說明

//共享資料 —-> 特殊的PC (本地伺服器,遠端伺服器)

//C/S

//IP 10.20.157.135 —> 域名

//14.215.177.38 –>

//區分資源 —> URL

//ss3.bdstatic.com/70cFv8Sh_Q1YnxGkpoWK1HF6hhy/it/u=4271053251,2424464488&fm=116&gp=0.jpg

//URL —>
//C/S —> http https –> safe 身份驗證 8080

//ftp:// —> 共享

//file 本地檔案

//資料上傳 —> usrname usrpasswd
//協議名://域名(IP):埠/路徑?引數(引數名=引數值)

獲取網路圖片並儲存

• (void)viewDidLoad {
  [super viewDidLoad];
  // Do any additional setup after loading the view, typically from a nib.

  //xocde7 —> http

  //URL
  //127.0.0.1 (本機地址) —>
  NSString *urlStr = @”http://127.0.0.1/net/text“;

  //NSURL —> URL 物件
  NSURL *url = [[NSURL alloc] initWithString:urlStr];

  NSError *err = nil;
  //根據url物件取得資源
  NSString *webString = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:&err];
  NSLog(@”%@”,webString);

  NSData *imageData = [NSData dataWithContentsOfURL:imageURL];
  UIImageView *iamgeView = [[UIImageView alloc] initWithFrame:self.view.bounds];

  //載入圖片對應的二進位制資料
  iamgeView.image = [UIImage imageWithData:imageData];

  [self.view addSubview:iamgeView];

  //
  //儲存圖片
  //1.要儲存圖片
  //2.儲存成功回撥的物件
  //3.物件的方法
  //4.contextInfo 物件的方法傳引數
  UIImageWriteToSavedPhotosAlbum(iamgeView.image, self, @selector(image:didFinishSavingWithError:contextInfo:), nil);
  }

//回撥方法
- (void)image:(UIImage )image didFinishSavingWithError:(NSError )error contextInfo:(void *)contextInfo
{
if(error == nil)
{
NSLog(@”儲存成功”);
//UIAlertView
}
else
{
NSLog(@”儲存失敗 —> %@”,error);
}
}