如何在Android工具栏中使用SearchView

Question

我正在使用的代码是使用Toolbar和膨胀a menu.

这是代码

private Toolbar mToolbar;
mToolbar.inflateMenu(R.menu.chat_screen_menu);
setupMenu ();
private void setupMenu ()
   {
   mMenu = mToolbar.getMenu();
   if (mMenu != null)
      {
       if (mChatPager != null && mChatPager.getCurrentItem() > 0)
          {
          mMenu.setGroupVisible(R.id.menu_group_chats, true);
          mMenu.setGroupVisible(R.id.menu_group_contacts, false);
          }
       else
          {
           mMenu.setGroupVisible(R.id.menu_group_chats, false);
           mMenu.setGroupVisible(R.id.menu_group_contacts, true);
           mMenu.setGroupVisible(R.id.menu_group_otr_verified,false);
           mMenu.setGroupVisible(R.id.menu_group_otr_unverified,false);
           mMenu.setGroupVisible(R.id.menu_group_otr_off,false);
          }
    }
    mToolbar.setOnMenuItemClickListener(new OnMenuItemClickListener ()
    {
    ..........
    }
}

但现在,他们需要一个Search按钮tool_bar.我设法说出来了,我在这里按照指南 当我尝试写一些东西进行搜索时,我已经测试listener过的东西来测试从未显示过的东西.表示listener不起作用

@Override
    public boolean onCreateOptionsMenu(Menu menu) {

    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.chat_screen_menu, menu);

    SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
    mSearchView = (SearchView) MenuItemCompat.getActionView(menu.findItem(R.id.action_menu_search));
    final Toast toast = new Toast(mApp);

    if (mSearchView != null )
    {
        mSearchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
        mSearchView.setIconifiedByDefault(false);

        SearchView.OnQueryTextListener queryTextListener = new SearchView.OnQueryTextListener()
        {
            public boolean onQueryTextChange(String newText)
            {
                mSearchString = newText;
                //doFilterAsync(mSearchString);
                toast.makeText(getApplicationContext(), "Test1", Toast.LENGTH_LONG).show();
                return true;
            }

            public boolean onQueryTextSubmit(String query)
            {
                mSearchString = query;
                //doFilterAsync(mSearchString);
                toast.makeText(getApplicationContext(), "Test2", Toast.LENGTH_LONG).show();

                return true;
            }
        };

        mSearchView.setOnQueryTextListener(queryTextListener);
    }

    return true;

}

Answer 1

你必须使用Appcompat库.使用如下:

dashboard.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android" 
      xmlns:tools="http://schemas.android.com/tools"
      xmlns:app="http://schemas.android.com/apk/res-auto">

    <item
        android:id="@+id/action_search"
        android:icon="@android:drawable/ic_menu_search"
        app:showAsAction="always|collapseActionView"
        app:actionViewClass="android.support.v7.widget.SearchView"
        android:title="Search"/>
</menu>

活动文件:

public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater menuInflater = getMenuInflater();
    menuInflater.inflate(R.menu.dashboard, menu);

     MenuItem searchItem = menu.findItem(R.id.action_search);

    SearchManager searchManager = (SearchManager) MainActivity.this.getSystemService(Context.SEARCH_SERVICE);

    SearchView searchView = null;
    if (searchItem != null) {
        searchView = (SearchView) searchItem.getActionView();
    }
    if (searchView != null) {
        searchView.setSearchableInfo(searchManager.getSearchableInfo(MainActivity.this.getComponentName()));
    }
        return super.onCreateOptionsMenu(menu);
}

清单文件:

override fun onCreateOptionsMenu(menu: Menu?): Boolean {
    menuInflater.inflate(R.menu.menu_search, menu)

    val searchItem: MenuItem? = menu?.findItem(R.id.action_search)
    val searchManager = getSystemService(Context.SEARCH_SERVICE) as SearchManager
    val searchView: SearchView? = searchItem?.actionView as SearchView

    searchView?.setSearchableInfo(searchManager.getSearchableInfo(componentName))
    return super.onCreateOptionsMenu(menu)
}

可搜索的xml文件:

<meta-data 
      android:name="android.app.default_searchable" 
      android:value="com.apkgetter.SearchResultsActivity" /> 

        <activity
            android:name="com.apkgetter.SearchResultsActivity"
            android:label="@string/app_name"
            android:launchMode="singleTop" >
            <intent-filter>
                <action android:name="android.intent.action.SEARCH" />
            </intent-filter>
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />
            </intent-filter>

            <meta-data
                android:name="android.app.searchable"
                android:resource="@xml/searchable" />
        </activity>

最后,你的SearchResultsActivity班级代码.用于显示搜索结果.

