这里我想在点击'<'时隐藏搜索+按钮按钮如下图所示 点击它时如何采取行动是否有@override方法?
这是我的代码:
private MenuItem item2;
item2 = menu1.getItem(0); // get position of item
item2.setOnActionExpandListener(new OnActionExpandListener() { // perform on click action here
@Override
public boolean onMenuItemActionExpand(MenuItem item) {
// TODO Auto-generated method stub
item2 = menu1.getItem(2).setVisible(false); // hide button
item2 = menu1.getItem(1).setVisible(true); // enable button
return true;
}
@Override
public boolean onMenuItemActionCollapse(MenuItem item) {
// TODO Auto-generated method stub
item2 = menu1.getItem(1).setVisible(false); // hide button
item2 = menu1.getItem(2).setVisible(true); // enable button
return true;
}
});
答案 0 :(得分:1)
我使用此代码解决了它:
@Override
public boolean onOptionsItemSelected(final MenuItem item) {
private MenuItem item2;
if (item.getTitle().equals("Search")) {
item2 = menu1.getItem(0); // get position of item
item2.setOnActionExpandListener(new OnActionExpandListener() { // perform on click action here
@Override
public boolean onMenuItemActionExpand(MenuItem item) {
// TODO Auto-generated method stub
item2 = menu1.getItem(2).setVisible(false); // hide button
item2 = menu1.getItem(1).setVisible(true); // enable button
return true;
}
@Override
public boolean onMenuItemActionCollapse(MenuItem item) {
// TODO Auto-generated method stub
item2 = menu1.getItem(1).setVisible(false); // hide button
item2 = menu1.getItem(2).setVisible(true); // enable button
return true;
}
});
}
}
答案 1 :(得分:0)
我相信这就是你所需要的:
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
// hide your icon
return true;
default:
return super.onOptionsItemSelected(item);
}
}
编辑:假设您正在使用Android的Action Bar实施