iOS-AFNetworking-上传图片

一.AFNetworking上传图片

/**

需要Demo,可留言

*/

1.利用AFnetworking上传图片.

2.注意将UIImage类型转化为NSData类型,传给后台.

二.Demo

//
//  ViewController.m
//  Demo-AFNetworking-上传图片
//
//  Created by quhaola on 16/4/8.
//  Copyright © 2016年 MC. All rights reserved.
//

#import "ViewController.h"

#import <MobileCoreServices/MobileCoreServices.h>
#import "AFHTTPRequestOperationManager.h"

#define YYIP @"http://服务器地址"

@interface ViewController () <UINavigationControllerDelegate,UIImagePickerControllerDelegate>

@property (nonatomic, strong) UIImageView    * imageView;

@end

@implementation ViewController

#pragma mark - 生命周期
- (void)viewDidLoad {
    [super viewDidLoad];

    //从相册选择
    [self addLibraryButton];

    //从拍照选取
    [self addPhotoButton];

    //展示选择或者拍照的图片
    [self addImageView];
}

#pragma mark - 实现方法

#pragma mark 相册按钮
- (void)addLibraryButton
{
    UIButton * libraryButton = [UIButton buttonWithType:UIButtonTypeCustom];
    libraryButton.frame = CGRectMake(, , , );
    libraryButton.backgroundColor = [UIColor blueColor];
    [libraryButton setTitle:@"相册" forState:UIControlStateNormal];

    [libraryButton addTarget:self action:@selector(addLibraryButtonClicked) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:libraryButton];
}

#pragma mark 拍照按钮
- (void)addPhotoButton
{
    UIButton * photoButton = [UIButton buttonWithType:UIButtonTypeCustom];
    photoButton.frame = CGRectMake(, , , );
    photoButton.backgroundColor = [UIColor blueColor];
    [photoButton setTitle:@"拍照" forState:UIControlStateNormal];

    [photoButton addTarget:self action:@selector(photoButtonClicked) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:photoButton];
}

#pragma mark 展示图片
- (void)addImageView
{
    self.imageView = [[UIImageView alloc] init];
    self.imageView.frame = CGRectMake(, , self.view.bounds.size.width - , );

    self.imageView.backgroundColor = [UIColor grayColor];
    [self.view addSubview:self.imageView];
}

#pragma mark - 点击事件

#pragma mark 相册按钮的点击事件
- (void)addLibraryButtonClicked
{
    NSLog(@"相册");

    //先判断是否支持相册类型
    if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary])
    {
        NSLog(@"相册不可用");
        return;
    }

    //创建图片选取类
    UIImagePickerController * imagePickerController = [[UIImagePickerController alloc] init];
    imagePickerController.delegate = self;
    imagePickerController.allowsEditing = YES;

    imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

    [self presentViewController:imagePickerController animated:YES completion:^{

    }];
}

#pragma mark 拍照按钮的点击事件
- (void)photoButtonClicked
{
    NSLog(@"拍照");

    if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
    {
        NSLog(@"相机不可用");
        return;
    }

    NSArray * availableMeidatypes = [UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypeCamera];

    BOOL canTakePicture = NO;

    for (NSString * mediaType in availableMeidatypes)
    {
        if ([mediaType isEqualToString:(NSString *)kUTTypeImage])
        {

            //支持拍照
            canTakePicture = YES;
            break;
        }
    }

    if (!canTakePicture)
    {
        NSLog(@"不支持拍照");
        return;
    }

    //创建图片选取控制器
    UIImagePickerController * imagePickerController = [[UIImagePickerController alloc] init];

    imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera;

    imagePickerController.mediaTypes = [[NSArray alloc] initWithObjects:(NSString *)kUTTypeImage, nil];

    imagePickerController.allowsEditing = YES;

    imagePickerController.delegate = self;

    [self presentViewController:imagePickerController animated:YES completion:^{

    }];
}

#pragma mark - UIimagePickerController的代理方法

#pragma mark 确认按钮
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info
{
    //获取媒体类型
    NSString * mediaType = [info objectForKey:UIImagePickerControllerMediaType];

    //判断是静态还是视频
    //如果是图片
    if ([mediaType isEqualToString:(NSString *)kUTTypeImage])
    {

        //获取用户编辑之后的图像
        UIImage * editedImage = [info objectForKey:UIImagePickerControllerEditedImage];

        [self sendNetWorking_iconWithImage:(UIImage *)editedImage];

        //将图像保存到媒体库中
        UIImageWriteToSavedPhotosAlbum(editedImage, self, @selector(image:didFinishSavingWithError:contextInfo:), NULL);

        self.imageView.image = editedImage;

        [self dismissViewControllerAnimated:YES completion:^{

        }];
    }
}

#pragma mark 取消按钮
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{

}

#pragma mark 将该图像保存到媒体库中调用的方法
- (void)image:(UIImage*)image didFinishSavingWithError:(NSError*)error contextInfo:(void*)contextInfo{

    if (!error)
    {
        NSLog(@"保存成功");
    }
    else
    {
        NSLog(@"保存失败");
    }
}

#pragma mark 发起网络请求

- (void)sendNetWorking_iconWithImage:(UIImage *)image

{
    NSString * urlStr = [NSString stringWithFormat:@"%@%@",YYIP,@"changeAvatar"];

    //除了文件
    NSDictionary * parameter = @{
                                 @"id"     : @""
                                 };

    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
    [manager POST:urlStr parameters:parameter constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

        /** 参数:
         1. data:<#(nonnull NSData *)#>       获取的UIImage对象,转化为NSData类型
         2. name:<#(nonnull NSString *)#>     与后台规定的名字一致
         3. fileName:<#(nonnull NSString *)#> 文件的名字,必须不一致,可以用当前时间作为文件名
         4. mineType:<#(nonnull NSString *)#> 文件类型
         */

        NSData *imageData = UIImageJPEGRepresentation(image, 0.3);

        [formData appendPartWithFileData:imageData name:@"avatar" fileName:@"image.png" mimeType:@"image/jpeg"];

    } success:^(AFHTTPRequestOperation *operation, id responseObject) {

        NSLog(@"responseObject: %@",responseObject);

    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

        NSLog(@"error: %@",error);
    }];

}

@end