oc获得相册照片

- (void)addImage
{
    if (CGRectGetMaxX(addImageView.frame)>SCREEN_WIDTH-CGRectGetWidth(addImageView.frame)) {
        [self ShowHUDTitle:@"只能添加三张图片" andDelay:2];
        return;
    }
    UIActionSheet *actionsheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles: @"打开照相机", @"从手机相册获取",nil];
    
    [actionsheet showInView:self.view];
}


- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (buttonIndex == actionSheet.cancelButtonIndex) {
    }
    switch (buttonIndex) {
        case 0://打开照相机
            [self takePhoto];
            break;
        case 1://打开相册
            [self localPhoto];
            break;
        default:
            break;
    }
}

-(void)takePhoto//打开相机
{
    UIImagePickerControllerSourceType sourceType = UIImagePickerControllerSourceTypeCamera;
    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
        UIImagePickerController *picker = [[UIImagePickerController alloc]init];
        picker.delegate = self;
        picker.allowsEditing = YES;
        picker.sourceType = sourceType;
        [self presentViewController:picker animated:YES completion:nil];
    }
}
-(void)localPhoto//本地相册
{
    UIImagePickerController *picker = [[UIImagePickerController alloc]init];
    picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    picker.delegate = self;
    picker.allowsEditing = YES;
    [self presentViewController:picker animated:YES completion:nil];
}


-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    NSString *type = [info objectForKey:UIImagePickerControllerMediaType];
//      当选择的类型是图片
    if ([type isEqualToString:@"public.image"]) {
//      把图片转化为NSData
        UIImage *image = info[UIImagePickerControllerEditedImage];
        NSData *data = UIImageJPEGRepresentation(image, 0.03);
        
        
//      图片的保存路径
        NSString *documentsPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
        NSFileManager *manager = [NSFileManager defaultManager];
        
//      将刚刚转化的图片放到沙盒中 并保存为png
        [manager createDirectoryAtPath:documentsPath withIntermediateDirectories:YES attributes:nil error:nil];
        NSString *imageName = [NSString stringWithFormat:@"/%@.png",[NSDate date]];
       
        [manager createFileAtPath:[documentsPath stringByAppendingString:[NSString stringWithFormat:@"%@",imageName]] contents:data attributes:nil];
        
//得到选择后沙盒的路径
        filePath = [[NSString alloc]initWithFormat:@"%@%@",documentsPath,imageName];
        NSLog(@"%@",filePath);

        [picker dismissViewControllerAnimated:YES completion:nil];
        
        [imagePathList addObject:filePath];

        
        addImageView = [[UIImageView alloc]initWithFrame:CGRectMake(CGRectGetMaxX(addImageView.frame), 0, SCREEN_WIDTH/3, SCREEN_WIDTH/3)];
        addImageView.image = image;
        addImageView.layer.borderWidth = 5;
        addImageView.layer.borderColor = [UIColor whiteColor].CGColor;
        [self.view addSubview:addImageView];
        
        CGSize size = [addressLabel.text sizeWithAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:12]}];
        addressLabel.frame = CGRectMake(10, CGRectGetMaxY(addImageView.frame), size.width+5, 20);
        
        inputView.frame = CGRectMake(0, CGRectGetMaxY(addressLabel.frame), SCREEN_WIDTH, SCREEN_HEIGHT-CGRectGetMaxY(addressLabel.frame));
      
    }
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
    [picker dismissViewControllerAnimated:YES completion:nil];
}