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Save image from URL by paperclip
...self.picture = open(url)
end
end
Then simply :
user.picture_from_url "http://www.google.com/images/logos/ps_logo2.png"
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Chrome's remote debugging (USB debugging) not working for Samsung Galaxy S3 running android 4.3
...ridge". Go straight to #3 - #7 after download and execute "platform-tools"(https://developer.android.com/studio/releases/platform-tools.html)
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f...
How is the “greater than” or “>” character used in CSS?
...ir with a,
as shown below:
div.resources > a{color: white;}
(from http://www.xml.com/pub/a/2003/06/18/css3-selectors.html)
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wait() or sleep() function in jquery?
...
That'd be .delay().
http://api.jquery.com/delay/
If you are doing AJAX stuff tho, you really shouldn't just auto write "done" you should really wait for a response and see if it's actually done.
...
Android Task Affinity Explanation
...ty in random places, they are all one.
Slideshow with more explanation:
http://www.slideshare.net/RanNachmany/manipulating-android-tasks-and-back-stack
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Chrome desktop notification example [closed]
...n HTML file on your site/application, and make sure to use localhost:// or HTTPS.
// request permission on page load
document.addEventListener('DOMContentLoaded', function() {
if (!Notification) {
alert('Desktop notifications not available in your browser. Try Chromium.');
return;
}
...
How to change a Git remote on Heroku
...
View Remote URLs
> git remote -v
heroku https://git.heroku.com/###########.git (fetch) < your Heroku Remote URL
heroku https://git.heroku.com/############.git (push)
origin https://github.com/#######/#####.git (fetch) < if you use GitHub then this i...
what’s the difference between Expires and Cache-Control headers?
...
Cache-Control was introduced in HTTP/1.1 and offers more options than Expires. They can be used to accomplish the same thing but the data value for Expires is an HTTP date whereas Cache-Control max-age lets you specify a relative amount of time so you coul...
How should I validate an e-mail address?
...PI 8 (android 2.2) there is a pattern: android.util.Patterns.EMAIL_ADDRESS
http://developer.android.com/reference/android/util/Patterns.html
So you can use it to validate yourEmailString:
private boolean isValidEmail(String email) {
Pattern pattern = Patterns.EMAIL_ADDRESS;
return pattern....
How do you dynamically add elements to a ListView on Android?
...ml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<Button
android:id="@+id/addBtn"
androi...