我在Swift中有这个代码并且它可以工作,但我认为有更好的方法从NSNumber获取我的对象并将其转换为Double:
var rating: NSNumber
var ratingDouble: Double
rating = self.prodResult?.prodsInfo.prodList[indexPath.row].avgRating as NSNumber!!
ratingDouble = Double(rating.doubleValue)
Run Code Online (Sandbox Code Playgroud) 我正在尝试使用Allman Style获得可与Swift配合使用的UncrustifyX配置.我在Xcode中使用BBUncrustifyPlugin.这是我到目前为止所拥有的:
# indent using tabs
input_tab_size = 8
output_tab_size = 4
indent_columns = output_tab_size
indent_with_tabs = 1
# indent case
indent_switch_case = indent_columns
indent_case_brace = 0
# indent class body
indent_class = True
# newlines
nl_after_semicolon = true
# spaces
# add in general
sp_before_sparen = add
# but remove for
sp_version_paren = remove
sp_catch_paren = remove
sp_scope_paren = remove
sp_func_call_user_paren = remove
# Allman style for curly braces
nl_assign_brace = add
nl_enum_brace = add
nl_union_brace = add
nl_struct_brace …Run Code Online (Sandbox Code Playgroud) 我有以下代码:
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
NSUInteger touchCount = 0;
// Enumerates through all touch objects
for (UITouch *touchb in touches){
touchCount++;
}
// When multiple touches, report the number of touches.
if (touchCount > 1) {
lblStatustouch.text = [NSString stringWithFormat:@"Tracking %d touches", touchCount];
} else {
lblStatustouch.text = [NSString stringWithFormat:@"Tracking 1 touch", touchCount];
}
Run Code Online (Sandbox Code Playgroud)
当我运行它时,它永远不会检测到多个触摸.是否有一些设置可能会阻止我的应用进行多次触摸?或者我在这里遗漏了什么?
我正在尝试数学来设置形状节点的位置.它看起来像这样(Swift):
var score: NSNumber?
score = score! + 1
xcode 6 beta 5运行完美,但xocde 6.1没有运行,报告'NSnumer'无法转换为'Int'