如何处理搜索建议点击项目

Question

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,您可以在其中搜索一句话,你有两个选择:

1-输入关键字并单击搜索图标(键盘),以显示所有匹配结果的列表视图.单击ListView中的单词以检索定义.

2-每当searchView关键字发生变化时,放置关键字并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.

这是当您单击大列表视图中的项而不是建议列表中时调用的搜索函数的代码.

     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,但是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？

Answer 1

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属性来简单地通过可搜索的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...
}