android.view.WindowManager$BadTokenExceptionViewRoot.setView()android.view.WindowManager$BadTokenException: Unable to add window -- token
android.os.BinderProxy@4059be38 is not valid; is your
android.view.WindowManager$BadTokenException: Unable to add window -- token null is not valid; is yourcom.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)方法来显示弹出窗口