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How to set default values in Rails?
...use the same default to be set in any model using it in any standard Rails app.
However, if you only want default values set in specific cases -- say, it's an inherited model that shares a table with some others -- then another elegant way is do it directly in your Rails code when the model object ...
How do I ZIP a file in C#, using no 3rd-party APIs?
.... We use a file extension to associate the download file with our desktop app. One small problem we ran into was that its not possible to just use a third-party tool like 7-zip to create the zip files because the client side code can't open it -- ZipPackage adds a hidden file describing the conten...
When to use an assertion and when to use an exception
...e an exception to check for a condition in my code, I wonder when it is an appropriate time to use an assertion?
11 Answers...
How to use NSURLConnection to connect with SSL for an untrusted cert?
... open source (BSD license) library called ASIHTTPRequest that provides a wrapper around the lower-level CFNetwork APIs. They recently introduced the ability to allow HTTPS connections using self-signed or untrusted certificates with the -setValidatesSecureCertificate: API. If you don't want to pull ...
How do I add a Fragment to an Activity with a programmatically created content view
..., and that view must have a custom id. Using the default id will crash the app. Here's the updated code:
public class DebugExampleTwo extends Activity {
private static final int CONTENT_VIEW_ID = 10101010;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.on...
Simulate low network connectivity for Android [closed]
I would like to test my application for cases of low network connectivity. Except standing in the elevator, what is the best way to do this? I've tried wrapping my phone in an aluminum foil, but it didn't help much.
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How to dynamically update a ListView on Android [closed]
...item_1,
getStringArrayList());
}
Running the app now should show your previous ListView, with a nice box above. In order to make that box do something, we need to take the input from it, and make that input filter the list. While a lot of people have tried to do this ma...
Using a custom image for a UITableViewCell's accessoryView and having it respond to UITableViewDeleg
...g the same for the cell's accessoryView . My setup for the accessoryView happens by the way of something like this:
10 Ans...
Textarea onchange detection
...
This is the best approach. I don't like the inferences here (browser support for addEventListener does not imply support for the input event, or vice versa); feature detection would be better. See this blog post for a discussion of this.
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How to get current timestamp in milliseconds since 1970 just the way Java gets
...the bottom of this page, and slightly modified it to be a complete console app. I love using this lil' ol' thing. It's fantastic if you do a lot of scripting and need a reliable tool in Windows to get the epoch in actual milliseconds without resorting to using VB, or some less modern, less reader-fr...