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PONSNotificationCenter removing wrong observers?
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copied!<p>Is there any corner case behaviors for removeObserver:name:object:? In the following block of code, my observer isn't being registered properly:</p> <pre><code>- (void)setPlayerItem:(AVPlayerItem *)playerItem { [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playerItemDidReachEnd:) name:nil object:playerItem]; [playerItem addObserver:self forKeyPath:kStatus options:0 context:(__bridge void*)self]; [playerItem addObserver:self forKeyPath:kPlaybackBufferEmpty options:0 context:(__bridge void*)self]; // For adding a buffering activity indicator id temp = playerItem_; playerItem_ = [playerItem retain]; [[NSNotificationCenter defaultCenter] removeObserver:self name:nil object:temp]; [temp removeObserver:self forKeyPath:kPlaybackBufferEmpty]; [temp removeObserver:self forKeyPath:kStatus]; [temp release]; } </code></pre> <p>However, if I change the order around to:</p> <pre><code>- (void)setPlayerItem:(AVPlayerItem *)playerItem { [playerItem addObserver:self forKeyPath:kStatus options:0 context:(__bridge void*)self]; [playerItem addObserver:self forKeyPath:kPlaybackBufferEmpty options:0 context:(__bridge void*)self]; // For adding a buffering activity indicator id temp = playerItem_; playerItem_ = [playerItem retain]; [[NSNotificationCenter defaultCenter] removeObserver:self name:nil object:temp]; [temp removeObserver:self forKeyPath:kPlaybackBufferEmpty]; [temp removeObserver:self forKeyPath:kStatus]; [temp release]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playerItemDidReachEnd:) name:nil object:playerItem]; } </code></pre> <p>All the notifications post just fine. This leads me to believe something strange is happening when I call:</p> <pre><code> [[NSNotificationCenter defaultCenter] removeObserver:self name:nil object:temp]; </code></pre> <p>Am I missing something really obvious here? I'm on iOS 6 with no ARC.</p>

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