如何使用swift用两个不同的数组填充tableview中的两个部分?

I have two arrays Data1 and Data2 and I want to populate the data within each of these (they contain strings) into a tableview in two different sections. The first section should have a heading "Some Data 1" and the second section should be titled "KickAss".

我有两个数组Data1和Data2，我想将每个数组(它们包含字符串)中的数据填充到两个不同部分的tableview中。第一部分应该有标题“Some Data 1”，第二部分应该有标题“KickAss”。

I have both sections populating with data from the first array (but with no headings either).

我有两个部分都使用了第一个数组中的数据(但也没有标题)。

Here is my code so far:

这是我目前的代码:

override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        return 2
    }

override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        var rowCount = 0
        if section == 0 {
            rowCount = Data1.count
        }
        if section == 1 {
            rowCount = Data2.count
        }
        return rowCount
    }
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as UITableViewCell
        let ip = indexPath
        cell.textLabel?.text = Data1[ip.row] as String
        return cell
    }

in the cellForRowAtIndexPath method, is it possible for me to identify the section somehow like I did in the numberOfRowsInSection method? Also, how do I give titles to each section? Thanks

在cellForRowAtIndexPath方法中，我是否可以像在numberOfRowsInSection方法中那样以某种方式识别部分?另外，我如何给每个部分赋予标题?谢谢

3 个解决方案

#1

You can determine which section you are in by looking at indexPath.section. To specify the titles, override the function

您可以通过查看indexPath.section来确定您所在的部分。要指定标题，请重写函数

func tableView(tableView: UITableView!, titleForHeaderInSection section: Int) -> String!

#2

TableView Cells

TableView细胞

You could use a multidimensional array. For example:

可以使用多维数组。例如:

let data = [["0,0", "0,1", "0,2"], ["1,0", "1,1", "1,2"]]

For the number of sections use:

对于使用的节数:

override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    return data.count
}

Then, to specify the number of rows in each section use:

然后，要指定每个部分的行数，请使用:

override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return data[section].count
}

Finally, you need to setup your cells:

最后，您需要设置单元格:

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cellText = data[indexPath.section][indexPath.row]

    //  Now do whatever you were going to do with the title.
}

TableView Headers

TableView头

You could again use an array, but with just one dimension this time:

你可以再次使用数组，但这一次只有一个维度:

let headerTitles = ["Some Data 1", "KickAss"]

Now to set the titles for the sections:

现在为章节设置标题:

override func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
    if section < headerTitles.count {
        return headerTitles[section]
    }

    return nil
}

The code above checks to see there's a title for that section and returns it, otherwise nil is returned. There won't be a title if the number of titles in headerTitles is smaller than the number of arrays in data.

上面的代码检查是否有该部分的标题并返回它，否则返回nil。如果标题中的标题数量小于数据中的数组数量，就不会有标题。

The Result

结果

#3

You could create a Struct to hold the data that belongs to a section, as an alternative to my previous answer. For example:

您可以创建一个Struct来保存属于某个节的数据，作为对我之前答案的替代。例如:

struct SectionData {
    let title: String
    let data : [String]

    var numberOfItems: Int {
        return data.count
    }

    subscript(index: Int) -> String {
        return data[index]
    }
}

extension SectionData {
    //  Putting a new init method here means we can
    //  keep the original, memberwise initaliser.
    init(title: String, data: String...) {
        self.title = title
        self.data  = data
    }
}

Now in your view controller you could setup your section data like so:

现在在你的视图控制器中你可以像这样设置你的部分数据:

lazy var mySections: [SectionData] = {
    let section1 = SectionData(title: "Some Data 1", data: "0, 1", "0, 2", "0, 3")
    let section2 = SectionData(title: "KickAss", data: "1, 0", "1, 1", "1, 2")

    return [section1, section2]
}()

Section Headers

节标题

override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    return mySections.count
}

override func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
    return mySections[section].title
}

Compared to my previous answer, you now don't have to worry about matching the number of headerTitles to the number of arrays in data.

与我之前的答案相比，现在您不必担心头标题的数量与数据中的数组数量的匹配。

TableView Cells

TableView细胞

override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return mySections[section].numberOfItems
}

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cellTitle = mySections[indexPath.section][indexPath.row]

    let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! UITableViewCell
    cell.textLabel?.text = cellTitle

    return cell
}