java浮动操作按钮未在bottomsheetfragment折叠状态下显示
我有{
我在布局中尝试了不同的晶圆厂选项,以使其可见,但到目前为止运气不佳
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
xmlns:app="http://schemas.安卓.com/apk/res-auto"
xmlns:tools="http://schemas.安卓.com/tools"
安卓:id="@+id/topBarBottomSheet"
安卓:clipToPadding="true"
安卓:layout_height="match_parent"
安卓:layout_width="match_parent"
>
<FrameLayout
安卓:layout_width="match_parent"
安卓:layout_height="match_parent"
安卓:layout_below="@id/topBarBottomSheet">
<include layout="@layout/progressbar_framelayout" />
<安卓x.recyclerview.widget.RecyclerView
安卓:id="@+id/recycleviewGallery"
安卓:layout_width="match_parent"
安卓:layout_height="match_parent"
安卓:clipToPadding="false"
安卓:paddingTop="@dimen/list_item_spacing_half"
安卓:paddingBottom="@dimen/list_item_spacing_half"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:listitem="@layout/recycler_view_item_3"
tools:spanCount="3"
tools:layoutManager="GridLayoutManager" />
</FrameLayout>
<com.google.安卓.material.floatingactionbutton.FloatingActionButton
安卓:id="@+id/fabBottomSheet"
安卓:layout_width="wrap_content"
安卓:layout_height="wrap_content"
安卓:layout_margin="16dp"
app:backgroundTint="@color/greenElaxer"
app:fabSize="normal"
app:srcCompat="@drawable/ic_check"
安卓:layout_alignParentBottom="true"
安卓:layout_alignParentRight="true"
安卓:layout_alignParentEnd="true"
安卓:overScrollMode="always"
>
</com.google.安卓.material.floatingactionbutton.FloatingActionButton>
</RelativeLayout>
BottomSheetFragment
public class BottomSheet extends BottomSheetDialogFragment {
FloatingActionButton fab;
RecyclerView recyclerView;
// TODO: Customize parameters
public static BottomSheet newInstance() {
/*final Bundle args = new Bundle();
args.putInt(ARG_ITEM_COUNT, itemCount);
fragment.setArguments(args);*/
return new BottomSheet();
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,@Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_bottemsheet_list_dialog, container, false);
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
recyclerView = view.findViewById(R.id.recycleviewGallery);
fab = view.findViewById(R.id.fabBottomSheet);
BottomSheetAdapter bottomSheetAdapter = new BottomSheetAdapter();
GridLayoutManager gridLayoutManager=new GridLayoutManager(getActivity(),2);
recyclerView.setLayoutManager(gridLayoutManager);
recyclerView.setHasFixedSize(true);
recyclerView.setAdapter(bottomSheetAdapter);
}
@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
BottomSheetDialog dialog = (BottomSheetDialog) super.onCreateDialog(savedInstanceState);
dialog.setOnShowListener(new DialogInterface.OnShowListener() {
@Override
public void onShow(DialogInterface dialog) {
//Get the BottomSheetBehavior
BottomSheetDialog d = (BottomSheetDialog) dialog;
FrameLayout bottomSheet = d.findViewById(com.google.安卓.material.R.id.design_bottom_sheet);
if (bottomSheet != null) {
bottomSheet.getLayoutParams().height = ViewGroup.LayoutParams.MATCH_PARENT;
bottomSheetBehavior = BottomSheetBehavior.from(bottomSheet);
bottomSheet.setMinimumHeight(350);
bottomSheetBehavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
@Override
public void onStateChanged(@NonNull View view, int i) {
switch (i){
case BottomSheetBehavior.STATE_COLLAPSED:
Log.d(TAG,"Collapsed");
break;
case BottomSheetBehavior.STATE_DRAGGING:
Log.d(TAG,"Dragging");
break;
case BottomSheetBehavior.STATE_EXPANDED:
Log.d(TAG,"Expanded");
break;
case BottomSheetBehavior.STATE_HALF_EXPANDED:
Log.d(TAG,"Half Expanded");
break;
case BottomSheetBehavior.STATE_HIDDEN:
Log.d(TAG,"Hidden");
dismiss();
break;
case BottomSheetBehavior.STATE_SETTLING:
Log.d(TAG,"Settling");
break;
}
}
@Override
public void onSlide(@NonNull View view, float v) {
}
});
}
}
});
return dialog;
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
final Fragment parent = getParentFragment();
Log.d(TAG,"Parent = "+parent+" Context "+context);
if (parent != null) {
mListener = (Listener) parent;
} else {
mListener = (Listener) context;
}
}
@Override
public void onDetach() {
mListener = null;
super.onDetach();
}
}
每当我折叠底部板材时,fab按钮也会与底部板材一起向下移动。我需要使我的晶圆厂按钮坚持在同一个地方,无论我扩大或折叠底部表。提前谢谢
我需要坚持相同的布局(相对布局)
# 1 楼答案
当您退出某个片段时,无法使该片段中的UI元素保持不变。如果折叠底部工作表,则其所有UI元素都将折叠。你不能在原地不动
您可以编写一个重复的fab,在关闭底层片段的底部之后显示
例如,我在底部工作表中有此代码以退出底部工作表对话框
当您关闭底部表单时,您可以使用以下代码使基础片段中的fab出现或消失
编辑:处理第二个晶圆厂的更好解决方案