Question

下面这个类是我自定义的对话框来显示和隐藏对话框，在这个类中我重写了onDismiss DialogFragment以隐藏对话框，但是在实现中无法监听的简单片段中，例如这是我的自定义对话框：

public class RobotDialog extends DialogFragment {

    @Bind(R.id.robot_dialog_icon)
    ImageView robot_dialog_icon;

    @Bind(R.id.frame)
    RelativeLayout frame;

    public RobotDialog() {
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        getDialog().getWindow().setBackgroundDrawable(new ColorDrawable(0));
        View view = inflater.inflate(R.layout.fragment_robot_dialog, container, false);
        ButterKnife.bind(this, view);
        return view;
    }

    @Override
    public void onStart() {
        super.onStart();
        Window                     window       = getDialog().getWindow();
        WindowManager.LayoutParams windowParams = window.getAttributes();
        windowParams.dimAmount = 0.0f;
        window.setAttributes(windowParams);
    }

    @Override
    public void onDismiss(final DialogInterface dialog) {
        super.onDismiss(dialog);
        final Activity activity = getActivity();
        if (activity != null && activity instanceof DialogInterface.OnDismissListener) {
            ((DialogInterface.OnDismissListener) activity).onDismiss(dialog);
        }
    }

    @Override
    public void onActivityCreated(Bundle arg0) {
        super.onActivityCreated(arg0);
        getDialog().getWindow()
                .getAttributes().windowAnimations = R.style.DialogAnimation;
    }
}

这是我要展示的简单片段，必须听取onDismiss关闭对话框：

public class FragmentRobotAssisstant extends Fragment implements DialogInterface.OnDismissListener {

    private TextView icon_arrow_right;
    private TextView activity_robot_title;
    private TextView icon_send_message_to_robot;

    private EditText user_chat_with_robot;

    private List<Message> mMessages = new ArrayList<Message>();

    private RecyclerView         mMessagesView;
    private RecyclerView.Adapter mAdapter;

    private       CircularRevealView  revealView;
    private       android.os.Handler  handler;
    private       RobotDialog         robotDialog;
    private       TextView            icon_show_robot_helper;
    private       Context             context;
    private       int                 backgroundColor;
    public static OnCloseSlidingLayer onCloseSlidingLayer;

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

        context = getActivity().getBaseContext();

        //@formatter:off
        activity_robot_title        = (TextView)           view.findViewById(R.id.activity_market_robot_title);
        icon_send_message_to_robot  = (TextView)           view.findViewById(R.id.icon_send_message_to_robot);
        icon_arrow_right            = (TextView)           view.findViewById(R.id.icon_arrow_right);
        icon_show_robot_helper      = (TextView)           view.findViewById(R.id.icon_show_robot_helper);
        user_chat_with_robot        = (EditText)           view.findViewById(R.id.user_chat_with_robot);
        mMessagesView               = (RecyclerView)       view.findViewById(R.id.messages);
        revealView                  = (CircularRevealView) view.findViewById(R.id.reveal);
        //@formatter:on

        ...

        return view;
    }

    @Override
    public void onDismiss(final DialogInterface dialog) {
        Log.e("DISMISS", "  CLICKED");
    }

    public interface OnCloseSlidingLayer {
        void onClose();
    }

    public static void setOnCloseSlidingLayer(OnCloseSlidingLayer l) {
        onCloseSlidingLayer = l;
    }
}

来自片段的

onDismiss可以在任何活动上正常工作，但它对此片段无效

Answer 1

以Jace的评论为基础，在RobotoDialog中：

 @Override
 public void onDismiss(final DialogInterface dialog) {
     final Fragment parent = getParentFragment();
     if (parent != null && parent instanceof DialogInterface.OnDismissListener) {              
         ((DialogInterface.OnDismissListener) parent).onDismiss(dialog);
     }
     super.onDismiss(dialog);
 }

Android侦听器onDismiss不适用于Fragments

1 个答案: