SQLite 및 ListView에 대한 Android 쿼리 표시

public MyOpenHelper (Context context) {    
      super(context, "moveList", null, 1);
}

@Override
public void onCreate(SQLiteDatabase db) {
    String sql = "CREATE TABLE [userInfo]([name] VARCHAR(20),[address] VARCHAR(20),[phone] VARCHAR(20))";
    db.execSQL(sql);
}

public MyDao(Context context) {
myOpenHelper = new MyOpenHelper(context);

 ```

public void add(InfoBean bean){
//  sql    sqliteDatabase  
//  getReadableDatabase  ,          
SQLiteDatabase db = myOpenHelper.getReadableDatabase();
//sql:sql  ，  bindArgs：sql        
db.execSQL("insert into info(name,phone) values(?,?);", new Object[]{bean.name,bean.phone});
//       
db.close();

 ```
 -         SqliteDataBase    insert(), delete(), update(), query()          。          ，       ，      。
 ```java
 public boolean add(InfoBean bean){
 SQLiteDatabase db = myOpenHelper.getReadableDatabase();
 ContentValues values = new ContentValues();//  map     ，     
 values.put("name", bean.name);
 values.put("phone", bean.phone);
 
 //table:    , nullColumnHack：    ，        , values:       ,    ：         Id ，-1      
 long result = db.insert("info", null, values);//      sql  

 //       
 db.close();
 if(result != -1){//-1      
     return true;
 }else{
     return false;
 }

 ```
 -                 ，         。       ：
 ```java
 public void query(String name){
 //  getReadableDatabase  ,          
 SQLiteDatabase db = mySqliteOpenHelper.getReadableDatabase();
 //sql:sql  ，  selectionArgs:         ,    cursor  
 Cursor cursor = db.rawQuery("select _id, name,phone from info where name = ?", new String []{name});
 //  Cursor    
 if(cursor != null && cursor.getCount() >0){//  cursor       
     
     //       ，        
     while(cursor.moveToNext()){//  ，          
         //    
         int id = cursor.getInt(0);
         String name_str = cursor.getString(1);
         String phone = cursor.getString(2);
         System.out.println("_id:"+id+";name:"+name_str+";phone:"+phone);
     }
     cursor.close();//     
 }
 //       
 db.close();

 ```

    public void transtation(View v){
    //1.          
    BankOpenHelper bankOpenHelper = new BankOpenHelper(this);
    //2.     ，      ，  SqliteDatabase      （sql  ）
    SQLiteDatabase db = bankOpenHelper.getReadableDatabase();
    //3.  ,      200，   200
    db.beginTransaction();//         
    try {
        db.execSQL("update account set money= money-200 where name=?",new String[]{"  "});
        int i = 100/0;//      
        db.execSQL("update account set money= money+200 where name=?",new String[]{"  "});

        db.setTransactionSuccessful();//      sql        
    } finally {
        db.endTransaction();//           ，     ，         sql   
    }
}

public View getView(int position, View convertView, ViewGroup parent) {
    View view = null;
    
    //ListView    
    if(convertView != null)
        view = convertView;
    else {
        view = View.inflate(context, R.layout.view_item,null);
    }
    
    //  view             
    UserBean userBean = userList.get(position);
    TextView name_item = (TextView) view.findViewById(R.id.item_name);
    TextView phone_item = (TextView) view.findViewById(R.id.item_phone);
    name_item.setText(userBean.name);
    phone_item.setText(userBean.phone);
    //  view
    return view;
}

MyAdapter adapter = new MyAdapter(context,beanList);
listView.setAdapter(adapter)