP_DETECTOR
+ REPORTING_MODE_ON_CHANGE, 1, // SENSOR_TYPE_STEP_COUNTER
+ REPORTING_MODE_CONTINUOUS, 5 // SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR
+ };
static int getReportingMode(Sensor sensor) {
- // mType starts from offset 1.
- return sSensorReportingModes[sensor.mType - 1];
+ int offset = sensor.mType * 2;
+ if (offset >= sSensorReportingModes.length) {
+ // we don't know about this sensor, so this is probably a
+ // vendor-defined sensor, in that case, we figure out the reporting
+ // mode from the sensor meta-data.
+ int minDelay = sensor.mMinDelay;
+ if (minDelay == 0) {
+ return REPORTING_MODE_ON_CHANGE;
+ } else if (minDelay < 0) {
+ return REPORTING_MODE_ONE_SHOT;
+ } else {
+ return REPORTING_MODE_CONTINUOUS;
+ }
+ }
+ return sSensorReportingModes[offset];
}
static int getMaxLengthValuesArray(Sensor sensor, int sdkLevel) {
- // mType starts from offset 1.
- int len = sMaxLengthValuesArray[sensor.mType - 1];
-
+ int type = sensor.mType;
// RotationVector length has changed to 3 to 5 for API level 18
// Set it to 3 for backward compatibility.
- if (sensor.getType() == Sensor.TYPE_ROTATION_VECTOR &&
+ if (type == Sensor.TYPE_ROTATION_VECTOR &&
sdkLevel <= Build.VERSION_CODES.JELLY_BEAN_MR1) {
- len = 3;
+ return 3;
+ }
+ int offset = type * 2 + 1;
+ if (offset >= sSensorReportingModes.length) {
+ // we don't know about this sensor, so this is probably a
+ // vendor-defined sensor, in that case, we don't know how many value
+ // it has
+ // so we return the maximum and assume the app will know.
+ // FIXME: sensor HAL should advertise how much data is returned per
+ // sensor
+ return 16;
}
- return len;
+ return sSensorReportingModes[offset];
}
/* Some of these fields are set only by the native bindings in