課程設(shè)計報告模版

1、湘南學(xué)院課程設(shè)計報告課程名稱： 嵌入式系統(tǒng) 設(shè)計題目： Android 客戶端開發(fā) 專業(yè)班級： 網(wǎng)絡(luò)工程1班 學(xué)生姓名： 歐陽亞平 學(xué)生學(xué)號： 2 指導(dǎo)老師： 2013年 月 日目 錄1概述11.1背景11.2設(shè)計要求21.3開發(fā)環(huán)境31.4關(guān)鍵技術(shù)52概要設(shè)計82.1軟件結(jié)構(gòu)82.2各功能模塊設(shè)計103詳細設(shè)計與實現(xiàn)13 3.1界面說明16 3.2程序流程15 3.3關(guān)鍵代碼154測試分析184.1測試方法184.2測試用例194.3測試結(jié)果195小結(jié)19參考文獻 24附錄（備選）2624 / 26文檔可自由編輯打印1 概述通過API接口服務(wù)器返回json數(shù)據(jù)。再將返回來的json數(shù)據(jù)時行解

2、析，讓其顯示在手機上。 1.1背景隨著手機和互聯(lián)網(wǎng)的使用越來越普遍，通過手機瀏覽網(wǎng)頁越來來方便，但是如果用手機瀏覽電腦版網(wǎng)頁就會使得用戶體驗很差，因為手機手頻目太小。這樣就需要將電腦版網(wǎng)頁轉(zhuǎn)化成手機版網(wǎng)頁。1.2設(shè)計要求 通過API接口訪問服務(wù)器返回json數(shù)據(jù)進行解析，得到需要顯示手機上的圖片或文字。1.3開發(fā)環(huán)境eclipse插件ADT;1.4關(guān)鍵技術(shù)將如下json數(shù)據(jù)進行解析：2概要設(shè)計2.1、軟件結(jié)構(gòu)1. 顯示網(wǎng)頁主界面2. 登入顯示已購買商品2.2、各功能模塊設(shè)計1. 顯示網(wǎng)頁主界面：2. 登入顯示已購買商品3詳細設(shè)計與實現(xiàn)3.1、界面說明利用android各種控件來布局界面:如Te

3、xtView,Button,ListView等;3.2、程序流程先調(diào)用api接口：URL url=new URL(urls);HttpURLConnection conn=(HttpURLConnection)url.openConnection();String result=;int responseCode = conn.getResponseCode();if (responseCode = HttpURLConnection.HTTP_OK) InputStream is = conn.getInputStream();byte data = new byte1024;int len

4、 = 0;ByteArrayOutputStream out = new ByteArrayOutputStream();while (len = is.read(data) != -1) out.write(data, 0, len);返回json數(shù)據(jù)，再對此數(shù)據(jù)進行處理：for (int i = offset; i totalnumber; +i) JSONObject obj = data.getJSONObject(i);JSONObject partner = obj.getJSONObject(partner);Map map = new HashMap();map.put(con

5、tact, partner.get(contact).toString();map.put(title, obj.get(title).toString();map.put(image, obj.get(image).toString();map.put(team_price, obj.get(team_price).toString();map.put(market_price, obj.get(market_price).toString();map.put(now_number, obj.get(now_number).toString() + 人);allvalues.add(map)

6、;最后再顯示在手機的界面：ListView.setAdapter(new Adapter);3.3、關(guān)鍵代碼1. public class MainActivity extends Activity private ListView list = null;private TextView footView = null;private Handler handler = null;private ProductListAdapter adapter = null;private ListMap allvalues = new ArrayListMap();private Spinner ca

7、talog = null;private Button orderby = null;private ArrayAdapter adapterCatalog = null;private ;Overrideprotected void onCreate(Bundle savedInstanceState) super.onCreate(savedInstanceState);Groable.init(this);setContentView(R.layout.activity_main);list = (ListView) findViewById(R.id.list);catalog = (

