Visibility of image button not working for lollipop devices and above

Question

I have an ImageButton that is by default invisible :

  <ImageButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/anchor"
    android:src="@drawable/anchor"
    android:elevation="6dp"
    android:layout_below="@+id/rl_row_progress_bar"
    android:layout_centerHorizontal="true"
    android:visibility="invisible"/>

On the activity I change It's attribute with this code :

 if(lastPotition == 1){
    mImageButton.setVisibility(View.GONE);
 } else{
    mImageButton.setVisibility(View.VISIBLE);
 }

The problem is that in pre lollipop the Image Button works fine but in APIs 21 and 22 doesn't work

This is the declaration of the ImageButton:

private ImageButton mImageButton;
mImageButton =(ImageButton)v.findViewById(R.id.anchor); //anchor

Thank you for the help.

Have you set breakpoints to verify that you set correct visibility to `imageButton`? — Mikhail, Jul 16 '15 at 15:41
Eventually i have found the problem , because i don't have lollipop device i use emulator and the checking of visibility is inside a if (scrollState == SCROLL_STATE_IDLE) so because i have a mouse and i use the scroll button of the mouse the scroll state doesn' t working but if i scroll my list view with the mouse like touching the screen it's working — VasFou, Jul 16 '15 at 15:46

score 0 · Answer 1 · edited May 23 '17 at 11:59

I had this issue but later i have discovered that this is related to the settings in a lollipop device.

Here are the three options described here: Lollipop Notification setVisibility() Does Not Work?

Show all notification content makes all notifications (regardless of visibility) effectively public.
Hide sensitive notification content respects the new visibility types.
Don't show notifications at all will make all notifications effectively secret.

Visibility of image button not working for lollipop devices and above

1 Answers1