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Why can templates only be implemented in the header file?
...of C++ templates is to avoid having to write nearly identical class MyClass_int, class MyClass_float, etc, but to still be able to end up with compiled code that is mostly as if we had written each version separately. So a template is literally a template; a class template is not a class, it's a rec...
ActionBar text color
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@LOG_TAG Use Widget.AppCompat.Light.ActionBar
– sha
Oct 15 '13 at 9:40
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Drop data frame columns by name
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Nutty. identical(post_time_1, post_time_2) [1] TRUE =D
– Daniel Fletcher
Apr 30 '16 at 2:47
add a comment
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How to get Bitmap from an Uri?
...ActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK)
{
Uri imageUri = data.getData();
Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), imageUri);
}
}
If you need to load very large images, the following code will load i...
How to set cornerRadius for only top-left and top-right corner of a UIView?
...it to your view. In my code below I was rounding the bottom corners of the _backgroundView with a radius of 3 pixels. self is a custom UITableViewCell:
UIBezierPath *maskPath = [UIBezierPath
bezierPathWithRoundedRect:self.backgroundImageView.bounds
byRoundingCorners:(UIRectCornerBottomLeft ...
How can I convert string date to NSDate?
... */
let date = dateFormatter.dateFromString(/* your_date_string */)
For further query, check NSDateFormatter and DateFormatter classes of Foundation framework for Objective-C and Swift, respectively.
Swift 3 and later (Swift 4 included)
let dateFormatter = DateFormatter()...
JavaFX and OpenJDK
...ed application that uses JavaFX(e.g. JavaFX Scene Builder 2.0):
cp <JRE_WITH_JAVAFX_HOME>/lib/ext/jfxrt.jar <JRE_HOME>/lib/ext/
cp <JRE_WITH_JAVAFX_HOME>/lib/javafx.properties <JRE_HOME>/lib/
cp <JRE_WITH_JAVAFX_HOME>/lib/amd64/libprism_* <JRE_HOME>/lib/amd6...
Convert an NSURL to an NSString
...[myURL absoluteString]; But I had met this error and xcode was crashed. -[__NSCFString absoluteString]: unrecognized selector sent to instance 0x791a18e0
– Võ Mai Trinh
Jun 22 '15 at 9:39
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Animate text change in UILabel
...right before changing content
extension UIView {
func fadeTransition(_ duration:CFTimeInterval) {
let animation = CATransition()
animation.timingFunction = CAMediaTimingFunction(name:
CAMediaTimingFunctionName.easeInEaseOut)
animation.type = CATransitionType...
PHP global in functions
...n fn()
{
global $foo; // never ever use that
$a = SOME_CONSTANT // do not use that
$b = Foo::SOME_CONSTANT; // do not use that unless self::
$c = $GLOBALS['foo']; // incl. any other superglobal ($_GET, …)
$d = Foo::bar(); // any static call, in...