IOS开发选择图片(相机或者图库)

// 调用系统相册
- (void)cemororAction
{
    UIAlertController *alertC = [UIAlertController alertControllerWithTitle:@"请选择图片来源" message:nil preferredStyle:UIAlertControllerStyleActionSheet];
    
    //从照相机拍照
    UIAlertAction *cameraAction = [UIAlertAction actionWithTitle:@"照相机" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
           self.pickerViewController = [[UIImagePickerController alloc] init];
            self.pickerViewController.delegate = self;//设置UIImagePickerController的代理，同时要遵循UIImagePickerControllerDelegate，UINavigationControllerDelegate协议
            self.pickerViewController.allowsEditing = YES;//设置拍照之后图片是否可编辑，如果设置成可编辑的话会在代理方法返回的字典里面多一些键值。PS：如果在调用相机的时候允许照片可编辑，那么用户能编辑的照片的位置并不包括边角。
            self.pickerViewController.sourceType = UIImagePickerControllerSourceTypeCamera;//UIImagePicker选择器的数据来源，UIImagePickerControllerSourceTypeCamera说明数据来源于摄像头
            [self presentViewController:self.pickerViewController animated:YES completion:nil];
        }else{
            
            NSLog(@"哎呀,没有摄像头");
        }
        
    }];
    
    //从手机相册选取
    UIAlertAction *photoAction = [UIAlertAction actionWithTitle:@"相册" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeSavedPhotosAlbum]) {
            self.pickerViewController = [[UIImagePickerController alloc]init];
            self.pickerViewController.delegate = self;
            self.pickerViewController.allowsEditing = YES;//是否可以对原图进行编辑
            
            //设置图片选择器的数据来源为手机相册
            self.pickerViewController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
            [self presentViewController:self.pickerViewController animated:YES completion:nil];
        }
        else{
            
            NSLog(@"图片库不可用");
            
        }
    }];
    
    //取消
    UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil];
    
    [alertC addAction:cameraAction];
    [alertC addAction:photoAction];
    [alertC addAction:cancelAction];
    [self presentViewController:alertC animated:YES completion:nil];
    
}
#pragma mark - UIImagePickerControllerDelegate
#pragma mark - 拍照/选择图片结束
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    //    NSLog(@"如果允许编辑%@",info);//picker.allowsEditing= YES允许编辑的时候 字典会多一些键值。
    //获取图片
    //    UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];//原始图片
    UIImage *image = [info objectForKey:UIImagePickerControllerEditedImage];//编辑后的图片
    
    NSLog(@"%@",image);
    
//    self.iconImage = image;
//    
//    [self.iconBtn setBackgroundImage:image forState:UIControlStateNormal];
//    
//    [self saveImage:image withName:@"fileupload.png"];
    
    [self dismissViewControllerAnimated:YES completion:nil];
}
- (void) saveImage:(UIImage *)currentImage withName:(NSString *)imageName
{
//    // UIImage对象 -> NSData对象
//    NSData *imageData = UIImagePNGRepresentation(currentImage);
//    // 获取沙盒目录
//    
//    NSString *fullPath = [[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"] stringByAppendingPathComponent:imageName];
//    // 将图片写入文件
//    [imageData writeToFile:fullPath atomically:NO];
//    
//    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
//    manager.responseSerializer.acceptableContentTypes = [manager.responseSerializer.acceptableContentTypes setByAddingObject:@"text/plain"];
//    manager.responseSerializer.acceptableContentTypes = [manager.responseSerializer.acceptableContentTypes setByAddingObject:@"text/html"];
//    manager.requestSerializer = [AFJSONRequestSerializer serializer];
//    manager.responseSerializer = [AFHTTPResponseSerializer serializer];
//    
//    /* 文件上传接口 --- upload.268xue.com/goswf?base=mavendemo&param=user&fileupload=图片二进制 */
//    NSDictionary *dic = @{
//                          @"base":@"mavendemo",
//                          @"param":@"user"
//                          };
//    [manager POST:@"http://139.129.5.145:83/goswf" parameters:dic constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
//        //在网络开发中，上传文件时，是文件不允许被覆盖的，文件重名，解决方法可以在上传时使用当前的系统事件作为文件名
//        NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
//        // 设置时间格式
//        formatter.dateFormat = @"yyyyMMddHHmmss";
//        NSString *str = [formatter stringFromDate:[NSDate date]];
//        NSString *fileName = [NSString stringWithFormat:@"%@.png", str];
//        [formData appendPartWithFileData:imageData name:@"fileupload" fileName:fileName mimeType:@"image/png"];
//    } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nonnull responseObject) {
//        if (responseObject != nil) {
//            
//            NSData *reciveData = responseObject;
//            NSString *reciveString =  [[NSString alloc]initWithData:reciveData encoding:NSUTF8StringEncoding];
//            [self changeUserImage:reciveString];
//        }
//        
//    } failure:^(NSURLSessionDataTask * _Nonnull task, NSError * _Nonnull error) {
//        NSLog(@"Error: %@", error);
//    }];
}

- (void)changeUserImage:(NSString *)imageUrlStr
{
    
//    NSLog(@"头像的网址是是%@",imageUrlStr);
//    AFHTTPSessionManager *mgr = [AFHTTPSessionManager manager];
//    mgr.responseSerializer = [AFJSONResponseSerializer serializer];
//    
//    NSDictionary *dic = @{
//                          @"userId":[[NSUserDefaults standardUserDefaults] objectForKey:@"USERID"],
//                          @"imageUrl":imageUrlStr
//                          };
//    /*头像修改地址
//     http://www.yuningwang.com/app/user/avatar?userId=1&avatar=/upload/eduplatform_268/default/ucbanner/hxht-b.jpg
//     */
//    [mgr POST:@"http://139.129.5.145:81/api/user/updateProfileImg" parameters:dic success:^(NSURLSessionDataTask * _Nonnull task, id  _Nonnull responseObject) {
//        
//        if ([responseObject[@"success"] integerValue]) {
//            NSLog(@"修改成功");
//            //重设头像
//            NSLog(@"%@",imageUrlStr);
//            //            NSString *iconstr = [NSString stringWithFormat:@"%@%@",mobileLogo_url,imageUrlStr];
//            //   [[NSUserDefaults standardUserDefaults] setObject:iconstr forKey:@"avatar"];
//            [[NSUserDefaults standardUserDefaults] synchronize];
//            [MBProgressHUD showMBPAlertView:@"头像修改成功" withSecond:0];
//            // [[NSNotificationCenter defaultCenter] postNotificationName:@"iconChanged" object:self];
//            [self.navigationController popViewControllerAnimated:YES];
//            
//            //self.block();
//            
//            
//        }
//        else {
//            NSLog(@"修改失败");
//        }
//    } failure:^(NSURLSessionDataTask * _Nonnull task, NSError * _Nonnull error) {
//        
//        NSLog(@"Error: %@",error);
//    }];
}

#pragma mark - 取消拍照/选择图片
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
    [self dismissViewControllerAnimated:YES completion:nil];
}