上传图片两种操作方式：一种是从相册上传，一种是拍照上传

1.UIImagePickerController在这个代理方法中做如下处理：

#pragma mark - UIImagePickerController Delegate

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info

{

UIImage *image = info[UIImagePickerControllerOriginalImage];

[self uploadImage:image];

[self dismissViewControllerAnimated:YES completion:nil];

}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker

{

[self dismissViewControllerAnimated:YES completion:nil];

}

- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated

{

// bug fixes: UIIMagePickerController使用中偷换StatusBar颜色的问题

if ([navigationController isKindOfClass:[UIImagePickerController class]] &&

((UIImagePickerController *)navigationController).sourceType ==     UIImagePickerControllerSourceTypePhotoLibrary) {

[[UIApplication sharedApplication] setStatusBarHidden:NO];

[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent animated:NO];

}

[navigationController.navigationBar setTintColor:[UIColor whiteColor]];

}

2.调接口上传图片，图片必须转为NSData 通过这个方法  NSData *data = UIImageJPEGRepresentation(image, .5f);

上传接口如下：

- (void)uploadImage:(UIImage *)image

{

[MLProgressView showProgressViewAddedTo:self.view displayMessage:@"请稍后..." withType:0];

NSData *data = UIImageJPEGRepresentation(image, .5f);

XXXXNetRequestData *req = [[XXXXNetRequestData alloc] init];

[req setData:data forKey:@"imageFile"];

[req setString:@"0" forKey:@"imageType"];

[[网络请求类  sharedClient] requestPostWithType:XXXXRequest_uploadImage

args:[req toDictionary]

success:^(id responseObject) {

[MLProgressView hideAllHUDsForView:self.view];

NSString *url = [responseObject objectForKey:@"url"];

[self.webView stringByEvaluatingJavaScriptFromString:[NSString stringWithFormat:@"sendImgLink('%@')",url]];

} failure:^(NSError *error) {

[MLProgressView hideAllHUDsForView:self.view];

Alert(@"", @"上传失败");

}];

}

[self.webView stringByEvaluatingJavaScriptFromString:[NSString stringWithFormat:@"sendImgLink('%@')",url]]; 这个端代码是涉及到与HTML交互，在HTML网页上来完成上传。