如何在Android Pie和UP中以编程方式打开/关闭扬声器 [英] how to turn speaker on/off programmatically in android Pie and UP

问题描述

与此问题以及几年前的许多其他问题相同:如何在Android中以编程方式打开/关闭扬声器4.0

Same as this question and many others from a few years ago: how to turn speaker on/off programmatically in android 4.0

Android似乎已经改变了处理方式.

It seems that Android has changed the way it handles this.

以下是我尝试拨打电话以通过编程方式设置免提电话的操作.这些解决方案都无法在Android Pie上为我工作.虽然它们似乎在Android Nougat和Oreo上运行良好

here are the things I tried to make an Outgoing call to have a speakerphone programmatically. None of these solutions worked for me on Android Pie. while they seem to work well on Android Nougat and Oreo

解决方案1.

final static int FOR_MEDIA = 1;
final static int FORCE_NONE = 0;
final static int FORCE_SPEAKER = 1;

Class audioSystemClass = Class.forName("android.media.AudioSystem");
Method setForceUse = audioSystemClass.getMethod("setForceUse", int.class, int.class);
setForceUse.invoke(null, FOR_MEDIA, FORCE_SPEAKER);

2.

AudioManager audioManager = (AudioManager)getApplicationContext().getSystemService(Context.AUDIO_SERVICE);
if (audioManager != null) {
   audioManager.setMode(AudioManager.MODE_IN_COMMUNICATION);
   audioManager.setSpeakerphoneOn(true);

3.

AudioManager audioManager = (AudioManager)getApplicationContext().getSystemService(Context.AUDIO_SERVICE);
if (audioManager != null) {
   audioManager.setMode(AudioManager.MODE_IN_CALL);
   audioManager.setSpeakerphoneOn(true);

4.

Thread thread = new Thread() {
    @Override
    public void run() {
        try {
            while(true) {
                sleep(1000);
                audioManager.setMode(AudioManager.MODE_IN_CALL);
                if (!audioManager.isSpeakerphoneOn())
                    audioManager.setSpeakerphoneOn(true);
            }
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
};
thread.start();

该应用程序具有以下许多其他授予的权限:

the app has the following permissions granted among many others:

<uses-permission android:name="android.permission.CALL_PHONE"/>
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
<uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />

我也仅对拨出电话尝试了以下解决方案.而且也不起作用.

I have also tried the following solution only for outgoing calls. and it also didn't work.

Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.putExtra("speaker", true);
callIntent.setData(Uri.parse("tel:" + number));
context.startActivity(callIntent);

推荐答案

在Android Pie中，我遇到了同样的问题.我使用 InCallService 和

In Android Pie, I had the same problem. I resolved it using an InCallService with

setAudioRoute(ROUTE_SPEAKER)

您的应用程序必须是默认电话应用程序.

Your app needs to be Default phone app.

这篇关于如何在Android Pie和UP中以编程方式打开/关闭扬声器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！