如何在菜单项上捕获长按？

我有一个典型的菜单，我想为其中一个项目设置onLongClickListener 。 换句话说，我希望这个项目能够执行正常的onOptionsItemSelected函数，以及长按function。

  MenuItem item; item = menu.findItem(android.R.id.home); item.setOnLongClickListener(new OnLongClickListener() { public boolean onLongClick(View v) { Context context = getApplicationContext(); CharSequence text = "Long Press"; int duration = Toast.LENGTH_SHORT; Toast toast = Toast.makeText(context, text, duration); toast.show(); return true; } }); 

Answer 1

我只需在menuItem上使用setActionView就可以做到这一点。 如果有帮助，您可以按照此程序操作。

  for(int i = 0; i < menu.size(); i++){ View v = new View(this); v.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { //Your longclick listener callback logic goes here return false; } }); menu.getItem(i).setActionView(v); } 

Answer 2

使用Menu上的findItem方法获取视图，并在每个视图上设置长按侦听器。

Answer 3

这种方法不对，它扰乱了整个流程，但在这里你走了：

  private interface OnMenuItemLongClickListener{ boolean onMenuItemLongClik(MenuItem m); } private void getMenuItemsView(Activity a, final Menu m, final OnMenuItemLongClickListener listener) throws NoSuchFieldException, IllegalArgumentException, IllegalAccessException{ View homeButton = a.findViewById(android.R.id.home); ViewParent parentOfHome = homeButton.getParent().getParent(); //ActionBarView is parent of home ImageView, see layout file in sources if (!parentOfHome.getClass().getName().contains("ActionBarView")) { parentOfHome = parentOfHome.getParent(); Class absAbv = parentOfHome.getClass().getSuperclass(); //ActionBarView -> AbsActionBarView class Field actionMenuPresenterField = absAbv.getDeclaredField("mActionMenuPresenter"); actionMenuPresenterField.setAccessible(true); Object actionMenuPresenter = actionMenuPresenterField.get(parentOfHome); Field actionMenuViewField = actionMenuPresenter.getClass().getSuperclass().getDeclaredField("mMenuView"); actionMenuViewField.setAccessible(true); Object actionMenuView = actionMenuViewField.get(actionMenuPresenter); Field childrenField= actionMenuView.getClass().getSuperclass().getSuperclass().getDeclaredField("mChildren"); childrenField.setAccessible(true); Field menuField =actionMenuPresenter.getClass().getSuperclass().getDeclaredField("mMenu"); menuField.setAccessible(true); Object menu = menuField.get(actionMenuPresenter); Object[] menuItemsAsViews = (Object[])childrenField.get(actionMenuView); View.OnLongClickListener longListener = new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { return listener.onMenuItemLongClik(m.findItem(v.getId())); } }; for(Object menuView:menuItemsAsViews ){ View v = (View)menuView; v.setOnLongClickListener(longListener); } } } 

用法：

 @Override public boolean onPrepareOptionsMenu(final Menu menu) { new Handler().postDelayed(new Runnable(){ @Override public void run() { getMenuItemsViews(MainActivity.this, menu); }}, 100); //must be called after the menu views are generated, otherwise NPE. return super.onPrepareOptionsMenu(menu); } 

WILL NOT考虑溢出的MenuItem。