问题
I'm trying to use a coordinator layout with an appbar layout that hosts a fragment as the "scrolling view". The fragment consists of a recyclerView and a bottom aligned layout holding a button, like so:
However, the bottom section is hidden by default:
and only shows up after I scroll.
From my activity class:
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TestFragment fragment = (TestFragment) getFragmentManager().findFragmentByTag("Test");
if (fragment == null)
fragment = new TestFragment();
getFragmentManager().popBackStack();
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.fragment_container, fragment, "Test");
fragmentTransaction.commit();
}
Activity layout:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.CoordinatorLayout
android:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<FrameLayout
android:id="@+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_scrollFlags="enterAlways|scroll"
app:tabGravity="fill"
app:tabMode="fixed"/>
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
</RelativeLayout>
Fragment layout:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@+id/bottomView"
android:scrollbars="vertical"
android:visibility="visible"/>
<RelativeLayout
android:id="@+id/bottomView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#d4285d"
app:layout_scrollFlags="enterAlways">
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Do something..."
android:textSize="14sp"/>
</RelativeLayout>
</RelativeLayout>
The end goal here is for the fragment to have the bottom bar always on screen, and the recycler view scrolling the appbar away.
Is this possible?
Thanks all!
回答1:
It seems this is impossible to do at the moment (forever?).
https://code.google.com/p/android/issues/detail?id=177195
来源:https://stackoverflow.com/questions/31709100/how-to-use-coordinator-layout-with-fragment-as-scrolling-view