用正则表达式拆分Android字符串以接收LatLng

Question

我有以下字符串：

lat/lng: (51.07459833333334,16.962598333333336)|lat/lng: (51.074299999999994,16.9628)|lat/lng: (51.07749999999999,16.9614)|lat/lng: (51.07770000000001,16.960998333333336)|

我尝试将其转换为LatLng Array。如何拆分这个？

Answer 1

试试这个：

ids <- as.data.frame(mongoDf$find( fields = '{"Complaint ID":1, "Date received":1, "_id":0}'))

以下是虚拟 // Your string String strMain = "lat/lng: (51.07459833333334,16.962598333333336)|lat/lng: (51.074299999999994,16.9628)|lat/lng: (51.07749999999999,16.9614)|lat/lng: (51.07770000000001,16.960998333333336)|"; strMain = strMain.replace("lat/lng: (", ""); strMain = strMain.replace(")", ""); String[] strLatLong = strMain.split("\\|"); List<LatLong> latLongList = new ArrayList<LatLong>(); for (String item: strLatLong) { String[] str = item.split(","); double latitude = Double.parseDouble(str[0]); double longitude = Double.parseDouble(str[1]); latLongList.add(new LatLong(latitude, longitude)); } // Print List for (LatLong latLong: latLongList) { Log.d("LatLong", "Latitude: " + String.valueOf(latLong.getLatitude()) + "\nLongitude: " + String.valueOf(latLong.getLongitude())); } 类：

LatLong

<强>输出：

public class LatLong {

    double latitude;
    double longitude;

    public LatLong(double latitude, double longitude) {
        this.latitude = latitude;
        this.longitude = longitude;
    }

    public double getLatitude() {
        return latitude;
    }

    public void setLatitude(double latitude) {
        this.latitude = latitude;
    }

    public double getLongitude() {
        return longitude;
    }

    public void setLongitude(double longitude) {
        this.longitude = longitude;
    }
}

Answer 2

String input = "lat/lng: (51.07459833333334,16.962598333333336)|lat/lng: (51.074299999999994,16.9628)|lat/lng: (51.07749999999999,16.9614)|lat/lng: (51.07770000000001,16.960998333333336)|";
List<LatLng> list = new ArrayList<>();

String pattern = "lat/lng: \\((.*?),(.*?)\\)\\|";
Pattern r = Pattern.compile(pattern);
Matcher m = r.matcher(input);
int i=0;
while (m.find()) {
    double latitude = Double.parseDouble(m.group(1));
    double longitude = Double.parseDouble(m.group(2));
    list.add(new LatLng(latitude, longitude));
}

// now convert the list to an array
LatLng[] array = list.toArray(new LatLng[0]);

这是一个演示的链接，至少显示正则表达式逻辑正常工作：

Rextester