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有没有办法检查 Android 中手机收音机的当前状态？我一直在了解无线电为传输而上下电的方式，我对自己编写应用程序的方式感到有些恐惧。有没有办法检查收音机是否已经通电（允许我搭载会话并保存数据）或在收音机通电时接收事件？