Android why setVisibility View GONE or setVisibility View INVISIBLE do not work

Question

I want my DatePicker and the button to be invisible in the begining  And when I press my magic button I want to setVisibility View Visible    The problem here is when I setVisibility View GONE  or setVisibility View INVISIBLE  nothing changes and the component is still visible   final DatePicker dp2    DatePicker  findViewById R id datePick2   final Button btn2    Button  findViewById R id btnDate2    dp2 setVisibility View GONE   dp2 setVisibility View INVISIBLE   btn2 setVisibility View GONE   btn2 setVisibility View INVISIBLE    btn2 setOnClickListener new View OnClickListener         public void onClick View arg0            TextView txt2    TextView  findViewById R id txt2           txt2 setText  You selected     dp2 getDayOfMonth                        dp2 getMonth     1          dp2 getYear

User · Answer

Today I had a scenario  where I was performing following  myViewGroup setVisibility View GONE    Right on the next frame I was performing an if check somewhere else for visibility state of that view  Guess what  The following condition was passing  if myViewGroup getVisibility      View VISIBLE           this  if  was fulfilled magically    Placing breakpoints you can see  that visibility changes to GONE  but right on the next frame it magically becomes VISIBLE  I was trying to understand how the hell this could happen  Turns out there was an animation applied to this view  which internally caused the view to change it s visibility to VISIBLE until finishing the animation  public void someFunction                 TransitionManager beginDelayedTransition myViewGroup                myViewGroup setVisibility View GONE      If you debug  you ll see that myViewGroup indeed changes its visibility to GONE  but right on the next frame it would again become visible in order to run the animation  So  if you come across with such a situation  make sure you are not performing an if check in amidst of animating the view  You can remove all animations on the view via View clearAnimation

User · Answer

Because you  set   visibility either true or false   try that  setVisible 0  to visible true    and setVisible 4  to visible false

User · Answer

I see quite a few things wrong  For starters  you don t have your magic button defined and there is no event handler for it   Also you shouldn t use   dp2 setVisibility View GONE   dp2 setVisibility View INVISIBLE      Use only one of the two  From Android documentation      View GONE This view is invisible  and it doesn t take any space for   layout purposes        View INVISIBLE This view is invisible  but it still   takes up space for layout purposes    In your example  you are overriding the View GONE assignment with the View INVISIBLE one     Try replacing   final DatePicker dp2   new DatePicker this    with   DatePicker dp2    DatePicker  findViewById R id datePick2       Similarly for other widgets       public void onCreate Bundle savedInstanceState            super onCreate savedInstanceState            LinearLayout ll   new LinearLayout this           ll setOrientation LinearLayout VERTICAL            final DatePicker dp2   new DatePicker this           final Button btn2   new Button this           final Button magicButton   new Button this           final TextView txt2   new TextView TestActivity this            dp2 setVisibility View GONE           btn2 setVisibility View GONE           btn2 setText  set Date             btn2 setOnClickListener new View OnClickListener                 public void onClick View arg0                    txt2 setText  You selected                         dp2 getDayOfMonth            dp2 getMonth     1                               dp2 getYear                                        magicButton setText  Magic Button            magicButton setOnClickListener new View OnClickListener                   public void onClick View arg0                    dp2 setVisibility View VISIBLE                   btn2 setVisibility View VISIBLE                                  ll addView dp2       ll addView btn2       ll addView magicButton       ll addView txt2        setContentView ll

User · Answer

First see your code    dp2 setVisibility View GONE   dp2 setVisibility View INVISIBLE   btn2 setVisibility View GONE   btn2 setVisibility View INVISIBLE     Here you set both visibility to same field so that s the problem  I give one sample for that sample demo

User · Answer

View GONE makes the view invisible without the view taking up space in the layout  View INVISIBLE makes the view just invisible still taking up space  You are first using GONE and then INVISIBLE on the same view Since  the code is executed sequentially  first the view becomes GONE then it is overridden by the INVISIBLE type still taking up space  You should add button listener on the button and inside the onClick   method make the views visible  This should be the logic according to me in your onCreate   method   Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity setting        final DatePicker dp2    DatePicker  findViewById R id datePick2       final Button btn2    Button  findViewById R id btnDate2       final Button btn3    Button  findViewById R id btnVisibility        dp2 setVisibility View INVISIBLE       btn2 setVisibility View INVISIBLE        bt3 setOnClickListener new View OnCLickListener          Override     public void onClick View view                dp2 setVisibility View VISIBLE           bt2 setVisibility View VISIBLE                  I think this should work easily  Hope this helps

User · Answer

View GONE This view is invisible  and it doesn t take any space for layout purposes   View INVISIBLE This view is invisible  but it still takes up space for layout purposes   dp2 setVisibility View GONE   dp2 setVisibility View INVISIBLE   btn2 setVisibility View GONE   btn2 setVisibility View INVISIBLE

User · Answer

This is for someone who tried all the answers and still failed  Extending pierre s answer  If you are using animation  setting up the visibility to GONE or INVISIBLE or invalidate   will never work  Try out the below solution      btn2 getAnimation   setAnimationListener new Animation AnimationListener           Override      public void onAnimationStart Animation animation                 Override      public void onAnimationEnd Animation animation             btn2 setVisibility View GONE            btn2 clearAnimation                 Override      public void onAnimationRepeat Animation animation

User · Answer

In my case I found that simply clearing the animation on the view before setting the visibility to GONE works   dp2 clearAnimation    dp2 setVisibility View GONE     I had a similar issue where I toggle between two views  one of which must always start off as GONE - But when I displayed the views again  it was displaying over the first view even if setVisibility GONE  was called  Clearing the animation before setting the view to GONE worked

User · Answer

You can think it as a CSS style visibility  amp  display    lt div style  visibility visible  display block  gt      This is View VISIBLE   Content is displayed normally   lt  div gt    lt div style  visibility hidden  display block  gt      This is View INVISIBLE   Content is not displayed  but div still takes up place  but empty   lt  div gt    lt div style  display none  gt      This is View GONE   Container div is not shown  you can say the content is not displayed   lt  div gt

User · Answer

I was also facing the same issue  if suppose that particular fragment is inflated across various screens  there is a chance that the visibility modes set inside the if statements to not function according to our needs as the condition might have been reset when it is inflated a number of times in our app  In my case  I have to  change the visibility mode in one fragment child fragment  based on a button clicked in another fragment parent fragment   So I stored the buttonClicked boolean value in a variable of parent fragment and passed it as a parameter to a function in the child fragment  So the visibility modes in the child fragments is changed based on that boolean value that is received via parameter  But as this child fragment is inflated across various screens  the visibility modes kept on resetting even if I make it hidden using View GONE  In order to avoid this conflict  I declared a static boolean variable in the child fragment and whenever that boolean value is received from the parent fragment I stored it in the static variable and then changed the visibility modes based on that static variable in the child fragment  That solved the issue for me

User · Answer

I had the same problem once  Calling invalidate after changing visibility almost always works  but in some cases it doesn t  I had to cheat and set the background to a transparent image and set the text to  quot  quot

[java] Android: why setVisibility(View.GONE); or setVisibility(View.INVISIBLE); do not work

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