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Android: how to check if a View inside of ScrollView is visible?
...it is always returning false. Please let me know
– KK_07k11A0585
Jun 15 '15 at 14:57
2
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Java Serializable Object to Byte Array
... answered May 15 '18 at 7:06
gzg_55gzg_55
4122 bronze badges
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How do I scale a stubborn SVG embedded with the tag?
...be replacing the width and height in this:
<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
width="481.89px" height="294.843px" viewBox="0 0 481.89 294.843"
enable-background="new 0 0 481.89 294.843"
xml:space="preserv...
What does T&& (double ampersand) mean in C++11?
...his factory function:
template <typename T, typename A1>
std::unique_ptr<T> factory(A1& a1)
{
return std::unique_ptr<T>(new T(a1));
}
If we called factory<foo>(5), the argument will be deduced to be int&, which will not bind to a literal 5, even if foo's constr...
Two-dimensional array in Swift
...ass]] = []
for i in 0...23 {
matrix.append( [] )
for _ in 0...79 {
matrix[i].append( MyClass() )
}
}
return matrix
}
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How do I force a UITextView to scroll to the top every time I change the text?
...this line in your UITextFielDelegate method. ` func textViewDidEndEditing(_ textView: UITextView) { textView.scrollRangeToVisible(NSRange(location: 0, length: 0)) } `
– lifewithelliott
Mar 15 '17 at 6:11
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Add up a column of numbers at the Unix shell
...filenames. here is a perl one-liner instead.
perl -nle 'chomp; $x+=(stat($_))[7]; END{print $x}' files.txt
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How do I add indices to MySQL tables?
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ALTER TABLE `table` ADD INDEX `product_id_index` (`product_id`)
Never compare integer to strings in MySQL. If id is int, remove the quotes.
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UICollectionView's cellForItemAtIndexPath is not being called
... is the answer solved my problem! The override method func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize { <#code#> } does not work for me.
– Mike
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How Do I Take a Screen Shot of a UIView?
...a category method on UIView to get the view as an UIImage:
- (UIImage *)pb_takeSnapshot {
UIGraphicsBeginImageContextWithOptions(self.bounds.size, NO, [UIScreen mainScreen].scale);
[self drawViewHierarchyInRect:self.bounds afterScreenUpdates:YES];
// old style [self.layer renderInCont...