patternMinor
HMSegmentedControl react to tapping on currently selected segment
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tappingreactsegmentselectedhmsegmentedcontrolcurrently
Problem
I'm using HMSegmentedControl, an open-source UISegmentedControl subclass. I'm trying to react to the user tapping on the currently selected segment. HMSegmentedControl only supports reacting to a segment CHANGE, with either
```
-(void)segmentedControlValueChanged:(HMSegmentedControl *)control {
CGFloat midX = self.view.frame.size.width / 2 - _filterView.frame.size.width / 2;
_filterView.frame = CGRectMake(midX, -_filterView.frame.size.height+64, _filterView.frame.size.width, _filterView.frame.size.height);
_filterView.hidden = YES;
_filterBackgroundView.alpha = 0.0f;
_filterBackgroundView.hidden = YES;
}
-(void)segmentedControlTouchUpInside:(UIGestureRecognizer *)gr {
if(!_filterView) {
_filterView = (HomeFilterView *)[[NSBundle mainBundle] loadNibNamed:@"HomeFilterView" owner:self options:nil].firstObject;
CGFloat midX = self.view.frame.size.width / 2 - _filterView.frame.size.width / 2;
_filterView.frame = CGRectMake(midX, -_filterView.frame.size.height+64, _filterView.frame.size.width, _filterView.frame.size.height);
_filterView.delegate = self;
[self.view insertSubview:_filterView belowSubview:self.segmentedControl];
}
if(!_filterBackgroundView) {
_filterBackgroundView = [[UIView alloc] initWithFrame:self.view.bounds];
_filterBackgroundView.backgroundColor = [UIColor blackColor];
_filterBackgroundView.alpha = 0.0f;
[self.view insertSubview:_filterBackgroundView belowSubview:_filterView];
}
_filterView.hidden = NO;
_filterBackgroundView.hidden = NO;
[UIView animateWithDuration:0.5f delay:0.0f usingSpringWithDamping:0.55f initialSpringVelocity:0.0f options:UIViewAnimationOptionCurveLinear animations:^{
CGFloat midX = self.view.frame.s
UIControlEventValueChanged or a block that executes when the index is changed. I need to react to the currently selected segment in order to present a drop-down menu. Here is what I've done so far:```
-(void)segmentedControlValueChanged:(HMSegmentedControl *)control {
CGFloat midX = self.view.frame.size.width / 2 - _filterView.frame.size.width / 2;
_filterView.frame = CGRectMake(midX, -_filterView.frame.size.height+64, _filterView.frame.size.width, _filterView.frame.size.height);
_filterView.hidden = YES;
_filterBackgroundView.alpha = 0.0f;
_filterBackgroundView.hidden = YES;
}
-(void)segmentedControlTouchUpInside:(UIGestureRecognizer *)gr {
if(!_filterView) {
_filterView = (HomeFilterView *)[[NSBundle mainBundle] loadNibNamed:@"HomeFilterView" owner:self options:nil].firstObject;
CGFloat midX = self.view.frame.size.width / 2 - _filterView.frame.size.width / 2;
_filterView.frame = CGRectMake(midX, -_filterView.frame.size.height+64, _filterView.frame.size.width, _filterView.frame.size.height);
_filterView.delegate = self;
[self.view insertSubview:_filterView belowSubview:self.segmentedControl];
}
if(!_filterBackgroundView) {
_filterBackgroundView = [[UIView alloc] initWithFrame:self.view.bounds];
_filterBackgroundView.backgroundColor = [UIColor blackColor];
_filterBackgroundView.alpha = 0.0f;
[self.view insertSubview:_filterBackgroundView belowSubview:_filterView];
}
_filterView.hidden = NO;
_filterBackgroundView.hidden = NO;
[UIView animateWithDuration:0.5f delay:0.0f usingSpringWithDamping:0.55f initialSpringVelocity:0.0f options:UIViewAnimationOptionCurveLinear animations:^{
CGFloat midX = self.view.frame.s
Solution
You can fork the control and do a tiny modification to the code to do what you need.
In
In
touchesEnded:withEvent:, you need to modify this line so it wouldn't check if the tapped segment is the currently selected segment:if (segment < sectionsCount)Code Snippets
if (segment < sectionsCount)Context
StackExchange Code Review Q#75514, answer score: 4
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