使用BottomSheetFragment设置固定的高度和圆角

问题描述

我试图设置一个固定高度，不可扩展的带有圆角的底版布局片段。

我发现了类似的stackoverflow问题，建议设置窥视高度（setPeekHeight（）），并使用下面的xml代码通过setStyle（）方法设置圆角。他们两个都不适合我。 如何设置带有圆角的固定高度的不可扩展或不可拖动的底片？

public class discoverFragment extends BaseBottomSheetDialogFragment implements Observer<discoverviewmodelState>,OndiscoverSelectedListener {

@BindView(R2.id.discover)
LinearLayout ldiscoverLayout;


@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setStyle(STYLE_norMAL,R2.style.CaAppTheme);
}

@Override
public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) {
    lView = inflater.inflate(com.misc.device.R.layout.fragment_discover,container,false);
    ButterKnife.bind(this,lView);


    /* Set the layout gravity to Bottom */
    CoordinatorLayout.LayoutParams layoutParams = new CoordinatorLayout.LayoutParams(ldiscoverLayout.getLayoutParams());
    layoutParams.gravity = Gravity.BottOM;
    ldiscoverLayout.setLayoutParams(layoutParams);
    return lView;
}

@NotNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    lSheet = super.onCreateDialog(savedInstanceState);

    lSheet.setonShowListener(dialogInterface -> {
        BottomSheetDialog d = (BottomSheetDialog) lSheet;
        FrameLayout bottomSheet = d.findViewById(R.id.design_bottom_sheet);
        BottomSheetBehavior.from(bottomSheet).setHideable(false);
        //BottomSheetBehavior.from(bottomSheet).setPeekHeight(this.getResources().getDimensionPixelSize(R.dimen.peek_height));
    });

    return lSheet;
    }
}

fragment_discover.xml：

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout 
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"
    android:background="?attr/layout_po_background_color"
    android:layoutDirection="locale"
    android:orientation="vertical">

    <LinearLayout
        android:id="@+id/discover"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <TextView
            android:id="@+id/ca"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_marginTop="17dp"
            android:text="@string/ca"
            android:textAlignment="center"
            android:textColor="@color/gray_color"
            android:textSize="@dimen/size_12"
            android:visibility="gone"
            android:textStyle="bold" />

        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/discovered"
            android:layout_width="match_parent"
            android:layout_height="145dp"
            android:layout_marginTop="@dimen/margin"
            tools:listitem="@layout/item_discovered" />

        <ProgressBar
            android:id="@+id/progress"
            style="?android:attr/progressBarStyleSmall"
            android:layout_width="@dimen/progress_bar"
            android:layout_height="@dimen/progress_bar"
            android:layout_gravity="center"
            android:layout_marginTop="@dimen/margin"
            android:indeterminate="true"
            android:progressBackgroundTint="#606067"
            android:progresstint="#8e8e93" />

        <TextView
            android:id="@+id/state_message"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_marginTop="17dp"
            android:gravity="center"
            android:paddingStart="@dimen/margin"
            android:paddingEnd="@dimen/margin"
            android:text="@string/progress_message"
            android:textColor="@color/black_color"
            android:textSize="@dimen/ca_size"
            android:visibility="visible" />

        <androidx.appcompat.widget.AppCompatButton
            android:id="@+id/error_action"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_marginTop="12dp"
            android:layout_marginBottom="100dp"
            android:background="@color/action_background"
            android:padding="@dimen/action_size"
            android:textColor="@color/white"
            tools:text="@string/expo_turn_bluetooth_on_label" />

    </LinearLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>

styles.xml：

<?xml version="1.0" encoding="utf-8"?>
<resources>
   <style name="CaAppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="bottomSheetDialogTheme">@style/DialogTheme</item>
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowIsFloating">true</item>
    </style>

    <style name="DialogTheme"
        parent="Theme.Design.Light.BottomSheetDialog">
        <item name="bottomSheetStyle">@style/ModalStyle</item>
        <item name="android:background">@android:color/transparent</item>
        <item name="android:backgroundDimEnabled">true</item>
    </style>

    <style name="ModalStyle"
        parent="Widget.Design.BottomSheet.Modal">
        <item name="android:background">@drawable/ca_round_corners</item>
        <item name="behavior_peekHeight">50dp</item>
    </style>

</resources>

ca_round_corners.xml：

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <corners
        android:topLefTradius="24dp"
        android:topRighTradius="24dp"/>
    <solid android:color="@color/white"/>
</shape>

解决方法

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