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(50, 30, 200, 40);
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(50, 80, 200, 40);
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(10, 150, self.view.bounds.size.width - 20, 300);

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"     : @"445"
};

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