Makoto Setoh setoh2000

setoh2000 / gist:2354043

Created April 10, 2012 19:57

NSMutableOrderedSetを使って２つの配列(array1, array2)を重複なしに合体させてソートされた配列(array3)を得る方法

	NSMutableOrderedSet *set = [NSMutableOrderedSet orderedSetWithArray:array1];
	[set addObjectsFromArray:array2];

	array3 = [set sortedArrayUsingComparator:^(NSString obj1, NSString obj2) {
	return [obj1 compare:obj2];
	}];

setoh2000 / gist:2340962

Created April 9, 2012 02:38

UITextFieldのカーソルを先頭に移動する方法 (Moving the cursor to the beginning of UITextField)

	UITextPosition *newPos = [textField positionFromPosition:textField.beginningOfDocument offset:0];
	textField.selectedTextRange = [textField textRangeFromPosition:newPos toPosition:newPos];
	[textField setNeedsLayout];

setoh2000 / gist:2286004

Created April 2, 2012 18:18

自分がModalViewControllerとして表示されたかどうかを調べる

	- (BOOL)isModal
	{
	return (self == [self.navigationController.viewControllers objectAtIndex:0]);
	}

setoh2000 / gist:1953420

Created March 1, 2012 21:39

UITableViewでスクロール停止時に表示されるセルを予想する iOS5以降

	- (void)scrollViewWillEndDragging:(UIScrollView )scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint )targetContentOffset
	{
	UITableView tableView = (UITableView )scrollView;

	int n = tableView.frame.size.height / _cellHeight;
	if ((int)tableView.frame.size.height % (int)_cellHeight) n++;

	for (int i = 0; i <= n; i++) {
	NSIndexPath indexPath = [tableView indexPathForRowAtPoint:CGPointMake(0, targetContentOffset->y + i _cellHeight)];