如何自定义 UITableView 中的搜索功能
How to customise the search feature in UITablView
在搜索栏结果中,我想先使用 AnchoredSearch 选项进行比较,如果我没有在其中获得值,那么我想仅使用 CaseInsensitiveSearch 选项进行比较。
我在下面附上了我的搜索栏代码。
func searchBar(searchBar: UISearchBar, textDidChange searchText: String) {
self.array = self.getUniqArrayData(self.array)
filteredTableData = array.filter({ (text) -> Bool in
let tmp: NSString = text
var range = tmp.rangeOfString(searchText, options: (NSStringCompareOptions.AnchoredSearch | NSStringCompareOptions.CaseInsensitiveSearch ))
return range.location != NSNotFound
})
if(searchText == ""){
searchActive = false;
} else {
searchActive = true;
}
self.xyztable.reloadData()
}
请告诉我如何先使用 AnchoredSearch 进行过滤,如果我没有在其中找到任何内容,然后使用 CaseInsensitiveSearch 选项进行搜索。
任何示例或示例代码或链接都会有所帮助
这是简单的排序。我已经清理了一些东西; tmp 是不必要的。
// I don't think you intend to overwrite the underlying data just because
// the user did a search. Did you mean to do a local variable:
let uniqArray = self.getUniqArrayData(self.array)
let tryAnchored = uniqArray.filter { (text) -> Bool in
var range = text.rangeOfString(searchText, options: .AnchoredSearch)
return range.location != NSNotFound
}
if tryAnchored.count > 0 {
self.filteredTableData = tryAnchored
}
else {
// maybe have a local 'let' here too, and if this one also comes up
// empty, don't reload the table data at all?
self.filteredTableData = uniqArray.filter { (text) -> Bool in
var range = text.rangeOfString(searchText, options: .CaseInsensitiveSearch)
return range.location != NSNotFound
}
}
在搜索栏结果中,我想先使用 AnchoredSearch 选项进行比较,如果我没有在其中获得值,那么我想仅使用 CaseInsensitiveSearch 选项进行比较。
我在下面附上了我的搜索栏代码。
func searchBar(searchBar: UISearchBar, textDidChange searchText: String) {
self.array = self.getUniqArrayData(self.array)
filteredTableData = array.filter({ (text) -> Bool in
let tmp: NSString = text
var range = tmp.rangeOfString(searchText, options: (NSStringCompareOptions.AnchoredSearch | NSStringCompareOptions.CaseInsensitiveSearch ))
return range.location != NSNotFound
})
if(searchText == ""){
searchActive = false;
} else {
searchActive = true;
}
self.xyztable.reloadData()
}
请告诉我如何先使用 AnchoredSearch 进行过滤,如果我没有在其中找到任何内容,然后使用 CaseInsensitiveSearch 选项进行搜索。
任何示例或示例代码或链接都会有所帮助
这是简单的排序。我已经清理了一些东西; tmp 是不必要的。
// I don't think you intend to overwrite the underlying data just because
// the user did a search. Did you mean to do a local variable:
let uniqArray = self.getUniqArrayData(self.array)
let tryAnchored = uniqArray.filter { (text) -> Bool in
var range = text.rangeOfString(searchText, options: .AnchoredSearch)
return range.location != NSNotFound
}
if tryAnchored.count > 0 {
self.filteredTableData = tryAnchored
}
else {
// maybe have a local 'let' here too, and if this one also comes up
// empty, don't reload the table data at all?
self.filteredTableData = uniqArray.filter { (text) -> Bool in
var range = text.rangeOfString(searchText, options: .CaseInsensitiveSearch)
return range.location != NSNotFound
}
}