在Android中单击菜单按钮时无法打开上下文菜单

Question

我的上下文菜单有问题，我必须控制＆＃34; MenuButton＆＃34;不使用＆＃34;上下文操作栏菜单（CAB）＆＃34;当你进行长时间点击并短按显示上下文菜单时。我需要使用＆＃34;上下文操作栏菜单（CAB）＆＃34;来显示上下文菜单。当你点击＆＃34;菜单按钮＆＃34; CAB菜单也可以短按，而不是长按。我需要通过短暂的单击显示上下文菜单。这有可能吗？

MainActivity.java：

       @Override
       protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_internal);

    toolbar = (Toolbar) findViewById(R.id.tool_bar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setTitle("");

    title = (TextView) findViewById(R.id.txt_name_file);
    past = (ImageView) findViewById(R.id.img_paste);
    home = (ImageView) findViewById(R.id.img_home);
    menu_item = (ImageView) findViewById(R.id.img_more);
    list_in = (ListView) findViewById(R.id.list_in);

    past.setVisibility(View.INVISIBLE);

    fileManager = new FileManager();
    arrayList = new ArrayList<>();
    adapter = new InternalAdapter(getApplicationContext(), arrayList);
    list_in.setAdapter(adapter);

    list_in.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int i, long id) {

            if (selectCount > 0) {
                if (actionMode == null) {
                    actionMode = InternalActivity.this.startActionMode(callback);
                    Toast.makeText(getApplicationContext(), "S>0", Toast.LENGTH_SHORT).show();

                }
                toggleselection(i);
                actionMode.setTitle(selectCount + " " + "Selected");

                if (selectCount == 0) {
                    actionMode.finish();
                }
            } else if (selectCount == 0) {
                Toast.makeText(getApplicationContext(), "2", Toast.LENGTH_SHORT).show();

                String S = arrayList.get(i).getPathFile();
                File file = new File(S);
                if (arrayList.get(i).isFile() == false) {
                    pathItem = arrayList.get(i).getPathFile();
                    title.setText(pathItem.substring(pathItem.lastIndexOf("/") + 1));
                    readFile(pathItem);
                } else if (file.canRead()) {
                    Intent intent = FileManager.createIntent(file);
                    if (getPackageManager().queryIntentActivities(intent, 0).size() > 0) {
                        startActivity(intent);
                    } else {
                        Toast.makeText(getApplicationContext(), "Error", Toast.LENGTH_SHORT).show();
                    }
                }

            }
        }
    });

    list_in.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
        @Override
        public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {


            if (actionMode == null) {
                actionMode = InternalActivity.this.startActionMode(callback);
                Toast.makeText(getApplicationContext(), "L", Toast.LENGTH_SHORT).show();

            }
            toggleselection(position);
            actionMode.setTitle(selectCount + " " + "Selected");

            if (selectCount == 0) {
                actionMode.finish();
            }
            return true;
        }
    });

    readFile(FileManager.PATH);
    loadFileItem();
}

ArrayList<FileItem> selectedFile = new ArrayList<>();

private void toggleselection(int position) {
    arrayList.get(position).isSelected = !arrayList.get(position).isSelected;
    if (arrayList.get(position).isSelected) {
        selectedFile.add(arrayList.get(position));
        selectCount++;
    } else {
        selectedFile.add(arrayList.get(position));
        selectCount--;
    }
    adapter.notifyDataSetChanged();

}

private ActionMode.Callback callback = new ActionMode.Callback() {
    @Override
    public boolean onCreateActionMode(ActionMode mode, Menu menu) {
        MenuInflater menuInflater = mode.getMenuInflater();
        menuInflater.inflate(R.menu.internal_context_menu, menu);
        MenuItem mi = menu.getItem(0);
        mi.setTitle(mi.getTitle().toString());
        actionMode = mode;
        selectCount = 0;
        return true;
    }

    @Override
    public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
        return false;
    }

    @Override
    public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
        switch (item.getItemId()) {
            case R.id.i_de:
                mode.finish();
                break;
        }
        return true;
    }

    @Override
    public void onDestroyActionMode(ActionMode mode) {

        if (selectCount > 0) {
            deSelect();
        }
        actionMode = null;
    }
};

private void deSelect() {
    for (int i = 0; i < arrayList.size(); i++) {
        arrayList.get(i).isSelected = false;
    }
    selectCount = 0;
    adapter.notifyDataSetChanged();
}

     @Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
    super.onCreateContextMenu(menu, v, menuInfo);
    MenuInflater menuInflater = getMenuInflater();
    menuInflater.inflate(R.menu.select_file, menu);
}

@Override
public boolean onContextItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case R.id.copy:
            copyFolder(pos);
            break;
        case R.id.delete:
            deleteFolder(pos);
            break;
        case R.id.rename:
            renameFile(pos);
            break;
    }
    return super.onContextItemSelected(item);
}

    public class InternalAdapter extends BaseAdapter {


    ArrayList<FileItem> arrayList;

    Context context;

    ViewHolder viewHolder;

    public InternalAdapter(Context context, ArrayList<FileItem> arrayList) {
        this.context = context;
        this.arrayList = arrayList;
    }

    @Override
    public int getCount() {
        return arrayList.size();
    }

    @Override
    public FileItem getItem(int position) {
        return arrayList.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }


    @Override
    public View getView(final int position, View view, ViewGroup parent) {
        viewHolder = new ViewHolder();
        view = LayoutInflater.from(context).inflate(R.layout.activity_internal_adapter, parent, false);
        viewHolder.imgFolder = (ImageView) view.findViewById(R.id.img_folder);
        viewHolder.txtNameFile = (TextView) view.findViewById(R.id.txt_name_folder);
        viewHolder.txtDate = (TextView) view.findViewById(R.id.txt_date);
        viewHolder.imgCreate = (ImageView) view.findViewById(R.id.img_create);
        viewHolder.view = view.findViewById(R.id.view_internal);
        viewHolder.linearLayout = (LinearLayout) view.findViewById(R.id.lv_image);

        FileItem fileItem = getItem(position);

        if (fileItem.isSelected) {
            viewHolder.view.setAlpha(0.5f);
        } else {
            viewHolder.view.setAlpha(0.0f);
        }

        if (fileItem.isDirectory()) {
            viewHolder.imgFolder.setImageResource(R.drawable.ic_folder_black_24dp);
        } else if (fileItem.isFile()) {
            viewHolder.imgFolder.setImageResource(R.drawable.ic_insert_drive_file_black_24dp);
        }
        viewHolder.txtNameFile.setText(fileItem.getName());
        viewHolder.txtDate.setText(fileItem.getDate());
        viewHolder.imgCreate.setLongClickable(false);
        registerForContextMenu(viewHolder.imgCreate);

        viewHolder.imgCreate.setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                unregisterForContextMenu(v);
                Toast.makeText(getApplicationContext(), "111", Toast.LENGTH_SHORT).show();
                return false;
            }
        });
        viewHolder.imgCreate.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                pos = position;
                openContextMenu(v);
                Toast.makeText(getApplicationContext(), "1", Toast.LENGTH_SHORT).show();
            }
        });
        return view;
    }

    private class ViewHolder {
        ImageView imgFolder;
        TextView txtNameFile;
        TextView txtDate;
        ImageView imgCreate;
        View view;
        LinearLayout linearLayout;
    }
}

}