单一用途应用程序/信息亭应用程序/锁定任务模式下的文本到语音

Question

In my current Android project I have to use tts (to read messages) in lock task mode (single purpose app/kiosk app). Everything works well in 'normal' app mode but when i try use text-to-speech in lock task mode then no sound comes out.

I add com.google.android.tts packake to setLockTaskPackages() but it's still not work.

Do you have any other solutions or samples usage tts in lock task mode?

Answer 1

Solution moved from @skajar 's question post.

The solution is very easy, just don't forget to set property parameters in set User Restriction() In my case:

 setUserRestriction(UserManager.DISALLOW_MOUNT_PHYSICAL_MEDIA, false); setUserRestriction(UserManager.DISALLOW_ADJUST_VOLUME, false);