Take a screenshot of RecyclerView in FULL length

RecyclerviewFullScreenshot.java

/*
        1. create a new NestedScrollView
        2. add it to recyclerview's parent
        3. remove recyclerview from its parent "it's important to add it to a new parent"
        4. add recyclerview to nestedscrollview
        5. take screenshot of nestedscrollview
        6. add recyclerview to its main parent.
  */


nestedScreenShot = new NestedScrollView(getContext());
       
         constraintLayout.removeView(recyclerView);
         
         ConstraintLayout.LayoutParams params =new 
    
         Constraints.LayoutParams(viewGroup.LayoutParams.MATCH_PARENT,
    
         ViewGroup.LayoutParams.MATCH_PARENT);
          
         nestedScreenShot.setLayoutParams(params);
         
         constraintLayout.addView(nestedScreenShot);
          
         nestedScreenShot.addView(recyclerView, params);
        
         new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {
    
                    nestedScreenShot.removeView(recyclerView);
                    constraintLayout.removeView(nestedScreenShot);
                    nestedScreenShot = null;
                    constraintLayout.addView(recyclerView, params);
    
    
                }
                }, 8000);
          takescreenshotOfNested(nestedScreenShot);
    

   
//This method will return screenshot of nestedscrollview
         
                
                
           private Bitmap takescreenshotOfNested(View u) {
            
            NestedScrollView viewNested = null;
                
            ScrollView viewScroll = null;
                  
            if (u instanceof NestedScrollView) {
                     
           
            viewNested = (NestedScrollView) u;
                 
         
           } else if (u instanceof ScrollView) {
                  
          
             viewScroll = (ScrollView) u;
                
           }
                
                    Bitmap bitmap;
                    if (viewNested != null) {
                        viewNested.setDrawingCacheEnabled(false);
                        viewNested.invalidate();
                        viewNested.getChildAt(0).setDrawingCacheEnabled(false);
                        viewNested.getChildAt(0).invalidate();
                
                        bitmap = Bitmap.createBitmap(viewNested.getChildAt(0).getWidth(),
                                viewNested.getChildAt(0).getHeight() + 8, Bitmap.Config.ARGB_8888);
                        Canvas canvas = new Canvas(bitmap);
                        canvas.drawColor(activity.getResources().getColor(R.color.layout_background));
                        viewNested.draw(canvas);
                    } else {
                
                        try {
                
                            viewScroll.setDrawingCacheEnabled(false);
                            viewScroll.invalidate();
                        } catch (Exception ignored) {
                        }
                        viewScroll.getChildAt(0).setDrawingCacheEnabled(false);
                        viewScroll.getChildAt(0).invalidate();
                
                        bitmap = Bitmap.createBitmap(viewScroll.getChildAt(0).getWidth(),
                                viewScroll.getChildAt(0).getHeight() + 8, Bitmap.Config.ARGB_8888);
                        Canvas canvas = new Canvas(bitmap);
                        canvas.drawColor(activity.getResources().getColor(R.color.layout_background));
                        viewScroll.draw(canvas);
                
                    }
                    return bitmap;
                
                }


// don't forget to recycle the bitmap after using it

is it work?