如何使用 ios parse.com 将坐标保存为 PFGeopoint
how to save the co-ordinate as PFGeopoint with ios parse.com
我想使用文本字段添加用户的经度和纬度,并将该值传入 PFGeoPoint.But 文本字段值在不被视为 PFGeoPoint 的字符串中。我的代码是:
@IBOutlet weak var latitue_filed: UITextField!
@IBOutlet weak var longitudead: UITextField!
let lati : = (latitue_filed.text as? PFGeoPoint)!
let lon : = (longitudead.text as? PFGeoPoint)!
let myGeoPoint = PFGeoPoint(latitude: lat, longitude: lon)
posts["location"] = myGeoPoint
posts.saveInBackgroundWithBlock {
(success: Bool, error: NSError?) -> Void in
if (success) {
// The object has been saved.
} else {
// There was a problem, check error.description
}
}
posts.saveInBackground()`
这里 latitue_filed 和 longitudead 是文本字段。如何在 PfGeopint 中传递文本字段值。
根据 documentation,PFGeoPoint
实际上是一个 PFObject
,它使用双精度 latitude
和 longitude
(它们是度数)并将它们嵌入在一起。您当前正在将文本字段中的字符串值转换为单个 PFGeoPoints
。将字符串值转换为 double 并使用文档中描述的方法创建 PFGeoPoint
。
let lati = Double(latitue_filed.text)
let lon = Double(longitudead.text)
let myGeoPoint = PFGeoPoint(latitude: lat, longitude: lon)
posts["location"] = myGeoPoint
posts.saveInBackgroundWithBlock {
(success: Bool, error: NSError?) -> Void in
if (success) {
// The object has been saved.
} else {
// There was a problem, check error.description
}
}
我想使用文本字段添加用户的经度和纬度,并将该值传入 PFGeoPoint.But 文本字段值在不被视为 PFGeoPoint 的字符串中。我的代码是:
@IBOutlet weak var latitue_filed: UITextField!
@IBOutlet weak var longitudead: UITextField!
let lati : = (latitue_filed.text as? PFGeoPoint)!
let lon : = (longitudead.text as? PFGeoPoint)!
let myGeoPoint = PFGeoPoint(latitude: lat, longitude: lon)
posts["location"] = myGeoPoint
posts.saveInBackgroundWithBlock {
(success: Bool, error: NSError?) -> Void in
if (success) {
// The object has been saved.
} else {
// There was a problem, check error.description
}
}
posts.saveInBackground()`
这里 latitue_filed 和 longitudead 是文本字段。如何在 PfGeopint 中传递文本字段值。
根据 documentation,PFGeoPoint
实际上是一个 PFObject
,它使用双精度 latitude
和 longitude
(它们是度数)并将它们嵌入在一起。您当前正在将文本字段中的字符串值转换为单个 PFGeoPoints
。将字符串值转换为 double 并使用文档中描述的方法创建 PFGeoPoint
。
let lati = Double(latitue_filed.text)
let lon = Double(longitudead.text)
let myGeoPoint = PFGeoPoint(latitude: lat, longitude: lon)
posts["location"] = myGeoPoint
posts.saveInBackgroundWithBlock {
(success: Bool, error: NSError?) -> Void in
if (success) {
// The object has been saved.
} else {
// There was a problem, check error.description
}
}