Android Dialog problem

android Dialog

I wrote a class that inherits Dialog class, make prompt use, however, and with the AlertDialog system has a difference is, when AlertDialog pop-up form, the background is transparent gray, is on display to highlight AlertDialog, but I wrote This class does not effect how this implementation ah? There is to know?

              

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Reply:
Manifest try the application of which is set Theme
Reply:

cited a floor tantahe reply:

Manifest try the application inside the Theme Settings

I wrote a dialog inheritance, there is no code in Manifest ah
Reply:
Write a style:

Reply:

reference to the third floor hongbingfans reply:

write a style:

Thank you, good use