plus.audio.ROUTE_EARPIECE 听筒模式在某些手机无效

var Context = plus.android.importClass("android.content.Context");
var am = plus.android.runtimeMainActivity().getSystemService(Context.AUDIO_SERVICE);
am.setSpeakerphoneOn(false);
am.setMode(audioManager.MODE_IN_COMMUNICATION);

只能调用原生API 解决