停止的UILabel动画 [英] UILabel stops animations
问题描述
我有5个的UIImageViews 获取动画按住屏幕。如果一个人是pressed，并符合要求，它将增加1到你的分数，使用这个：
self.score.text = @（self.score.text.integerValue + 1）.stringValue;
但是，当在的UILabel 更新文本，所有的动画突然停止，剩下的的UIImageViews 消失。但是，动画只出现图像正在成为隐藏在几秒钟后重新启动。在code动画图像和变化的图像（它们是相同的每一个人）：
- （无效）{squareOneMover
NSUInteger R = arc4random_uniform（3）;
[self.squareOne setHidden：NO];
CGPoint originalPosition = self.squareOne.center;
CGPoint位置= self.squareOne.center;
originalPosition.y = -55;
position.y + = 790;
[self.squareOne setCenter：originalPosition]; [UIView的animateWithDuration：R + 3
延迟：0.0
选项：UIViewAnimationOptionAllowUserInteraction
动画：^ {
[self.squareOne setCenter：位置]。
}
完成：^（BOOL完成）{
如果（完成）{
[个体经营squareOneColour]
[个体经营squareOneMover]
}
}
];
} - （无效）{squareOneColour
NSUInteger R = arc4random_uniform（5）;
[self.squareOne setImage：[self.colorArray objectAtIndex：R]];
}
任何人都有一个解决方案吗？而如果通过改变文本的的UILabel 应该停止动画（我不知道他们为什么会这么做），有人可以提供一种变通方法，以保持成绩的可能。
编辑：我创建了一个按钮，会增加评分的整数值。这意味着我可以更改的UILabel 手动文本。该动画依然停止的那一刻文本改变了。
编辑2：为pressed活动方式：
- （空）的touchesBegan：（*的NSSet）触及withEvent：方法（*的UIEvent）事件
{
UITouch *触摸= [触摸anyObject]
CGPoint touchLocation = [触摸locationInView：self.view]; NSUInteger A = [self.colorArray indexOfObject：self.squareOne.image];
NSUInteger B = [self.iconColorArray indexOfObject：self.icon.image];
如果（[self.squareOne.layer presentationLayer则hitTest：touchLocation]）{
_squareOne.hidden = YES;
}
如果（一个！= b）的{
如果（self.squareOne.hidden == YES）{
的NSLog（@否）;
}
}
如果（A == B）{
如果（[self.squareOne.layer presentationLayer则hitTest：touchLocation]）{
self.score.text = @（self.score.text.integerValue + 1）.stringValue;
}
} 如果（[self.squareTwo.layer presentationLayer则hitTest：touchLocation]）{
_squareTwo.hidden = YES;
}
}
看着马特的答案，我将如何动画的UIImageView 按改变其约束？
约束：
[self.view addConstraints：[NSLayoutConstraint constraintsWithVisualFormat:@\"H:|-25-[btn1]-25-[btn2(==btn1)]-25-[btn3(==btn1)]-25-[btn4(==btn1)]-25-[btn5(==btn1)]-25-|\"选项：0的指标：无观点：观点]];[self.view addConstraint：[NSLayoutConstraint
constraintWithItem：self.squareOne
属性：NSLayoutAttributeTop
relatedBy：NSLayoutRelationEqual
toItem：self.view
属性：NSLayoutAttributeTop
事半功倍：0.0
常数：-55.0]];
//什么都你的，如果的检查？ //我只是好奇，有很多会在这里** //如果这个判断为真
如果（[self.squareOne.layer presentationLayer则hitTest：touchLocation]）{
_squareOne.hidden = YES;
} **
如果（一个！= b）的{
如果（self.squareOne.hidden == YES）{
的NSLog（@否）;
}
}
如果（A == B）{
** //这将评估也如此
如果（[self.squareOne.layer presentationLayer则hitTest：touchLocation]）{
self.score.text = @（self.score.text.integerValue + 1）.stringValue;
} **
}//甚至当我从界面生成器几乎从未发生过的一切加入这个工作正常
更新
＃进口＆LT;的UIKit / UIKit.h＆GT;@interface的ViewController：UIViewController中
@property（强，非原子）的UILabel *标签;
@property INT tapCount;
@结束@implementation的ViewController
- （无效）viewDidLoad中{ UITapGestureRecognizer *自来水= [[UITapGestureRecognizer的alloc]初始化];
[自来水addTarget：自我行动：@选择（userTap :)]。
[self.view addGestureRecognizer：TAP];
}
- （*的UILabel）标签{ 如果（！_label）{
_label = [[的UILabel的alloc]初始化];
_label.text = @龙头：％3I，0;
[_label sizeToFit]
_label.center = self.view.center;
[self.view addSubview：_label];
} 返回_label;
} - （无效）userTap：（UITapGestureRecognizer *）{发件人
的NSLog（@点击）;
self.tapCount ++;
[UIView的animateWithDuration：1
动画：^ {
self.label.text = [的NSString stringWithFormat：@龙头：％I，self.tapCount]
self.label.center = [发送locationInView：self.view]; }
完成：无];}@结束
**刚刚清理code位为今后的围观**
直接复制和粘贴里面只删除ViewController.m一切
在一个新的项目，这在它的地方粘贴
I have 5 UIImageViews getting animated down the screen. If one is pressed, and it meets the requirements, it will add 1 to your score, using this:
self.score.text = @(self.score.text.integerValue + 1).stringValue;
But when the text in the UILabel updates, all the animations stop abruptly and the remaining UIImageViews disappear. But, the animation only restarts after a few seconds, as if the images are becoming hidden. The code to animate the images and change image(They are the same for each one):
