我相信我可能正在处理一些视图问题,这些问题不允许我检测并将UIImageView
对象添加到数组。我真的可以使用一些建议。将UIImage中的UIImageView对象添加到NSMutableArray
我已经得到了一些UIImageViews
与链接到UIView
上一个UIViewController
顶部位于图像(UIView
加入帮助drawRect
和一些额外的好处)。所以,当我触摸图像并“拖放”它时,我想在丢弃时将该图像添加到数组中。
我touchesBegan
得到触摸和检查UIImageView
被触摸的位置,然后在该视图中心如下:
-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];
CGPoint location = [touch locationInView:self]; //can't use self.view in a UIView, this may be causing issues?
startLocation = location; // for reference as needed
NSLog(@"Image x coord: %f", location.x);
NSLog(@"Image y coord: %f", location.y);
if ([touch view] == obiWan_Block)
{obiWan_Block.center = location;}
else if ([touch view] == r2d2_Block)
{r2d2_Block.center = location;}
else if ([touch view] == you_Block)
{you_Block.center = location;}
}
然后,我拖动UIImageView
周围touchesMoved
最后,“降”的图片与touchesEnded
。当UIImageView
放在屏幕的某个区域时,我会将其“捕捉”到特定位置。在这一点上,我想把这个UIImageView
放入一个数组中,但我没有运气。我相信我对所触及的各种观点以及通过addObject
添加到我的NSMutableArray
的内容感到困惑。或者,我可能完全错过了一些东西。这里是我的touchedEnded
方法:
-(void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];
CGPoint location = [touch locationInView:self];
UIView *temp = [touch view];
UIImageView *currentImageView = (UIImageView *)[touch view]; //DON'T THINK THIS IS RIGHT
NSLog(@"Current Image View is: %@", currentImageView);
if ((location.x > dropZone.origin.x) && (location.y >= dropZone.origin.y) && ([touch view] != NULL))
{
CGRect frame = temp.frame;
if (touchCount == 0) {
frame.origin.x = 15;
frame.origin.y = 180;
temp.frame = frame;
[quoteArray addObject: currentImageView];
touchCount++;
}
else if (touchCount == 1) {
frame.origin.x = 70;
frame.origin.y = 180;
temp.frame = frame;
[quoteArray addObject: currentImageView];
touchCount++;
}
....
我有一个NSLog
语句来检查,如果addObject
工作如下:
NSLog(@"the quote array contains %d items. Contents = %@",[quoteArray count], quoteArray);
日志总是说:
报价数组包含0项。内容=(空)
请指教,谢谢!
谢谢!我确实在错误的地方初始化了我的'NSMutableArray'。总是需要数小时才能解决的简单事情! :-) – jeffjohn01