How to turn on speaker programmatically in android

Question

收到来电并且耳机连接在音频插孔上时，如何以编程方式打开扬声器？

Answer 1

audiomanager.setSpeakerphoneOn(true)

请务必在清单中包含MODIFY_AUDIO_SETTINGS权限。

Answer 2

// for android 10 and higher
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.putExtra(TelecomManager.EXTRA_START_CALL_WITH_SPEAKERPHONE, true);
callIntent.setData(Uri.parse("tel:" + phone));