一:NSURLSessionDownloadTask:实现文件下载:无法监听进度 #import "ViewController.h" @interface ViewController () @end @implementation ViewController -(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event { [self download]; } //优点:不需要担心…

一:小文件下载 #import "ViewController.h" @interface ViewController ()<NSURLConnectionDataDelegate> /** 注释 */ @property (nonatomic, strong) NSMutableData *fileData; @property (nonatomic, assign) NSInteger totalSize; @property (weak, nonatomic) IB…

#import "ViewController.h" @interface ViewController ()<NSURLConnectionDataDelegate> @property (weak, nonatomic) IBOutlet UIProgressView *progressView; @property (nonatomic, assign) NSInteger totalSize; @property (nonatomic, assign) NSInte…

#import "ViewController.h" @interface ViewController ()<NSURLConnectionDataDelegate> /** 注释 */ @property (nonatomic, strong) NSMutableData *resultData; @end @implementation ViewController #pragma mark ---------------------- #pragma mark la…

#import "ViewController.h" // ----WebKitFormBoundaryvMI3CAV0sGUtL8tr #define Kboundary @"----WebKitFormBoundaryjv0UfA04ED44AhWx" #define KNewLine [@"\r\n" dataUsingEncoding:NSUTF8StringEncoding] @interface ViewController ()&l…

一:MiMEType:一般可以再百度上搜索到相应文件的MiMEType,或是利用c语言的api去获取文件的MiMEType : //对该文件发送一个异步请求,拿到文件的MIMEType - (void)MIMEType { //    NSString *file = @"file:///Users/文顶顶/Desktop/test.png"; [NSURLConnection sendAsynchronousRequest:[NSURLRequest requestWithURL:[…

一:输出流 #import "ViewController.h" @interface ViewController ()<NSURLConnectionDataDelegate> @property (weak, nonatomic) IBOutlet UIProgressView *progressView; @property (nonatomic, assign) NSInteger totalSize; @property (nonatomic, assign)…

#import "ViewController.h" #import "AFNetworking.h" @interface ViewController ()<NSXMLParserDelegate> @end @implementation ViewController -(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event { [self ht…

一.网络基础 1.基本概念> 为什么要学习网络编程在移动互联网时代,移动应用的特征有几乎所有应用都需要用到网络,比如QQ.微博.网易新闻.优酷.百度地图只有通过网络跟外界进行数据交互.数据更新,应用才能保持新鲜.活力如果没有了网络,也就缺少了数据变化,无论外观多么华丽,终将变成一潭死水 移动网络应用 = 良好的UI + 良好的用户体验 + 实时更新的数据新闻:网易新闻.新浪新闻.搜狐新闻.腾讯新闻视频:优酷.百度视频.搜狐视频.爱奇艺视频音乐:QQ音乐.百度音乐.酷狗音乐.酷我音乐LBS:百度地…

#import "ViewController.h" #import "AFNetworking.h" @interface ViewController () @end @implementation ViewController -(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event { [self post]; } -(void)get { //1.创建会…