照相功能

1 调用相机并且上传照片的方法

#import "ViewController.h"
#import "AFNetworking.h"
@interface ViewController () <UIActionSheetDelegate,UIImagePickerControllerDelegate,UINavigationControllerDelegate>
 
@property (weak, nonatomic) IBOutlet UIImageView *imageView;
 
@end
 
@implementation ViewController
 
- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}
 
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:@"请选择照片" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"相机",@"相册", nil];
    /**
     *  window代表着最高处，所有能看到的view，后面都是window。
     *  当push相机控制器的时候，self.view就自动移除了。而当dismiss控制器的时候，因为self.view移除了，所有sheet无法寄居在view的上面，而固定在self.view.window,就可以保证，sheet一定在view视图上
     */
    [sheet showInView:self.view.window];
     
}
 
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    UIImagePickerController *ipc = [[UIImagePickerController alloc] init];
     
    ipc.delegate = self;
    ipc.isEditing = YES;  //相片是否可编辑 
    switch (buttonIndex) {
        case 0:
            if (![UIImagePickerController isSourceTypeAvailable:
                  UIImagePickerControllerSourceTypeCamera]) return;
                ipc.sourceType = UIImagePickerControllerSourceTypeCamera;
            break;
        case 1:
            if (![UIImagePickerController isSourceTypeAvailable:
                  UIImagePickerControllerSourceTypePhotoLibrary]) return;
                ipc.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
            break;
        
        default:
            return;
            break;
    }
    [self presentViewController:ipc animated:YES completion:nil];
}
 
/**
 *  选择完照片后调用的方法
 *
 *
 *  @param info   所有相片的信息都在这个字典
 */
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    [self dismissViewControllerAnimated:YES completion:nil];
     
    //从字典key获取image的地址
    UIImage *image = info[UIImagePickerControllerOriginalImage];
     
    self.imageView.image = image;
     
     
}
 
- (IBAction)upload:(UIButton *)sender {
     
    AFHTTPRequestOperationManager *mrg = [[AFHTTPRequestOperationManager alloc] init];
     
    NSMutableDictionary *params = [NSMutableDictionary dictionary];
    params[@"username"] = @"123";
 
     
     NSString *url = @"http://192.168.130.110:8080/MJServer/upload";
     
    /**
     *  上传时候调用的方法
     *
     *  params   post的参数，字典
     *  formData formData是post上去的数据
     *  name     服务器接受文件的名字
     *  fileName 文件的名字
     */
    [mrg POST:url parameters:params constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
        
        NSData *data = UIImageJPEGRepresentation(self.imageView.image, 1.0);
        [formData appendPartWithFileData:data name:@"file" fileName:@"1.jpg" mimeType:@"image/jpeg"];
         
    } success:^(AFHTTPRequestOperation *operation, id responseObject) {
         
        NSLog(@"上传成功");
         
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        
        NSLog(@"上传失败");
    }];
 
}
@end

2 手动存储相片到相册

    for (int i = 0; i<=9; i++) {
        UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"00%d.png", i]];
        UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);
        NSLog(@"%@", image);
        [NSThread sleepForTimeInterval:1];   //存储不可以过快
    }