mirror of
https://codeberg.org/Freeyourgadget/Gadgetbridge
synced 2024-09-11 00:36:32 +02:00
Created a new device-independent class ActivityUser to hold the data Moved the constants from the miband constant class to the ActivityUser class Removed the miband-specific in favor of common-prefixed preferences (with upgrade support for legacy values) Changed the way the gender is stored to an integer value Removed the hardcoded default values for user data in favor of static fields of the ActivityUser class
103 lines
3.6 KiB
Java
103 lines
3.6 KiB
Java
package nodomain.freeyourgadget.gadgetbridge.devices.miband;
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import nodomain.freeyourgadget.gadgetbridge.model.ActivityUser;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.miband.DeviceInfo;
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import nodomain.freeyourgadget.gadgetbridge.util.CheckSums;
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import java.util.Arrays;
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public class UserInfo {
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private final String btAddress;
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private final String alias;
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private final int gender;
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private final int age;
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private final int height;
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private final int weight;
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private final int type;
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private byte[] data = new byte[20];
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/**
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* Creates a default user info.
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*
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* @param btAddress the address of the MI Band to connect to.
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*/
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public static UserInfo getDefault(String btAddress) {
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return new UserInfo(btAddress, "1550050550", ActivityUser.defaultUserGender, ActivityUser.defaultUserAge, ActivityUser.defaultUserHeightCm, ActivityUser.defaultUserWeightKg, 0);
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}
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/**
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* Creates a user info with the given data
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*
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* @param address the address of the MI Band to connect to.
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* @throws IllegalArgumentException when the given values are not valid
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*/
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public static UserInfo create(String address, String alias, int gender, int age, int height, int weight, int type) throws IllegalArgumentException {
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if (address == null || address.length() == 0 || alias == null || alias.length() == 0 || gender < 0 || age <= 0 || weight <= 0 || type < 0) {
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throw new IllegalArgumentException("Invalid parameters");
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}
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try {
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return new UserInfo(address, alias, gender, age, height, weight, type);
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} catch (Exception ex) {
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throw new IllegalArgumentException("Illegal user info data", ex);
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}
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}
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/**
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* Creates a user info with the given data
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*
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* @param address the address of the MI Band to connect to.
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*/
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private UserInfo(String address, String alias, int gender, int age, int height, int weight, int type) {
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this.btAddress = address;
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this.alias = alias;
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this.gender = gender;
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this.age = age;
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this.height = height;
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this.weight = weight;
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this.type = type;
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}
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private int calculateUidFrom(String alias) {
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int uid;
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try {
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uid = Integer.parseInt(alias);
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} catch (NumberFormatException ex) {
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uid = alias.hashCode(); // simple as that
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}
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return uid;
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}
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public byte[] getData(DeviceInfo mDeviceInfo) {
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byte[] sequence = new byte[20];
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int uid = calculateUidFrom(alias);
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sequence[0] = (byte) uid;
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sequence[1] = (byte) (uid >>> 8);
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sequence[2] = (byte) (uid >>> 16);
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sequence[3] = (byte) (uid >>> 24);
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sequence[4] = (byte) (gender & 0xff);
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sequence[5] = (byte) (age & 0xff);
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sequence[6] = (byte) (height & 0xff);
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sequence[7] = (byte) (weight & 0xff);
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sequence[8] = (byte) (type & 0xff);
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int aliasFrom = 9;
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if (mDeviceInfo.isMili1A() || mDeviceInfo.isMilli1S()) {
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sequence[9] = (byte) (mDeviceInfo.feature & 255);
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sequence[10] = (byte) (mDeviceInfo.appearance & 255);
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aliasFrom = 11;
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}
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byte[] aliasBytes = alias.substring(0, Math.min(alias.length(), 19-aliasFrom)).getBytes();
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System.arraycopy(aliasBytes, 0, sequence, aliasFrom, aliasBytes.length);
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byte[] crcSequence = Arrays.copyOf(sequence, 19);
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sequence[19] = (byte) ((CheckSums.getCRC8(crcSequence) ^ Integer.parseInt(this.btAddress.substring(this.btAddress.length() - 2), 16)) & 0xff);
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return sequence;
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}
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}
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