尝试复制 GMSPlacesClient：autoCompleteQuery 函数以手动填充 UITableView

Question

我当前使用 Google Places API 端点的地址填充 tableView 的代码如下：

但是，我想创建一个自定义客户端来处理由 Places 提供的 autoCompleteQuery 手动处理的功能。我假设这需要再次解析地址 JSON 并进行迭代，然后将其存储在数组中。如果您有解决方案，请告诉我。注释代码完美运行，我正在尝试手动实现相同的结果。

func searchBar(searchBar: UISearchBar, textDidChange searchText: String){

//        let mapsClient = GMSPlacesClient()
//        mapsClient.autocompleteQuery(searchText, bounds: nil, filter: nil {(results, error: NSError?) in
//            
//            self.resultsArray.removeAll()
//            
//            if results == nil{
//                return
//            }
//            
//            for result in results! {
//            
//                if let result = result as GMSAutocompletePrediction! {
//                    self.resultsArray.append(result.attributedFullText.string)
//                }
//            }
//            
//            self.searchResultsClient.reloadDataWithArray(self.resultsArray)
//        }

    gmsFetcher?.sourceTextHasChanged(searchText)

    self.searchResultsClient.reloadDataWithArray(self.resultsArray)
    print(resultsArray)
}


override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}
}

extension MainMapViewController: GMSAutocompleteFetcherDelegate {
func didAutocompleteWithPredictions(predictions: [GMSAutocompletePrediction]) {

    self.resultsArray.count + 1

    let resultsStr = NSMutableString()
    for prediction in predictions {
        resultsStr.appendFormat("%@\n", prediction.attributedPrimaryText)
    }

    resultText?.text = resultsStr as String
    self.resultsArray.append(resultsStr as String)
    self.searchResultsClient.reloadDataWithArray(self.resultsArray)
}
    func didFailAutocompleteWithError(error: NSError) {
        resultText?.text = error.localizedDescription
    }
}

Answer 1

您可以使用 GMSAutocompleteFetcher，它将 autocompleteQuery 方法包装在 GMSPlacesClient 上。提取器限制请求，只返回最近输入的搜索文本的结果，不提供 UI 元素。

实现 GMSAutocompleteFetcher 的步骤：

Implement the GMSAutocompleteFetcherDelegate protocol.

Create a GMSAutocompleteFetcher object.

Call sourceTextHasChanged on the fetcher as the user types.

Handle predictions and errors using the didAutcompleteWithPredictions and didFailAutocompleteWithError protocol methods.

可以在 Use the fetcher.

中找到演示使用提取器的实施步骤的示例代码

Answer 2

已解决：以下是我如何最终解决从 UISearchBar 更新文本时使用自动完成更新 UITableView 行的问题。

func searchBar(searchBar: UISearchBar, textDidChange searchText: String){

    self.resultsArray.removeAll()
    gmsFetcher?.sourceTextHasChanged(searchText)
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
    }
}

//Implement GMSAutoCompleteFetcherDelegate protocol to handle custom string prediction
extension MainMapViewController: GMSAutocompleteFetcherDelegate {
    func didAutocompleteWithPredictions(predictions: [GMSAutocompletePrediction]) {

    for prediction in predictions {

        if let prediction = prediction as GMSAutocompletePrediction!{
        self.resultsArray.append(prediction.attributedFullText.string)
        }
    }

    self.searchResultsTable.reloadDataWithArray(self.resultsArray)
    print(resultsArray)
    }
    func didFailAutocompleteWithError(error: NSError) {
        resultText?.text = error.localizedDescription
    }
}

尝试复制 GMSPlacesClient：autoCompleteQuery 函数以手动填充 UITableView

Attempting to replicate GMSPlacesClient: autoCompleteQuery function to populate a UITableView manually

ios

swift

google-maps

autocomplete

google-places-api