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]];
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