Question

有人知道如何动态设置android搜索对话框提示吗？ T尝试做类似的事情：

<?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"
 android:id="@+id/search_dialog_text">
</searchable>

某处：

@Override
public boolean onSearchRequested() {
  Bundle appSearchData = new Bundle();
  appSearchData.putString("SomeSpecificParam", SomeClass.class.getName());
  startSearch("", false, appSearchData, false);
  EditText  text = (EditText )findViewById(R.id.search_dialog_text);
  text.setHint("Search something else");
  return true;
}

但文本等于null。

期待你的建议。感谢。

Answer 1

这感觉非常hacky但对我有用 - 不是真正的动态，而是在我需要的两个搜索提示之间交替工作：

我创建了第二个searchable.xml（如Android search docs中所述），名为searchable2.xml，我的第二个搜索提示已定义。
我创建了一个从原始活动扩展而来的虚拟活动，并且无法覆盖任何内容。

在清单中，虚拟活动与新的searchable2.xml相关联：

<activity android:name=".MainActivity">
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <action android:name="android.intent.action.SEARCH" />
    </intent-filter>
    <meta-data android:name="android.app.searchable"
        android:resource="@xml/searchable"/>
</activity>

<activity android:name=".DummyActivity">
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <action android:name="android.intent.action.SEARCH" />
    </intent-filter>
    <meta-data android:name="android.app.searchable"
        android:resource="@xml/searchable2"/>
</activity>

在'MainActivity'中，我覆盖'onSearchRequested（）'以引用适当的可搜索活动：


public boolean onSearchRequested()
 {
       SearchManager searchManager = (SearchManager)getSystemService(Context.SEARCH_SERVICE);

           if(searchManager!=null)
           {
               // start the search with the appropriate searchable activity
               // so we get the correct search hint in the search dialog
               if(/* your condition here */)
                   searchManager.startSearch(null, false,new ComponentName(this, MainActivity.class), null, false);
               else
                   searchManager.startSearch(null, false,new ComponentName(this, DummyActivity.class), null, false);

           return true;
       }
       return false;
   }

讨厌。但绝望的时候需要采取绝望的措施......

AFAIK，通过查看Android源代码，该类仅用于查找元数据，但如果有人有不同的信息，请告知我们。

Answer 2

他们在http://developer.android.com/guide/topics/search/search-dialog.html#SearchableConfiguration添加了一条说明

的说明

注意：系统使用此文件来实例化SearchableInfo对象，但您无法在运行时自己创建此对象 - 您必须以XML格式声明可搜索的配置。

因此，您的问题的答案似乎是您无法动态设置搜索对话框提示。

Answer 3

我使用OnActionExpandListener和自定义actionView设法用ABS完成此操作，例如：

menu.add("Search")
.setActionView(R.layout.collapsible_edittext)
.setOnActionExpandListener(new MenuItem.OnActionExpandListener()
{
    @Override
    public boolean onMenuItemActionExpand(MenuItem item) {
        ((EditText) item.getActionView()).setHint("Your custom text here");
        return true;
    }

    @Override
    public boolean onMenuItemActionCollapse(MenuItem item) {
        return true;
    }
});

with collapsible_edittext.xml：

<EditText
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:textColor="@color/search_fg"
    android:background="@drawable/textfield_default_holo_light"
    android:hint="[will be replaced at runtime]"/>

Answer 4

如果您使用的是Toolbar和SearchView小部件，则可以通过调用以下内容轻松设置搜索查询提示：

SearchView.setQueryHint(CharSequence hint)

Answer 5

看起来你几乎就在那里。

SearchDialog来源执行此操作以使自动完成功能可编辑。

mSearchAutoComplete = (SearchAutoComplete) findViewById(com.android.internal.R.id.search_src_text);

（请注意SearchAutoComplete类是AutoCompleteTextView）的子类

Answer 6

有一个比上述任何一个简单得多的答案。它为您的活动加载默认的searchable.xml，然后使用java反射更新SearchableInfo实例中的私有mHintId字段：

@Override
public void onPrepareOptionsMenu(Menu menu) {
    SearchManager searchManager = (SearchManager)getActivity().getSystemService(Context.SEARCH_SERVICE);
    SearchableInfo si = searchManager.getSearchableInfo( getActivity().getComponentName() );

    try {
        Field mHintId = si.getClass().getDeclaredField("mHintId");
        mHintId.setAccessible(true);
        mHintId.setInt(si, R.string.your_custom_hint);
    } catch (Exception e) {
    }

