安卓：如何刪除分隔線數量拾取

Question

如何刪除分隔線數量選擇器，我試圖setShowDivider爲none（無，似乎不存在）通過XML和代碼注意到工作

picker.setShowDividers(LinearLayout.SHOW_DIVIDER_NONE); 

XML ：

android:showDividers="none" 

Answer 1

集的主題爲Numberpicker

<NumberPicker 
    ... 
    android:theme="@style/DefaultNumberPickerTheme" /> 

style.xml

<style name="DefaultNumberPickerTheme" parent="AppTheme"> 
     <item name="colorControlNormal">@color/transparent</item> 
</style> 

OR

private void changeDividerColor(NumberPicker picker, int color) { 

    java.lang.reflect.Field[] pickerFields = NumberPicker.class.getDeclaredFields(); 
    for (java.lang.reflect.Field pf : pickerFields) { 
     if (pf.getName().equals("mSelectionDivider")) { 
      pf.setAccessible(true); 
      try { 
       ColorDrawable colorDrawable = new ColorDrawable(color); 
       pf.set(picker, colorDrawable); 
      } catch (IllegalArgumentException e) { 
       e.printStackTrace(); 
      } catch (Resources.NotFoundException e) { 
       e.printStackTrace(); 
      } 
      catch (IllegalAccessException e) { 
       e.printStackTrace(); 
      } 
      break; 
     } 
    } 
} 

，並設置爲

changeDividerColor(yournumberpicker, Color.parseColor("#00ffffff")); 

Answer 2

該代碼會更好

private void changeDividerColor(NumberPicker picker, int color) { 
     try { 
      Field mField = NumberPicker.class.getDeclaredField("mSelectionDivider"); 
      mField.setAccessible(true); 
      ColorDrawable colorDrawable = new ColorDrawable(color); 
      mField.set(picker, colorDrawable); 
     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
    }