6

文件是这么说的，但我不能完全理解。

/* modes for setMode/getMode/setRoute/getRoute */
    /**
     * Audio harware modes.
     */
    /**
     * Invalid audio mode.
     */
    public static final int MODE_INVALID            = AudioSystem.MODE_INVALID;
    /**
     * Current audio mode. Used to apply audio routing to current mode.
     */
    public static final int MODE_CURRENT            = AudioSystem.MODE_CURRENT;
    /**
     * Normal audio mode: not ringing and no call established.
     */
    public static final int MODE_NORMAL             = AudioSystem.MODE_NORMAL;
    /**
     * Ringing audio mode. An incoming is being signaled.
     */
    public static final int MODE_RINGTONE           = AudioSystem.MODE_RINGTONE;
    /**
     * In call audio mode. A telephony call is established.
     */
    public static final int MODE_IN_CALL            = AudioSystem.MODE_IN_CALL;
    /**
     * In communication audio mode. An audio/video chat or VoIP call is established.
     */
    public static final int MODE_IN_COMMUNICATION   = AudioSystem.MODE_IN_COMMUNICATION;
    /**
     * Call screening in progress. Call is connected and audio is accessible to call
     * screening applications but other audio use cases are still possible.
     */
    public static final int MODE_CALL_SCREENING     = AudioSystem.MODE_CALL_SCREENING;

你能用例子解释一下吗？

目前，我在 WebView 上使用视频聊天服务，我得到MODE_CALL_SCREENING，它使用媒体音量，它应该使用“通话”音量。我怎么能强迫它？

4

2 回答 2

1

MODE_IN_CALL
您正在通过纯音频通话（普通电话）与某人通话

MODE_IN_COMMUNICATION
您正在与您的朋友进行视频和音频聊天或通过 VoIP 呼叫他们

MODE_CALL_SCREENING
您的电话正在响铃，您在接听电话之前正在检查电话号码

于 2022-01-10T08:28:01.497 回答
0

在AudioSystem类中定义mode参数来设置手机的状态

MODE_IN_CALL

public static final int MODE_IN_CALL

来电模式。建立了一个电话呼叫。

Constant Value: 2 (0x00000002)

private void setAudioNormal() {
    AudioManager audioManager = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE);
    audioManager.setMode(AudioManager.MODE_NORMAL);
    audioManager.setSpeakerphoneOn(false);
  }
}

另一个例子

import android.media.AudioManager; 
public void startOutgoingRinger(OutgoingRinger.Type type) {
    AudioManager audioManager = ServiceUtil.getAudioManager(context);
    audioManager.setMicrophoneMute(false);

    if (type == OutgoingRinger.Type.SONAR) {
        audioManager.setSpeakerphoneOn(false);
    }

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
        audioManager.setMode(AudioManager.MODE_IN_COMMUNICATION);
    } else {
        audioManager.setMode(AudioManager.MODE_IN_CALL);
    }

    outgoingRinger.start(type);
}

MODE_IN_COMMUNICATION

public static final int MODE_IN_COMMUNICATION

在通信音频模式下。建立音频/视频聊天或 VoIP 通信。

Constant Value: 3 (0x00000003)

  private void chooseVoiceMode() {
      AudioManager audioManager = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE);
      if(mAudioConfiguration.aec) {
        audioManager.setMode(AudioManager.MODE_IN_COMMUNICATION);
        audioManager.setSpeakerphoneOn(true);
      } else {
        audioManager.setMode(AudioManager.MODE_NORMAL);
        audioManager.setSpeakerphoneOn(false);
      }
    }

MODE_CALL_SCREENING

public static final int MODE_CALL_SCREENING

呼叫筛选正在进行中。通话已接通，但音频未使用。

Constant Value: 4 (0x00000004)

public int getMode() {
    final IAudioService service = getService();
    try {
        int mode = service.getMode();
        int sdk;
        try {
            sdk = getContext().getApplicationInfo().targetSdkVersion;
        } catch (NullPointerException e) {
            // some tests don't have a Context
            sdk = Build.VERSION.SDK_INT;
        }
        if (mode == MODE_CALL_SCREENING && sdk <= Build.VERSION_CODES.Q) {
            mode = MODE_IN_CALL;
        }
        return mode;
    } catch (RemoteException e) {
        throw e.rethrowFromSystemServer();
    }
}

点击这里查看更多示例

于 2022-01-17T05:40:18.073 回答