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Code Issues Releases Wiki Activity

create local unique identifier for every mi scale user

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This commit is contained in:
OliE
2017-06-04 09:38:27 +02:00
parent 354a76a978
commit 6c6737f424
1 changed files with 28 additions and 2 deletions
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30
android_app/app/src/main/java/com/health/openscale/core/bluetooth/BluetoothMiScale.java
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@@ -24,7 +24,9 @@ import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothGattDescriptor;
import android.bluetooth.BluetoothProfile;
import android.content.Context;
import android.content.SharedPreferences;
import android.os.Handler;
import android.preference.PreferenceManager;
import android.util.Log;
import com.health.openscale.core.datatypes.ScaleData;
@@ -34,6 +36,7 @@ import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.Random;
import java.util.UUID;
public class BluetoothMiScale extends BluetoothCommunication {
@@ -190,6 +193,25 @@ public class BluetoothMiScale extends BluetoothCommunication {
return (value & (1 << bit)) != 0;
}
private int getUniqueNumber() {
int uniqueNumber;
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
uniqueNumber = prefs.getInt("uniqueNumber", 0x00);
if (uniqueNumber == 0x00) {
Random r = new Random();
uniqueNumber = r.nextInt(65535 - 100 + 1) + 100;
prefs.edit().putInt("uniqueNumber", uniqueNumber).commit();
}
int userId = prefs.getInt("selectedUserId", -1);
return uniqueNumber + userId;
}
private void printByteInHex(byte[] data) {
if (data == null) {
Log.e("BluetoothMiScale", "Data is null");
@@ -269,7 +291,9 @@ public class BluetoothMiScale extends BluetoothCommunication {
characteristic = gatt.getService(WEIGHT_MEASUREMENT_SERVICE)
.getCharacteristic(WEIGHT_MEASUREMENT_HISTORY_CHARACTERISTIC);
characteristic.setValue(new byte[]{(byte)0x01, (byte)0xFF, (byte)0xFF, (byte)0xFF, (byte)0xFF});
int uniqueNumber = getUniqueNumber();
characteristic.setValue(new byte[]{(byte)0x01, (byte)0xFF, (byte)0xFF, (byte) ((uniqueNumber & 0xFF00) >> 8), (byte) ((uniqueNumber & 0xFF) >> 0)});
gatt.writeCharacteristic(characteristic);
break;
case 4:
@@ -330,7 +354,9 @@ public class BluetoothMiScale extends BluetoothCommunication {
characteristic = gatt.getService(WEIGHT_MEASUREMENT_SERVICE)
.getCharacteristic(WEIGHT_MEASUREMENT_HISTORY_CHARACTERISTIC);
characteristic.setValue(new byte[]{(byte)0x04, (byte)0xFF, (byte)0xFF, (byte)0xFF, (byte)0xFF});
int uniqueNumber = getUniqueNumber();
characteristic.setValue(new byte[]{(byte)0x04, (byte)0xFF, (byte)0xFF, (byte) ((uniqueNumber & 0xFF00) >> 8), (byte) ((uniqueNumber & 0xFF) >> 0)});
gatt.writeCharacteristic(characteristic);
break;
case 2: