如何在Swift中从JSON中获取密钥? [英] How to fetch the key from JSON in Swift?

问题描述

我正在Swift中进行JSON解析.

I am working on JSON parsing in Swift.

var results = [String:[AnyObject]]()

上面的results具有如下所示的数据，

The above results is having the data as shown below,

"fruit" = ( "apple", "orange" );

"fruit" = ( "apple", "orange" );

此处，数据在运行时动态添加.我所需要做的就是获取密钥并将它们作为标题显示在表格视图中.

Here, data is appended dynamically during runtime. All I need is to get the keys and display them in table view as header.

如何快速从results获取key?

推荐答案

我已经使用过，

var results = [String:Array<DataModel>]

哪里

class DataModel {
    var name: String?     
}

并获取键和值，

for i in 0...(results.length-1){
    // To print the results keys
    print(results.keys[results.startIndex.advancedBy(i)])
    // To get value from that key
    let valueFromKeyCount = (results[results.keys[results.startIndex.advancedBy(i)]] as Array<DataModel>).count
    for j in 0...(valueFromKeyCount-1) {
         let dm = results[results.keys[results.startIndex.advancedBy(i)]][j] as DataModel
         print(dm.name) 
    }
}

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