显示没有CoordinatorLayout的Snackbar

Question

我使用CoordinatorLayout显示Snackbar但在某些布局中我没有使用CoordinatorLayout布局,我想显示小吃吧但面临问题.

我尝试了以下方法来实现没有CoordinatorLayout的snackbar,但它会显示以下结果.

Snackbar.make(getActivity().getWindow().getDecorView().getRootView(), "Testing Snackbar", Snackbar.LENGTH_LONG).show();

用android 8.0 Oreo测试它

有没有办法在没有CoordinatorLayout的情况下实现Snackbar？

提前致谢.

码

public class FirstFragment extends Fragment {

RelativeLayout rootView;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_first, container, false);

        Log.e("onCreateView", "onCreateView");

        rootView = (RelativeLayout)view.findViewById(R.id.rootView);
        setSnackBar(rootView, "Testing with answered");
        return view;
    }

public static void setSnackBar(View coordinatorLayout, String snackTitle) {
        Snackbar snackbar = Snackbar.make(coordinatorLayout, snackTitle, Snackbar.LENGTH_SHORT);
        snackbar.show();
        View view = snackbar.getView();
        TextView txtv = (TextView) view.findViewById(android.support.design.R.id.snackbar_text);
        txtv.setGravity(Gravity.CENTER_HORIZONTAL);
    }
}

Answer 1

public static void setSnackBar(View root, String snackTitle) {
  Snackbar snackbar = Snackbar.make(root, snackTitle, Snackbar.LENGTH_SHORT);
  snackbar.show();
  View view = snackbar.getView();
  TextView txtv = (TextView) view.findViewById(android.support.design.R.id.snackbar_text);
  txtv.setGravity(Gravity.CENTER_HORIZONTAL);
}

只要调用上述方法,并通过任何父布局如LinearLayout,RelativeLayout或ScrollView,例如:

setSnackBar(layout,"This is your SnackBar");  //here "layout" is your parentView in a layout

别忘了找到你的观点findViewById().

Answer 2

尝试这个简单的代码..使用Android框架本身的虚拟视图

Snackbar.make(findViewById(android.R.id.content),"Your Text Here",Snackbar.LENGTH_SHORT).show();