我肯定已经阅读了几乎所有与此相关的问题和答案,但仍然无法使其正常工作。以下是该应用外观的草图。
在下面添加代码以给出布局的结构以及我可能做错的地方。
activity_main.xml
<android.support.constraint.ConstraintLayout >
<android.support.design.widget.BottomNavigationView>
</android.support.design.widget.BottomNavigationView>
<FrameLayout>
</FrameLayout>
bottom_nav_fragment.xml
<android.support.design.widget.CoordinatorLayout >
<android.support.design.widget.AppBarLayout
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.v7.widget.Toolbar>
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="@+id/liquor_type_tablayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:tabMode="scrollable">
<android.support.design.widget.TabItem
/>
<android.support.design.widget.TabItem
/>
<android.support.design.widget.TabItem
/>
<android.support.design.widget.TabItem
/>
<android.support.design.widget.TabItem
/>
</android.support.design.widget.TabLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/price_list_viewpager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
对于每个选项卡项目,我都使用了一个通用片段,它将在recyclerView中具有不同的数据。
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context="com.nandu.oru10ml.price_list.CommonPriceFragment">
<android.support.v7.widget.RecyclerView >
</android.support.v7.widget.RecyclerView>
MainActivity.java
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// MenuInflater inflater = getS
Log.d("Activity Options", "inside onCreateOptionsMenu ");
getMenuInflater().inflate(R.menu.search_item, menu);
return true;
}
BottomNavFragment.java
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d("Fragment onCreate", "inside onCreate ");
setHasOptionsMenu(true);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
Log.d("Fragment Options", "inside onCreateOptionsMenu ");
inflater.inflate(R.menu.search_item, menu);
super.onCreateOptionsMenu(menu,inflater);
}
CommonFragment.java
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d("Fragment onCreate", "inside onCreate ");
setHasOptionsMenu(true);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
Log.d("Fragment Options", "inside onCreateOptionsMenu ");
inflater.inflate(R.menu.search_item, menu);
super.onCreateOptionsMenu(menu,inflater);
}
最后是search_item.xml
<?xml version="1.0" encoding="utf-8"?>
<item
android:id="@+id/action_search"
android:title="Search for Brand"
android:icon="@drawable/ic_search_black_24dp"
app:actionViewClass="android.support.v7.widget.SearchView"
app:showAsAction="ifRoom|collapseActionView">
</item>
</menu>
它不起作用的原因也将帮助我理解根本原因。
该SearhView适用于底部导航片段中的2个以及内部所有嵌套片段,以搜索每个片段中存在的Recyclerview。
最佳答案
setSupportActionBar应该将参数用作工具栏。所以你应该做的是在片段调用中((AppCompatActivity) getActivity()).setSupportActionBar(toolbar)
关于android - SearchView未显示在带有嵌套 fragment 的工具栏上,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/51465724/