Android – show ProgressDialog questions in nested tag activities

I have nested tag activities

Tabmain (tabhost), I have childtab (another tabhost) and two other activities

I can display the progress dialog box in the other 2 activities

But in childtab activity, I added five activities

There I can display ProgressDialog

I received the following error

Error / androidruntime (339): cause: android.view.windowmanager $badtokenexception: unable to add window token - android.app.localactivitymanager$ LocalActivityRecord@43d304f0 Invalid; Is your activity running?

resolvent:

Try ProgressDialog ProgressDialog = ProgressDialog. Show (getparent(), "loading...", "please wait...");

... I think it will make things worse