利用AFN封装上传多张图片方法,并压缩图片体积
+ (void)CommentPicWithDic:(NSDictionary *)dic//上传图片时可能有的附加条件如userid;
withImages:(NSDictionary *)imageDic//存图片的字典
success:(void (^)(NSDictionary *))success
faile:(void (^)(NSError *))faile
{
NSString *urlStr = @"上传到的地址";
AFHTTPRequestOperationManager *Manager = [AFHTTPRequestOperationManager manager];
Manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"];
[afManager POST:urlStr parameters:dic constructingBodyWithBlock:^(id<AFMultipartFormData> formData){
for (id key in imageDic) {
UIImage *image = [imageDic objectForKey:key];
//FileData:图片压缩后的data类型
//name: 后台规定的key
//fileName:自己给文件起名
//mimeType :图片类型
[formData appendPartWithFileData:UIImagePNGRepresentation(image) name:[NSString stringWithFormat:@"%@",key] fileName:[NSString stringWithFormat:@"%@.png",key] mimeType:@"image/png"];
}
}success:^(AFHTTPRequestOperation *operation, id responseObject){
success(responseObject);
}failure:^(AFHTTPRequestOperation *operation, NSError *error){
faile(error);
}];
}
if (imgsAry.count != 0){//存图片的数组
for (int j = 0; j < imgsAry.count; j++) {
UIImage * img = imgsAry[j];
NSData *imgData = UIImagePNGRepresentation(img);//亚索体积
if (imgData.length > 1024000) {//图片不大于1M
CGSize imgSize = CGSizeMake(img.size.width / 2, img.size.height / 2);
img = [self OriginImage:img scaleToSize:imgSize];//亚索图片尺寸
}
[imgDic setObject:img forKey:[NSString stringWithFormat:@"aaa%d",j + 1]];//后台让你传的图片对应的key
}
//方法使用
[APIManager CommentPicWithDic:imgInfoDic withImages:imgDic success:^(NSDictionary *info) {
NSLog(@"%@",info);
} faile:^(NSError *error) {
NSLog(@"0000%@",error);
}];
//图片处理，图片压缩
- (UIImage*)OriginImage:(UIImage *)image scaleToSize:(CGSize)size {
UIGraphicsBeginImageContext(size); //你所需要的图片尺寸
[image drawInRect:CGRectMake(0, 0, size.width, size.height)];
UIImage* scaledImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return scaledImage; //返回已变图片
}
对您有用的话,可否关注下本人?以此激励我和您的共同提高,谢谢了.
12.5
对于太大的图片还是有缺陷,求大神给建议
3.2
自问自答.想起来了更新下备忘
//传图片
- (void)PostImgWithDic:(NSDictionary *)dic
withImg:(NSDictionary *)imgDic
url:(NSString *)url
successBlock:(SuccessBlock)successBlock
failureBlock:(FailureBlock)failureBlock
{
// AFHTTPSessionManager *manager = [self baseHtppRequest];
AFHTTPSessionManager *postAvatarManager = [AFHTTPSessionManager manager];
postAvatarManager.responseSerializer= [AFHTTPResponseSerializer serializer];
[postAvatarManager POST:url parameters:dic constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) {
if (imgDic.allKeys.count == 0) {
NSLog(@"没有图片上传");
}else
{
for (id key in imgDic) {
UIImage *image = [imgDic objectForKey:key];
NSData *data = [[NSData alloc] init];
data = UIImageJPEGRepresentation(image, 1.0);
CGFloat count = 100;
DLog(@"图片大小%ld",data.length);
while (data.length > 1024000) {
count--;
data = UIImageJPEGRepresentation(image, count / 100);
DLog(@"变化图片大小%ld,%f",data.length,count / 100);
}
[formData appendPartWithFileData: data name:[NSString stringWithFormat:@"%@",key] fileName:[NSString stringWithFormat:@"%@.jpeg",key] mimeType:@"image/jpeg"];//Type:@"image/jpeg"fileName:[NSString stringWithFormat:@"%@.png"
}
}
} progress:^(NSProgress * _Nonnull uploadProgress) {
nil;
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
// NSLog(@"上传图片成功了AFN ");
DLog(@"上传图片成功了AFN ");
successBlock(responseObject);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSString *errorStr = [error.userInfo objectForKey:@"NSLocalizedDescription"];
// NSLog(@"上传图片失败了了AFN ");
DLog(@"上传图片失败了了AFN ");
failureBlock(errorStr);
}];
}
