Android 8.0 Dialog 需要适配，否则会报错闪退：
android.view.WindowManager$BadTokenException: Unable to add window android.view.ViewRootImpl$W@e283326 -- permission denied for window type 2003
at android.view.ViewRootImpl.setView(ViewRootImpl.java:905)
at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:372)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:128)
at android.app.Dialog.show(Dialog.java:454)
at com.maple.recorder.player.PlayDialog.showDialog(PlayDialog.java:141)
at com.maple.recorder.player.PlayDialog.showDialog(PlayDialog.java:136)
at com.maple.recordwav.ui.PlayPage.dialogPlay(PlayPage.java:123)
at com.maple.recordwav.ui.PlayPage.access$200(PlayPage.java:37)
at com.maple.recordwav.ui.PlayPage$2.onItemClick(PlayPage.java:92)
at android.widget.AdapterView.performItemClick(AdapterView.java:321)
at android.widget.AbsListView.performItemClick(AbsListView.java:1217)
at android.widget.AbsListView$PerformClick.run(AbsListView.java:3203)
解决方案：
将Type类型
getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
改为如下，即可
getWindow().setType(WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY);
参考文章
《android 8.0使用悬浮窗时，报错permission denied for window type 2007》
