SQLite數據庫適配器

Question

我工作的新聞Android應用程序，如果我上線我得到RSS通量新聞，我有一個RSSItemAdapter

與此代碼：

class RSSItemAdapter extends ArrayAdapter<RSSItem> { 

    private final Context context; 
    final Comment comment = null; 
    private CommentsDataSource datasource; 

    public RSSItemAdapter(Context context, int textViewResourceId, List<RSSItem> items) { 
     super(context, textViewResourceId, items); 
     this.context = context; 
    } 

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     View v = convertView; 
     if (v == null) { 
      LayoutInflater vi = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      v = vi.inflate(R.layout.rssitem, null); 
     } 
     final RSSItem item = getItem(position); 
     TextView tv = (TextView) v.findViewById(R.id.title); 
     // tv.setText("<a href="+'"'+item.getUrl()+'"'+">"+item.getTitle()+"</a>"); 

     // tv.setText(Html.fromHtml("<a href=\"http://www.google.com\">"+item.getTitle()+"</a>")); 
     tv.setText(item.getTitle()); 
     //tv.setMovementMethod(LinkMovementMethod.getInstance()); 

     TextView tv1 = (TextView) v.findViewById(R.id.description); 
     tv1.setText(item.getDescription()); 

     TextView tv2 = (TextView) v.findViewById(R.id.pubdate); 

     Date date = item.getPubDate(); 
     Format formatter = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz"); 
     String s = formatter.format(date); 

     tv2.setText(s); 

     TextView tv3 = (TextView) v.findViewById(R.id.lien); 
     tv3.setText(item.getUrl()); 

     ImageView iv = (ImageView) v.findViewById(R.id.img); 
     try { 
      iv.setImageDrawable(drawable_from_url(item.getImageUrl(), item.getImageTitle())); 

     } catch (IOException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 
     return v; 
    } 

    Drawable drawable_from_url(String url, String src_name) throws java.net.MalformedURLException, java.io.IOException 
    { 
     return Drawable.createFromStream(((java.io.InputStream) 
     new java.net.URL(url).getContent()), src_name); 
    } 

} 

後在主類我把它叫做這樣的：

if(isOnline()) { 
    ListView rssItemList = (ListView) findViewById(R.id.rssListview); 
    FeedSource feedSource = new HttpFeedSource(); 
    RSSItemAdapter adapter = new RSSItemAdapter(this, R.layout.rssitem, feedSource.getFeed()); 
    rssItemList.setAdapter(adapter); 
} 

憑什麼我得到的日期存儲在我的SQLite和與這樣的適配器，打印???

Answer 1

我找到了解決方案：

package news.mobile; 

import android.content.ContentValues; 
import android.content.Context; 
import android.database.Cursor; 
import android.database.sqlite.SQLiteDatabase; 
import android.database.sqlite.SQLiteOpenHelper; 
import android.database.sqlite.SQLiteDatabase.CursorFactory; 


public class SQLiteAdapter { 

public static final String MYDATABASE_NAME = "mobilealgerie.db"; 
public static final String MYDATABASE_TABLE = "mobilealgerie"; 
public static final int MYDATABASE_VERSION = 1; 
public static final String KEY_ID = "_id"; 
public static final String KEY_TITLE = "title"; 
    public static final String KEY_DESCRIPTION = "description"; 
    public static final String KEY_PUBDATE = "pubdate"; 

//create table MY_DATABASE (ID integer primary key, Content text not null); 
private static final String SCRIPT_CREATE_DATABASE = 
    "create table " + MYDATABASE_TABLE + " (" 
    + KEY_ID + " integer primary key autoincrement, " 
    + KEY_TITLE + " text not null ," 
    + KEY_DESCRIPTION + " text not null," 
    + KEY_PUBDATE + " text not null);"; 

private SQLiteHelper sqLiteHelper; 
private SQLiteDatabase sqLiteDatabase; 

private Context context; 

public SQLiteAdapter(Context c){ 
    context = c; 
} 

public SQLiteAdapter openToRead() throws android.database.SQLException { 
    sqLiteHelper = new SQLiteHelper(context, MYDATABASE_NAME, null, MYDATABASE_VERSION); 
    sqLiteDatabase = sqLiteHelper.getReadableDatabase(); 
    return this;  
} 

public SQLiteAdapter openToWrite() throws android.database.SQLException { 
    sqLiteHelper = new SQLiteHelper(context, MYDATABASE_NAME, null, MYDATABASE_VERSION); 
    sqLiteDatabase = sqLiteHelper.getWritableDatabase(); 
    return this;  
} 

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

public long insert(String TITLE,String DESCRIPTION ,String PUBDATE){ 

    ContentValues contentValues = new ContentValues(); 
    contentValues.put(KEY_TITLE, TITLE); 
    contentValues.put(KEY_DESCRIPTION, DESCRIPTION); 
    contentValues.put(KEY_PUBDATE, PUBDATE); 
    return sqLiteDatabase.insert(MYDATABASE_TABLE, null, contentValues); 
} 

public int deleteAll(){ 
    return sqLiteDatabase.delete(MYDATABASE_TABLE, null, null); 
} 

public Cursor queueAll(){ 
    String[] columns = new String[]{KEY_ID, KEY_TITLE, KEY_DESCRIPTION,KEY_PUBDATE }; 
    Cursor cursor = sqLiteDatabase.query(MYDATABASE_TABLE, columns, 
      null, null, null, null, null); 

    return cursor; 
} 

public class SQLiteHelper extends SQLiteOpenHelper { 

    public SQLiteHelper(Context context, String name, 
      CursorFactory factory, int version) { 
     super(context, name, factory, version); 
    } 

    @Override 
    public void onCreate(SQLiteDatabase db) { 
     // TODO Auto-generated method stub 
     db.execSQL(SCRIPT_CREATE_DATABASE); 
    } 

    @Override 
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
     // TODO Auto-generated method stub 

    } 

} 

}