I am trying to do an if-else statement for my CGPoints how would I be able to do that, I tried this code...
if (point1 != point2)
{
//statement
}
I m
<编码> 双亲表达的无效歌剧......
感谢!
I am trying to do an if-else statement for my CGPoints how would I be able to do that, I tried this code...
if (point1 != point2)
{
//statement
}
I m
<编码> 双亲表达的无效歌剧......
感谢!
转而使用<代码>CGPointEqual ToPoint。
if (!CGPointEqualToPoint(p1,p2))
{
//statement
}
您可以:
if (!CGPointEqualToPoint(point1, point2)) {
....
}
浮标(因此,CGFloats)是一种微滴滴滴滴,因为有时你希望这些浮体被视为平等,但会把微粒重新.。 如果你想进行“fu”比较,你可以做这样的事:
if (fabsf(point1.x - point2.x) > 0.0001f || fabsf(point1.y - point2.y) > 0.0001f) {
...
}
这种检查可以发现,点1和点2的x &、及部件的差别大于0.0001(完全任意的编号,可以是你希望的准确度)。
我将建议使用以下职能:(从Ampap Docs)
www.un.org/Depts/DGACM/index_russian.htm
bool CGPointEqualToPoint (CGPoint point1, CGPoint point2);
参数
要点1: 第一个审查点。
要点2: 第二点审查。
Return Value true if the two specified points are the same; otherwise, false.
http://developer.apple.com/library/mac/#DOCUMENTATION/GraphicsImaging/Reference/CGGeometry/Reference/ Reference.html。 CGGeometry Reference
见CGPointEqual ToPoint:。 两个点是否平等。
bool CGPointEqualToPoint (
CGPoint point1,
CGPoint point2
);
<>12>
<>Return Value
如果两个具体要点相同,否则就是假的。
For a basic app with nonconsumable in-app purchases, has anyone figured out best practices for using SKPaymentQueue s restoreCompletedTransactions? Observations I know it s recommended to always ...
I am trying to list the contents of Ringtones directory in a TableView, however, I am only getting the last file in the directory in ALL cells, instead of file per cell. This is my code: - (...
I have a UITextField that is a subview of a UITableViewCell. When my view loads, I want the text field to become first responder. I have a pointer to the text field in the table cell, so to do this I ...
I ve been working on adding in-app purchases and was able to create and test in-app purchases using Store Kit (yay!). During testing, I exercised my app in a way which caused the app to crash mid ...
In my app i have a bunch of data i store in the NSUserdefaults. This information consists of an NSObject (Object1) with NSStrings and NSNumbers and also 2 instances of yet another object (Object2). ...
Basically I m downloading images off of a webserver and then caching them to the disk, but before I do so I want to mask them. I m using the masking code everyone seems to point at which can be found ...
I m using this code to resize an image on the iPhone: CGRect screenRect = CGRectMake(0, 0, 320.0, 480.0); UIGraphicsBeginImageContext(screenRect.size); [value drawInRect:screenRect blendMode:...
Is there a simple way of allowing interaction with a button in a UIView that lies under another UIView - where there are no actual objects from the top UIView on top of the button? For instance, ...