Mi Band 3: Support setting language to German, Italian, French, Polish, Japanese, Korean

NOTE:
- Needs latest firmware
- Setting to Japanese or Korean leads to empty menus on the device. When
  reconnecting you, will get a sceen which telling you to update. I highly
  suspect it requires flashing Mili_wuhan.ft.kj (kj=korean,japanese)

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/HuamiService.java

@@ -148,6 +148,7 @@ public class HuamiService {
     public static final byte[] DISPLAY_YYY = new byte[] {ENDPOINT_DISPLAY, 0x10, 0x0, 0x1, 0x1 };
     public static final byte[] COMMAND_DISTANCE_UNIT_METRIC = new byte[] { ENDPOINT_DISPLAY, 0x03, 0x00, 0x00 };
     public static final byte[] COMMAND_DISTANCE_UNIT_IMPERIAL = new byte[] { ENDPOINT_DISPLAY, 0x03, 0x00, 0x01 };
+    public static final byte[] COMMAND_SET_LANGUAGE_NEW_TEMPLATE = new byte[]{ENDPOINT_DISPLAY, 0x17, 0x00, 0, 0, 0, 0, 0};
 
     // The third byte controls the threshold, in minutes
     // The last 8 bytes represent 2 separate time intervals for the inactivity warnings

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/amazfitbip/AmazfitBipService.java

@@ -35,8 +35,6 @@ public class AmazfitBipService {
     public static final byte[] COMMAND_SET_LANGUAGE_TRADITIONAL_CHINESE = new byte[]{ENDPOINT_DISPLAY, 0x13, 0x00, 0x01};
     public static final byte[] COMMAND_SET_LANGUAGE_ENGLISH = new byte[]{ENDPOINT_DISPLAY, 0x13, 0x00, 0x02};
     public static final byte[] COMMAND_SET_LANGUAGE_SPANISH = new byte[]{ENDPOINT_DISPLAY, 0x13, 0x00, 0x03};
-    public static final byte[] COMMAND_SET_LANGUAGE_NEW_TEMPLATE = new byte[]{ENDPOINT_DISPLAY, 0x17, 0x00, 0, 0, 0, 0, 0};
-
 
     public static final byte COMMAND_ACTIVITY_DATA_TYPE_SPORTS_SUMMARIES = 0x05;
     public static final byte COMMAND_ACTIVITY_DATA_TYPE_SPORTS_DETAILS = 0x06;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huami/amazfitbip/AmazfitBipSupport.java

@@ -411,7 +411,7 @@ public class AmazfitBipSupport extends HuamiSupport {
         return this;
     }
 
-    private AmazfitBipSupport setLanguage(TransactionBuilder builder) {
+    protected AmazfitBipSupport setLanguage(TransactionBuilder builder) {
 
         String language = Locale.getDefault().getLanguage();
         String country = Locale.getDefault().getCountry();
@@ -468,14 +468,13 @@ public class AmazfitBipSupport extends HuamiSupport {
                         break;
                 }
         }
-        command_new = AmazfitBipService.COMMAND_SET_LANGUAGE_NEW_TEMPLATE;
+        command_new = HuamiService.COMMAND_SET_LANGUAGE_NEW_TEMPLATE.clone();
         System.arraycopy(localeString.getBytes(), 0, command_new, 3, localeString.getBytes().length);
 
         builder.add(new ConditionalWriteAction(getCharacteristic(HuamiService.UUID_CHARACTERISTIC_3_CONFIGURATION)) {
             @Override
             protected byte[] checkCondition() {
-                if (gbDevice.getType() == DeviceType.MIBAND3 ||
-                        (gbDevice.getType() == DeviceType.AMAZFITBIP && new Version(gbDevice.getFirmwareVersion()).compareTo(new Version("0.1.0.77")) >= 0) ||
+                if ((gbDevice.getType() == DeviceType.AMAZFITBIP && new Version(gbDevice.getFirmwareVersion()).compareTo(new Version("0.1.0.77")) >= 0) ||
                         (gbDevice.getType() == DeviceType.AMAZFITCOR && new Version(gbDevice.getFirmwareVersion()).compareTo(new Version("1.0.7.23")) >= 0)) {
                     return command_new;
                 } else {

