ActionBar SearchView收缩事件

MenuItem s = menu.findItem(R.id.menu_search);
s.setOnActionExpandListener(new MenuItem.OnActionExpandListener() {
@Override
public boolean onMenuItemActionExpand(MenuItem item) {
return false;
}

@Override
public boolean onMenuItemActionCollapse(MenuItem item) {
return false;
}
});
//当使用Support Library时，setOnActionExpandListener()方法是一个静态方法
MenuItemCompat.setOnActionExpandListener(s, new MenuItemCompat.OnActionExpandListener() {
@Override
public boolean onMenuItemActionExpand(MenuItem item) {
return false;
}

@Override
public boolean onMenuItemActionCollapse(MenuItem item) {
startActivity(new Intent(SpeakPostSearchActivity.this,MainActivity.class));
return false;
}
});