在Android中插入数据库时​​出错

Question

我想在android中的sqllite数据库中插入数据。

我Adapterclass

public class dbAdapter { 
    // Database fields 
    public static final String ID = "id"; 
    public static final String FULLNAME = "fullname"; 
    public static final String ADDRESS = "address"; 
    public static final String EMAIL = "email"; 
    public static final String MOBILE = "mobile"; 
    public static final String GENDER = "gender"; 
    public static final String DOB = "dob"; 
    public static final String CITY = "city"; 
    public static final String USERNAME = "username"; 
    public static final String PASSWORD = "password"; 

    private static final String DATABASE_TABLE = "myfirstanroidapp"; 

    private Context context; 
    private SQLiteDatabase database; 
    private databaseHelper dbHelper; 

    public dbAdapter(OnClickListener onClickListener) { 
     this.context = (Context) onClickListener; 
     open(); 
    } 

    public dbAdapter(Context context) { 
     Log.e("Adapter","dbAdapter context"); 
     this.context = context; 
    } 

    public dbAdapter open() throws SQLException { 

     dbHelper = new databaseHelper(context); 
     Log.e("Adapter","getWritableDatabase"); 
     database = dbHelper.getWritableDatabase(); 
     return this; 
    } 

    public void close() { 
     dbHelper.close(); 
    } 

    // Put String values into a Content object(like AssignData to database field) 
    private ContentValues createContentValues(String fullname, String address, String email,String mobile, String gender, String dob,String city, String username, String password) { 
     ContentValues values = new ContentValues(); 
     values.put(FULLNAME, fullname); 
     values.put(ADDRESS, address); 
     values.put(EMAIL, email); 
     values.put(MOBILE, mobile); 
     values.put(GENDER, gender); 
     values.put(DOB, dob); 
     values.put(CITY, city); 
     values.put(USERNAME, username); 
     values.put(PASSWORD, password); 
     return values; 
    } 

    // Create a new myfirstanroidapp. If the myfirstanroidapp is successfully created return the new 
    // rowId for that note, otherwise return a -1 to indicate failure. 
    public long insert(String fullname, String address, String email,String mobile, String gender, String dob,String city, String username, String password) { 
     ContentValues assigndata = createContentValues(fullname,address,email,mobile,gender,dob,city,username, password) ; 
     return database.insert(DATABASE_TABLE, null, assigndata); 
    } 
} 

我的助手类

public class databaseHelper extends SQLiteOpenHelper 
{ 
    private static final String DATABASE_NAME = "myfirstanroidapp"; 
    private static final int DATABASE_VERSION = 1; 
    // Database creation SQL statement 
    private static final String DATABASE_CREATE = 
      "create table myfirstanroidapp (id integer primary key autoincrement, " + 
      "fullname text not null, address text, " + 
      "mobile text not null, email text not null," + 
      "city text not null, username text not null, " + 
      "password text not null, dob text not null," + 
      "gender text not null);"; 


    public databaseHelper(Context context){  
     super(context, DATABASE_NAME, null, DATABASE_VERSION); 
     Log.e("Database",DATABASE_NAME); 
    } 

    @Override 
    public void onCreate(SQLiteDatabase db) { 
     //Create Database 
     db.execSQL(DATABASE_CREATE); 
    } 

    @Override 
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
     //Drop Database and ReCreate Database 
     db.execSQL("DROP TABLE IF EXISTS myfirstanroidapp"); 
     onCreate(db); 
    } 
} 

现在我从onButtonClick

dbAdapter = new dbAdapter(getApplicationContext()); 
dbAdapter.insert("XYZ", "XYZ", "xyz.gmail.com", "123456789", "male", "dob", "pune", "username", "password"); 
Log.e("Sucess","Register"); 

传递数据，但得到错误，如

Answer 1

变化

public dbAdapter(OnClickListener onClickListener) { 
     this.context = (Context) onClickListener; 
     open(); 
    } 

和dbAdapter = new dbAdapter(this);

到

public dbAdapter(Context context) { 
     this.context = context; 
     open(); 
    } 

和dbAdapter = new dbAdapter(Your_activity.this);