Swift filterContentForSearchText

Question

下面的Swift searchController代码运行良好。

func filterContentForSearchText(searchText: String) {
    searchResults = drugs.filter({ ( drugs: Drug) -> Bool in
    let nameMatch = drugs.name.rangeOfString(searchText, options:
    NSStringCompareOptions.CaseInsensitiveSearch)
 return nameMatch != nil
  })
}

上面的Swift searchController.textSearch适用于Drug.name。该数组的结构为：

struct Drug {
  let name:String
  let tumor:String
  let targets:String
  let dosing:String
  let note:String
  let chart:String
}

数组的某些行定义为：

Drug(name:"ABT-199 (Tivantinib)", tumor:"CLL Lymphoma", targets:"BCL-2, BCL2", dosing:"", note:"", chart:""), Drug(name:"Adcetris (Brentuximab vedotin)", tumor:"Anaplastic Large Cell Lymphoma Hodgkin's ALCL", targets:"[CD30]", dosing:"", note:"", chart:""), Drug(name:"Afinitor (Everolimus)", tumor:"Kidney Renal Hypernephroma Breast Brain Subependymal Giant Cell Astrocytoma (SEGA) tuberous sclerosis neuroendocrine pancreas (PNET)", targets:"[mTOR1][FRAP1]", dosing:"", note:"", chart:"")

我添加了一个只有三个按钮的范围栏。我对如何在Swift中更改上述内容感到困惑：

func filterContentForSearchText(searchText: String)，以便用户可以从scopeButtonTitles = ["Drugs", "Tumor", "Target"]中选择感兴趣的范围？

任何帮助都是非常感谢的。

Answer 1

看看这篇来自Raywenderlich的教程，它解释了如何使用scope。我正在复制这个代码片段，这可能会对你有所帮助。

http://www.raywenderlich.com/76519/add-table-view-search-swift

func filterContentForSearchText(searchText: String) {
  // Filter the array using the filter method
  self.filteredCandies = self.candies.filter({( candy: Candy) -> Bool in
    let categoryMatch = (scope == "All") || (candy.category == scope)
    let stringMatch = candy.name.rangeOfString(searchText)
    return categoryMatch && (stringMatch != nil)
  })
}