批量上传图片

在.h声明方法

定义block回调

typedef void (^resultBlock)(id responseObject);//返回数据

-(void)updatePictureApi:(id)Api picArr:(NSArray*)picArr type:(NSString *)type withBlock:(resultBlock)block;

在类的.m

+(AFHTTPSessionManager*)getSession{

//网络请求初始化

AFHTTPSessionManager *sessionManager = [AFHTTPSessionManager manager];

[sessionManager.securityPolicy setAllowInvalidCertificates:YES];

sessionManager.requestSerializer.timeoutInterval = 10.f;//改成10s

sessionManager.responseSerializer = [AFJSONResponseSerializer serializer];//回复序列化

sessionManager.requestSerializer = [AFHTTPRequestSerializer serializer];

//        sessionManager.requestSerializer.stringEncoding = NSUTF8StringEncoding;

sessionManager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json",

@"text/html",

@"image/jpeg",

@"image/png",

@"application/octet-stream",

@"text/json",

@"text/javascript",

nil];

return sessionManager;

}

//上传图片-(void)updatePictureApi:(id)Api picArr:(NSArray*)picArr type:(NSString *)type withBlock:(resultBlock)block{    NSString *hostUrl;    for(int i=0;i_Nonnull formData) {

UIImage *img = picArr[i];

//获取图片的大小

NSData *imageData = [self detailPicture:img];

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];

formatter.dateFormat = @"yyyyMMddHHmmss";

NSString *str = [formatter stringFromDate:[NSDate date]];

NSString *fileName = [NSString stringWithFormat:@"%@.png", str];

[formData appendPartWithFileData:imageData name:@"file" fileName:fileName mimeType:@"image/png"];

} progress:^(NSProgress * _Nonnull uploadProgress) {

NSString *count = [NSString stringWithFormat:@"%f",(float)uploadProgress.completedUnitCount/uploadProgress.totalUnitCount];

NSString *indexStr = [NSString stringWithFormat:@"%d",i];

dispatch_async(dispatch_get_main_queue(), ^{

block(@[indexStr,count]);

});

} success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

}];

}

}

//处理图片大小

-(NSData*)detailPicture:(UIImage*)image{

NSData *imageData;

if (UIImagePNGRepresentation(image)) {

imageData = UIImagePNGRepresentation(image);//返回为png图像。

}else {

imageData = UIImageJPEGRepresentation(image, 1);//返回为JPEG图像。

}

//获取图片的大小

float size = [imageData length]/1024.0;

if (size>4096) {

imageData = UIImageJPEGRepresentation(image, 4096.0/size);//对图片进行压缩

}

size = [imageData length]/1024.0;

if (size>4096) {

imageData = [self detailPicture:[UIImage imageWithData:imageData]];

}

return imageData;

}

@end

下面就是控制器里面传参数，解析数据了