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ViewController.swift
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ViewController.swift
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//
// ViewController.swift
// Swift Weather
//
// Created by Jake Lin on 4/06/2014.
// Copyright (c) 2014 rushjet. All rights reserved.
//
import UIKit
import CoreLocation
class ViewController: UIViewController, CLLocationManagerDelegate {
let locationManager:CLLocationManager = CLLocationManager()
var background = UIImage(named: "background.png")
@IBOutlet var loadingIndicator : UIActivityIndicatorView = nil
@IBOutlet var icon : UIImageView
@IBOutlet var temperature : UILabel
@IBOutlet var loading : UILabel
@IBOutlet var location : UILabel
override func viewDidLoad() {
super.viewDidLoad()
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
self.loadingIndicator.startAnimating()
self.view.backgroundColor = UIColor(patternImage: background)
let singleFingerTap = UITapGestureRecognizer(target: self, action: "handleSingleTap:")
self.view.addGestureRecognizer(singleFingerTap)
if ( ios8() ) {
locationManager.requestAlwaysAuthorization()
}
locationManager.startUpdatingLocation()
}
func handleSingleTap(recognizer: UITapGestureRecognizer) {
locationManager.startUpdatingLocation()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func updateWeatherInfo(latitude: CLLocationDegrees, longitude: CLLocationDegrees) {
let manager = AFHTTPRequestOperationManager()
let url = "http://api.openweathermap.org/data/2.5/weather"
println(url)
let params = ["lat":latitude, "lon":longitude, "cnt":0]
println(params)
manager.GET(url,
parameters: params,
success: { (operation: AFHTTPRequestOperation!,
responseObject: AnyObject!) in
println("JSON: " + responseObject.description!)
self.updateUISuccess(responseObject as NSDictionary!)
},
failure: { (operation: AFHTTPRequestOperation!,
error: NSError!) in
println("Error: " + error.localizedDescription)
self.loading.text = "Internet appears down!"
})
}
func updateUISuccess(jsonResult: NSDictionary!) {
self.loading.text = nil
self.loadingIndicator.hidden = true
self.loadingIndicator.stopAnimating()
if let tempResult = (jsonResult["main"]?["temp"]? as? Double) {
// If we can get the temperature from JSON correctly, we assume the rest of JSON is correct.
var temperature: Double
if (jsonResult["sys"]?["country"]? as String == "US") {
// Convert temperature to Fahrenheit if user is within the US
temperature = round(((tempResult - 273.15) * 1.8) + 32)
}
else {
// Otherwise, convert temperature to Celsius
temperature = round(tempResult - 273.15)
}
// Is it a bug of Xcode 6? can not set the font size in IB.
self.temperature.font = UIFont.boldSystemFontOfSize(60)
self.temperature.text = "\(temperature)°"
var name = jsonResult["name"]? as String
self.location.font = UIFont.boldSystemFontOfSize(25)
self.location.text = "\(name)"
var condition = (jsonResult["weather"]? as NSArray)[0]?["id"]? as Int
var sunrise = jsonResult["sys"]?["sunrise"]? as Double
var sunset = jsonResult["sys"]?["sunset"]? as Double
var nightTime = false
var now = NSDate().timeIntervalSince1970
// println(nowAsLong)
if (now < sunrise || now > sunset) {
nightTime = true
}
self.updateWeatherIcon(condition, nightTime: nightTime)
}
else {
self.loading.text = "Weather info is not available!"
}
}
// Converts a Weather Condition into one of our icons.
// Refer to: http://bugs.openweathermap.org/projects/api/wiki/Weather_Condition_Codes
func updateWeatherIcon(condition: Int, nightTime: Bool) {
// Thunderstorm
if (condition < 300) {
if nightTime {
self.icon.image = UIImage(named: "tstorm1_night")
} else {
self.icon.image = UIImage(named: "tstorm1")
}
}
// Drizzle
else if (condition < 500) {
self.icon.image = UIImage(named: "light_rain")
}
// Rain / Freezing rain / Shower rain
else if (condition < 600) {
self.icon.image = UIImage(named: "shower3")
}
// Snow
else if (condition < 700) {
self.icon.image = UIImage(named: "snow4")
}
// Fog / Mist / Haze / etc.
else if (condition < 771) {
if nightTime {
self.icon.image = UIImage(named: "fog_night")
} else {
self.icon.image = UIImage(named: "fog")
}
}
// Tornado / Squalls
else if (condition < 800) {
self.icon.image = UIImage(named: "tstorm3")
}
// Sky is clear
else if (condition == 800) {
if (nightTime){
self.icon.image = UIImage(named: "sunny_night") // sunny night?
}
else {
self.icon.image = UIImage(named: "sunny")
}
}
// few / scattered / broken clouds
else if (condition < 804) {
if (nightTime){
self.icon.image = UIImage(named: "cloudy2_night")
}
else{
self.icon.image = UIImage(named: "cloudy2")
}
}
// overcast clouds
else if (condition == 804) {
self.icon.image = UIImage(named: "overcast")
}
// Extreme
else if ((condition >= 900 && condition < 903) || (condition > 904 && condition < 1000)) {
self.icon.image = UIImage(named: "tstorm3")
}
// Cold
else if (condition == 903) {
self.icon.image = UIImage(named: "snow5")
}
// Hot
else if (condition == 904) {
self.icon.image = UIImage(named: "sunny")
}
// Weather condition is not available
else {
self.icon.image = UIImage(named: "dunno")
}
}
/*
func finishLaunch() {
//ask for authorization
let status = CLLocationManager.authorizationStatus()
if(status == CLAuthorizationStatus.NotDetermined) {
self.locationManager.requestAlwaysAuthorization();
}
else {
locationManager.startUpdatingLocation()
}
}
func locationManager(manager: CLLocationManager!, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
if(status == CLAuthorizationStatus.NotDetermined) {
println("Auth status unkown still!");
}
locationManager.startUpdatingLocation()
}
*/
/*
iOS 8 Utility
*/
func ios8() -> Bool {
println("iOS " + UIDevice.currentDevice().systemVersion)
// There is a problem if Apple upgrades iOS version to 8.1 or something else.
if ( UIDevice.currentDevice().systemVersion == "8.0" ) {
return true
} else {
return false
}
}
//CLLocationManagerDelegate
func locationManager(manager: CLLocationManager!, didUpdateLocations locations: AnyObject[]!) {
var location:CLLocation = locations[locations.count-1] as CLLocation
if (location.horizontalAccuracy > 0) {
self.locationManager.stopUpdatingLocation()
println(location.coordinate)
updateWeatherInfo(location.coordinate.latitude, longitude: location.coordinate.longitude)
}
}
func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!) {
println(error)
self.loading.text = "Can't get your location!"
}
}