android activity onSearchRequested()

1.manifest中声明处理搜索的Activity（仅此声明后就可以调用）

<meta-data android:name="android.app.default_searchable" android:value=".OnSearchAppsList" />

2.Activity定义

<activity android:name=".OnSearchAppsList"
android:configChanges="orientation|keyboardHidden|navigation"
android:label="@string/Market">
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
<meta-data android:name="android.app.searchable" android:resource="@xml/searchable" />
</activity>

3.searchable.xml定义

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

4.调用 Search功能

　　onSearchRequested();
5.截获 参数
　　getIntent().getStringExtra(SearchManager.QUERY);

这后即可以随意处理搜索请求了。

具体使用时可以结合Activity的showDialog方法:

private static final int DIALOG_SEARCH_TEXT = 1;

@Override
public boolean onSearchRequested() {
       showDialog(DIALOG_SEARCH_TEXT);
       return false;
}

 @Override
    protected Dialog onCreateDialog(int id) {
        switch (id) {
            case DIALOG_SEARCH_TEXT:
                LayoutInflater factory = LayoutInflater.from(this);
                final View searchView = factory.inflate(R.layout.dialog_search_article, null);
                final EditText editText = (EditText)searchView.findViewById(R.id.search_query);
                editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
                    @Override
                    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
                        if (actionId == EditorInfo.IME_ACTION_SEARCH
                                || actionId == EditorInfo.IME_NULL) {
                            InputMethodManager inputMethodManager = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
                            inputMethodManager.hideSoftInputFromWindow(
                                    editText.getApplicationWindowToken(),
                                    InputMethodManager.HIDE_NOT_ALWAYS);
                            dismissDialog(DIALOG_SEARCH_TEXT);
                            doSearch(editText);
                            return true;
                        }
                        return false;
                    }
                });
                return new AlertDialog.Builder(this)
                        .setTitle(R.string.search_article_title)
                        .setView(searchView)
                        .setPositiveButton(R.string.search_article_ok,
                                new DialogInterface.OnClickListener() {
                                    @Override
                                    public void onClick(DialogInterface dialog, int whichButton) {
                                        doSearch(editText);
                                    }
                                })
                        .setNegativeButton(R.string.search_article_cancel,
                                new DialogInterface.OnClickListener() {
                                    @Override
                                    public void onClick(DialogInterface dialog, int whichButton) {
                                    }
                                }).create();
        }
        return null;
    }