*data = [NSData dataWithContentsOfURL:url]; UIImage *image = [UIImage imageWithData:data];...下载图片 NSData *data = [NSData dataWithContentsOfURL:url]; // 3.将NSData转换为图片 UIImage...*data = [NSData dataWithContentsOfURL:url]; UIImage *image = [UIImage imageWithData:data];...*data = [NSData dataWithContentsOfURL:url]; image1 = [UIImage imageWithData:data]; }];...*data = [NSData dataWithContentsOfURL:url]; image2 = [UIImage imageWithData:data]; }];
设定远程图片地址 NSURL *url = [NSURL URLWithString: @"http://domain.com/somepic.png"]; 从NSData中生成图片 UIImage *...image = [UIImage imageWithData: [NSData dataWithContentsOfURL:url]]; 合成在一起 将前两步合在一起,并且将图片显示在界面上。...[NSURL URLWithString: @"http://domain.com/somepic.png"]; UIImage *image = [UIImage imageWithData: [NSData...dataWithContentsOfURL:url]]; [self.view addSubview:[[UIImageView alloc] initWithImage:image]]; ----
NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0]; #ifdef DEBUG NSData...* orgData = [NSData dataWithContentsOfURL:url]; NSLog(@"原视频长度:%d MB",orgData.length/1024/1024);...; //导出视频 [session exportAsynchronouslyWithCompletionHandler:^{ #ifdef DEBUG NSData...* resultData = [NSData dataWithContentsOfURL:[NSURL URLWithString:resultPath]]; NSLog(@"压缩后的视频长度
NSString* filePath = [[NSBundle mainBundle] pathForResource:@"ML" ofType:@"pdf"]; ext.fileData = [NSData...dataWithContentsOfFile:filePath]; //+ (nullable instancetype)dataWithContentsOfURL:(NSURL *)url;...*data = [NSData dataWithContentsOfURL:[NSURL URLWithString:m.url]]; [SVProgressHUD dismiss];...=nil){ return _filePathFromUrl; } NSData *data = [NSData dataWithContentsOfURL...=self.fileExtension; ext.fileData =self.fileData; //+ (nullable instancetype)dataWithContentsOfURL
ReachableViaWWAN) { NSURL *audioURL = [NSURL URLWithString:@"https://www.qq.com/audio"]; NSData...*audioData = [NSData dataWithContentsOfURL:audioURL]; // 处理音频数据 [self processAudioData...:audioData]; } else { NSLog(@"网络不可用"); } } + (void)processAudioData:(NSData *)audioData...如果网络可用,我们会请求目标网站的音频页面,并将其转换为NSData对象。接着,我们调用processAudioData方法处理音频数据。在这个方法中,我们可以根据需要保存或播放音频数据。
*data = [NSData dataWithContentsOfURL:url]; // 生成图片 UIImage *image = [UIImage imageWithData:...*data = [NSData dataWithContentsOfURL:url]; UIImage *image = [UIImage imageWithData:data];...*data = [NSData dataWithContentsOfURL:[NSURL URLWithString:@"http://7xjanq.com1.z0.glb.clouddn.com/6478...*data = [NSData dataWithContentsOfURL:[NSURL URLWithString:@"http://7xjanq.com1.z0.glb.clouddn.com/6478...dataWithContentsOfURL:[NSURL URLWithString:@"http://7xjanq.com1.z0.glb.clouddn.com/6478.jpg"]]]; }];
"http://img.pconline.com.cn/images/photoblog/9/9/8/1/9981681/200910/11/1255259355826.jpg"]; NSData...*data = [NSData dataWithContentsOfURL:url]; self.image1 =[UIImage imageWithData:data];...*url = [NSURL URLWithString:@"http://pic38.nipic.com/20140228/5571398_215900721128_2.jpg"]; NSData...*data = [NSData dataWithContentsOfURL:url]; self.image2 =[UIImage imageWithData:data];
