how to show full layout in BottomSheetDialog with min and max height 350dp in android

Question

My layout_xml code:

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="@dimen/_350sdp"
    android:maxHeight="@dimen/_500sdp"
    android:orientation="vertical"
    android:id="@+id/commentProblemScreenLL">

    <ListView
        android:id="@+id/commentProblemLV"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/commentProblemNotFound"
        android:visibility="gone"
        android:id="@+id/commentProblemNotFoundTV"/>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="@dimen/_40sdp"
        android:background="@drawable/side_nav_bar"
        android:orientation="horizontal"
        android:padding="@dimen/m1dp"
        android:weightSum="1"
        android:layout_alignParentBottom="true">

        <EditText
            android:id="@+id/commentEditTextET"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="0.9"
            android:background="@null"
            android:hint="@string/comment_EditText"
            android:padding="5dip"
            android:textColor="@color/white"
            android:textColorHint="@color/hintcolor" />

        <ImageButton
            android:id="@+id/commentSendTextIB"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="0.1"
            android:layout_alignParentEnd="true"
            android:background="@drawable/side_nav_bar"
            android:paddingBottom="@dimen/_4sdp"
            android:src="@drawable/cm_chat_send"
            android:layout_alignParentRight="true"
            android:paddingRight="@dimen/_10sdp"
            android:layout_marginTop="@dimen/_5sdp"/>

    </RelativeLayout>

    </RelativeLayout>

Java code:-

private void showCommentDailog()
   {
       Log.d(TAG,"showCommentDailog enter()");
       commentDialog = new BottomSheetDialog(getContext());
       View view = ((ProblemsDetailActivity) getActivity()).getLayoutInflater().inflate(R.layout.commentproblemscreen, null);
       commentDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
       commentProblemLV = (ListView)view.findViewById(R.id.commentProblemLV);
       TextView commentProblemNotFoundTV = (TextView)view.findViewById(R.id.commentProblemNotFoundTV);
       EditText commentEditTextET = (EditText) view.findViewById(R.id.commentEditTextET);
       ImageButton commentSendTextIB = (ImageButton)view.findViewById(R.id.commentSendTextIB);
       if(commentDialog.getWindow() != null) {
           commentDialog.getWindow().setGravity(Gravity.BOTTOM);
       }
       //call the function to show list of previous work
       commentDialog.setContentView(view);
       commentDialog.setCanceledOnTouchOutside(true);
       commentDialog.show();
       final BottomSheetBehavior bottomSheetBehavior = BottomSheetBehavior.from((View) view.getParent());


       bottomSheetBehavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
           @Override
           public void onStateChanged(@NonNull View bottomSheet, int newState) {
               if (newState == BottomSheetBehavior.STATE_HIDDEN) {
                   commentDialog.dismiss();
               }else{
                   if (newState != BottomSheetBehavior.STATE_EXPANDED) {
                       if(commentProblemLV != null && !listIsAtTop()){
                           bottomSheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);
                       }
                   }
               }
           }

           @Override
           public void onSlide(@NonNull View bottomSheet, float slideOffset) {

           }

       });
   }

This code does not show the full layout in bottomsheetDailog. Please correct my code as it shows the full layout in bottomsheetDialog. I want to open full layout in half screen with BottomSheetDialog. here I should be given my java code also for bottomSheetDialog. bottomsheetdailog will apear on clickof comment ImageView.