您已使用 android:orientation ="horizo​​ntal" 指定了"linearLayoutCompletedOfficeHours"作为线性布局，并指定了textview Android:layout_width ="match_parent" .这样做会使textview占据整个空间，并且会创建进度条并将其显示在屏幕中.而是将textView的宽度更改为 android:layout_width ="wrap_content" ，进度将是可见的.

You have specified "linearLayoutCompletedOfficeHours" as a Linear Layout with android:orientation="horizontal" and given textview android:layout_width="match_parent".Making this will make textview to take entire space and progressbar is created and shown in the screen. Instead change textView width to android:layout_width="wrap_content" and the progress will be visible.

<TextView
   android:layout_width="wrap_content"
   android:layout_height="match_parent"
   android:id="@+id/completedXOfYDays" />