What's the meaning of android:progressBarStyle attribute in ProgressBar?

Question

I\'ve been looking through the documentation for ProgressBar class and found these attributes:

• android:progressBarStyle
• android:progressB

Answer 1

The four attributes that you mention can be applied to a ProgressBar's style like so:

style="?android:attr/progressBarStyleHorizontal"

The style constant android:progressBarStyleHorizontal is your typical incremental progress bar:

While the other three are varying sizes of the same circular progress bar:

style="?android:attr/progressBarStyleSmall"

style="?android:attr/progressBarStyle"

style="?android:attr/progressBarStyleLarge"

Update:

According to adamp's comments:

These are attributes of the theme that point at themed styles you can use for progress indicators...They are not attributes for ProgressBar itself.