Prevent flicker

6 years ago · 2680a2d64f
parent 55bb518ad5
commit 2680a2d64f
1 changed files with 7 additions and 1 deletions
--- a/app/src/main/java/eu/faircode/email/AdapterMessage.java
+++ b/app/src/main/java/eu/faircode/email/AdapterMessage.java
@ -1399,7 +1399,13 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold

                    @Override
                    public boolean onTouchEvent(MotionEvent event) {
-                        getParent().requestDisallowInterceptTouchEvent(true);
+                        if (event.getPointerCount() == 2)
+                            getParent().requestDisallowInterceptTouchEvent(true); // zoom
+                        else if (event.getAction() == MotionEvent.ACTION_MOVE) {
+                            int range = computeVerticalScrollRange() - computeVerticalScrollExtent();
+                            if (range > 0) // scroll
+                                getParent().requestDisallowInterceptTouchEvent(true);
+                        }
                        return super.onTouchEvent(event);
                    }