点击下拉快捷开关开启web服务，偶发空指针崩溃报错

[Susiia]

报错信息：
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.service.quicksettings.Tile.setState(int)' on a null object reference
at io.legado.app.service.WebTileService.onStartListening(SourceFile:29)
at android.service.quicksettings.TileService$H.handleMessage(TileService.java:488)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loopOnce(Looper.java:249)
at android.os.Looper.loop(Looper.java:337)
at android.app.ActivityThread.main(ActivityThread.java:9590)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:593)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:935)

[821938089]

修复了，试试最新测试版