七牛上传图片问题总结

1.图片的不同状态显示

解决方法一:

本地路径	网络路径	状态
1	0	点击上传
1	1	已上传
0	1	已上传
0	0	点击拍照

if([image hasPrefix:@"http"] ) {
      //只要有网络路径或者本地图片已上传 --  就代表已上传
    [cell.uploadButton setTitle:@"已上传" forState:UIControlStateNormal];
    cell.UploadStausImageView.image = [UIImage imageNamed:@"uploadedMany"];
}else if ([path hasPrefix:@"/"] ) { //本地有  但是没有网络路径  --代表 等待上传
    [cell.uploadButton setTitle:@"点击上传" forState:UIControlStateNormal];
    cell.UploadStausImageView.image = [UIImage imageNamed:@"waitingUpload"];
}else {
     [cell.uploadButton setTitle:@"点击拍照" forState:UIControlStateNormal];
    cell.UploadStausImageView.image = [UIImage imageNamed:@"clickToTakePhoto"];
 }

这只是刚入坑而已.这样做存在一个问题:本地路径,网络路径同时存在的话有两种可能 1.已上传 2.点击上传(更新图片的情况)

于是又有了以下思路:利用标记的思想,来判断本地图片是否已经上传过.

标记本地图片	状态
0	点击上传
1	已上传

if([image hasPrefix:@"http"] ) { //只要有网络路径或者本地图片已上传 --  就代表已上传
    //既有网络路径又有本地路径   有两种情况
    if ([[[NSUserDefaults standardUserDefaults]objectForKey:path] isEqualToString:@"0"] ) {
          [cell.uploadButton setTitle:@"点击上传" forState:UIControlStateNormal];
          cell.UploadStausImageView.image = [UIImage imageNamed:@"waitingUpload"];
      }else {
          [cell.uploadButton setTitle:@"已上传" forState:UIControlStateNormal];
          cell.UploadStausImageView.image = [UIImage imageNamed:@"uploadedMany"];
      }
}else if ([path hasPrefix:@"/"] || [[[NSUserDefaults standardUserDefaults]objectForKey:path] isEqualToString:@"0"]) { //本地有  但是没有网络路径  --代表 等待上传
    [cell.uploadButton setTitle:@"点击上传" forState:UIControlStateNormal];
    cell.UploadStausImageView.image = [UIImage imageNamed:@"waitingUpload"];
}else {
    [cell.uploadButton setTitle:@"点击拍照" forState:UIControlStateNormal];
    cell.UploadStausImageView.image = [UIImage imageNamed:@"clickToTakePhoto"];
}

2.上传单张图片

公司利用的是一个第三方(七牛),自己也封装了一个上传单张图片的类

- (void)uploadWithFile:(NSString *)file withProgress:(QNUpProgressHandler)progress success:(void(^)(NSString*url))success failure:(void(^)())failure {
 UIImage *getImage = [UIImage imageWithContentsOfFile:file];
QNUploadOption *option = [[QNUplLBHTTPRequestoadOption alloc] initWithMime:nil progressHandler:progress params:nil checkCrc:NO cancellationSignal:nil];
//先获取token
[LBHTTPRequest postImage:[LBHTTPRequest getUserId] token:[LBHTTPRequest getUserToken] userType:@"1" fileExt:@"png" SuccessBlock:^(BOOL isSuccess, NSDictionary *resultDic) {
    if (isSuccess) {
        NSString * token = resultDic[@"uploadToken"];
        QNUploadManager *upManager = [[QNUploadManager alloc] init];
        NSData *data;
        if (UIImagePNGRepresentation(getImage) == nil){
            data = UIImageJPEGRepresentation(getImage, 1);
        } else {
            data = UIImagePNGRepresentation(getImage);
        }
        [upManager putData:data key:resultDic[@"fileKey"] token:token
                  complete: ^(QNResponseInfo *info, NSString *key, NSDictionary *resp) {
                      [SVProgressHUD dismiss];
                      // isLoadLogo = NO;
                      if([resp[@"result"] intValue] == 200)
                      {
                          [LBUploadManager sharedInstance].imageUrl = resp[@"fileUrl"];
                          success([LBUploadManager sharedInstance].imageUrl);
                      }
                  } option:option];
    }
}];

}

3.上传多张图片

七牛第三方并没有提供多张图片上传的方法,但是无所谓.

//上传多张图片
- (void)uploadImagesWithFileArray:(NSMutableArray *)fileArray progress:(void(^)(CGFloat))progress success:(void(^)(NSString *))success failure:(void(^)())failure {
//判断网络状态
AFNetworkReachabilityManager *netStatus = [AFNetworkReachabilityManager sharedManager];
[netStatus startMonitoring];
[netStatus setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
    if (status == AFNetworkReachabilityStatusNotReachable) {//无网络连接
        [SVProgressHUD showWithStatus:@"当前无网络连接"];
    }
    if (status == AFNetworkReachabilityStatusReachableViaWWAN) { //手机自带网络
        //提示用户是否继续进行上传图片
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"友情提示" message:@"当前使用的手机流量,您是否继续?" delegate:[LBUploadManager sharedInstance] cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];
        [alert show];
    }
    if (status == AFNetworkReachabilityStatusReachableViaWiFi) { //wifi
        //1.获取所有的图片
        NSMutableArray *imageArray = [[LBUploadManager sharedInstance]getImageArrayWithFileArray:fileArray];
        dispatch_queue_t queue = dispatch_get_global_queue(0, 0);
        dispatch_async(queue, ^{
            for (int i = 0; i < imageArray.count; i ++ ) {
                dispatch_async(queue, ^{   //上传头像
                    [[LBUploadManager sharedInstance]uploadWithFile:imageArray[i] withProgress:^(NSString *key, float percent) {
                        progress(percent);
                    } success:^(NSString *url) {
                        success(url);
                        //获取studentId
                        NSString *key = [[LBUploadManager sharedInstance].fileArray[i] allKeys].lastObject;
                   [LBHTTPRequest PostUpdataStudentImageWithStudentId:key withStudentImage:url andSuccessBlock:^(BOOL isSuccess, NSDictionary *resultDic) {
                       if (isSuccess) {
                       [[NSNotificationCenter defaultCenter]postNotificationName:@"refresh" object:nil];
                       [[NSNotificationCenter defaultCenter]postNotificationName:@"updataStudentData" object:nil];
                       }
                       [[NSUserDefaults standardUserDefaults]setObject:@"1" forKey:imageArray[i]];
                       [[LBUploadManager sharedInstance].fileArray removeObject:imageArray[i]];
                   }];
                    } failure:^{
                    }];
                });
            }
        });
    }
    if (status == AFNetworkReachabilityStatusUnknown) { //未知网络
    }
}];

}