Using a UISlider to change volume

Question

What's the best way to use a UISlider to change the volume of the iPhone in an app?

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I've tried using that Bill (Using a UISlider to change volume)

But nothing appears on the screen using the code:

MPVolumeView *volumeView = [[[MPVolumeView alloc] initWithFrame:
                                CGRectMake(0, 0, 215, 22)] autorelease];
volumeView.center = CGPointMake(150,375);
[volumeView sizeToFit];
[self.view addSubview:volumeView];

Answer 1

I've just found a very easy way. Instead of coding, just place it in your XIB.

1. Open the XIB where you want to place to slider into
2. Add a UIView to your view
3. Change the class identity from UIView to MPVolumeView
4. Change backgroundColor to clear

Voila!

PS: Tested it on a device with iPhone OS 3.0. As lostInTransit stated before, it won't work on the simulator.

Answer 2

Using a UISlider to change volume

^ I tried that lostintransit, however this is not changing the ringer volume. It comes up on the iphone screen, but doesn't change anything. Even using the demo project provided.