android – 如何在相同的微调器值选择上调用 *** 作

概述我从微调器中选择值,当我再次选择相同的值时,不会对单击执行任何 *** 作. 使用这个自定义Spinner类…… /** Spinner extension that calls onItemSelected even when the selection is the same as its previous value */public class NDSpinner extends Spinner 我从微调器中选择值,当我再次选择相同的值时,不会对单击执行任何 *** 作.解决方法 使用这个自定义Spinner类……

/** Spinner extension that calls onItemSelected even when the selection is the same as its prevIoUs value */public class NDSpinner extends Spinner {  public NDSpinner(Context context)  { super(context); }  public NDSpinner(Context context,AttributeSet attrs)  { super(context,attrs); }  public NDSpinner(Context context,AttributeSet attrs,int defStyle)  { super(context,attrs,defStyle); }  @OverrIDe public voID  setSelection(int position,boolean animate)  {    boolean sameSelected = position == getSelectedItemposition();    super.setSelection(position,animate);    if (sameSelected) {      // Spinner does not call the OnItemSelectedListener if the same item is selected,so do it manually Now      getonItemSelectedListener().onItemSelected(this,getSelectedVIEw(),position,getSelectedItemID());    }  }  @OverrIDe public voID  setSelection(int position)  {    boolean sameSelected = position == getSelectedItemposition();    super.setSelection(position);    if (sameSelected) {      // Spinner does not call the OnItemSelectedListener if the same item is selected,getSelectedItemID());    }  }}

总结

以上是内存溢出为你收集整理的android – 如何在相同的微调器值选择上调用 *** 作全部内容，希望文章能够帮你解决android – 如何在相同的微调器值选择上调用 *** 作所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。