iOS 用户头像选择以及上传服务器

很多时候我们都会遇到用户上传头像功能的实现,具体实现如下:

#pragma mark -tableView代理方法- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{        if (indexPath.row == 0) {           //判断手机的系统,8.0以上使用UIAlertController,一下使用UIAlertView            if (IAIOS8) {                self.modalPresentationStyle = UIModalPresentationOverCurrentContext;                UIAlertController * alert = [UIAlertController alertControllerWithTitle:nil message:nil preferredStyle:UIAlertControllerStyleActionSheet];                alert.view.tintColor = [UIColor blackColor];                //通过拍照上传图片                UIAlertAction * takingPicAction = [UIAlertAction actionWithTitle:@"拍照" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {                    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {                        UIImagePickerController * imagePicker = [[UIImagePickerController alloc]init];                        imagePicker.delegate = self;                        imagePicker.allowsEditing = YES;                        imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;                        [self presentViewController:imagePicker animated:YES completion:nil];                    }                }];                //从手机相册中选择上传图片                UIAlertAction * okAction = [UIAlertAction actionWithTitle:@"从手机相册选择" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {                    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeSavedPhotosAlbum]) {                        UIImagePickerController * imagePicker = [[UIImagePickerController alloc]init];                        imagePicker.delegate = self;                        imagePicker.allowsEditing = YES;                        imagePicker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;                        [self presentViewController:imagePicker animated:YES completion:nil];                    }                }];                UIAlertAction * cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {                }];                [alert addAction:takingPicAction];                [alert addAction:okAction];                [alert addAction:cancelAction];                [self presentViewController:alert animated:YES completion:nil];            }else{                UIActionSheet * actionSheet = [[UIActionSheet alloc]initWithTitle:nil delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:@"拍照" otherButtonTitles:@"从手机相册选择", nil];                [actionSheet showInView:self.view];            }         }}#pragma mark 调用系统相册及拍照功能实现方法- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info{    UIImage * chosenImage = info[UIImagePickerControllerEditedImage];    UIImageView * picImageView = (UIImageView *)[self.view viewWithTag:500];    picImageView.image = chosenImage;    chosenImage = [self imageWithImageSimple:chosenImage scaledToSize:CGSizeMake(60, 60)];    NSData * imageData = UIImageJPEGRepresentation(chosenImage, 0.9);//    [self saveImage:chosenImage withName:@"avatar.png"];//    NSURL * filePath = [NSURL fileURLWithPath:[self documentFolderPath]];    //将图片上传到服务器//    --------------------------------------------------------    AFHTTPRequestOperationManager * manager = [[AFHTTPRequestOperationManager alloc]initWithBaseURL:nil];    manager.requestSerializer = [AFHTTPRequestSerializer serializer];    manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json",@"text/html",@"text/javascript",@"text/json", nil];    NSString * urlString = [NSString stringWithFormat:@"%@appuser/modifyUserIcon",BASE_URL];    NSUserDefaults * userDefaults = [NSUserDefaults standardUserDefaults];    NSMutableDictionary * dict = [NSMutableDictionary dictionaryWithCapacity:1];    [dict setObject:[userDefaults objectForKey:@"user_id"] forKey:@"user_id"];    [manager POST:urlString parameters:dict constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {    //通过post请求上传用户头像图片,name和fileName传的参数需要跟后台协商,看后台要传的参数名        [formData appendPartWithFileData:imageData name:@"img" fileName:@"img.jpg" mimeType:@"image/jpeg"];    } success:^(AFHTTPRequestOperation *operation, id responseObject) {        //解析后台返回的结果,如果不做一下处理,打印结果可能是一些二进制流数据        NSError *error;        NSDictionary * imageDict = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers error:&error];        //上传成功后更新数据        self.personModel.adperurl = imageDict[@"adperurl"];        NSLog(@"上传图片成功0---%@",imageDict);    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {        NSLog(@"上传图片-- 失败  -%@",error);    }];    [picker dismissViewControllerAnimated:YES completion:^{    }];}//用户取消选取时调用- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{    [picker dismissViewControllerAnimated:YES completion:nil];}//压缩图片- (UIImage*)imageWithImageSimple:(UIImage*)image scaledToSize:(CGSize)newSize{    // Create a graphics image context    UIGraphicsBeginImageContext(newSize);    // Tell the old image to draw in this new context, with the desired    // new size    [image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];    // Get the new image from the context    UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();    // End the context    UIGraphicsEndImageContext();    // Return the new image.    return newImage;}

