Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
467 views
in Technique[技术] by (71.8m points)

cocoa touch - Using a UISlider to change volume

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


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];
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

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.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...