[英]android -how to listen to SpeakerPhone change
我希望能夠收聽 android 原生揚聲器按鈕的開/關事件。
意識到我可以產生一個子線程並繼續檢查 AudioManager.isSpeakerphoneOn(); 那只會縮短電池壽命等等。有沒有聽眾?
從API 29開始,您可以使用 Intent 過濾器AudioManager.ACTION_SPEAKERPHONE_STATE_CHANGED注冊BroadcastReceiver 。
AudioManager.ACTION_SPEAKERPHONE_STATE_CHANGED
BroadcastReceiver
文檔可在此處的 Android 官方頁面中找到。
不幸的是,對於 API < 29,除了輪詢之外,我沒有找到任何其他方法。
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