问题描述
当mac连接蓝牙耳机时（bose QC30等,当然设备不仅限于蓝牙耳机），每次断连再重连总会自动打开iTunes，很烦啊。。。
问题原因
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On OSX, the “RCD” (remote control daemon) is responsible for the naughtiness. It has hard-coded list of actions to do when it detects certain “events” - one of them being connecting to a bluetooth headset.
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简单理解就是，蓝牙耳机重连到mac上后，有一系列指定动作是系统硬编码的。
解决办法
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launchctl stop com.apple.rcd：本次系统启动stop rcd进程
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launchctl unload -w /System/Library/LaunchAgents/com.apple.rcd.plist：持久化修改
