Using the Android SDK’s SeekBar, you can add draggable thumbs that let the user select a value from a range of values. This is useful for volume control and brightness control. When you restart the activity, the value is saved. The SeekBar also has the same attributes as the ProgressBar.
If you’re writing a custom view, you can use the SeekBar with a compatibility class to support older versions of the platform. This is useful if you’re developing for an older device, like a phone from the early days of Android. You’ll want to make sure to use the SeekBar’s compatibility class so that your views are automatically re-usable. You’ll also want to make sure you use the compatibility class when you create your layouts. If you’re using an activity with a top-level dialog, you’ll want to use the SeekBar’s compatibility classes to make sure that your layouts will work with the dialog.
If you’re creating a layout, you can use the Android SDK’s SeekBar widget to add layout elements such as the slider, which is used to select a value from a range of points. You can also use the SeekBar to assign a new theme. For example, you can set the color of the widget to blue or white. In addition, you can change the background image to a thumbnail, which is kept in res/drawable.