Sometimes an application needs to adjust the range of a numeric widget, such as a Spinner or Slider, dynamically.
有时，应用程序需要动态地调整数值小部件的范围，例如Spinner或者Slider。
Sometimes an application needs to adjust the range of a numeric widget, such as a Spinner or Slider, dynamically.
有时，应用程序需要动态地调整数值小部件的范围，例如Spinner或者Slider。
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