文章标题

/*这个demo演示了search widget的用法，通过将该组件应用在action bar中。 * 1.创建右键菜单，将菜单项指向SearchViewandroid:actionViewClass="android.widget.SearchView" * 2.在res/xml目录下建立searchable.xml,根节点为：searchable该文件是对searchView的基本配置 * 如搜索框中显示的提示信息，搜索建议的相关信息等等。 * 3.searchView接收与用户交互的信息，但执行搜索并处理搜索结果却在另一个activity中完成（本例为InternalSelectionView） * 4.当用户提交搜索，系统会选择一个合适的activity并将搜索关键字附加到intent当中发送出去 * 5.SearchableActivity接收到搜索关键字并执行搜索和自理搜索结果 * 6.需要在配置文件中配置SearchableActivity添加： * <intent-filter>        <action android:name="android.intent.action.SEARCH" />   </intent-filter>   <meta-data        android:name="android.app.searchable"       android:resource="@xml/searchable"/>*/public class MainActivity extends Activity {    private SearchView mSearchView;    private SearchManager mSearchManager;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        getWindow().requestFeature(Window.FEATURE_ACTION_BAR);        setContentView(R.layout.activity_main);        mSearchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        super.onCreateOptionsMenu(menu);        MenuInflater inflater = getMenuInflater();        inflater.inflate(R.menu.searchview_in_menu, menu);        MenuItem searchItem = menu.findItem(R.id.action_search);        mSearchView = (SearchView) searchItem.getActionView();        // ComponentName cn=new ComponentName(this,        // InternalSelectionView.class);        // SearchableInfo info=mSearchManager.getSearchableInfo(cn);        SearchableInfo info = mSearchManager                .getSearchableInfo(getComponentName());        // System.out.println(info.getSuggestAuthority().toString());        List<SearchableInfo> seachables = mSearchManager                .getSearchablesInGlobalSearch();        int N = seachables.size();        System.out.println(N);        for (SearchableInfo inf : seachables) {             System.out.println(inf.getSuggestAuthority().toString());            if (inf.getSuggestAuthority() != null                    && inf.getSuggestAuthority().startsWith("com.example")) {                info=inf;            }        }        mSearchView.setSearchableInfo(info);        return true;    }}

searchable_in_menu

<?xml version="1.0" encoding="utf-8"?><menu xmlns:android="http://schemas.android.com/apk/res/android" >     <item android:id="@+id/action_search"          android:title="search"          android:icon="@android:drawable/ic_menu_search"          android:showAsAction="always"          android:actionViewClass="android.widget.SearchView" /></menu>

searchable.xml
android:includeInGlobalSearch=”true”将该searchable包含在全局中当我们使用
mSearchManager .getSearchablesInGlobalSearch();时就可以获取到该Searchable

<?xml version="1.0" encoding="utf-8"?><searchable xmlns:android="http://schemas.android.com/apk/res/android"    android:hint="@string/search_hint"    android:label="@string/search_label"    android:searchSuggestAuthority="com.example.android.apis.SuggestionProvider"    android:searchSuggestSelection=" ? "    android:includeInGlobalSearch="true" ></searchable>

InternalSelectionView.java

public class InternalSelectionView extends Activity {    private TextView tv;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.searchable_activity);        tv=(TextView) findViewById(R.id.result);        doSearch(getIntent());    }    @Override    protected void onNewIntent(Intent intent) {        super.onNewIntent(intent);        doSearch(intent);    }    private void doSearch(Intent intent) {        if(intent==null){            //System.out.println("意图为空！");            return;        }else{            System.out.println(intent.getAction().toString());            if(Intent.ACTION_SEARCH.equals(intent.getAction())){                String text=intent.getStringExtra(SearchManager.QUERY);            //  System.out.println(text);                tv.setText(text);            }        }    }}

searchable_activity.xml

<?xml version="1.0" encoding="utf-8"?><TextView xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/result"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:text="这是进入Search的界面" ></TextView>

配置文件
需要注意的是android:name=”android.app.searchable”的值必须为android.app.searchable。否则我们在通过mSearchManager .getSearchableInfo(getComponentName());获取SearchableInfo时获取到的值为空。

<activity android:name="com.example.draganddrop.InternalSelectionView">            <intent-filter>                <action android:name="android.intent.action.SEARCH" />            </intent-filter>            <meta-data                 android:name="android.app.searchable"                android:resource="@xml/searchable"/>        </activity>