如何处理搜索建议点击项目

时间:2012-08-10 12:37:34

标签: android android-listview android-contentprovider search-suggestion

我使用了官方的Android示例代码" SearchableDictionary" (链接:http://jayxie.com/mirrors/android-sdk/resources/samples/SearchableDictionary/index.html),它为我们提供了一个搜索界面,您可以在其中搜索单词,并且您有两个选项:

1-点击关键字并点击搜索图标(键盘),这样就会出现所有匹配结果的列表视图。单击ListView中的单词以检索定义。

2-放置关键字,每次searchView关键字更改时,都会自动显示一个建议列表,这样您就可以点击建议来检索她的定义。

这是您点击大列表视图中的项目时调用的搜索功能的代码,而不是在建议列表中。

     private void doSearch(String queryStr) { 
            // get a Cursor, prepare the ListAdapter and set it
     final DataBaseHelper myDbHelper = new DataBaseHelper(this);
     myDbHelper.openDataBase();
     Cursor cursor = managedQuery(DictionaryProvider.CONTENT_URI, null, null,
             new String[] {queryStr}, null);
    //Cursor cursor = myDbHelper.fetchListItems(queryStr);
    //cursorr.moveToFirst(); // moves the cursor to the first row in the result set, returns false if the result set is empty.

    startManagingCursor(cursor); /* Managing cursors take care of closing the cursor when
    the activity is destroyed, but they do more than that as well: they will be
    deactivated and required as the activities is stopped and restarted. */

    // set the custom list adapter
    // setListAdapter(new MyListAdapter(this, cursor));

     // Specify the columns we want to display in the result
     String[] from = new String[] { DataBaseHelper.KEY_WORD,
                                    DataBaseHelper.KEY_DEFINITION };

     // Specify the corresponding layout elements where we want the columns to go
     int[] to = new int[] { R.id.title,
                            R.id.details };

     // Create a simple cursor adapter for the definitions and apply them to the ListView
     SimpleCursorAdapter words = new SimpleCursorAdapter(this,
                                   R.layout.list_item_with_description, cursor, from, to);
     final ListView mListView = (ListView) findViewById(R.id.list);
     mListView.setAdapter(words);
    // search_keyword = queryStr ;

     // Define the on-click listener for the list items
     mListView.setOnItemClickListener(new OnItemClickListener() {
         public void onItemClick(AdapterView<?> parent, View view, int position, long id) {


             // Build the Intent used to open WordActivity with a specific word Uri
             Intent wordIntent = new Intent(getApplicationContext(), DefinitionActivity.class);
            // final Bundle bundle = new Bundle();


             Uri data = Uri.withAppendedPath(DictionaryProvider.CONTENT_URI,
                                             String.valueOf(id));


             Log.d(TAG,"clicked row id="+id);

             wordIntent.setData(data);
             wordIntent.putExtra("clicked_item_id",id);

             startActivity(wordIntent);
         }
     });

正如您所看到的,我们可以处理匹配单词列表中单击的项目,但我如何处理在建议的小列表中单击的建议?我想要抓住点击建议的ID,而不是大列表视图中点击的项目。我该怎么做?

1 个答案:

答案 0 :(得分:7)

单击搜索建议时,会向您的可搜索活动发送意图。您可以通过配置android:searchSuggestIntentAction属性,通过可搜索的XML定义此Intent的Action字段,如下所示:

<searchable 
...
    android:searchSuggestIntentAction = "android.intent.action.VIEW">

然后,在您可搜索的活动中:

Intent intent = getIntent();
if (Intent.ACTION_VIEW.equals(intent.getAction()) {
    //a suggestion was clicked... do something about it...
}