点击退出的时候奔溃

[df13954]

    java.lang.RuntimeException: Unable to stop service com.wrbug.developerhelper.service.FloatWindowService@54e0c28: java.lang.IllegalArgumentException: View=android.widget.ImageView{3f4beed V.ED..C.. ......ID 0,0-0,0} not attached to window manager
        at android.app.ActivityThread.handleStopService(ActivityThread.java:3374)
        at android.app.ActivityThread.-wrap27(ActivityThread.java)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1588)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:154)
        at android.app.ActivityThread.main(ActivityThread.java:6121)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)
        at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:107)
     Caused by: java.lang.IllegalArgumentException: View=android.widget.ImageView{3f4beed V.ED..C.. ......ID 0,0-0,0} not attached to window manager
        at android.view.WindowManagerGlobal.findViewLocked(WindowManagerGlobal.java:473)
        at android.view.WindowManagerGlobal.removeView(WindowManagerGlobal.java:382)
        at android.view.WindowManagerImpl.removeView(WindowManagerImpl.java:119)
        at com.yhao.floatwindow.FloatPhone.dismiss(FloatPhone.java:121)
        at com.yhao.floatwindow.IFloatWindowImpl.dismiss(IFloatWindowImpl.java:118)
        at com.yhao.floatwindow.FloatWindow.destroy(FloatWindow.java:53)
        at com.wrbug.developerhelper.service.FloatWindowService.onDestroy(FloatWindowService.kt:118)
        at android.app.ActivityThread.handleStopService(ActivityThread.java:3357)
        at android.app.ActivityThread.-wrap27(ActivityThread.java) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1588) 
        at android.os.Handler.dispatchMessage(Handler.java:102) 
        at android.os.Looper.loop(Looper.java:154) 
        at android.app.ActivityThread.main(ActivityThread.java:6121) 
        at java.lang.reflect.Method.invoke(Native Method)