    MenuItem mi = menu.findItem(R.id.menu_search);
    SearchView searchView = (SearchView)mi.getActionView();
    searchView.setSearchableInfo( si );
}

Answer 7

感谢Murakami先生的想法，我已经实现了相同的概念来执行切换搜索，并且根据我的观点，它不是黑客，而是它的OOP之美。程序栏下方有一个切换图标，可在搜索提示之间切换。

RestaurantListingActivity.java

public class RestaurantListingActivity extends BaseMainActivity implements
TabListener {
private boolean isRestaurantSearch = true;
private SearchManager searchManager;
private SearchView searchView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    ActionBar aBar = getActionBar();
    aBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    aBar.addTab(aBar.newTab().setText("Place Order").setTabListener(this));
    aBar.addTab(aBar.newTab().setText("My Account").setTabListener(this));
    aBar.addTab(aBar.newTab().setText("Favorite").setTabListener(this));
    aBar.addTab(aBar.newTab().setText("Vendor Portal").setTabListener(this));
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.restaturant_listing_menu, menu);
    searchManager = (SearchManager) getSystemService(SEARCH_SERVICE);
    searchView = (SearchView) menu.findItem(R.id.rlm_search)
            .getActionView();
    searchView.setSearchableInfo(searchManager
            .getSearchableInfo(new ComponentName(this,
                    RestaurantListingActivity.class)));
    return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case R.id.rlm_toggle:
isRestaurantSearch = !isRestaurantSearch;
    if (isRestaurantSearch)
        searchView.setSearchableInfo(searchManager
                .getSearchableInfo(new ComponentName(this,
                        RestaurantListingActivity.class)));
    else
        searchView.setSearchableInfo(searchManager
                .getSearchableInfo(new ComponentName(this,
                        RestaurantFoodSwitcherActivity.class)));


    break;
case R.id.rlm_change_loc:

    break;
case R.id.rlm_filter_search:

    break;
}

    return super.onOptionsItemSelected(item);
}

@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
    // TODO Auto-generated method stub

}

@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}

@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
    // TODO Auto-generated method stub

}

@Override
public void setScreenData(Object screenData, int event, long time) {
    // TODO Auto-generated method stub

}

@Override
public Activity getMyActivityReference() {
    // TODO Auto-generated method stub
    return null;
}

@Override
public void onClick(View v) {
    // TODO Auto-generated method stub

}
}

restaurant_listing_menu

<item
    android:id="@+id/rlm_toggle"
    android:showAsAction="always"
    android:title="Toggle Search"
    android:icon="@drawable/ic_action_refresh"
    >
</item>
<item
    android:id="@+id/rlm_search"
    android:showAsAction="always|collapseActionView"
    android:title="Search"
    android:icon="@drawable/ic_action_search"
    android:actionViewClass="android.widget.SearchView"
    >
</item>
<item
    android:id="@+id/rlm_filter_search"
    android:showAsAction="ifRoom"
    android:title="Filter Search"
    android:icon="@drawable/ic_action_settings"
    >
</item>
<item
    android:id="@+id/rlm_change_loc"
    android:showAsAction="ifRoom"
    android:title="Change Location"
    android:icon="@drawable/ic_action_location_off"
    >
</item>

res＆gt; xml

中的searchablerestra.xml

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

RestaurantFoodSwitcherActivity.java

public class RestaurantFoodSwitcherActivity extends RestaurantListingActivity {
}

searchablefood.xml

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

的manifest.xml

<activity         android:name="com.example.app.ui.activity.RestaurantListingActivity" >
    <!-- This intent-filter identifies this activity as "searchable" -->
    <intent-filter>
        <action android:name="android.intent.action.SEARCH" />

        <category android:name="android.intent.category.DEFAULT" />
    </intent-filter>
    <!-- This metadata entry provides further configuration details for searches -->
    <!-- that are handled by this activity. -->
    <meta-data
        android:name="android.app.searchable"
        android:resource="@xml/searchablerestra"

         />
</activity>
<activity android:name="com.example.app.ui.activity.RestaurantFoodSwitcherActivity">
    <!-- This intent-filter identifies this activity as "searchable" -->
    <intent-filter>
        <action android:name="android.intent.action.SEARCH" />

        <category android:name="android.intent.category.DEFAULT" />
    </intent-filter>
    <!-- This metadata entry provides further configuration details for searches -->
    <!-- that are handled by this activity. -->
     <meta-data
        android:name="android.app.searchable"
        android:resource="@xml/searchablefood"
         />
</activity>

动态设置搜索提示

7 个答案: