feature/debug/src/main/java/one/nem/kidshift/feature/debug/DebugCommandProcessor.java

@@ -58,9 +58,11 @@ public class DebugCommandProcessor {
     }
 
     private String executeLog(String[] commandArray) {
-        switch (commandArray[1]) {
+        commandArray = shiftArray(commandArray);
+        switch (commandArray[0]) {
             case "get":
-                switch (commandArray[2]) {
+                commandArray = shiftArray(commandArray);
+                switch (commandArray[0]) {
                     case "all":
                         List<LogModel> logs = ksLogger.getHistory();
                         StringBuilder logString = new StringBuilder();
@@ -73,8 +75,9 @@ public class DebugCommandProcessor {
                         return "TODO";
                 }
             case "insert":
-                String[] logArray = Arrays.copyOfRange(commandArray, 3, commandArray.length);
-                switch (commandArray[2]) {
+                commandArray = shiftArray(commandArray);
+                String[] logArray = Arrays.copyOfRange(commandArray, 1, commandArray.length);
+                switch (commandArray[0]) {
                     case "info":
                         ksLogger.info(String.join(" ", logArray));
                         return "Log inserted";

gradle/libs.versions.toml

@@ -1,5 +1,6 @@
 [versions]
 agp = "8.3.2"
+gson = "2.11.0"
 junit = "4.13.2"
 junitVersion = "1.1.5"
 espressoCore = "3.5.1"
@@ -10,6 +11,7 @@ constraintlayout = "2.1.4"
 nav = "2.7.7"
 
 [libraries]
+gson = { module = "com.google.code.gson:gson", version.ref = "gson" }
 junit = { group = "junit", name = "junit", version.ref = "junit" }
 ext-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
 espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }

utils/build.gradle

@@ -37,4 +37,7 @@ dependencies {
     // Hilt (DI)
     implementation libs.com.google.dagger.hilt.android
     annotationProcessor libs.com.google.dagger.hilt.compiler
+
+    // Gson
+    implementation libs.gson
 }

utils/src/main/java/one/nem/kidshift/utils/SharedPrefUtils.java

@@ -0,0 +1,18 @@
+package one.nem.kidshift.utils;
+
+import android.content.SharedPreferences;
+
+import java.util.List;
+
+public interface SharedPrefUtils {
+
+    // Single
+    <T> String saveObject(String key, T object);
+    <T> String saveObject(T object); // auto generate key
+    <T> T getObject(String key, Class<T> clazz);
+    <T> List<T> getObjects(Class<T> clazz);
+
+    // Common
+    void reset();
+    void remove(String key);
+}

utils/src/main/java/one/nem/kidshift/utils/factory/SharedPrefUtilsFactory.java

@@ -0,0 +1,9 @@
+package one.nem.kidshift.utils.factory;
+
+import dagger.assisted.AssistedFactory;
+import one.nem.kidshift.utils.impl.SharedPrefUtilsImpl;
+
+@AssistedFactory
+public interface SharedPrefUtilsFactory {
+    SharedPrefUtilsImpl create(String name);
+}

utils/src/main/java/one/nem/kidshift/utils/impl/KSLoggerImpl.java

@@ -10,18 +10,21 @@ import java.util.List;
 import javax.inject.Inject;
 
 import one.nem.kidshift.utils.KSLogger;
+import one.nem.kidshift.utils.SharedPrefUtils;
 import one.nem.kidshift.utils.enums.LogLevelEnum;
+import one.nem.kidshift.utils.factory.SharedPrefUtilsFactory;
 import one.nem.kidshift.utils.models.LogModel;
 
 public class KSLoggerImpl implements KSLogger {
 
-    private ArrayList<LogModel> logs = new ArrayList<LogModel>();
-
     private ArrayList<String> tags = new ArrayList<String>();
 
+    private SharedPrefUtils sharedPrefUtils;
+
     @Inject
-    public KSLoggerImpl() {
+    public KSLoggerImpl(SharedPrefUtilsFactory sharedPrefUtilsFactory) {
         tags.add("UNTAGGED");
+        this.sharedPrefUtils = sharedPrefUtilsFactory.create("KSLogger");
     }
 
     public KSLoggerImpl(String tag) {
@@ -54,7 +57,7 @@ public class KSLoggerImpl implements KSLogger {
 
     @Override
     public List<LogModel> getHistory() {
-        return logs;
+        return sharedPrefUtils.getObjects(LogModel.class);
     }
 
     @Override
@@ -93,7 +96,7 @@ public class KSLoggerImpl implements KSLogger {
     }
 
     private void addLog(LogModel log) {
-        logs.add(log);
+        sharedPrefUtils.saveObject(log);
     }
 
     private void outputLog(LogModel log) {

utils/src/main/java/one/nem/kidshift/utils/impl/SharedPrefUtilsImpl.java

@@ -0,0 +1,77 @@
+package one.nem.kidshift.utils.impl;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+
+import com.google.gson.Gson;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import dagger.assisted.Assisted;
+import dagger.assisted.AssistedInject;
+import dagger.hilt.android.qualifiers.ApplicationContext;
+import one.nem.kidshift.utils.SharedPrefUtils;
+
+public class SharedPrefUtilsImpl implements SharedPrefUtils {
+
+    private final Context applicationContext;
+    private final String name;
+    private final Gson gson;
+
+    private SharedPreferences sharedPreferences;
+    private SharedPreferences.Editor editor;
+
+    @AssistedInject
+    public SharedPrefUtilsImpl(@ApplicationContext Context applicationContext, @Assisted String name) {
+        this.applicationContext = applicationContext;
+        this.name = name;
+        this.gson = new Gson();
+
+        // Get the shared preferences
+        sharedPreferences = applicationContext.getSharedPreferences(name, Context.MODE_PRIVATE);
+        editor = sharedPreferences.edit();
+    }
+
+
+    @Override
+    public <T> String saveObject(String key, T object) {
+        String json = gson.toJson(object);
+        editor.putString(key, json).apply();
+        return key;
+    }
+
+    @Override
+    public <T> String saveObject(T object) {
+        String key = String.valueOf(sharedPreferences.getAll().size());
+        return saveObject(key, object);
+    }
+
+    @Override
+    public <T> T getObject(String key, Class<T> clazz) {
+        String json = sharedPreferences.getString(key, null);
+        return gson.fromJson(json, clazz);
+    }
+
+    @Override
+    public <T> List<T> getObjects(Class<T> clazz) {
+        // SharedPreferenceの中身を全て取得
+        List<T> list = new ArrayList<>();
+        for (String key : sharedPreferences.getAll().keySet()) {
+            String json = sharedPreferences.getString(key, null);
+            T object = gson.fromJson(json, clazz);
+            list.add(object);
+        }
+        return list;
+    }
+
+    @Override
+    public void reset() {
+        editor.clear().apply();
+    }
+
+    @Override
+    public void remove(String key) {
+        editor.remove(key).apply();
+    }
+}