Question

嗨，我是新的Android开发人员，我有一个问题。我有一个自定义列表视图，它有5个项目。该项目包括5个textview，1个按钮。 textviews一切都很好，但按钮很奇怪....

我的代码（关于按钮）流是

检查deliveryltemPosition.order_taken_str的值。
如果deliveryltemPosition.order_taken_str为2，则禁用complete_btn。

但每3个项目重复一次...... 只有第二个按钮值为2，但第6个按钮也被禁用。

- ＆GT; （button_able）（button_able）（button_able）（button_able）（button_able）（button_disable）（button_able）

如何解决？

package com.studentscalculator;

import com.studentscalculator.OperatorComparator.OPERATOR_PRIORITY;

public class Operator
{

    public enum OperatorType
    {
        UNARY, BINARY, TERNARY
    }

    public enum Associativity
    {
        LEFT, RIGHT
    }

    private String operator;
    public String getOperator(){return operator;}
    public void setOperator(String operator){this.operator = operator;}

    private int order;
    public int getOrder(){return order;}
    public void setOrder(int order){this.order = order;}

    private OperatorType type;
    public OperatorType getType(){ return type; }
    public void setType(OperatorType type){ this.type = type; }

    private Associativity associativity;
    public Associativity getAssociativity(){ return associativity;}
    public void setAssociativity(Associativity associativity){ this.associativity = associativity; }

    //Constructors
    public Operator(String operator)
    {
        this.setOperator(operator);
        this.setOrder(OperatorList.getOperatorOrder(operator));
        this.setType(OperatorList.getOperatorType(operator));
        this.setAssociativity(OperatorList.getOperatorAssociativity(operator));
    }

    public Operator(String operator, int order)
    {
        this.setOperator(operator);
        this.setOrder(order);
        this.setType(OperatorList.getOperatorType(operator));
    }

    public Operator(String operator, int order, OperatorType t)
    {
       init(operator, order, t, Associativity.LEFT);
    }

    public Operator(String operator, int order, OperatorType t, Associativity a)
    {
       init(operator, order, t, a);
    }

    void init(String operator, int order, OperatorType t, Associativity a)
    {
        this.setOperator(operator);
        this.setOrder(order);
        this.setType(t);
        this.setAssociativity(a);
    }


    public boolean lessThanEqual(Operator arg0)
    {
        int val = -(this.order - arg0.order);
        if (val <= 0)
            return true;
        else
            return false;
    }

    public boolean lessThan(Operator arg0)
    {
        int val = -(this.order - arg0.order);
        if (val < 0)
            return true;
        else
            return false;
    }

    @Override
    public String toString()
    {
        String val = String.format("Operator = %s : Order %s", getOperator(), getOrder());
        return val;
    }

}

Answer 1

试试这个

if (deliveryltemPosition.order_taken_str.equals("2")){
    complete_btn.setEnabled(false);
} else {
    complete_btn.setEnabled(true);
}

列表视图中的禁用按钮每3次重复一次

1 个答案: