java - 将值插入 sqlite - java

Question

我已经创建了一个数据库并使用下面的代码将值插入到数据库中。代码工作正常。

问题是因为代码在 onCreate 方法中。每次我调用该 Activity 时，这都会一次又一次地插入数据。

我希望它仅在我第一次调用 Activity 时插入值。

有什么办法可以做到吗..谢谢。

protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.display_db_result);

    Dbhandler dbhand = new Dbhandler(this); 

    kovil insertData1 = new kovil("Murugan Kovil", "Murugan", "9.6680077",  
                                  "80.0147083", "image_name", "year_build", 
                                  "address", "city", "email", "website",
                                  "telephone1", "telephone2",  "Description");

    kovil insertData2 = new kovil("Murugan Kovil", "Murugan", "9.6661814",  
                                  "80.014883", "image_name2", "year_build2", 
                                  "address2", "city2", "email2", "website2", 
                                  "telephone12", "telephone22",  "Description2");

    kovil insertData3 = new kovil("Murugan Kovil", "Murugan", "9.6621890",  
                                  "80.0131851", "image_name3", "year_build3", 
                                  "address3", "city2", "email2", "website2", 
                                  "telephone12", "telephone22",  "Description2");

    ArrayList<kovil> arrayList = new ArrayList<kovil>();

    arrayList.add(insertData1); 
    arrayList.add(insertData2); 
    arrayList.add(insertData3);           

    for (int i=0; i<arrayList.size(); i++) {
        dbhand.Add_Temple(arrayList.get(i));
    };
}  

Answer 1

数据库设置(例如使用默认数据填充表)最好放在 SQLite open helper onCreate() 中。仅在首次创建数据库时调用一次。