当应用程序在后台时访问android 9中的麦克风 [英] Access microphone in android 9 while the app is in the background

问题描述

Android 9 限制了后台应用访问用户输入的能力.如果您的应用在运行 Android 9 的设备上在后台运行，系统会对您的应用应用以下限制:

Android 9 limits the ability for background apps to access user input. If your app is running in the background on a device running Android 9, the system applies the following restrictions to your app:

您的应用无法使用麦克风或摄像头.

Your app cannot access the microphone or camera.

当应用程序在后台时，有什么方法可以在 android 9 中访问麦克风.

Is there any way to access microphone in android 9 while the app is in the background.

推荐答案

One more change was added in Android 9: only apps running in the 
foreground (or a foreground service) could capture the audio input.

参考:https://developer.android.com/guide/topics/media/sharing-audio-input#pre-behavior

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