AndroidAnnotations(Code Diet)android快速开发框架

(1) 依赖注入：包括view，extras，系统服务，资源等等

(2) 简单的线程模型，通过annotation表示方法运行在ui线程还是后台线程

(3) 事件绑定：通过annotation表示view的响应事件，不用在写内部类

(4) REST客户端：定义客户端接口，自动生成REST请求的实现

(5) 没有你想象的复杂：AndroidAnnotations只是在在编译时生成相应子类

(6) 不影响应用性能：仅50kb，在编译时完成，不会对运行时有性能影响。

PS：与roboguice的比较：roboguice通过运行时读取annotations进行反射，所以可能影响应用性能，而AndroidAnnotations在编译时生成子类，所以对性能没有影响

  1 public class BookmarksToClipboardActivity extends Activity {   2      3   BookmarkAdapter adapter;   4     5   ListView bookmarkList;   6     7   EditText search;   8     9   BookmarkApplication application;  10    11   Animation fadeIn;  12    13   ClipboardManager clipboardManager;  14    15   @Override  16   protected void onCreate(Bundle savedInstanceState) {  17     super.onCreate(savedInstanceState);  18    19     requestWindowFeature(Window.FEATURE_NO_TITLE);  20     getWindow().setFlags(FLAG_FULLSCREEN, FLAG_FULLSCREEN);  21    22     setContentView(R.layout.bookmarks);  23    24     bookmarkList = (ListView) findViewById(R.id.bookmarkList);  25     search = (EditText) findViewById(R.id.search);  26     application = (BookmarkApplication) getApplication();  27     fadeIn = AnimationUtils.loadAnimation(this, anim.fade_in);  28     clipboardManager = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);  29    30     View updateBookmarksButton1 = findViewById(R.id.updateBookmarksButton1);  31     updateBookmarksButton1.setOnClickListener(new OnClickListener() {  32    33       @Override  34       public void onClick(View v) {  35         updateBookmarksClicked();  36       }  37     });  38    39     View updateBookmarksButton2 = findViewById(R.id.updateBookmarksButton2);  40     updateBookmarksButton2.setOnClickListener(new OnClickListener() {  41    42       @Override  43       public void onClick(View v) {  44         updateBookmarksClicked();  45       }  46     });  47    48     bookmarkList.setOnItemClickListener(new OnItemClickListener() {  49    50       @Override  51       public void onItemClick(AdapterView<?> p, View v, int pos, long id) {  52         Bookmark selectedBookmark = (Bookmark) p.getAdapter().getItem(pos);  53         bookmarkListItemClicked(selectedBookmark);  54       }  55     });  56    57     initBookmarkList();  58   }  59    60   void initBookmarkList() {  61     adapter = new BookmarkAdapter(this);  62     bookmarkList.setAdapter(adapter);  63   }  64    65   void updateBookmarksClicked() {  66     UpdateBookmarksTask task = new UpdateBookmarksTask();  67    68     task.execute(search.getText().toString(), application.getUserId());  69   }  70     71   private static final String BOOKMARK_URL = //  72   "http://www.bookmarks.com/bookmarks/{userId}?search={search}";  73     74     75   class UpdateBookmarksTask extends AsyncTask<String, Void, Bookmarks> {  76    77     @Override  78     protected Bookmarks doInBackground(String... params) {  79       String searchString = params[0];  80       String userId = params[1];  81    82       RestTemplate client = new RestTemplate();  83       HashMap<String, Object> args = new HashMap<String, Object>();  84       args.put("search", searchString);  85       args.put("userId", userId);  86       HttpHeaders httpHeaders = new HttpHeaders();  87       HttpEntity<Bookmarks> request = new HttpEntity<Bookmarks>(httpHeaders);  88       ResponseEntity<Bookmarks> response = client.exchange( //  89           BOOKMARK_URL, HttpMethod.GET, request, Bookmarks.class, args);  90       Bookmarks bookmarks = response.getBody();  91    92       return bookmarks;  93     }  94    95     @Override  96     protected void onPostExecute(Bookmarks result) {  97       adapter.updateBookmarks(result);  98       bookmarkList.startAnimation(fadeIn);  99     } 100      101   } 102   103   void bookmarkListItemClicked(Bookmark selectedBookmark) { 104     clipboardManager.setText(selectedBookmark.getUrl()); 105   } 106   107 }

 1 @NoTitle  2 @Fullscreen  3 @EActivity(R.layout.bookmarks)  4 public class BookmarksToClipboardActivity extends Activity {  5     6   BookmarkAdapter adapter;  7     8   @ViewById  9   ListView bookmarkList; 10   11   @ViewById 12   EditText search; 13    14   @App 15   BookmarkApplication application; 16    17   @RestService 18   BookmarkClient restClient; 19   20   @AnimationRes 21   Animation fadeIn; 22    23   @SystemService 24   ClipboardManager clipboardManager; 25   26   @AfterViews 27   void initBookmarkList() { 28     adapter = new BookmarkAdapter(this); 29     bookmarkList.setAdapter(adapter); 30   } 31    32   @Click({R.id.updateBookmarksButton1, R.id.updateBookmarksButton2}) 33   void updateBookmarksClicked() { 34     searchAsync(search.getText().toString(), application.getUserId()); 35   } 36    37   @Background 38   void searchAsync(String searchString, String userId) { 39     Bookmarks bookmarks = restClient.getBookmarks(searchString, userId); 40     updateBookmarks(bookmarks); 41   } 42   43   @UiThread 44   void updateBookmarks(Bookmarks bookmarks) { 45     adapter.updateBookmarks(bookmarks); 46     bookmarkList.startAnimation(fadeIn); 47   } 48    49   @ItemClick 50   void bookmarkListItemClicked(Bookmark selectedBookmark) { 51     clipboardManager.setText(selectedBookmark.getUrl()); 52   } 53   54 }

1 @Rest("http://www.bookmarks.com") 2 public interface BookmarkClient { 3    4   @Get("/bookmarks/{userId}?search={search}") 5   Bookmarks getBookmarks(String search, String userId); 6   7 }