@Override
public void onStart() {
super.onStart();
Window window = getDialog().getWindow();
WindowManager.LayoutParams windowParams = window.getAttributes();
windowParams.dimAmount =0.0f;
window.setAttributes(windowParams);
BottomSheetDialog dialog = (BottomSheetDialog) getDialog();
FrameLayout bottomSheet = dialog.getDelegate().findViewById(android.support.design.R.id.design_bottom_sheet);
if (bottomSheet !=null) {
BottomSheetBehavior behavior = BottomSheetBehavior.from(bottomSheet);
// 初始为展开状态
behavior.setState(BottomSheetBehavior.STATE_EXPANDED);
}
}
