相关疑难解决方法(0)

1. a只能在这里决赛.为什么？如何a在onClick()不将其保留为私有成员的情况下重新分配方法？

   private void f(Button b, final int a){
       b.addClickHandler(new ClickHandler() {
   
           @Override
           public void onClick(ClickEvent event) {
               int b = a*5;
   
           }
       });
   }
   

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2. 如何5 * a点击它返回？我的意思是,

   private void f(Button b, final int a){
       b.addClickHandler(new ClickHandler() {
   
           @Override
           public void onClick(ClickEvent event) {
                int b = a*5;
                return b; // but return type is void 
           }
       });
   }
   

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我String从数据库中获取3个值,然后我将其转换为Long然后我正在计算差异,然后将此计算Long值作为参数放入方法中.我正在使用FastAdapter.

这filterRequests(List <Long> l)是一种MainActivity基于long来过滤请求/内容的逻辑的方法l.

整个适配器:

public class GRModelClass extends AbstractItem<GRModelClass, GRClass.ViewHolder>{

    private static final ViewHolderFactory<? extends ViewHolder> FACTORY = new ItemFactory();

    String postedBy, postedTime, currentLat, currentLng, utcFormatDateTime, userEmail, userID;
    String startDateTimeInEpoch, endDateTimeInEpoch;
    DatabaseReference primaryDBKey;
    long ms;
    String itemID;

    public GRModelClass(){}

    public GRModelClass(String postedBy, String postedTime, String currentLat, String currentLng, String utcFormatDateTime, String userEmail, String userID, String startDateTimeInEpoch, String endDateTimeInEpoch, DatabaseReference primaryDBKey) {
        this.postedBy = " " …