我创造了一个类似拼字游戏的益智游戏。
这是布局：
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
我的问题是什么？
我的问题是当我从1开始触摸并向12方向触摸时，如果触摸和拖动速度慢，那么没有问题但是当快速拖动时，我只能设置为1,6,12或1,7,12。缺少一个数字。
如何确保选择路径编号？
我正在使用touch began，touch moved和touch ended并使用坐标来确定要触摸的号码。
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
[super touchesBegan:touches withEvent:event];
UITouch *touch = [touches anyObject];
CGPoint currentTouchLocation = [touch locationInView:self.numberview];
if(!ispause && [time.text intValue] > 0){
if(!isbegan && !isended){
for(int i = 1; i <= 16; i++)
{
UIView *imageview = [self.numberview viewWithTag:i];
if (CGRectContainsPoint(imageview.frame, currentTouchLocation))
{
isbegan = YES;
isreverse = NO;
if([[ischose objectAtIndex:i-1] boolValue] == 0)
{
currentposition = imageview.tag;
positionvalue += pow(i, 3);
currentanswer += [self converter:[NSString stringWithFormat:@"%@", [allimagenumbers substringWithRange:NSMakeRange(i-1, 1)]]];
[ischose replaceObjectAtIndex:i-1 withObject:[NSNumber numberWithBool:YES]];
[self changeimage:@"selected"];
}
break;
}
}
}
}
}
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
[super touchesMoved:touches withEvent:event];
UITouch *touch = [touches anyObject];
CGPoint currentTouchLocation = [touch locationInView:self.numberview];
float gapX = image1.frame.size.width / 8;
float gapY = image1.frame.size.height / 8;
if(isbegan && !isended)
{
if(currentTouchLocation.x >= 0 && currentTouchLocation.x <= self.numberview.frame.size.width && currentTouchLocation.y >= 0 && currentTouchLocation.y <= self.numberview.frame.size.height)
{
for(int i = 1; i <= 16; i++)
{
UIView *imageview = [self.numberview viewWithTag:i];
if (CGRectContainsPoint(imageview.frame, currentTouchLocation))
{
if((currentTouchLocation.x >= imageview.frame.origin.x + gapX && currentTouchLocation.x < imageview.frame.origin.x + imageview.frame.size.width - gapX) && (currentTouchLocation.y >= imageview.frame.origin.y + gapY && currentTouchLocation.y < imageview.frame.origin.y + imageview.frame.size.height - gapY ))
{
if([[ischose objectAtIndex:i-1] boolValue] == 0 && !isreverse)
{
currentposition = imageview.tag;
positionvalue += pow(i, 3);
currentanswer += [self converter:[NSString stringWithFormat:@"%@", [allimagenumbers substringWithRange:NSMakeRange(i-1, 1)]]];
[ischose replaceObjectAtIndex:i-1 withObject:[NSNumber numberWithBool:YES]];
[self changeimage:@"selected"];
}
else
{
if(currentposition != imageview.tag)
{
isreverse = YES;
}
else
{
isreverse = NO;
}
}
break;
}
}
}
}
else
{
isended = YES;
isoutofbound = YES;
if(isbegan && isoutofbound)
[self countinganswer];
}
}
}
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
[super touchesEnded:touches withEvent:event];
if(!isoutofbound)
{
isended = YES;
[self countinganswer];
}
else
isoutofbound = NO;
}
-(void)changeimage:(NSString *)status{
if([status isEqualToString:@"default"])
{
for(int i = 1; i <=16;i++)
{
UIImageView *imageview = (UIImageView*)[self.numberview viewWithTag:i];
imageview.image = [UIImage imageNamed:[NSString stringWithFormat:@"stone%@", [allimagenumbers substringWithRange:NSMakeRange(i-1, 1)]]];
[image1 setUserInteractionEnabled:YES];
}
}
else if([status isEqualToString:@"correct"] || [status isEqualToString:@"selected"])
{
for(int i = 1; i<= ischose.count; i++)
{
if([[ischose objectAtIndex:i-1] boolValue] == 1)
{
UIImageView *imageview = (UIImageView*)[self.numberview viewWithTag:i];
imageview.image = [UIImage imageNamed:[NSString stringWithFormat:@"stone%@_correct", [allimagenumbers substringWithRange:NSMakeRange(i-1, 1)]]];
}
}
}
else if([status isEqualToString:@"wrong"] || [status isEqualToString:@"repeat"])
