ExpandableListView Animation while closing expanded list

Question

i am trying to give animation to ExpandableListView. i did manage to give animation to expanding list when group is click with following code

               public View getChildView(final int groupPosition,
            final int childPosition, boolean isLastChild, View convertView,
            ViewGroup parent) {

        if (convertView == null) {
            vv = (RelativeLayout) getLayoutInflater().inflate(
                    R.layout.homescreen_submenu, null);
        } else {
            vv = (RelativeLayout) convertView;
        }

        animation = AnimationUtils.loadAnimation(getApplicationContext(),
                R.anim.anim_pushin);
        vv.startAnimation(animation);
        }

How can I achieve when child-collapsed, I saw sum tutorial Android Animation: Hide/Show Menu but did not succeed. Can anyone tell how to make it?

and 2) When I am scrolling while group is expanded and then if I click on 2nd group, 2 group header goes out of the screen, I can see sub menu of that.

I tried select position but didn't work.

Edit :- i also saw this http://upadhyayjiteshandroid.blogspot.in/2013/03/android-exapandlistview-animation.html but i want list to be display when click on group

Edit2 : i have added this code , but in this only last child is animated

    mainmenu.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {

        public boolean onGroupClick(final ExpandableListView parent,
                View v, final int groupPosition, long id) {
            if (groupPosition == 2) {
                Toast.makeText(Homescreen.this, "Group 2 clicked",
                        Toast.LENGTH_LONG).show();
                return true;
            }
            if (groupPosition == 3) {
                Intent nextscreen = new Intent(getApplicationContext(),
                        reminder.class);
                startActivity(nextscreen);
                finish();
                return true;
            }

            if (groupPosition == 5) {
                Toast.makeText(Homescreen.this, "Group 3 clicked",
                        Toast.LENGTH_LONG).show();
                return true;
            } else

            if (mainmenu.isGroupExpanded(groupPosition)) {

                vv.startAnimation(animationc);
                animationc.setAnimationListener(new AnimationListener() {

                    @Override
                    public void onAnimationStart(Animation animation) {
                        // TODO Auto-generated method stub
                        vv.setBackgroundColor(getResources().getColor(
                                R.color.white_trs));
                    }

                    @Override
                    public void onAnimationRepeat(Animation animation) {
                        // TODO Auto-generated method stub

                    }

                    @Override
                    public void onAnimationEnd(Animation arg0) {
                        // TODO Auto-generated method stub
                        mainmenu.collapseGroup(groupPosition);

                    }
                });

                return true;
            }
            return false;
        }
    });

score 0 · Answer 1 · answered Mar 11 '14 at 12:18

0

you have to override onGroupExapnded() method properly. check inside it that whether other Groups are expanded or not using isExpanded(), if it is make it collapsed.

answered Mar 11 '14 at 12:18

Abhishek choudhary

209
1
15

but how to animate public View getChildView ? i tried if grp.isExpanded(){ list.startanimation} but in this full list get animation effect i want only child list to be animated – user3405716 Mar 11 '14 at 12:23
which type of animations you want in child item??? can u post your child xml file. – Abhishek choudhary Mar 11 '14 at 12:24
i am not able to set animation for child list when it collapse , any animation will do – user3405716 Mar 11 '14 at 12:30

ExpandableListView Animation while closing expanded list

1 Answers1