调整架构 添加base 基础工具模块

base/src/main/ets/utils/BaseLocalStorage.ets

@@ -0,0 +1,65 @@
+
+import { Context } from '@kit.AbilityKit';
+import dataPreferences from '@ohos.data.preferences';
+import { Log } from './Log';
+
+export class BaseLocalStorageKey {
+  static readonly KEY_SERVER_CONFIG = "key_config";
+}
+
+export class BaseLocalStorage {
+
+  private static instance: BaseLocalStorage;
+  private static lock: boolean = false;
+  private static readonly XY_DP_Name = "LocalData";
+  static getInstance(): BaseLocalStorage {
+    if (!BaseLocalStorage.instance) {
+      if (!BaseLocalStorage.lock) {
+        BaseLocalStorage.lock = true;
+        BaseLocalStorage.instance = new BaseLocalStorage();
+        BaseLocalStorage.lock = false;
+      }
+    }
+    return BaseLocalStorage.instance;
+  }
+
+  private context: Context | null = null;
+  private preferences: dataPreferences.Preferences | null = null;
+  private constructor() {
+  }
+
+  public init(context: Context): void {
+    if (!this.context) {
+      this.context = context.getApplicationContext();
+      let options: dataPreferences.Options = { name: BaseLocalStorage.XY_DP_Name };
+      this.preferences = dataPreferences.getPreferencesSync(this.context, options);
+    } else {
+      Log.i("LocalStorage is already init.")
+    }
+  }
+
+  public putData(key: string, value: dataPreferences.ValueType) {
+    Log.i(`put sp data, key:${key}, value:${value}`)
+    this.preferences?.putSync(key, value);
+    this.preferences?.flush();
+  }
+
+  public clearData(key: string) {
+    this.preferences?.delete(key);
+    this.preferences?.flush();
+  }
+
+  public getData(key: string, defaultValue: dataPreferences.ValueType): dataPreferences.ValueType | undefined {
+    let value = this.preferences?.getSync(key, defaultValue);
+    Log.i(`get sp data, key:${key}, value:${value}`)
+    return value;
+  }
+
+  public getObject<T>(key: string): T {
+    let value = this.getData(key, "{}") as string;
+    if (value.toString().length > 0) {
+      return JSON.parse(value) as T;
+    }
+    return "{}" as T;
+  }
+}