【正文】 alName String name throws SAXException try String node tagspop if tagssize 0 return boolean isNewsNode tagspeek equals item String value buffertoString catch Exception e 第四步接著執(zhí)行 characters 方法 第五步循環(huán)直接掃描到文件結(jié)束 獲取 RSS 源是從服務(wù)器端獲取的數(shù)據(jù)然后將這些數(shù)據(jù)保存到本地再顯示出來的在進(jìn)入到內(nèi)容中心后系統(tǒng)會(huì)查詢出所有服務(wù)器端的地址源數(shù)據(jù)將他們?nèi)勘４娴綌?shù)據(jù)庫 reads 表當(dāng)中而用戶根據(jù)賬號(hào)登陸后系統(tǒng)則會(huì)從服務(wù)器端獲取所有用戶自己的訂閱頻道將他們都放入 user表當(dāng)中然后首界面 MainActivity再調(diào)用這些數(shù)據(jù) public void getUserReads c contextgetContentResolver query ReaderDataUserColumnsCONTENT_URInullnullnull_id try ArrayList list new ArrayList JSONObject getAlbums WebUtilsgetResult ConnectUrlGETUSERREADS list 建立與服務(wù)器端的連接從服務(wù)器端獲取 Json 數(shù)據(jù) if getAlbums null if cgetCount 0 Message m new Message mwhat 1 handlersendMessage m else JSONArray jsonArray JSONArray getAlbumsget ReadList 對(duì) Json 數(shù)據(jù)進(jìn)行分析獲取所有用戶已經(jīng)訂閱的源 contextgetContentResolver delete ReaderDataUserColumnsCONTENT_URI null null contextgetContentResolver delete ReaderDataReadsColumnsCONTENT_URI null null for int i 0 i jsonArraylength i JSONObject obj JSONObject jsonArrayget i ContentValues values new ContentValues valuesput ReaderDataUserColumnsUSERID jack valuesput ReaderDataUserColumnsREADID objgetString Id valuesput ReaderDataUserColumnsSEQNUM i contextgetContentResolver insert ReaderDataUserColumnsCONTENT_URI values if contextgetContentResolver query ReaderDataReadsColumnsCONTENT_URI null ReaderDataReadsColumnsUNIQUEID new String[] objgetString Id null getCount 0 ContentValues values2 new ContentValues values2put ReaderDataReadsColumnsUNIQUEID objgetString Id values2put ReaderDataReadsColumnsNAME objgetString Name byte[] data null try data FetcherServicegetBytes new URL ConnectUrlIMAGEobjgetString ImageUrl openStream catch MalformedURLException e eprintStackTrace catch IOException e eprintStackTrace values2put ReaderDataReadsColumnsIMAGE data values2put ReaderDataReadsColumnsREADCATEGORYID objgetInt ReadCategoryId values2put ReaderDataReadsColumnsRSSSOURCE objgetString RssSource values2put ReaderDataReadsColumnsDESCRIPTION objgetString Description values2put ReaderDataReadsColumnsSUBSCRIPTIONCOUNT objgetInt SubscriptionCount contextgetContentResolver insert ReaderDataReadsColumnsCONTENT_URI values2 ReaderDataseqNum jsonArraylength catch JSONException e cclose eprintStackTrace cclose 新聞列表的呈現(xiàn) RSSReader 新聞列表呈現(xiàn)啟動(dòng) Activity 是 reader 類 Activity 的入口點(diǎn)是 onCreate 方法 ContentsActivity 的用戶界面包括一個(gè) ListView 和新聞內(nèi)容 ListView 中 顯示 RSSFeed 中的 RSSItems 列表點(diǎn)擊列表項(xiàng)后則選擇讓列表隱藏而內(nèi)容也顯示后退時(shí)內(nèi)容頁隱藏列表顯示 protected void onCreate Bundle savedInstanceState superonCreate savedInstanceState mScroller new Scroller this setContentView ents Init 初始化數(shù)據(jù) private void Init sure 0 currentItem 0 title null iconBytes null myLinearLayout LinearLayout findViewById arLayout2 myrelative1 LinearLayout findViewById arLayout1 myparams new LinearLayoutLayoutParams layoutParamsFILL_PARENT LayoutParamsFILL_PARENT 0f titleparams new LinearLayoutLayoutParams layoutParamsFILL_PARENT45 myparams1 new LinearLayoutLayoutParams layoutParamsWRAP_CONTENT LayoutParamsWRAP_CONTENT 3f myparams2 new LinearLayoutLayoutParams layoutParamsFILL_PARENT layoutParamsFILL_PARENT 1f landscapeparams new LinearLayoutLayoutParams layoutParamsFILL_PARENT layoutParamsFILL_PARENT intent getIntent feedId1 intentgetLongExtra ReaderDataEntryColumns_ID LongparseLong StringvalueOf mCurScreen 獲取從上一個(gè) Activity 跳轉(zhuǎn)過來時(shí)傳入的值 listView1 ListView findViewById ent_list listView1setFastScrollEnabled true listView1setOnItemClickListener new OnItemClickListener public void onItemClick AdapterView arg0 View arg1 int arg2 long arg3 TODO Autogenerated method stub applyRotation 1 0 90 if arg2 mScrollLayoutgetChildCount mScrollLayoutremoveAllViews cursor getContentResolver query ReaderDataEntryColumnsCONTENT_URI null ReaderDataEntryColumnsUSER_ID new String[] StringvalueOf feedId1 new StringBuilder StringsEMPTY append ReaderDataEntryColumnsDATE append StringsDB_DESC toString if cursor null return 從數(shù)據(jù)庫中將所有關(guān)于該新聞?lì)l道的新聞都查詢出來然后將新聞頁面通過 webview 動(dòng)態(tài)加載到布局當(dāng)中 while cursormoveToNext idPosition cursetColumnIndex ReaderDataEntryColumns_ID int newtitlePosition cursetColumnIndex ReaderDataEntryColumnsTITLE int dateposition cursetColumnIndex ReaderDataEntryColumnsDATE Uri myUri ReaderDataEntryColumnsENTRY_CONTENT_URI cursetString idPosition LinearLayout myrl new LinearLayout ContentsActivitythis myrlsetOrientation LinearLayoutVERTICAL myrladdStatesFromChildren AlwaysMarqueeTextView mytextv new AlwaysMarqueeTextView ContentsActivitythis mytextvsetText cursetString newtitlePosition mytextvsetPadding 20 0 20 0 mytextvsetSingleLine true mytextvsetMarqueeRepeatLimit Integer_VALUE mytextvsetEllipsize TruncateAtMARQUEE mytextvsetTextSize 25f mytextvsetFocusable true mytextvsetTextColor ColorBLACK myrladdView mytextv titleparams LinearLayout timell new Linea