8、Spinner) findViewByItalog);orderby = (Button) findViewById(R.id.order_by);adapterCatalog = ArrayAdapter.createFromResource(this, talog,android.R.layout.simple_spinner_item);adapterCatalog.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);catalog.setAdapter(adapterCatalog);catalo

9、g.setPrompt(請選擇類別);super.registerForContextMenu(this.orderby);footView = new TextView(this);footView.setTextSize(20);footView.setTextColor(Color.WHITE);footView.setGravity(Gravity.CENTER);footView.setText(正在查詢，請稍候.);list.addFooterView(footView);imagecache = new File(/sdcard);if (!imagecache.exists()

10、 imagecache.mkdirs();handler = new Handler() Overridepublic void handleMessage(Message msg) if (msg.what = 0) list.setAdapter(adapter); else ;final ProgressDialog pro = new ProgressDialog(MainActivity.this);pro.setTitle(提示);pro.setMessage(正在加載數(shù)據(jù)，請稍后.);pro.show();Thread t = new Thread() Overridepubli

11、c void run() try loadData();adapter = new ProductListAdapter(allvalues,MainActivity.this, imagecache); catch (Exception e) e.printStackTrace();handler.sendEmptyMessage(0);pro.dismiss();t.start();Overridepublic void onCreateContextMenu(ContextMenu menu, View v,ContextMenuInfo menuInfo) super.onCreate

12、ContextMenu(menu, v, menuInfo);menu.setHeaderTitle(排序);super.getMenuInflater().inflate(R.menu.order_by, menu);public void loadData() throws Exception String results = Groable.getUrlResult(Groable.BASE_URL+ Tuan/goodsList);JSONObject root = new JSONObject(results);JSONObject result = root.getJSONObje

13、ct(result);JSONArray data = result.getJSONArray(data);System.out.println(data.toString();for (int i = 0; i data.length(); +i) JSONObject obj = data.getJSONObject(i);JSONObject partner = obj.getJSONObject(partner);Map map = new HashMap();map.put(contact, partner.get(contact).toString();map.put(title,

14、 obj.get(title).toString();map.put(image, obj.get(image).toString();map.put(team_price, obj.get(team_price).toString();map.put(market_price, obj.get(market_price).toString();map.put(now_number, obj.get(now_number).toString() + 人);allvalues.add(map);Overridepublic boolean onCreateOptionsMenu(Menu men

15、u) menu.add(menu.NONE, menu.FIRST + 1, 1, 團購).setIcon(android.R.drawable.ic_menu_edit);menu.add(menu.NONE, menu.FIRST + 2, 2, 周邊).setIcon(android.R.drawable.ic_menu_view);menu.add(menu.NONE, menu.FIRST + 3, 3, 團購券).setIcon(android.R.drawable.ic_menu_save);menu.add(menu.NONE, menu.FIRST + 4, 4, 團購).s

16、etIcon(android.R.drawable.ic_menu_more);return true;Overridepublic boolean onOptionsItemSelected(MenuItem item) switch (item.getItemId() case Menu.FIRST + 3:Intent it = new Intent(MainActivity.this, Login.class);MainActivity.this.startActivity(it);break;return false;Overridepublic void onOptionsMenu

17、Closed(Menu menu) super.onOptionsMenuClosed(menu);Overridepublic boolean onPrepareOptionsMenu(Menu menu) return true;Overrideprotected void onDestroy() for ( : imagecache.listFiles() ();super.onDestroy();public class ProductListAdapter extends BaseAdapter private ListMap allvalues;private Context ct

18、x;private LayoutInflater inflater;private ;public ProductListAdapter(ListMap allvalues,Context context, ) this.allvalues = allvalues;this.ctx = context;this.imagecache = imagecache;Overridepublic int getCount() return allvalues.size();Overridepublic Object getItem(int position) return allvalues.get(