- (void) squareOneMover {
NSUInteger r = arc4random_uniform(3);
[self.squareOne setHidden:NO];
CGPoint originalPosition = self.squareOne.center;
CGPoint position = self.squareOne.center;
originalPosition.y = -55;
position.y += 790;
[self.squareOne setCenter:originalPosition];
[UIView animateWithDuration:r + 3
delay:0.0
options:UIViewAnimationOptionAllowUserInteraction
animations:^{
[self.squareOne setCenter:position];
}
completion:^(BOOL complete) {
if (complete) {
[self squareOneColour];
[self squareOneMover];
}
}
];
}
- (void) squareOneColour {
NSUInteger r = arc4random_uniform(5);
[self.squareOne setImage:[self.colorArray objectAtIndex:r]];
}
Anyone have a solution? And if by changing the text in a UILabel is supposed to stop animations (I don't know why they would do so) can someone provide a workaround to make keeping score possible.
Edit: I created a button that would increase the integer value of score. This means I can change the text in the UILabel manually. The animations still stopped the moment the text changed.
Edit 2: Method for the pressed event:
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [touches anyObject];
CGPoint touchLocation = [touch locationInView:self.view];
NSUInteger a = [self.colorArray indexOfObject:self.squareOne.image];
NSUInteger b = [self.iconColorArray indexOfObject:self.icon.image];
if ([self.squareOne.layer.presentationLayer hitTest:touchLocation]) {
_squareOne.hidden = YES;
}
if (a!=b) {
if (self.squareOne.hidden==YES) {
NSLog(@"NO");
}
}
if (a==b) {
if ([self.squareOne.layer.presentationLayer hitTest:touchLocation]) {
self.score.text = @(self.score.text.integerValue + 1).stringValue;
}
}
if ([self.squareTwo.layer.presentationLayer hitTest:touchLocation]) {
_squareTwo.hidden = YES;
}
}
Looking at Matt's answer, how would I animate the UIImageView by "changing its constraints"?
Constraints:
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-25-[btn1]-25-[btn2(==btn1)]-25-[btn3(==btn1)]-25-[btn4(==btn1)]-25-[btn5(==btn1)]-25-|" options:0 metrics:nil views:views]];
[self.view addConstraint:[NSLayoutConstraint
constraintWithItem:self.squareOne
attribute:NSLayoutAttributeTop
relatedBy:NSLayoutRelationEqual
toItem:self.view
attribute:NSLayoutAttributeTop
multiplier:0.0
constant:-55.0]];
//what all are you checking with the if's?
//I'm just curious there's a lot going on here
**//if this evaluates true
if ([self.squareOne.layer.presentationLayer hitTest:touchLocation]) {
_squareOne.hidden = YES;
}**
if (a!=b) {
if (self.squareOne.hidden==YES) {
NSLog(@"NO");
}
}
if (a==b) {
** //this will evaluate true also
if ([self.squareOne.layer.presentationLayer hitTest:touchLocation]) {
self.score.text = @(self.score.text.integerValue + 1).stringValue;
}**
}
//this works fine even when I added everything from interface builder which almost never happens
Update
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController
@property (strong, nonatomic)UILabel *label;
@property int tapCount;
@end
@implementation ViewController
-(void)viewDidLoad{
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]init];
[tap addTarget:self action:@selector(userTap:)];
[self.view addGestureRecognizer:tap];
}
-(UILabel*)label{
if (!_label) {
_label = [[UILabel alloc]init];
_label.text = @"taps:%3i",0;
[_label sizeToFit];
_label.center = self.view.center;
[self.view addSubview:_label];
}
return _label;
}
-(void)userTap:(UITapGestureRecognizer*)sender {
NSLog(@"tap");
self.tapCount ++;
[UIView animateWithDuration:1
animations:^{
self.label.text = [NSString stringWithFormat:@"taps:%i",self.tapCount];
self.label.center = [sender locationInView:self.view];
}
completion:nil];
}
@end
**just cleaning up the code a bit for future onlookers ** direct copy and paste only delete everything inside ViewController.m on a new project and paste this in it's place
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