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huami/miband3/MiBand3Support.java

@@ -24,6 +24,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
+import java.util.Locale;
 import java.util.Set;
 
 import nodomain.freeyourgadget.gadgetbridge.GBApplication;
@@ -103,6 +104,29 @@ public class MiBand3Support extends AmazfitBipSupport {
         }
     }
 
+    @Override
+    protected MiBand3Support setLanguage(TransactionBuilder builder) {
+        String localeString = GBApplication.getPrefs().getString("miband3_language", "auto");
+
+        if (localeString.equals("auto")) {
+            String language = Locale.getDefault().getLanguage();
+            String country = Locale.getDefault().getCountry();
+
+            if (country == null) {
+                // sometimes country is null, no idea why, guess it.
+                country = language;
+            }
+            localeString = language + "_" + country.toUpperCase();
+        }
+        LOG.info("Setting device to locale: " + localeString);
+        byte[] command_new = HuamiService.COMMAND_SET_LANGUAGE_NEW_TEMPLATE.clone();
+        System.arraycopy(localeString.getBytes(), 0, command_new, 3, localeString.getBytes().length);
+
+        builder.write(getCharacteristic(HuamiService.UUID_CHARACTERISTIC_3_CONFIGURATION), command_new);
+
+        return this;
+    }
+
     private MiBand3Support setBandScreenUnlock(TransactionBuilder builder) {
         boolean enable = MiBand3Coordinator.getBandScreenUnlock();
         LOG.info("Setting band screen unlock to " + enable);

app/src/main/res/values/arrays.xml

@@ -340,6 +340,36 @@
         <item>4</item>
     </string-array>
 
+    <string-array name="pref_miband3_language">
+        <item name="auto">@string/automatic</item>
+        <item name="zh_CH">@string/simplified_chinese</item>
+        <item name="zh_TW">@string/traditional_chinese</item>
+        <item name="en_US">@string/english</item>
+        <item name="es_ES">@string/spanish</item>
+        <item name="ru_RU">@string/russian</item>
+        <item name="de_DE">@string/german</item>
+        <item name="it_IT">@string/italian</item>
+        <item name="fr_FR">@string/french</item>
+        <item name="pl_PL">@string/polish</item>
+        <item name="ja_JP">@string/japanese</item>
+        <item name="ko_KO">@string/korean</item>
+    </string-array>
+
+    <string-array name="pref_miband3_language_values">
+        <item>auto</item>
+        <item>zh_CH</item>
+        <item>zh_TW</item>
+        <item>en_US</item>
+        <item>es_ES</item>
+        <item>ru_RU</item>
+        <item>de_DE</item>
+        <item>it_IT</item>
+        <item>fr_FR</item>
+        <item>pl_PL</item>
+        <item>ja_JP</item>
+        <item>ko_KO</item>
+    </string-array>
+
     <string-array name="prefs_heartrate_measurement_interval">
         <item name="0">@string/off</item>
         <item name="60">@string/interval_one_minute</item>

app/src/main/res/values/strings.xml

@@ -434,6 +434,12 @@
     <string name="english">English</string>
     <string name="spanish">Spanish</string>
     <string name="russian">Russian</string>
+    <string name="german">German</string>
+    <string name="italian">Italian</string>
+    <string name="french">French</string>
+    <string name="polish">Polish</string>
+    <string name="korean">Korean</string>
+    <string name="japanese">Japanese</string>
 
     <string name="FetchActivityOperation_about_to_transfer_since">About to transfer data since %1$s</string>
 

app/src/main/res/xml/preferences.xml

@@ -212,6 +212,13 @@
         <PreferenceScreen
             android:icon="@drawable/ic_device_miband2"
             android:title="@string/preferences_miband3_settings">
+            <ListPreference
+                android:defaultValue="auto"
+                android:entries="@array/pref_miband3_language"
+                android:entryValues="@array/pref_miband3_language_values"
+                android:key="miband3_language"
+                android:summary="%s"
+                android:title="@string/pref_title_language" />
             <CheckBoxPreference
                 android:defaultValue="false"
                 android:key="mi3_band_screen_unlock"