Java 如果键盘打开，则出现BlurDialogFragmentHelper错误

提前感谢，我花时间试图找到这个问题的解决方案。EtsyBlur我正在使用库来显示FramGetDialog。一切正常，但主要的活动是打开键盘并按按钮打开通道，但它会打开键盘无法工作的视图

 MainActivity{
 description.addTextChangedListener(watcher);


       hide_keyboard(PostActivity.this);
       add.setOnClickListener(new View.OnClickListener() {

           @Override
           public void onClick(View view) {
               description.clearFocus();

               PostFragment fragment = PostFragment.newInstance();
               fragment.show(getSupportFragmentManager(), "dialog");

           }
       });[enter image description here][1]void hide_keyboard(Activity activity) {
       InputMethodManager inputMethodManager = (InputMethodManager) activity.getSystemService(Activity.INPUT_METHOD_SERVICE);
       //Find the currently focused view, so we can grab the correct window token from it.
       View view = activity.getCurrentFocus();
       //If no view currently has focus, create a new one, just so we can grab a window token from it
       if(view == null) {
           view = new View(activity);
       }
       inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0);
       inputMethodManager.toggleSoftInput(0, InputMethodManager.HIDE_IMPLICIT_ONLY);
   }

我的对话片段类

public class PostFragment extends DialogFragment {

private static final int TAKE_PICTURE = 1;

private BlurDialogFragmentHelper mHelper;

public static PostFragment newInstance() {
    PostFragment fragment = new PostFragment();
    return fragment;
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    mHelper = new BlurDialogFragmentHelper(this);
    mHelper.onCreate();
    setStyle(DialogFragment.STYLE_NORMAL, R.style.Theme_Transparent);
}

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

    ImageView gallery = (ImageView) v.findViewById(R.id.galleryButton);
    ImageView camera = (ImageView) v.findViewById(R.id.cameraButton);
    ImageView video = (ImageView) v.findViewById(R.id.videoButton);