iOS UI 15 网络编程2

//

//  RootViewController.m

//  UI - 15网络编程

//

//  Created by dllo on 15/11/27.

//  Copyright (c) 2015年 dllo. All rights reserved.

//

#import "RootViewController.h"

@interface RootViewController ()<NSURLSessionDownloadDelegate>

@property (nonatomic, retain) NSURLSessionDownloadTask  *downMovieT;

@property (retain, nonatomic) IBOutlet UIButton *get;

@property (retain, nonatomic) IBOutlet UIButton *post;

@property (retain, nonatomic) IBOutlet UIImageView *imageview;

@property (retain, nonatomic) IBOutlet UIProgressView *progressv;

@property (retain, nonatomic) IBOutlet UIView *start;

@property (retain, nonatomic) IBOutlet UIButton *pause;

@property (retain, nonatomic) IBOutlet UIButton *button4;

@property (retain, nonatomic) IBOutlet UIButton *button5;

@end

@implementation RootViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view from its nib.

}

- (IBAction)start:(UIButton *)sender {

    //开始下载

    if (NSURLSessionTaskStateSuspended  == self.downMovieT.state) {

        [self.downMovieT resume];

    }

   

    

}

- (IBAction)pause:(UIButton *)sender {

    

    if (NSURLSessionTaskStateRunning  == self.downMovieT.state) {

        //暂停下载

        [self.downMovieT suspend];

    }

//    //暂停下载

//    [self.downMovieT suspend];

//    

    

    

}

- (IBAction)button4:(id)sender {

    

    NSURL *url = [NSURL URLWithString:@"http://img4.duitang.com/uploads/item/201207/28/20120728105310_jvAjW.thumb.600_0.jpeg"];

    

    NSURLSession *session = [NSURLSession sharedSession];

    

     NSURLSessionDownloadTask *downImage =[session downloadTaskWithURL:url completionHandler:^(NSURL *location, NSURLResponse *response, NSError *error) {

         

         

         NSString *cach = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject];

         NSLog(@"%@", cach);

         //拼接文件名 - 推荐用系统推荐的文件名(与服务区文件同名),也可以自定义头文件名

         //自定义文件名

//         NSString *file = [cach stringByAppendingPathComponent:@"waning.png"];

         //系统推荐

         NSString *file = [cach stringByAppendingPathComponent:response.suggestedFilename];

        //管理文件的类

         NSFileManager *fileM = [NSFileManager defaultManager];

         //将下载数据由临时文件搬到自己的缓存路径内

         [fileM moveItemAtPath:location.path toPath:file error:nil];

         self.imageview.image  = [UIImage imageWithContentsOfFile:file];

         

         

    }];

    

    [downImage resume];

    

}

- (IBAction)button5:(id)sender {

    

    //若已经存在任务则不再触发,直接退出返回

    if (nil != self.downMovieT) {

        return;

    }

    NSURL *url = [NSURL URLWithString:@"http://hc25.aipai.com/user/656/20448656/6167672/card/25033081/card.mp4?l=a"];

  

      NSURLRequest *request = [NSURLRequest requestWithURL:url];

    

    //协议代理方式请求

    NSURLSession *senssion = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration] delegate:self delegateQueue:[NSOperationQueue mainQueue]];

    //创建下载任务

    self.downMovieT = [senssion downloadTaskWithRequest:request];

    //开始任务

    [_downMovieT resume];

    

}

//下载器

- (void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTask *)downloadTask didWriteData:(int64_t)bytesWritten totalBytesWritten:(int64_t)totalBytesWritten totalBytesExpectedToWrite:(int64_t)totalBytesExpectedToWrite

{

    NSLog(@"下载过程中会多次调用, 每次下载不一定多大的数据");

    NSLog(@"本次下载大小:%.2fKB, 已经下载大小:%.2fKB, 总大小:%.2fKB", bytesWritten / 1024.0, totalBytesWritten / 1024.0, totalBytesExpectedToWrite / 1024.0);

    

    

    self.progressv.progress = (float)totalBytesWritten / totalBytesExpectedToWrite;

    

    

    

}

- (void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTask *)downloadTask didFinishDownloadingToURL:(NSURL *)location

{

   

    NSLog(@"下载完毕时调用");

    NSString *cach = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject];

    

    //自定义名字

    NSString *file = [cach stringByAppendingPathComponent:@"waning"];

    //系统命名推荐

//    NSString *file = [cach stringByAppendingPathComponent:downloadTask.response.suggestedFilename];

    

    NSFileManager *mrc = [NSFileManager defaultManager];

    

    [mrc moveItemAtPath:location.path toPath:file error:nil];

    

    

}

- (IBAction)post:(UIButton *)sender {

    

    

    

    NSString *urlStr = @"http://ipad-bjwb.bjd.com.cn/DigitalPublication/publish/Handler/APINewsList.ashx";

    NSURL *url = [NSURL URLWithString:urlStr];

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];

    /**************************post新增********************/

    //先设置为Post模式

    request.HTTPMethod = @"POST";

    NSString *bodyStr = @"date=20131129&startRecord=1&len=30&udid=1234567890&terminalType=Iphone&cid=213";

    NSData *bodyData = [bodyStr dataUsingEncoding:NSUTF8StringEncoding];

    //再添加Body

    request.HTTPBody = bodyData;

    /**************************post新增********************/

    NSURLSession *senssion = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration] ];

    

    

   NSURLSessionDataTask * PostT =  [senssion dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {

       id result = [NSJSONSerialization JSONObjectWithData:data options: NSJSONReadingMutableContainers error:nil];

       NSLog(@"%@", result);

       

       

        

        

   }];

    

    [PostT resume];

    

    

}

- (IBAction)get:(UIButton *)sender {

    

    //5, 网址字符串

    NSString *urlstr = @"http://api.map.baidu.com/place/v2/search?query=银行&region=大连&output=json&ak=6E823f587c95f0148c19993539b99295";

    //6, IOS9.0后使用的未明字符转换,未明字符如中文

    NSString *urlEncode = [urlstr stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];

    //4,创建url

    NSURL *url = [NSURL URLWithString:urlEncode];

    

    //3,创建请求对象,request可设置信息如:url,方式(GET/POST),超时时间等

//    NSURLRequest *request = [NSURLRequest requestWithURL:url];

    NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy: NSURLRequestUseProtocolCachePolicy timeoutInterval:60 ];

    //1,创建NSURLSession对象,选择默认配置

    NSURLSession *sessioin = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];

    

    //2 ,创建请求任务,当异步请求完成会调用block,在block里面完成数据处理

    

    NSURLSessionDataTask * getTast = [sessioin dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {

        

        //当数据请求完毕,在此处解析数据

        NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];

        NSLog(@"%@",dic);

        /**

         *  注意刷新界面 [self.tablev releaload]

         */

        

    }];

    //7, 开始任务

    [getTast resume];

    

    

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

/*

#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {

    // Get the new view controller using [segue destinationViewController].

    // Pass the selected object to the new view controller.

}

*/

- (void)dealloc {

    [_get release];

    [_post release];

    [_downMovieT release];

    [_button4 release];

    [_imageview release];

    [_button5 release];

    [_progressv release];

    [_start release];

    [_pause release];

    [super dealloc];

}

@end