Opacity is the extent to which something blocks light. "Opacity" setting that allows you to adjust the transparency of an image. To understand opacity, it is important understand what "opaque" means. An opaque object is completely impervious to light, which means you cannot see through it.
SeekBar: The Android SeekBar is a ProgressBar with a movable thumb. The end user can move the progress of the song, file download, and so on by dragging the thumb left and right.
SeekBar has many attributes: thumbTint, progressTint, max, id, layout_margin etc....
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