How can I switch the UIsegmentedControll programmatically?

Question

How can I switch the UIsegmentedControll programmatically?

Answer 1

The selectedSegmentIndex property identifies the selected UISegmentedControl segment. Set this property to any valid segment index or UISegmentedControlNoSegment (-1) to disable the current selection.

// select the first segment segmented.selectedSegmentIndex = 0; // turn off the current selection segmented.selectedSegmentIndex = UISegmentedControlNoSegment; 

Answer 2

Alternatively, after you change the call to selectedSegmentIndex 'sendActionsForControlEvents:' for example

 segmentedControl.selectedSegmentIndex = 0 [segmentedControl sendActionsForControlEvents:UIControlEventValueChanged]; 

Answer 3

@jmstone answer, true, this action will not raise the valueChanged event for this control.

One way to overcome this is to simply call the function yourself:

 segmentedControl.selectedSegmentIndex = 3; [self valueChangedMethod:segmentedControl]; 

This will cause:

 - (void)valueChangedMethod:(UISegmentedControl *)segmentedControl { //continue your code here... } 

Answer 4

In Swift:

 segmentedControl.selectedSegmentIndex = 1 

Swift 2:

 segmentedControl.sendActionsForControlEvents(UIControlEvents.ValueChanged) 

Swift 3:

 segmentedControl.sendActions(for: UIControlEvents.valueChanged) 

Answer 5

I had a similar problem when the segmented control did not change. I called "selectedSegmentIndex" etc. Too early. As soon as I called him after calling "viewDidLoad", everything was fine.