StackOverflow2013

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plurals

PO
primarykey
Id
1229539
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2009-08-04T19:45:44.743
FavoriteCount
0
LastActivityDate
2009-08-05T21:16:57.117
LastEditDate
2009-08-05T21:16:57.117
LastEditorUserId
149910
OwnerUserId
149910
ParentId
463034
PostTypeId
2
Score
1
ViewCount
0
LastEditorDisplayName
text
Body
I am using this same technique, however I am noticing the following behavior: On an iPod touch G2: The MPVolumeView slider works and fully responds to the rocker switch from app startup time. On an iPhone Gen 1 and 3G: The MPVolumeView slider doesn't start changing the volume until media playback has occurred via the AudioQueue APIs, and will stop changing the volume when AudioSessionSetActive(false) is called. Even more bizarre: if you hit the rocker switch on the iPhone while using the AudioQueue APIs during playback then the MPVolumeView slider will work for the rest of the lifetime of the app. <a href="http://blog.stormyprods.com/2008/09/proper-usage-of-mpvolumeview-class.html" rel="nofollow noreferrer">This code</a> keeps everything in sync, and tends to help with ensuring that the rocker switch and the slider stay in sync, but it doesn't eliminate the issues I am having with MPVolumeView on an iPhone. All of my experience here is under iPhone OS 3.0 with the iPhone 3.0 SDK. I hope this helps narrow down your problem somewhat. My next tactic was to start doing things with kAudioSessionProperty_AudioRoute and try alternate values for kAudioSessionProperty_AudioCategory to see what happens. Side note: Thanks to everyone on the IB techniques for creation and managing the MPVolumeView. I was using code to create and place it, and I keep forgetting about the technique where you can set the type of the UIView in IB. Side note 2: In working with the MPVolumeView I discovered that if you set the audio category to anything other than kAudioSessionCategory_MediaPlayback that the MPVolumeView will display the text "iPhone..." when the iPhone is set to silent mode.
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Title
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PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POUsing a UISlider to change volume
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 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USBatgar
UserOwnerUserId
1. USBatgar
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PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
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1. This table or related slice is empty.

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