{
for(int i = 1; i<= ischose.count; i++)
{
if([[ischose objectAtIndex:i-1] boolValue] == 1)
{
UIImageView *imageview = (UIImageView*)[self.numberview viewWithTag:i];
imageview.image = [UIImage imageNamed:[NSString stringWithFormat:@"stone%@_wrong_repeat", [allimagenumbers substringWithRange:NSMakeRange(i-1, 1)]]];
}
}
}
}
答案 0 :(得分：0)
<强>更新
与您聊天，您似乎已经解决了问题（未检测到某个UIImageView对象的滑动）。看起来该解决方案是与您的代码相关联的唯一问题（即，在Stack Overflow语言中高度“本地化”），以创建使用gap变量构建的缩小“命中区域”。看起来解决方案与touchesMoved，iOS API或iOS系统性能无关。无论如何，我很高兴你解决了这个问题。
我在下面的原始答案取决于发布的原始源代码，它对16个UIImageView对象中的每一个都重复了相同的逻辑。我只是在演示如何使用UIArray来大大简化逻辑。我也使用UIPanGestureRecognizer，我认为统一代码，并且<UIKit/UIGestureRecognizerSubclass.h>你可以取消手势，以防用户的手势“超出界限”。
原始回答：
我假设您只是想构建一个图像数字数组，因为用户将手指拖过数字。所以ARC代码可能看起来像：
// NumberGameViewController.m
#import "NumberGameViewController.h"
#import <UIKit/UIGestureRecognizerSubclass.h>
@interface NumberGameViewController ()
{
NSArray *images;
NSMutableArray *results;
}
@end
@implementation NumberGameViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// if you build an array of your images, the logic to determine which image you're over is much easier
images = @[self.image1, self.image2, self.image3, self.image4, self.image5, self.image6, self.image7, self.image8, self.image9, self.image10, self.image11, self.image12, self.image13, self.image14, self.image15, self.image16];
// I know you used `touchesMoved` and the like, but I think gesture recognizers are a little easier
UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)];
[self.numberview addGestureRecognizer:pan];
}
- (NSInteger)determineImageNumber:(CGPoint)point
{
for (NSInteger i = 0; i < [images count]; i++)
{
UIImageView *imageview = images[i];
// I'm just going to see if the user's finger was over the number in question.
// If you wanted more restrictive logic (e.g. 3/4ths of the frame), just adjust
// adjust the frame variable here.
CGRect frame = imageview.frame;
if (CGRectContainsPoint(frame, point))
return i;
}
return -1;
}
- (void)handlePan:(UIGestureRecognizer *)gesture
{
CGPoint location = [gesture locationInView:self.numberview];
NSInteger imageNumber = [self determineImageNumber:location];
static NSInteger lastImageNumber;
if (gesture.state == UIGestureRecognizerStateBegan)
{
results = [[NSMutableArray alloc] init];
if (imageNumber >= 0)
{
[results addObject:@(imageNumber)];
}
}
else if (gesture.state == UIGestureRecognizerStateChanged)
{
if (imageNumber >= 0)
{
if (imageNumber != lastImageNumber)
{
// If you want to do some visual adjustment of the image you're over, do it
// here.
// add the image to our array of results
[results addObject:@(imageNumber)];
// if you want to do some additional validation (e.g. do you have 16 points,
// has the user hit the same number twice, etc.), do that here
}
}
// by the way, let's check to see if we're still within the numberview subview, and if
// not, let's cancel the gesture
if (!CGRectContainsPoint(self.numberview.bounds, location))
{
gesture.state = UIGestureRecognizerStateCancelled;
return;
}
}
else if ((gesture.state == UIGestureRecognizerStateEnded) || (gesture.state == UIGestureRecognizerStateCancelled) || (gesture.state == UIGestureRecognizerStateFailed))
{
// At this point you'd do any final validation of the user's response, to see if they
// succeeded or not. I'm just displaying the results in the console
NSLog(@"%@", results);
}
if (imageNumber >= 0)
lastImageNumber = imageNumber;
}
@end
答案 1 :(得分：0)
float gapX = image1.frame.size.width / 8;
float gapY = image1.frame.size.height / 8;
问题是，所有图像中都有间隙，因此快速拖动时它将是图像的外部部分