調用系統的相機和相冊

    UIActionSheet *as = [[UIActionSheet alloc]initWithTitle:nil
                                                   delegate:self
                                          cancelButtonTitle:@"取消"
                                     destructiveButtonTitle:@"打開照相機"
                                          otherButtonTitles:@"從手機相冊獲取", nil
                         ];
    as.tag=1;

    [as showInView:self.view];

//actionSheet協議
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    switch (buttonIndex) {
        case 0:{
            if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
                UIImagePickerController *ipc = [[UIImagePickerController alloc]init];
                [ipc setSourceType:UIImagePickerControllerSourceTypeCamera];
                ipc.delegate = self;
                ipc.allowsEditing = YES;
                [self presentViewController:ipc animated:YES completion:nil];
            }else{
                NSLog(@"這設備沒相機");
            }
        }
            break;
        case 1:{
            UIImagePickerController *ipc = [[UIImagePickerController alloc]init];
            [ipc setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
            ipc.delegate = self;
            ipc.allowsEditing = YES;
            [self presentViewController:ipc animated:YES completion:nil];
        }
            break;
    }
    
}

//選擇完成
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
    
    UIImage*image=[info objectForKey:@"UIImagePickerControllerEditedImage"];
    self.sendimg=[NSMutableArray arrayWithObjects:image, nil];
    
    [self dismissViewControllerAnimated:YES completion:^{
        
    }];
}
//取消選擇圖片
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{
    [self dismissViewControllerAnimated:YES completion:^{
    }];
}