如何在Android Studio中对录制音频进行线程处理？

Question

我正在使用AudioRecord对象，并且在AudioRecord.OnRecordPositionUpdateListener我正在实现AudioRecord.read以将数据写入字节缓冲区，此后，我调用另一个对象的方法来处理字节缓冲区，然后将其返回以写入文件，就是问题是对象的处理时间很长，似乎正在停止主线程，这很奇怪，我认为AudioRecord.OnRecordPositionUpdateListener是Threaded

Answer 1

Unless it explicitly says so, assume nothing is threaded in android. Its all callbacks on the UI thread.

The normal way to do this would be to start up a thread in onCreate or onStart of your app, and have it wait for a message from the main thread. Your implementation of onMarkerRead (or whatever other function you need) would then send a message to that thread. You could create a thread whenever the notification function is called, but keeping the thread around avoids thread creation overhead at the OS level every time you get a notification.

Avoid using AsyncTasks here. They sound like the right solution, but since all app tasks are single threaded they could be held up indefinitely.