在android中保存数据最合适的方法是什么？

Question

我正在制作一个应用程序，它将向用户询问他的教员、系和年级，然后显示主题列表。

问题是，保存主题的最佳方法是什么，这样可以很容易地检索它们并将它们显示给用户。

我尝试过XML，但它不起作用，现在我尝试了JSON，但不确定它是否是存储此类数据的最佳方式？

答案：

正如所有的人所说，最好的方法是在SQLite dataBase中保存数据。

以下是我的JSON快照

{
  "faculty_engineering": {
    "name": "Engineering",
    "department_prep": {
      "name": "prep",
      "grade_1": {
        "term_1": {
          "subjects": [
            "Math",
            "physics",
            "English",
            "Realisation",
            "subject"
          ]
        },
        "term_2": {
          "subjects": [
            "chemistry",
            "Math",
            "fekh",
            "Geometry",
            "Entag",
            "Mechanics"
          ]
        }
      }
    },
    "department_systems_and_computer_engineering": {
      "name": "Systems and computer engineering",
      "grade_1": {
        "term_1": {
          "subjects": [
            "Programming",
            "Electronics",
            "Math",
            "Circuits",
            "Measure",
            "English"
          ]
        },
        "term_2": {
          "subjects": [
            "Algorithms",
            "Electronics",
            "Math",
            "Fields",
            "Religious subject"
          ]
        }
      },
      "grade_2": {
        "term_1": {
          "subjects": [
            "Math",
            "Integrated circuits",
            "Systems and signals",
            "machines  VHDL",
            "Numerical Analysis",
            "Object-oriented programming",
            "Tests",
            "Realisation subject"
          ]
        },
        "term_2": {
          "subjects": [
            "Math",
            "Logical circuits",
            "Automatic Control",
            "Electric machines",
            "Religious subjects",
            "Realisation subject"
          ]
        }
      },
      "grade_3": {
        "term_1": {
          "subjects": [
            "Math",
            "Communications systems",
            "Electronics",
            "Religious subjects",
            "Operating system",
            "Digital Control",
            "Tests ",
            "Transition systems and mechanisms ",
            "Power electric systems ",
            "Realisation subject"
          ]
        },
        "term_2": {
          "subjects": [
            "Databases",
            "Microprocessors",
            "Administration and engineering projects",
            "Sensors of adapters",
            "Religious subjects",
            "Realisation subject"
          ]
        }
      },
      "grade_4": {
        "term_1": {
          "subjects": [
            "Special computer subject",
            "Tests",
            "Engineering programming",
            "Intelligent Systems",
            "Computer architecture",
            "Interpreters",
            "Advanced software",
            "Realisation subject"
          ]
        },
        "term_2": {
          "subjects": [
            "Algorithms",
            "Advanced software",
            "Computer architecture",
            "Interpreters",
            "Realisation subject"
          ]
        }
      }
    },
    "department_": {
      "name": "",
      "grade_1": {
        "term_1": {
          "subjects": [
          ]
        },
        "term_2": {
          "subjects": [
          ]
        }
      },
      "grade_2": {
        "term_1": {
          "subjects": [
          ]
        },
        "term_2": {
          "subjects": [
          ]
        }
      },
      "grade_3": {
        "term_1": {
          "subjects": [
          ]
        },
        "term_2": {
          "subjects": [
          ]
        }
      },
      "grade_4": {
        "term_1": {
          "subjects": [
          ]
        },
        "term_2": {
          "subjects": [
          ]
        }
      }
    }
  }
}

Answer 1

如果要查询的数据不在远程服务器上，则可以使用Android数据库来保存和获取数据。

Answer 2

也许您应该使用SQLite数据库：https://developer.android.com/reference/android/database/sqlite/SQLiteDatabase.html

JSON和XML更有可能被用来传输数据，例如使用网络。

Answer 3

您可以使用https://realm.io/，使其在安卓和iOS之间兼容。它更简单，更快。

希望能帮上忙。