问题描述
我想,当用户打开/关闭动作条的溢出菜单(三个点),好歹像这样听:
I want to listen when user opens/closes the overflow menu (three dots) of ActionBar, someway like this:
void onOverflowMenu(boolean expanded) {
}
要处理打开的情况下,我已经试过在prepareOptionsMenu()
,但它还是触发时,动作条构造时 invalidateOptionsMenu( )
被调用。这不是我想要的。
To handle open cases, I've tried onPrepareOptionsMenu()
, but it's triggered when ActionBar is constructed or when invalidateOptionsMenu()
is called. This is not what I want.
我能够检测到溢出菜单关闭,如果用户选择 onMenuItemSelected菜单项()
。但我也想,如果用户通过点击它之外,通过pressing返回键关闭溢出菜单,和所有其他情况下,检测到它。
I was able to detect overflow menu is closed if user selects a menu item in onMenuItemSelected()
. But I also want to detect it if user closes overflow menu by tapping outside of it, by pressing back key, and all other cases.
有没有办法来实现呢?
推荐答案
要赶在活动开行动
:
@Override
public boolean onMenuOpened(int featureId, Menu menu) {
...
return super.onMenuOpened(featureId, menu);
}
要赶上封闭的行动,也如果菜单视图外部用户触摸:
To catch closed action, also if user touch outside of Menu view:
@Override
public void onPanelClosed(int featureId, Menu menu) {
...
}
这篇关于ActionBar的溢出菜单打开/关闭监听器的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!