为什么“无法添加窗口 - 令牌无效”异常来了？

Question

android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@43e64670 is not valid; is your activity running?

当我尝试显示一个对话框时，我收到此异常。为什么会这样？

Answer 1

Dialog dialog = new Dialog(Myactivity.this);

如果你有tabGroupactivity ......

Dialog dialog = new Dialog(Myactivity.this.getParent());