uislider

I am implementing a UISlider a user can manipulate to set a distance. I have never used the CocoaTouch UISlider, but have used other frameworks sliders, usually there is a variable for setting the "step" and other "helper" properties. The documentation for the UISlider deals only with a max and min value, and the output is always a 6 decimal float with a linear relation to the position of the "slider nob". I guess I will have to implement the desired functionality step by step. To the user, the min/max values range from 10 m to 999 Km, I am trying to implement this in an exponential way, that

Here's what I want to do with UI Slider .... I have a bunch of files with times and I show them based on slider value. The problem is I want to show the slider value when the user is changing/moving the slider. In other words, the value should change (and be shown on the screen) as the user is moving the slider (and not afterwards). Can anyone please give me any idea how to do it ? Thanks. You can ask to get a method called when the slider's value changes. Then using that change, you should update the text of a label. To listen for the value's change: [mySlider addTarget:self action:@selector

I'm working on an app and I have a custom UISlider . However, I'm having some issues on how to make the default thumb to appear smaller like the ones in the iOS control center. Note that I want the same iOS thumb, not a custom thumb image. So far, I've tried thumbRect(forBounds...) but no luck. Any suggestions? Axel Guilmin You can't change the size of the default thumb image, but UISlider has a method setThumbImage(_:for:) that will allow you to pass a similar, smaller image. In your view controller viewDidLoad : let image:UIImage? = // ... yourSlider.setThumbImage(image, for: .normal)

I'm playing songs in AVPlayer . I have created a separate view controller for my media player and initialization, and all the methods that I'm using for the player (play, pause, repeat, shuffle) are there in the same view controller. I update a slider like this: [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(sliderUpdate:) userInfo:nil repeats:YES];` - (void) sliderUpdate:(id) sender{ int currentTime = (int)((song.player.currentTime.value)/song.player.currentTime.timescale); slider.value=currentTime; NSLog(@"%i",currentTime); song.currentTime=currentTime; int

Why does the UISlider view ignore the alpha view when set to 0.5? Code: for (int i = 0; i < 3; i++) { UISlider *slider = [[[UISlider alloc] initWithFrame:CGRectMake(0, i * 30, 200, 30)] autorelease]; slider.alpha = 0.4 + (CGFloat)i / 10.0f; [window addSubview:slider]; } Result: The sliders have alpha values 0.4, 0.5 and 0.6. And as you can see the middle one with 0.5 is completely opaque. It seams to only occur with alpha 0.5. Have tested other UI controllers and they work as expected with alpha is set to 0.5. Reproduced with iOS 4.2 on real device and with iOS 3.2 and 4.2 in simulator. BTW if

i want to animate an UISlider for e.g. 0.25 to 0.75 and back. This should show the user what is to do. i tried this: [self incrementCounter:[NSNumber numberWithInt:0]]; -(void) incrementCounter:(NSNumber *)i { [Slider setValue:[i floatValue]/1000]; [self performSelector:@selector(incrementCounter:) withObject:[NSNumber numberWithInt:i.intValue+1] afterDelay:0.001]; } but thats not so smooth... can i use transitions for this? [Slider setValue:1 animated:YES]; is to fast... [UIView animateWithDuration:2.0 animations:^{ [Slider setValue:0.2]; }]; [UIView animateWithDuration:2.0 animations:^{