Dialog throwing "Unable to add window — token null is not for an application” with getApplication() as context

Question

My Activity is trying to create an AlertDialog which requires a Context as a parameter. This works as expected if I use:

AlertDialog.Builder builder = new Al         


        

Answer 1

In Activity on click of button showing a dialog box

Dialog dialog = new Dialog(MyActivity.this);

Worked for me.

Answer 2

Use MyDialog md = new MyDialog(MyActivity.this.getParent());

Answer 3

Using this did not work for me, but MyActivityName.this did. Hope this helps anyone who could not get this to work.

Answer 4

Instead of getApplicationContext(), just use ActivityName.this.

Answer 5

I had to send my context through a constructor on a custom adapter displayed in a fragment and had this issue with getApplicationContext(). I solved it with:

this.getActivity().getWindow().getContext() in the fragments' onCreate callback.

Answer 6

Just use following:

FOR JAVA USERS

In case you are using activity --> AlertDialog.Builder builder = new AlertDialog.Builder(this);

OR

AlertDialog.Builder builder = new AlertDialog.Builder(your_activity.this);

In case you are using fragment --> AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

FOR KOTLIN USERS

In case you are using activity --> val builder = AlertDialog.Builder(this)

OR

val builder = AlertDialog.Builder(this@your_activity.this)

In case you are using fragment --> val builder = AlertDialog.Builder(activity!!)