我使用NSUrlconnection来呼叫api,但现在我也从api接收图像,所以我不知道如何加载图像&保存到手机本地内存,因为这些图像进一步用于应用程序。请帮帮我。如何使用&从本地保存显示图像。我使用下面的函数来加载图像,但NSURLSession.sharedSession()不会进入队列中。如何使用NSURlConnection使用NSURlConnection下载图像以保存在手机缓存中
func saveImage(url:NSString,image_name1:NSString)
{
NSURLSession.sharedSession().dataTaskWithURL(NSURL(string: url as String)!, completionHandler: { (data, response, error) -> Void in
if error != nil {
print(error)
return
}
dispatch_async(dispatch_get_main_queue(), {() -> Void in
let image = UIImage(data: data!)
var paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)
let documentsDirectory = paths[0]
let path = NSURL(fileURLWithPath: documentsDirectory).URLByAppendingPathComponent(image_name1 as String)!.absoluteString
print(" file path is \(path)")
let data = UIImagePNGRepresentation(image!)
data!.writeToFile(path!, atomically: true)
})
}).resume()
}
'NSURLConnection'已经过时,你应该用'NSURLSession' – Rajat
兄弟去,但它在我的代码 –