myHelper = new MyHelper(MyApp.getContext());
database = myHelper.getReadableDatabase();

				//給資料庫新增資料
                ContentValues values = new ContentValues();
                values.put("content",json);
                database.insert("news",null,values);
                



//資料庫操作
 public void sqlexe(){
    Cursor cursor = database.query("test", null, null, null, null, null, null);
    boolean b = cursor.moveToLast();
    if (b){
        String json = cursor.getString(cursor.getColumnIndex("content"));
        Gson gson=new Gson();
        NewsBean newsBean = gson.fromJson(json, NewsBean.class);
        NewsAdapter newsAdapter = new NewsAdapter(MyApp.getContext(), 				               	newsBean.getData());
        f11_list_view.setAdapter(newsAdapter);
    }
}