완전한 tableView ios의 스크린 샷을 캡쳐하는 방법

Question

나는 30 개의 행을 가진 tableView를 가지고 있고 tableview의 상단에 View (Tableview 헤더에 없음)가 있는데, 다음을 포함하여 화면의 전체 스크린 샷을 캡처하고 싶습니다. 보기 및 tableview 모든 행을 있지만 tableview 및보기의 보이는 행을 캡처 할 수 있습니다. 도와주세요 및 사전에 감사드립니다. 여기 내 코드와 시뮬레이터의 스크린 샷이 있습니다. 주 (나는 우리가보기가 고정되어 왜있는 tableview 먹으 렴을 스크롤 할 때 그것은 또한 스크롤 때문에있는 tableview 헤더로 내보기를 원하지 않는)

- (void)viewDidLoad { 
    [super viewDidLoad]; 


    _myTableView.delegate = self; 
    _myTableView.dataSource = self; 

    UIBarButtonItem *next = [[UIBarButtonItem alloc]initWithTitle:@"Next" style:UIBarButtonItemStylePlain target:self action:@selector(nextButtonAction)]; 
    UIBarButtonItem *screenShot = [[UIBarButtonItem alloc]initWithTitle:@"Screenshot" style:UIBarButtonItemStylePlain target:self action:@selector(screenshotButtonAction)]; 

    self.navigationItem.leftBarButtonItem = screenShot; 
    self.navigationItem.rightBarButtonItem = next; 


} 

-(void)nextButtonAction 
{ 

    NextViewController *myVc = [[UIStoryboard storyboardWithName:@"Main" bundle:nil]instantiateViewControllerWithIdentifier:@"NextViewController"]; 
    NSLog(@"value of image is %@",viewImage); 
    myVc.myImage = viewImage; 
    [self.navigationController pushViewController:myVc animated:YES]; 

} 

-(void)screenshotButtonAction 
{ 

    UIView *viewToRender = self.myTableView; 
    CGPoint contentOffset = self.myTableView.contentOffset; 
    UIGraphicsBeginImageContext(viewToRender.bounds.size); 
    CGContextRef ctx = UIGraphicsGetCurrentContext(); 
     CGContextTranslateCTM(ctx, 0,-contentOffset.y); //-contentOffset.y 
    [viewToRender.layer renderInContext:ctx]; 
    viewImage = UIGraphicsGetImageFromCurrentImageContext(); 
    UIGraphicsEndImageContext(); 
    } 


- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
{ 
    return 30; 
} 
- (UITableViewCell)tableView:(UITableView)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 

    static NSString *myString = @"reused"; 
    UITableViewCell *Cell = [tableView dequeueReusableCellWithIdentifier:myString]; 
    if (Cell == nil) 
    { 
     Cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:myString]; 
    } 
    Cell.textLabel.text = [NSString stringWithFormat:@"This is Cell %ld",indexPath.row]; 
    return Cell; 
} 

Answer 1

이 코드를 변경했습니다 TableView를 이후 Getting a screenshot of a UIScrollView, including offscreen parts

func screenshot() -> UIImage{ 
var image = UIImage(); 
    UIGraphicsBeginImageContextWithOptions(self.tableView.contentSize, false, UIScreen.main.scale) 

    // save initial values 
    let savedContentOffset = self.tableView.contentOffset; 
    let savedFrame = self.tableView.frame; 
    let savedBackgroundColor = self.tableView.backgroundColor 

    // reset offset to top left point 
    self.tableView.contentOffset = CGPoint(x: 0, y: 0); 
    // set frame to content size 
    self.tableView.frame = CGRect(x: 0, y: 0, width: self.tableView.contentSize.width, height: self.tableView.contentSize.height); 
    // remove background 
    self.tableView.backgroundColor = UIColor.clear 

    // make temp view with scroll view content size 
    // a workaround for issue when image on ipad was drawn incorrectly 
    let tempView = UIView(frame: CGRect(x: 0, y: 0, width: self.tableView.contentSize.width, height: self.tableView.contentSize.height)); 

    // save superview 
    let tempSuperView = self.tableView.superview 
    // remove scrollView from old superview 
    self.tableView.removeFromSuperview() 
    // and add to tempView 
    tempView.addSubview(self.tableView) 

    // render view 
    // drawViewHierarchyInRect not working correctly 
    tempView.layer.render(in: UIGraphicsGetCurrentContext()!) 
    // and get image 
    image = UIGraphicsGetImageFromCurrentImageContext()!; 

    // and return everything back 
    tempView.subviews[0].removeFromSuperview() 
    tempSuperView?.addSubview(self.tableView) 

    // restore saved settings 
    self.tableView.contentOffset = savedContentOffset; 
    self.tableView.frame = savedFrame; 
    self.tableView.backgroundColor = savedBackgroundColor 

    UIGraphicsEndImageContext(); 

    return image 
}