Android SensorManager Accuracy Value

Android SensorManager Accuracy Value


public void onAccuracyChanged(Sensor sensor, int accuracy) {
     }


int accuracy


int SENSOR_STATUS_ACCURACY_HIGH
This sensor is reporting data with maximum accuracy

Constant Value: 3 (0x00000003)


int SENSOR_STATUS_ACCURACY_LOW
This sensor is reporting data with low accuracy, calibration with the environment is needed

Constant Value: 1 (0x00000001)


int SENSOR_STATUS_ACCURACY_MEDIUM
This sensor is reporting data with an average level of accuracy, calibration with the environment may improve the readings

Constant Value: 2 (0x00000002)

int SENSOR_STATUS_NO_CONTACT
The values returned by this sensor cannot be trusted because the sensor had no contact with what it was measuring (for example, the heart rate monitor is not in contact with the user).

Constant Value: -1 (0xffffffff)


int SENSOR_STATUS_UNRELIABLE
The values returned by this sensor cannot be trusted, calibration is needed or the environment doesn't allow readings

Constant Value: 0 (0x00000000)

Android view setVisibility():

Android view setVisibility():

有三個參數：Parameters: visibility One of VISIBLE , INVISIBLE , GONE，
對應的常量值：0、4、8

VISIBLE:0 意思是可見的
INVISIBILITY:4 意思是不可見的，但還佔著原來的空間
GONE:8 意思是不可見的，不佔用原來的佈局空間

View Code
 LinearLayout num_Layout = (LinearLayout) findViewById(R.id.num_layout);
  if (numberOfRecord > 0){
              TextView num = (TextView) findViewById(R.id.num);
              num.setText(numberOfRecord.toString() );
              num_Layout.setVisibility(0);
         }
else {
              num_Layout.setVisibility(8);
         }

Android Studio You can also reset/revoke a specific permissions using

Android Studio

You can also reset/revoke a specific permissions using

adb shell pm grant com.your.flashlight android.permission.CAMERA
adb shell pm revoke com.your.package android.permission.CAMERA

adb shell pm grant android.permission.CAMERA
adb shell pm reset-permissions

you should also add C:/android-sdk/platform-tools to you environment path