; char *str3="C C string"; NSData *data1=[NSData dataWithBytes:str length:strlen(str...NSLog(@"不可变的data1的长度是:%d,输出指针:%s",[data1 length],[data1 bytes]);//length是字节的长度,bytes是返回一个指针 NSData...*data2=[NSData dataWithBytes:str2 length:strlen(str2)+1];//用于追加到可变G的mdata的中间对象 NSMutableData...strlen(str)+1是因为字符串最后的结尾符并未被计算成字符所以得加上一,’\0’的ASCII是00; NSMutableData是NSData的子类
文件很小的时候可以不使用请求的方法(坏处1、在主线程中,访问服务器的时候会卡死 2、文件太大的时候,一次性传输,服务器受不了) // NSURL * url = [NSURL URLWithString // NSData...* data = [NSData dataWithContentsOfURL:url]; // NSString * str = [[NSString alloc] initWithData:data...接受到数据(发送数据的时候调用,大文件会自动分块传输,这个方法调用多次) - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData
:indexPath.section] objectAtIndex:indexPath.row]]; UIImage *icon = [UIImage imageWithData:[NSData...dataWithContentsOfURL:url]]; CGSize itemSize = CGSizeMake(30, 30); UIGraphicsBeginImageContextWithOptions
iOS-Resume-Download-NSURLConnection.html 目录 文件下载简介 1.1 文件下载分类 1.1.1 按文件大小划分 1.1.2 按实现方法划分 文件下载实现讲解 2.1 NSData...本文主要讲解NSData和NSURLConnection。 2. 文件下载实现讲解 2.1 NSData(适用于小文件下载) ?...NSData小文件下载效果.gif 我们可以使用NSData的 + (id)dataWithContentsOfURL:(NSURL *)url;进行小文件的下载 这个方法实际上是发送一次GET请求,然后返回整个文件...url = [NSURL URLWithString:@"http://pics.sc.chinaz.com/files/pic/pic9/201508/apic14052.jpg"]; // 使用NSData...的dataWithContentsOfURL:方法下载 NSData *data = [NSData dataWithContentsOfURL:url]; // 如果下载的是将要显示的图片,则可以显示出来
urlStr = @"http://d.jpg"; NSURL *url = [NSURL URLWithString:urlStr]; // 2.根据地址下载图片的二进制数据 NSData...*data = [NSData dataWithContentsOfURL:url]; // 3.设置图片 UIImage *image = [UIImage imageWithData...// 1.子线程下载图片 NSURL *url = [NSURL URLWithString:@"http://d.jpg"]; NSData...*data = [NSData dataWithContentsOfURL:url]; UIImage *image = [UIImage imageWithData
需要把网络图片转化为UIImage,下面就是方法: +(UIImage *) getImageFromURL:(NSString *)fileURL { UIImage * result; NSData...* data = [NSData dataWithContentsOfURL:[NSURL URLWithString:fileURL]]; result = [UIImage imageWithData...*)image toByte:(NSUInteger)maxLength { // Compress by quality CGFloat compression = 1; NSData
从网络下载图片 -(UIImage ) getImageFromURL:(NSString )fileURL { NSLog(@"执行图片下载函数"); UIImage * result; NSData...* data = [NSData dataWithContentsOfURL:[NSURL URLWithString:fileURL]]; result = [UIImage imageWithData
UIImage *) getImageFromURL:(NSString *)fileURL { NSLog(@"执行图片下载函数"); UIImage * result; NSData...* data = [NSData dataWithContentsOfURL:[NSURL URLWithString:fileURL]]; result = [UIImage imageWithData
DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ UIImage *image = nil; NSURL *url = [NSURL URLWithString:urlString]; NSData...*data = [NSData dataWithContentsOfURL:url]; image = [UIImage imageWithData:data]; if (image) {
NSURLRequestReturnCacheDataDontLoad]; }else{ NSLog(@"没有缓存"); } //创建NSURLConnection NSData...resultFilePath = destFilePath; } else { NSLog(@"没有缓存,请求数据\n"); NSData...*userInfoData = [NSData dataWithContentsOfURL:[NSURL URLWithString:url]]; if...destFilePath atomically:YES]) { resultFilePath = destFilePath; } } NSData
dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ NSData...*data = [NSData dataWithContentsOfURL:filePath]; NSUInteger len = [data length]; uint8
NSLog(@"fail"); if (failureBlock) { failureBlock(error); } }; NSData...* data = [NSData dataWithContentsOfURL:[NSBundle mainBundle].appStoreReceiptURL]; NSMutableDictionary