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How do I hide a menu item in the actionbar?
...Item pointing to such item, call setVisible on it to adjust its visibility and then call invalidateOptionsMenu() on your activity so the ActionBar menu is adjusted accordingly.
Update: A MenuItem is not a regular view that's part of your layout. Its something special, completely different. Your cod...
In which order do CSS stylesheets override?
... more general ones. Specificity is defined based on how many IDs, classes, and element names are involved, as well as whether the !important declaration was used. When multiple rules of the same "specificity level" exist, whichever one appears last wins.
...
JPA: How to have one-to-many relation of the same Entity type
...
Yes, this is possible. This is a special case of the standard bidirectional @ManyToOne/@OneToMany relationship. It is special because the entity on each end of the relationship is the same. The general case is detailed in Section 2.10.2 of the JPA 2.0 spec.
Here's a worked exa...
How can I get browser to prompt to save password?
...ound a complete solution for this question. (I've tested this in Chrome 27 and Firefox 21).
There are two things to know:
Trigger 'Save password', and
Restore the saved username/password
1. Trigger 'Save password':
For Firefox 21, 'Save password' is triggered when it detects that there is a ...
std::function vs template
... in cases with binding, there's a chunk of code which does the adaptation, selected by a code ptr in the function obj, and which picks up data (bound parms) from the function obj (d) the 'bound' function may be inlined into that adaptor, if the compiler can see it.
– greggo
...
Why this line xmlns:android=“http://schemas.android.com/apk/res/android” must be the first in the la
...n XML, xmlns declares a Namespace. In fact, when you do:
<LinearLayout android:id>
</LinearLayout>
Instead of calling android:id, the xml will use http://schemas.android.com/apk/res/android:id to be unique. Generally this page doesn't exist (it's a URI, not a URL), but sometimes it is...
How can I embed a YouTube video on GitHub wiki pages?
...o markup (though it's extremely easy to pickup). I am working on a package and am trying to get the wiki pages looking nice as a help manual. I can insert a YouTube video link into the wiki page pretty easily but how do I embed a YouTube video. I know this may not be possible.
...
Bootstrap 3 Collapse show state with Chevron icon
...umenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable...
How can I do width = 100% - 100px in CSS?
... for example it was displaying as calc(94%), I had to escape it as follows and now it works width: calc(~"100% - 6px");
– nsilva
Apr 19 '16 at 12:53
14
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How to get the focused element with jQuery?
...g to search the whole DOM tree.
The answer is:
document.activeElement
And if you want a jQuery object wrapping the element:
$(document.activeElement)
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