Question

在我从重复的问题中得到任何违规行为之前，我只想说我道歉并且我一直在寻找某种方法来解决这个问题一天，而且我还没有接近任何地方我想去的地方。

所以，我想将一个UITableView行从一个部分移动到另一个部分。所以，例如，我有一个食谱，在＆＃34;零食＆＃34;部分，我想把它移到＆＃34;早餐＆＃34;部分。我能够移动一次，但是当我再次移动它时，我得到了Array Index Out Of Bounds错误。

我能够在每个部分内移动行而不会崩溃，但是在部分之间移动是我被困住的地方。

修改：错误消息为：致命错误：索引超出范围，并且在＆＃34;崩溃时让食谱名称跳转到recipesToBeMoved [rowNumberFrom] ＆＃34;

另外，为了使这一点更加清晰，我有4个部分：＆＃34;早餐＆＃34;，＆＃34;晚餐＆＃34;，＆＃34;午餐＆＃34;，＆＃34;零食＆＃34; - ＆GT;这些是来自savedRecipes plist的键（我存储了Yummly API中的所有配方信息）。

到目前为止，这是我的recipesArray看起来像一个条目：

[["Strawberry Jalapeno Pico De Gallo","4","https://lh3.googleusercontent.com/2yZhMGgfnREb2OPcEpzKjHogS2hTClhcRr3OVfp6batG_m4iRWI1cKBKixfv089_yrgblDTKZlq3PFtbPvSWeQ=s90-c", "0g", "0g", "0g", "0g", "No Data", "0mg", "0mg", "26g", "7g", "11g", "3g", "8%", "216%", "9%", "0%", "https://lh3.googleusercontent.com/naElDNklXjL9lxhL2C198_IUshv9aA82LEL_2ZFl3ATAL3m4dRDDTo9DpqeCxBCdR_R6061olbZ2B4LYqh6jRQ=s360", "124", "10 min", "1", "http://www.rhubarbarians.com/strawberry-jalapeno-pico-de-gallo/"]]

这就是recipeNameToMove的样子：

["Strawberry Jalapeno Pico De Gallo", "4", "https://lh3.googleusercontent.com/2yZhMGgfnREb2OPcEpzKjHogS2hTClhcRr3OVfp6batG_m4iRWI1cKBKixfv089_yrgblDTKZlq3PFtbPvSWeQ=s90-c", "0g", "0g", "0g", "0g", "No Data", "0mg", "0mg", "26g", "7g", "11g", "3g", "8%", "216%", "9%", "0%", "https://lh3.googleusercontent.com/naElDNklXjL9lxhL2C198_IUshv9aA82LEL_2ZFl3ATAL3m4dRDDTo9DpqeCxBCdR_R6061olbZ2B4LYqh6jRQ=s360", "124", "10 min", "1", "http://www.rhubarbarians.com/strawberry-jalapeno-pico-de-gallo/"]

这是我的moveRowAtIndexPath方法的代码：

//---------------------------
// Movement of Row Attempted
//---------------------------

func tableView(tableView: UITableView, moveRowAtIndexPath fromIndexPath: NSIndexPath, toIndexPath: NSIndexPath)
{
    // Obtain the section of the recipe to be deleted

    let sectionOfRecipe = sectionTypeArray[fromIndexPath.section]

    // Obtain the list of recipes from each section
    let recipes: AnyObject? = applicationDelegate.savedRecipesDict[sectionOfRecipe]

    // Typecast the anyobject to a swift array
    var recipesArray = recipes as! [[String]]

    // Row number to move FROM
    let rowNumberFrom = fromIndexPath.row

    // Row number to move TO
    let rowNumberTo = toIndexPath.row

    // Section number to move FROM
    let sectionNumberFrom = fromIndexPath.section

    // Section number to move TO
    let sectionNumberTo = toIndexPath.section

    // If the recipe cells are moving outside of their sections
    if sectionNumberFrom != sectionNumberTo
    {
        // Where the application crashes on the second move
        let recipeNameToMove = recipesArray[rowNumberFrom]

        // If movement is from lower part of the list to upper part
        if sectionNumberFrom > sectionNumberTo
        {
            recipesToBeMoved.insert(recipeNameToMove, atIndex: rowNumberTo)
            recipesToBeMoved.removeAtIndex(rowNumberFrom + 1)
        }
        else
        {
            // Movement is from upper part to lower part
            recipesToBeMoved.insert(recipeNameToMove, atIndex: rowNumberTo + 1)
            recipesToBeMoved.removeAtIndex(rowNumberFrom)
        }

        print("Moving out of sections")
        print(rowNumberFrom)

        applicationDelegate.savedRecipesDict.setValue(recipesToBeMoved, forKey: sectionOfRecipe)


    }


}

这就是我如何得到我的部分（即早餐，午餐等）

 override func viewDidLoad() {
    super.viewDidLoad()

    // Adding in rounded corners to the buttons
    logCaloriesButton.layer.cornerRadius = 8;
    recommendFoodButton.layer.cornerRadius = 8;

    sectionTypeArray = applicationDelegate.savedRecipesDict.allKeys as! [String]

    // Sort the selection names within itself in alphabetical order
    sectionTypeArray.sortInPlace { $0 < $1 }

}

非常感谢你的时间！：）

在部分之间移动UITableViewCell行会导致我的应用程序崩溃

0 个答案: