[Mono-bugs] [Bug 570959] UISlider does not fire ValueChanged when the value is set via code
http://bugzilla.novell.com/show_bug.cgi?id=570959
http://bugzilla.novell.com/show_bug.cgi?id=570959#c3
Geoff Norton changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution||INVALID
--- Comment #3 from Geoff Norton 2010-02-20 18:19:02 UTC
---
This appears to be a bug in the underlying obj-c implementation of UISlider. I
wrote the following objc testcase:
@implementation SliderController
// Implement loadView to create a view hierarchy programmatically, without
using a nib.
- (void)loadView{
[super loadView];
CGRect frame = CGRectMake(10, 50, 300, 260);
label = [[UILabel alloc] initWithFrame:frame];
label.textAlignment = UITextAlignmentCenter;
label.font = [UIFont fontWithName:@"Verdana" size:36];
label.text = @"10";
[self.view addSubview:label];
frame = CGRectMake(10, 370, 300, 10);
slider = [[UISlider alloc] initWithFrame:frame];
slider.minimumValue = 0.0;
slider.maximumValue = 100.0;
slider.continuous = NO;
slider.value = 10.0;
[slider addTarget:self action:@selector(updateLabel:)
forControlEvents:UIControlEventValueChanged];
[self.view addSubview: slider];
frame = CGRectMake(10, 10, 300, 40);
button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = frame;
[button setTitle:@"Click Me" forState:UIControlStateNormal];
[button addTarget:self action:@selector(buttonClick:)
forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview: button];
}
- (void)buttonClick: (id) sender {
slider.value = 80.0;
}
- (void)updateLabel: (id) sender {
label.text = [NSString stringWithFormat:@"%f", slider.value];
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[super dealloc];
}
@end
Pushing the button causes the slider to move, but does NOT cause the label to
be updated, just like in MonoTouch.
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[Mono-bugs] [Bug 570959] UISlider does not fire ValueChanged when the value is set via code
http://bugzilla.novell.com/show_bug.cgi?id=570959
http://bugzilla.novell.com/show_bug.cgi?id=570959#c2
Manfred Pohler changed:
What|Removed |Added
Status|NEEDINFO|NEW
Info Provider|manf...@pp-p.net|
--- Comment #2 from Manfred Pohler 2010-02-20 06:59:46 UTC
---
(In reply to comment #1)
> Is this still happening? If so can you provide a test case please.
Yes it happens.
Create a project and add a class like this.
public class VCTest : UIViewController {
UIButton btN;
UISlider slD;
UILabel lbL;
public override void ViewDidLoad() {
base.ViewDidLoad();
btN = UIButton.FromType(UIButtonType.RoundedRect);
btN.Frame = new RectangleF(10, 10, 200, 30);
btN.SetTitle("Test", UIControlState.Normal);
btN.TouchUpInside += delegate { slD.Value = 50; };
slD=new UISlider(new RectangleF(10, 60, 300, 30));
slD.MinValue = 0;
slD.MaxValue = 100;
slD.ValueChanged += delegate { lbL.Text = slD.Value.ToString(); };
lbL= new UILabel(new RectangleF(10, 160, 100, 30));
View.AddSubview(btN);
View.AddSubview(slD);
View.AddSubview(lbL);
}
}
Use this class as you view with
public override bool FinishedLaunching (UIApplication app, NSDictionary
options) {
window.AddSubview(new VCTest().View);
window.MakeKeyAndVisible ();
return true;
}
Expected: the button should set the value and fire slD.ValueChanged
It does: the button changes the slider value - but it does NOT fire
slD.ValueChanged
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[Mono-bugs] [Bug 570959] UISlider does not fire ValueChanged when the value is set via code
http://bugzilla.novell.com/show_bug.cgi?id=570959 http://bugzilla.novell.com/show_bug.cgi?id=570959#c1 Geoff Norton changed: What|Removed |Added Status|NEW |NEEDINFO CC||gnor...@novell.com Info Provider||manf...@pp-p.net --- Comment #1 from Geoff Norton 2010-02-19 22:11:33 UTC --- Is this still happening? If so can you provide a test case please. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the QA contact for the bug. You are the assignee for the bug. ___ mono-bugs maillist - mono-bugs@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-bugs