19、position);Overridepublic long getItemId(int position) return position;Overridepublic View getView(int position, View convertView, ViewGroup parent) TextView contact = null;TextView title = null;TextView price = null;TextView marketprice = null;TextView now_number = null;ImageView image = null;if (co

20、nvertView = null) inflater = (LayoutInflater) ctx.getSystemService(ctx.LAYOUT_INFLATER_SERVICE);convertView = inflater.inflate(R.duct_list_line, null);contact = (TextView) convertView.findViewById(R.duct_contact);title = (TextView) convertView.findViewById(R.duct_title);price =

21、 (TextView) convertView.findViewById(R.id.team_price);marketprice = (TextView) convertView.findViewById(R.id.market_price);now_number = (TextView) convertView.findViewById(R.id.now_number);image = (ImageView) convertView.findViewById(R.ductimage);convertView.setTag(new DataWrap(image, title, p

22、rice, marketprice,contact, now_number); else DataWrap datawrap = (DataWrap) convertView.getTag();contact = datawrap.contact;title = datawrap.title;price = datawrap.price;now_number = datawrap.now_number;marketprice = datawrap.marketprice;image = datawrap.image;Map map = allvalues.get(position);conta

23、ct.getLayoutParams().height = Groable.SCREEN_HEIGHT / 20;title.getLayoutParams().height = Groable.SCREEN_HEIGHT / 10;price.getLayoutParams().height = Groable.SCREEN_HEIGHT / 20;image.getLayoutParams().height = Groable.SCREEN_HEIGHT / 5;title.setText(map.get(title).toString();price.setText(￥ + map.ge

24、t(team_price).toString();marketprice.setText(/ + map.get(market_price).toString();now_number.setText(map.get(now_number).toString();contact.setText(map.get(contact).toString();String imageurl = (String) map.get(image);DownloadImageUtils.setImageUrl(Groable.UPLOAD_URL + imageurl, image,imageurl, imag

25、ecache);return convertView;private final class DataWrap ImageView image;TextView title;TextView price;TextView marketprice;TextView contact;TextView now_number;public DataWrap(ImageView image, TextView title, TextView price,TextView marketprice, TextView contact, TextView now_number) this.contact =

26、contact;this.image = image;this.marketprice = marketprice;this.now_number = now_number;this.price = price;this.title = title;public class DownloadImageUtils public static void setImageUrl(final String url, final ImageView img,final String imgurl, final ) final Handler handler = new Handler() Overrid

27、epublic void handleMessage(Message msg) Uri uri = (Uri) msg.obj;if (uri != null & img != null) img.setImageURI(uri);System.out.println();Thread t = new Thread() Overridepublic void run() Message msg = new Message();String = new MD5Code().getMD5ofStr(imgurl)+ imgurl.substring(imgurl.lastIndexOf(.);Fi

28、le f = new , );InputStream is = null;OutputStream os = null;/ OutputStream os = null;try if (f.exists() msg.what = 1;msg.obj = Uri.fromFile(f); else is = Groable.getUrlInputStream(url);os = new (f);byte data = new byte1024;int len = 0;while (len = is.read(data) != -1) os.write(data, 0, len);Uri uri=

29、 Uri.fromFile(f);msg.what = 1;msg.obj =uri;handler.sendMessage(msg); catch (Exception e) e.printStackTrace(); finally try if (is != null & os != null) is.close();os.close(); catch (Exception e) e.printStackTrace();t.start(); public class Groable public static String BASE_URL=*; public static String

30、WELCOME_URL=BASE_URL+?s=Tuan/goodsList;public static int SCREEN_WIDTH;public static int SCREEN_HEIGHT;public static String CACHE_IMAGE_DIR;public static String UPLOAD_URL=*;public static ;public static void init(Activity a)SCREEN_HEIGHT=a.getWindowManager().getDefaultDisplay().getHeight();SCREEN_WIDTH=a.getWindowManager().getDefaultDisplay().getWidth();System.out.println(Environment.getExternalStorageState()+yaping);CACHE_IMAGE_DIR=a.get().getPath() + /im