问题
I noticed a couple days ago that inputting text in my SearchView doesn't show up. Maybe this problem started longer ago and I hadn't noticed it, but I know that everything was working well when I first set up search functionality.
Here is a screenshot (I have already entered text, and you can see that it is not showing):
I have already tried to change the colour of the text on the SearchView, with this SO question, and I've also tried changing the text colour in my searchable configuration XML file. After I found that none of these work, I undid my changes so that you can see the code I currently have below:
MainActivity.java
@Override
public boolean onCreateOptionsMenu(Menu) {
...
// Associate searchable configuration with the SearchView
SearchManager searchManager = (SearchManager) getSystemService(SEARCH_SERVICE);
MenuItem searchMenuItem = menu.findItem(R.id.action_search);
SearchView searchView = (SearchView) searchMenuItem.getActionView();
searchView.setSearchableInfo(searchManager.getSearchableInfo(new ComponentName(this, SearchResultsActivity.class)));
// Note: getSearchableInfo(getComponentName()) will not work on all flavours
// because of a difference in app IDs
}
Note that I've used new ComponentName(...) instead of getSearchableInfo(getComponentName()) since I use different package names in my different flavours.
The activity above is where the SearchView is displayed. The results are shown in another activity.
searchable.xml
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="@string/app_name"
android:hint="@string/search_hint" />
AndroidManifest.xml
...
<activity
android:name=".ui.MainActivity"
android:label="@string/title_activity_main"
android:theme="@style/AppTheme">
<meta-data
android:name="android.app.default_searchable"
android:value=".SearchResultsActivity" />
</activity>
...
<activity
android:name=".ui.filter.SearchResultsActivity"
android:label="@string/title_activity_search_results"
android:parentActivityName=".ui.MainActivity"
android:theme="@style/AppTheme.Search">
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.companyname.appname.ui.MainActivity" />
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data
android:name="android.app.searchable"
android:resource="@xml/searchable" />
</activity>
...
styles.xml (the activity containing the SearchView uses AppTheme.NavDrawer)
...
<style name="Base.AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowNoTitle">true</item>
<item name="windowActionBar">false</item>
<item name="colorButtonNormal">?colorAccent</item>
</style>
<style name="AppTheme" parent="Base.AppTheme">
<item name="colorPrimary">@color/theme_primary</item>
<item name="colorPrimaryDark">@color/theme_primary_dark</item>
<item name="colorAccent">@color/theme_accent</item>
</style>
<style name="AppTheme.NavDrawer">
<item name="android:windowBackground">@color/window_background</item>
</style>
...
v21/styles.xml
<style name="AppTheme.NavDrawer">
<item name="android:windowBackground">@color/window_background</item>
<item name="android:windowDrawsSystemBarBackgrounds">true</item>
<item name="android:statusBarColor">@android:color/transparent</item>
</style>
....
activity_main_filterable.xml (the layout that my activity uses)
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true" >
<include layout="@layout/activity_main_content" />
<include layout="@layout/navdrawer"
android:id="@+id/navigationView" />
<include layout="@layout/filter_drawer"
android:id="@+id/filter_drawer" />
</android.support.v4.widget.DrawerLayout>
activity_main_content.xml
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@+id/adView">
<android.support.design.widget.AppBarLayout
android:fitsSystemWindows="true"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
style="@style/AppTheme.Toolbar"
android:layout_height="wrap_content"
android:layout_width="match_parent"
app:layout_scrollFlags="scroll|enterAlways"/>
<include layout="@layout/blank" /> <!-- This is to prevent bugs -->
</android.support.design.widget.AppBarLayout>
<include layout="@layout/fragment_misc_no_results"
android:id="@+id/fragment_no_results"/>
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView"
style="@style/AppTheme.RecyclerView.StandardList"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
<com.google.android.gms.ads.AdView
android:id="@+id/adView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
ads:adSize="SMART_BANNER"
ads:adUnitId="@string/banner_ad_unit_id" />
</RelativeLayout>
Any ideas on what might be going on or how I should solve it?
回答1:
I had the same issue, and for me it was because I had set my toolbar height to wrap_content. Try giving it a size, like this:
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:theme="@style/ToolbarTheme"
app:popupTheme="@style/AppTheme.PopupOverlay"
app:layout_scrollFlags="scroll|enterAlways"
/>
回答2:
This is the code I use for my recent project and it's work fine:
First define search_menu.xml (make sure use android supportV7) :
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="@+id/search"
android:icon="@drawable/ic_search_gray"
android:title="@string/action_search"
app:actionViewClass="android.support.v7.widget.SearchView"
app:showAsAction="always" />
</menu>
Then define in your onCreateOptionMenu of your Activity:
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_search, menu);
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView = (SearchView) MenuItemCompat.getActionView(menu.findItem(R.id.search));
searchView.setSearchableInfo(searchManager.getSearchableInfo(new ComponentName(getApplicationContext(), SearchActivity.class)));
searchView.setMaxWidth(Integer.MAX_VALUE);
MenuItemCompat.expandActionView(menu.findItem(R.id.search));
searchView.setIconifiedByDefault(true);
searchView.setIconified(false);
Also my Toolbar:
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/gray_lightest"
android:minHeight="?attr/actionBarSize"
android:theme="@style/ThemeOverlay.AppCompat.ActionBar"
app:contentInsetStartWithNavigation="0dp" />
Add meta-data to your AndroidManifest.xml:
<activity
android:name=".ui.activity.SearchActivity"
android:launchMode="singleTop">
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data
android:name="android.app.searchable"
android:resource="@xml/searchable"
android:value=".ui.activity.SearchActivity" />
</activity>
Final result:
来源：https://stackoverflow.com/questions/38575061/text-input-in-searchview-doesnt-show