Caching a UIWebView - iphone

Question

I am very new to iphone development and i am trying to get a web view to cache onto the device so that it will sty there even when the application is closed and then reload the data when the application starts again. I would also like it to reload the data in the cache every 2 weeks.
Many Thanks,
Thomas

Answer 1

through a lot of searching around and asking friends i managed to find the code and though that i would share it with everyone
Objective-C
- (void) cacheFile
{
//Create the file/directory pointer for the storage of the cache.
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
self.dataPath = [[paths objectAtIndex:0] stringByAppendingPathComponent:#"cache.html"];
//Check to see if a file exists a the location
if ([[NSFileManager defaultManager] fileExistsAtPath:dataPath]) {
//Code for customising when the cache reloads would go here.
}
else
{
//If no file exists write the html cache to it
//Download and write to file
NSURL *cacheUrl = [NSURL URLWithString:#"INSERT WEB URL HERE"];
NSData *cacheUrlData = [NSData dataWithContentsOfURL:cacheUrl];
[cacheUrlData writeToFile:dataPath atomically:YES];
}
//Run the load web view function.
[self loadWebView];
}
- (void) loadWebView
{
//Load up the web view from the cache.
[WebView loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:dataPath]]];
}
Swift 3
func cacheFile() {
//Create the file/directory pointer for the storage of the cache.
let paths = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)
guard let dataPath = paths.first?.appending("cache.html") else {
return
}
//Check to see if a file exists a the location
if FileManager.default.fileExists(atPath: dataPath) {
//Code for customising when the cache reloads would go here.
} else if let cacheUrl = URL(string: "INSERT WEB URL HERE") {
//If no file exists write the html cache to it
//Download and write to file
do {
let cacheUrlData = try Data(contentsOf: cacheUrl)
try cacheUrlData.write(to: URL(fileURLWithPath: dataPath), options: Data.WritingOptions.atomic)
} catch {
print("Problem with cacheUrlData")
}
}
//Run the load web view function.
loadWebView(dataPath: dataPath)
}
func loadWebView(dataPath: String) {
webView.loadRequest(URLRequest(url: URL(fileURLWithPath: dataPath)))
}