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Rails migrations: Undo default setting for a column
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This is not true anymore as of Rails 3.1.0, cfr. apidock.com/rails/v3.1.0/ActiveRecord/ConnectionAdapters/…
– asymmetric
Jun 25 '13 at 12:28
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android pick images from gallery
...he image gallery Activity:
public static final int PICK_IMAGE = 1;
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (requestCode == PICK_IMAGE) {
//TODO: action
}
}
That's how I call the image gallery. Put it in and see if it works for you...
Add custom headers to WebView resource requests - android
...subsequent requests do not contain the headers. I have looked at all overrides in WebViewClient , but nothing allows for adding headers to resource requests - onLoadResource(WebView view, String url) . Any help would be wonderful.
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Generate a UUID on iOS from Swift
In my iOS Swift app I want to generate random UUID ( GUID ) strings for use as a table key, and this snippet appears to work:
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Font scaling based on width of container
... relative to the size of the initial containing block. When the height or width of the initial containing block is changed, they are scaled accordingly. However, when the value of overflow on the root element is auto, any scroll bars are assumed not to exist.
The values are:
vw (% of the viewpor...
Is AsyncTask really conceptually flawed or am I just missing something?
...ity activity) {
mActivity = activity;
}
@Override
protected Long doInBackground(URL... urls) {
int count = urls.length;
long totalSize = 0;
for (int i = 0; i < count; i++) {
totalSize += Downloader.downloadFi...
What is the difference between object keys with quotes and without quotes?
... difference (unless, as you noted, you want to use a key that’s not a valid JavaScript identifier).
As a side note, the JSON data exchange format does require double quotes around identifiers (and does not allow single quotes).
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Calculating how many minutes there are between two times
I have a datagridview in my application which holds start and finish times. I want to calculate the number of minutes between these two times. So far I have got:
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In Sublime Text 2, how do I open new files in a new tab?
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People don't forget the comma at the end. And put it inside curly braces if you have nothing inside your config file yet.
– Rudolf Real
Apr 29 '14 at 19:32
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DESTDIR and PREFIX of make
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In case the ./configure file is not provided, one can still install to user-specific directory using: make prefix=/path/to/your/lib/libaio install
– Good Will
Dec 30 '18 at 22:24
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