替代目标C中的switch语句 [英] Alternative to switch statement in objective C

问题描述

我正在做一个项目，其中我从异步连接的JSON数据加载表视图。我使用开关语句来加载每一行，如下所示：

  dictionaryData = [responseString JSONValue]; 
 switch（indexPath.row）
 {
 case 0：
 {
 NSString * name = [NSString stringWithFormat：@％@：％@％@ @Name，[dictionaryData valueForKey：@firstName]，[dictionaryData valueForKey：@lastName]]; 
 cell.textLabel.text = name; 
 break; 
} 
 case 1：
 {
 NSString * email = [NSString stringWithFormat：@％@：％@，@Email，[dictionaryData valueForKey：@] email ]]; 
 cell.textLabel.text = email; } 
 break; 
  

有8行，我必须写8个开关盒，我认为使我的方法太长。
任何人都可以告诉我，有任何替代switch语句。

解决方案

在某些情况下，一个对象 b

更新

我详细说明了如何以这种方式在代码中替换switch语句

I am doing a project in which I am loading a table view with JSON data from an asynchronous connection. I am using a switch statement to load each row, like so:

dictionaryData = [responseString JSONValue]; 
switch (indexPath.row) 
{ 
    case 0: 
    { 
        NSString *name = [NSString stringWithFormat:@"%@ : %@ %@",@"Name",[dictionaryData      valueForKey:@"firstName"],[dictionaryData valueForKey:@"lastName"]]; 
        cell.textLabel.text = name;
        break; 
    }
    case 1: 
    { 
        NSString *email = [NSString stringWithFormat:@"%@ : %@",@"Email",[dictionaryData   valueForKey:@"email"]]; 
        cell.textLabel.text = email; } 
        break;

There are 8 rows and i have to write 8 switch cases , which i think makes my method too long. Can anyone tell me that is there any alternative to switch statements.

解决方案

In some cases an object would be a better alternative.

Update

I detailed how one might approach this (in an overengineered manner) here: Replace switch statement in the code

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