Question

您好我想通过工具栏在我的应用中实现搜索功能。目前我在activity_main.xml中添加了SearchView元素，但我不知道如何实现剩余的逻辑。请指导我解决这个问题

<android.support.v7.widget.Toolbar
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="#99CC33"
    android:id="@+id/toolbar"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
    app:title="@string/app_name">
       <SearchView
        android:id="@+id/mySearchView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:iconifiedByDefault="true"
        android:layout_gravity="end"
        android:queryHint="Search by name"/>
</android.support.v7.widget.Toolbar>

我的AndroidManifest.xml是

<application
    android:allowBackup="true"
    android:icon="@drawable/splash_img"
    android:label="Call Logger"
    android:theme="@style/AppTheme" >
    <!-- Splash screen -->
    <activity
        android:name="com.comforters.callLogger.SplashScreen"
        android:label="@string/app_name"
        android:screenOrientation="portrait"
        android:theme="@android:style/Theme.Black.NoTitleBar" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <!-- Main activity -->
    <activity
        android:name="com.comforters.callLogger.MainActivity"
        android:label="Call Logger" >
    </activity>

    <receiver android:name=".PhonecallReceiver" >
        <intent-filter>
            <action android:name="android.intent.action.PHONE_STATE" />
        </intent-filter>
        <intent-filter>
            <action android:name="android.intent.action.NEW_OUTGOING_CALL" />
        </intent-filter>
    </receiver>
</application>

Answer 1

在菜单文件夹中创建一个菜单项，例如/ main / res / menu具有以下内容

<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=".MainActivity">

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

</item>

该菜单应绑定到将处理搜索的活动。在您的活动中有这样的东西

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    inflater.inflate(R.menu.menu_activity_main, menu);
    super.onCreateOptionsMenu(menu, inflater);


    SearchManager searchManager = (SearchManager) getActivity().getSystemService(Context.SEARCH_SERVICE);
    MenuItem searchItem = menu.findItem(R.id.action_search);
    SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchItem);

    searchView.setSearchableInfo(searchManager.getSearchableInfo(context.getComponentName()));
    searchView.setIconifiedByDefault(false);

    SearchView.OnQueryTextListener textChangeListener = new SearchView.OnQueryTextListener()
    {
        @Override
        public boolean onQueryTextChange(String query)
        {
            adapter.getFilter().filter(query);
            return true;
        }
        @Override
        public boolean onQueryTextSubmit(String query)
        {
            adapter.getFilter().filter(query);
            return true;
        }
    };
    searchView.setOnQueryTextListener(textChangeListener);
}

然后在您的适配器中实现过滤逻辑，这取决于您搜索的内容以及数据的呈现方式

希望这能指出你正确的方向

在android中的工具栏中实现searchview

1 个答案: