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How to compare two colors for similarity/difference
... / 27.f;
float Xr = 0.964221f; // reference white D50
float Yr = 1.0f;
float Zr = 0.825211f;
// RGB to XYZ
r = R / 255.f; //R 0..1
g = G / 255.f; //G 0..1
b = B / 255.f; //B 0..1
// assuming sRGB (D65)
if (r <= 0.04045)
r = r / 12;
else
...
Imitate Facebook hide/show expanding/contracting Navigation Bar
...oes not work. Also make sure you reset all navigation item's alpha back to 1.0 in viewDidDisappear.
– Legoless
Jan 20 '14 at 12:35
...
Placeholder in UITextView
...self];
self.placeholderTextColor = [UIColor colorWithWhite:0.702f alpha:1.0f];
}
- (void)textChanged:(NSNotification *)notification {
[self setNeedsDisplay];
}
@end
It's a lot simpler than the others, as it doesn't use subviews (or have leaks). Feel free to use it.
Update 11/10/11: It is ...
using facebook sdk in Android studio
...is the method on Facebook docs but it's not working. I have android studio 1.0 and sdk v 3.x.
– Abhishek Balani
Jan 9 '15 at 9:36
1
...
Getting DOM elements by classname
...>
use of getElementsByClass is as simple as:
$dom = new DOMDocument('1.0', 'utf-8');
$dom->loadHTML($html);
$content_node=$dom->getElementById("content_node");
$div_a_class_nodes=getElementsByClass($content_node, 'div', 'a');//will contain the three nodes under "content_node".
...
Adding iOS UITableView HeaderView (not section header)
...borderColor=[UIColor blackColor].CGColor;
headerView.layer.borderWidth=1.0f;
UILabel *headerLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 5,100,20)];
headerLabel.textAlignment = NSTextAlignmentRight;
headerLabel.text = @"LeadCode ";
//headerLabel.textColor=[UIColor whit...
How to add Action Bar from support library into PreferenceActivity?
...
EDIT: In appcompat-v7 22.1.0 Google added the AppCompatDelegate abstract class as a delegate you can use to extend AppCompat's support to any activity.
Use it like this:
...
import android.support.v7.app.ActionBar;
import android.support.v7.app.App...
What's the point of 'meta viewport user-scalable=no' in the Google Maps API
...ollowing <meta> tag:
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
This setting specifies that the map should be displayed full-screen and should not be resizable by the user. Note that the iPhone's Safari browser requires this <meta> tag be included withi...
Measuring execution time of a function in C++
...nd-start)/CLOCKS_PER_SEC;
return 0;
}
Timing precision in seconds is 1.0/CLOCKS_PER_SEC
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setup.py examples?
...tuptools import setup, find_packages
setup(
name="foo",
version="1.0",
packages=find_packages(),
)
More info in docs
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