[英]Toolbar icons disappearing after expanding the SearchView in Android
[英]Android - SearchView in toolbar not expanding
我正在尝试在我的工具栏中添加SearchView,我添加了图标,但是当我按下它时,它不会扩展。
这是代码:
main_menu.xml
<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="com.app.try.MainActivity">
<item
android:id="@+id/search"
android:title="@string/search"
android:icon="@drawable/abc_ic_search_api_mtrl_alpha"
app:showAsAction="always"
android:actionViewClass="android.support.v7.widget.SearchView"/>
</menu>
MainActivity.java
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater=getMenuInflater();
inflater.inflate(R.menu.menu_main,menu);
MenuItem searchItem = menu.findItem(R.id.search);
SearchManager searchManager= (SearchManager)getSystemService(Context.SEARCH_SERVICE);
SearchView searchView=null;
if (searchItem!=null) {
Log.d("createOptionMenu","search item not null");
searchView = (SearchView) searchItem.getActionView();
}
if (searchView!=null) {
Log.d("createOptionMenu","search view not null");
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
}else{
Log.e("createOptionMenu","search view null");
}
return true;
}
(这总是显示日志消息“search view null”)
AndroidManifest.xml中
...
<activity
android:name=".MainActivity"
android:configChanges="orientation|keyboardHidden"
android:label="@string/app_name"
android:screenOrientation="portrait" >
<meta-data
android:name="android.app.searchable"
android:resource="@xml/searchable" />
</activity>
<activity
android:name=".SearchResultActivity"
android:label="@string/title_activity_search_result" >
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
...
searchable.xml
<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="@string/app_name"
android:hint="HINTTT" />
我已尝试使用expandActionView()
或setIconified(false)
多个选项,但这些选项setIconified(false)
用于我。
你应该使用MenuItemCompat
mSearchView = (SearchView) MenuItemCompat.getActionView(searchItem);
并用于折叠SearchView使用
MenuItemCompat.collapseActionView(searchItem);
并确保您已将android:actionViewClass
更改为app:actionViewClass
我有同样的问题。 我只是通过一个小小的调整来解决我的问题。 更改android:actionViewClass="android.support.v7.widget.SearchView"
到app:actionViewClass="android.support.v7.widget.SearchView"
在MainActivity中,您必须扩展ActionbarActivity
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:appcompat="http://schemas.android.com/apk/res-auto"
xmlns:app="http://schemas.android.com/tools">
<item
android:id="@+id/menu_search"
android:title="@string/menu_search"
appcompat:actionViewClass="android.support.v7.widget.SearchView"
appcompat:showAsAction="always"/>
MainActivity.java
public class MainActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
// Inflate menu to add items to action bar if it is present.
inflater.inflate(R.menu.menu_main, menu);
// Associate searchable configuration with the SearchView
SearchManager searchManager =
(SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView =
(SearchView) menu.findItem(R.id.menu_search).getActionView();
searchView.setSearchableInfo(
searchManager.getSearchableInfo(getComponentName()));
return true;
}
}
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