Which of the following is incorrect about ProgressDialog?

Which of the following is incorrect about ProgressDialog?
A . ProgressDialog inherits from the AlertDialog class.
B . ProgressDialog can be set as 2 types of style: STYLE_HORIZONTAL and STYLE_SPINNE
D . ProgressDialog is able to apply a custom XML-defined layout by using the setContentView(…) method.
E . ProgressDialog can be freely configured to use a Drawable class to display as its progress bar.

Answer: C

Explanation:

Incorrect:

A: ProgressDialog extends the AlertDialog class.

B: STYLE_HORIZONTAL creates a ProgressDialog with a horizontal progress bar. STYLE_SPINNERcreates a ProgressDialog with a circular, spinning progress bar.

References: http://developer.android.com/reference/android/app/ProgressDialog.html