Answer 2

如果您想在自己的内部设置搜索工具Fragment,只需添加以下几行:

第1步 - 向您添加搜索字段toolbar:

<item
    android:id="@+id/action_search"
    android:icon="@android:drawable/ic_menu_search"
    app:showAsAction="always|collapseActionView"
    app:actionViewClass="android.support.v7.widget.SearchView"
    android:title="Search"/>

第2步 - 将逻辑添加到您的onCreateOptionsMenu()

import android.support.v7.widget.SearchView; // not the default !

@Override
public boolean onCreateOptionsMenu( Menu menu) {
    getMenuInflater().inflate( R.menu.main, menu);

    MenuItem myActionMenuItem = menu.findItem( R.id.action_search);
    searchView = (SearchView) myActionMenuItem.getActionView();
    searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
        @Override
        public boolean onQueryTextSubmit(String query) {
            // Toast like print
            UserFeedback.show( "SearchOnQueryTextSubmit: " + query);
            if( ! searchView.isIconified()) {
                searchView.setIconified(true);
            }
            myActionMenuItem.collapseActionView();
            return false;
        }
        @Override
        public boolean onQueryTextChange(String s) {
            // UserFeedback.show( "SearchOnQueryTextChanged: " + s);
            return false;
        }
    });
    return true;
}

Answer 3

如果要直接在工具栏中添加它.

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.AppBarLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <android.support.v7.widget.Toolbar
        android:id="@+id/app_bar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <SearchView
            android:id="@+id/searchView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:iconifiedByDefault="false"
            android:queryHint="Search"
            android:layout_centerHorizontal="true" />

    </android.support.v7.widget.Toolbar>

</android.support.design.widget.AppBarLayout>

Answer 4

将SearchView与RecyclerView集成

1)在菜单中添加SearchView项

SearchView可以像actionView使用菜单一样 添加

app:useActionClass ="android.support.v7.widget.SearchView".

<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
tools:context="rohksin.com.searchviewdemo.MainActivity">
<item
    android:id="@+id/searchBar"
    app:showAsAction="always"
    app:actionViewClass="android.support.v7.widget.SearchView"
    />
</menu>

2)在Activity中实现SearchView.OnQueryTextListener

SearchView.OnQueryTextListener有两种抽象方法.因此,在实现SearchView文本侦听器之后,您的活动框架现在看起来像这样.

YourActivity extends AppCompatActivity implements SearchView.OnQueryTextListener{

   public boolean onQueryTextSubmit(String query)

   public boolean onQueryTextChange(String newText) 

}

3)设置SerchView Hint文本,监听器等

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.menu_main, menu);

    MenuItem searchItem = menu.findItem(R.id.searchBar);

    SearchView searchView = (SearchView) searchItem.getActionView();
    searchView.setQueryHint("Search People");
    searchView.setOnQueryTextListener(this);
    searchView.setIconified(false);

    return true;
}

4)实现SearchView.OnQueryTextListener

这是您如何实现侦听器的抽象方法.

@Override
public boolean onQueryTextSubmit(String query) {

    // This method can be used when a query is submitted eg. creating search history using SQLite DB

    Toast.makeText(this, "Query Inserted", Toast.LENGTH_SHORT).show();
    return true;
}

@Override
public boolean onQueryTextChange(String newText) {

    adapter.filter(newText);
    return true;
}

5)在RecyclerView适配器中编写过滤方法.

您可以根据自己的要求提出自己的逻辑.下面是示例代码段,显示名称列表,其中包含输入的文本SearchView.

public void filter(String queryText)
{
    list.clear();

    if(queryText.isEmpty())
    {
        list.addAll(copyList);
    }
    else
    {

        for(String name: copyList)
        {
            if(name.toLowerCase().contains(queryText.toLowerCase()))
            {
                list.add(name);
            }
        }

    }

    notifyDataSetChanged();
}

可以找到完整的工作代码示例> HERE
您还可以在此音乐应用程序中使用SQLite数据库查看SearchView上的代码