用户选择头像

#import "ViewController.h"@interface ViewController ()<UINavigationControllerDelegate,UIImagePickerControllerDelegate>@property (nonatomic, strong)UIImageView *myHeadPortrait;@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.    self.myHeadPortrait = [[UIImageView alloc]initWithFrame:CGRectMake(100, 100, 100, 100)];    _myHeadPortrait.backgroundColor = [UIColor magentaColor];    [self.view addSubview:self.myHeadPortrait];    [self setHeadPortrait];}//  方法：设置头像样式-(void)setHeadPortrait{    //  把头像设置成圆形    self.myHeadPortrait.layer.cornerRadius=self.myHeadPortrait.frame.size.width/2;    self.myHeadPortrait.layer.masksToBounds=YES;    //  给头像加一个圆形边框    self.myHeadPortrait.layer.borderWidth = 1.5f;    self.myHeadPortrait.layer.borderColor = [UIColor blackColor].CGColor;    /**     *  添加手势：也就是当用户点击头像了之后，对这个操作进行反应     */    //允许用户交互    _myHeadPortrait.userInteractionEnabled = YES;    //初始化一个手势    UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc]initWithTarget:self                                                                               action:@selector(alterHeadPortrait:)];    //给imageView添加手势    [_myHeadPortrait addGestureRecognizer:singleTap];}//  方法：alterHeadPortrait-(void)alterHeadPortrait:(UITapGestureRecognizer *)gesture{    /**     *  弹出提示框     */    //初始化提示框    UIAlertController *alert = [UIAlertController alertControllerWithTitle:nil message:nil preferredStyle:UIAlertControllerStyleActionSheet];    //按钮：从相册选择，类型：UIAlertActionStyleDefault    [alert addAction:[UIAlertAction actionWithTitle:@"从相册选择" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {        //初始化UIImagePickerController        UIImagePickerController *PickerImage = [[UIImagePickerController alloc]init];        //获取方式1：通过相册（呈现全部相册），UIImagePickerControllerSourceTypePhotoLibrary        //获取方式2，通过相机，UIImagePickerControllerSourceTypeCamera        //获取方法3，通过相册（呈现全部图片），UIImagePickerControllerSourceTypeSavedPhotosAlbum        PickerImage.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;        //允许编辑，即放大裁剪        PickerImage.allowsEditing = YES;        //自代理        PickerImage.delegate = self;        //页面跳转        [self presentViewController:PickerImage animated:YES completion:nil];    }]];    //按钮：拍照，类型：UIAlertActionStyleDefault    [alert addAction:[UIAlertAction actionWithTitle:@"拍照" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action){        /**         其实和从相册选择一样，只是获取方式不同，前面是通过相册，而现在，我们要通过相机的方式         */        UIImagePickerController *PickerImage = [[UIImagePickerController alloc]init];        //获取方式:通过相机        PickerImage.sourceType = UIImagePickerControllerSourceTypeCamera;        PickerImage.allowsEditing = YES;        PickerImage.delegate = self;        [self presentViewController:PickerImage animated:YES completion:nil];    }]];    //按钮：取消，类型：UIAlertActionStyleCancel    [alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]];    [self presentViewController:alert animated:YES completion:nil];}//PickerImage完成后的代理方法- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info{    //定义一个newPhoto，用来存放我们选择的图片。    UIImage *newPhoto = [info objectForKey:@"UIImagePickerControllerEditedImage"];    _myHeadPortrait.image = newPhoto;    [self dismissViewControllerAnimated:YES completion:nil];}

自定义相机界面

//自定义相机界面    _picker.showsCameraControls = NO;    UIToolbar * tool = [[UIToolbar  alloc]initWithFrame:CGRectMake(0, self.view.frame.size.height - 40, self.view.frame.size.width, 40)];    tool.barStyle = UIBarStyleBlackTranslucent;    tool.barTintColor = [UIColor greenColor];    UIBarButtonItem * cancel = [[UIBarButtonItem alloc]initWithTitle:@"取消" style:UIBarButtonItemStylePlain target:self action:@selector(touchCancel)];    cancel.width = self.view.frame.size.width/2;    UIBarButtonItem * ok = [[UIBarButtonItem alloc]initWithTitle:@"确定" style:UIBarButtonItemStylePlain target:self action:@selector(touchOk)];    ok.width = self.view.frame.size.width/2;    [tool setItems:@[cancel,ok]];    //把自定义的view添加到UIImagePickerController的layView上    _picker.cameraOverlayView = tool;#pragma mark - 取消按钮和确定按钮- (void)touchCancel{    [self.picker dismissViewControllerAnimated:YES completion:^{    }];}- (void)touchOk{    [self.picker takePicture];}