[iOS 多线程 & 网络 - 2.10] - ASI框架下载文件

 1 //
 2 //  ViewController.m
 3 //  ASIDownloadDemo
 4 //
 5 //  Created by hellovoidworld on 15/1/28.
 6 //  Copyright (c) 2015年 hellovoidworld. All rights reserved.
 7 //
 8 
 9 #import "ViewController.h"
10 #import "ASIHTTPRequest.h"
11 
12 @interface ViewController ()
13 
14 @property(nonatomic, strong) ASIHTTPRequest *request;
15 
16 @property (weak, nonatomic) IBOutlet UIProgressView *progressView;
17 
18 - (IBAction)startDownloading;
19 
20 @end
21 
22 @implementation ViewController
23 
24 - (void)viewDidLoad {
25     [super viewDidLoad];
26     // Do any additional setup after loading the view, typically from a nib.
27 }
28 
29 - (void)dealloc {
30     [self.request clearDelegatesAndCancel];
31     self.request = nil;
32 }
33 
34 - (IBAction)startDownloading {
35     // 1.创建请求
36     NSURL *url = [NSURL URLWithString:@"http://192.168.0.21:8080/MyTestServer/images/images.zip"];
37     self.request = [ASIHTTPRequest requestWithURL:url];
38    
39     // 2.设置文件存放路径
40     NSString *cachePath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject];
41     NSString *filePath = [cachePath stringByAppendingPathComponent:@"images.zip"];
42     self.request.downloadDestinationPath = filePath;
43    
44     // 3.设置下载代理
45     // 由于刚好下载代理方法有个setProgress，可以直接使用progressView的setProgress，直接控制进度条
46     self.request.downloadProgressDelegate = self.progressView;
47    
48     // 4.支持断点下载
49     self.request.allowResumeForFileDownloads = YES;
50    
51     self.request.completionBlock = ^{
52         NSLog(@"下载完成!");
53     };
54    
55     // 5.发送请求
56     [self.request startAsynchronous];
57 }
58  
59 #pragma mark - ASIProgressDelegate
60 /** 下载进度代理方法 */
61 //- (void)setProgress:(float)newProgress {
62 //    self.progressView.progress = newProgress;
63 //}
64  
65 @end