如何禁止使用bottomsheetdialogfragment拖动？

myactivity代码如下：

 public class MyActivity extends AppCompatActivity {        @Override
        protected void onCreate(@Nullable Bundle savedInstanceState) {            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_my);            new MyBottomSheetFragment().show(getSupportFragmentManager(), "tag");
        }        public static class MyBottomSheetFragment extends BottomSheetDialogFragment {            @Override
            public Dialog onCreateDialog(Bundle savedInstanceState) {
                BottomSheetDialog bottomSheetDialog = (BottomSheetDialog) super.onCreateDialog(savedInstanceState);
                bottomSheetDialog.setContentView(R.layout.sample);                try {
                    Field mBehaviorField = bottomSheetDialog.getClass().getDeclaredField("mBehavior");
                    mBehaviorField.setAccessible(true);                    final BottomSheetBehavior behavior = (BottomSheetBehavior) mBehaviorField.get(bottomSheetDialog);
                    behavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {                        @Override
                        public void onStateChanged(@NonNull View bottomSheet, int newState) {                            if (newState == BottomSheetBehavior.STATE_DRAGGING) {
                                behavior.setState(BottomSheetBehavior.STATE_EXPANDED);
                            }
                        }                        @Override
                        public void onSlide(@NonNull View bottomSheet, float slideOffset) {
                        }
                    });
                } catch (NoSuchFieldException e) {
                    e.printStackTrace();
                } catch (IllegalAccessException e) {
                    e.printStackTrace();
                }                return bottomSheetDialog;
            }
        }
    }

这个地方的r.layout.sample是一个简单的布局：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <View
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:background="#e479da" />

    <View
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:background="#798de4" />

    <View
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:background="#e4db79" /></LinearLayout>

原文链接：http://www.apkbus.com/blog-919651-76640.html