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Can't create handler inside thread that has not called Looper.prepare()
...rom within the main thread. You could use a handler, for example.
Look up Communicating with the UI Thread in the documentation. In a nutshell:
// Set this up in the UI thread.
mHandler = new Handler(Looper.getMainLooper()) {
@Override
public void handleMessage(Message message) {
...
How do I check for null values in JavaScript?
...NaN
Please note that if you are specifically checking for numbers it is a common mistake to miss 0 with this method, and num !== 0 is preferred (or num !== -1 or ~num (hacky code that also checks against -1)) for functions that return -1, e.g. indexOf)
...
Intellij IDEA Java classes not auto compiling on save
...we can build automatically the edited sources if we are using the external compiler option. The only thing needed is to check the option "Build project automatically", located under "Compiler" settings:
Also, if you would like to hot deploy, while the application is running or if you are using sp...
Keep overflow div scrolled to bottom unless user scrolls up
...rDivID");
element.scrollTop = element.scrollHeight;
[EDIT], to match the comment...
function updateScroll(){
var element = document.getElementById("yourDivID");
element.scrollTop = element.scrollHeight;
}
whenever content is added, call the function updateScroll(), or set a timer:
//on...
How to tell whether a point is to the right or left side of a line
...blems, you will want to look up Jon Shewchuk's "Fast Robust Predicates for Computational Geometry".
– Stephen Canon
Oct 13 '09 at 15:13
14
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Backbone.js: get current route
... answer following @Vad suggestion. I am not using Backbone anymore but his comment sounds right to me. (The previous answer was: Backbone.history.fragment instead of Backbone.history.getFragment() )
– Robert
Mar 28 '15 at 10:05
...
Android: How to turn screen on and off programmatically?
... how dim it can be; if your device is actually allowing the screen to turn completely off, then it is some peculiarity of the implementation of that device and not a behavior you can count on across devices.
In fact using this in conjunction with FLAG_KEEP_SCREEN_ON means that you will never allow ...
Font Awesome icon inside text input element
...
@allcaps the recommendation to use a fallback font-family for the placeholder works WONDERS!! I didn't think to change the font through a fallback. Can you update your answer to include a fallback font for future users? Thanks!
...
Remove blue border from css custom-styled button in Chrome
...
Doing this is not recommended as it regresses the accessibility of your site; for more info, see this post.
That said, if you insist, this CSS should work:
button:focus {outline:0;}
Check it out or JSFiddle: http://jsfiddle.net/u4pXu/
Or in...
Deleting lines from one file which are in another file
...
This has O(n²) complexity and will start to take hours to complete once the files contain more than a few K lines.
– Arnaud Le Blanc
Jan 24 '11 at 10:59
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