How to Animate Addition or Removal of Android ListView Rows

In iOS, there is a very easy and powerful facility to animate the addition and removal of UITableView rows, here's a clip from a youtube video showing the default animation. Note how the surrounding rows collapse onto the deleted row. This animation helps users keep track of what changed in a list and where in the list they were looking at when the data changed.

Since I've been developing on Android I've found no equivalent facility to animate individual rows in a TableView. Calling notifyDataSetChanged() on my Adapter causes the ListView to immediately update its content with new information. I'd like to show a simple animation of a new row pushing in or sliding out when the data changes, but I can't find any documented way to do this. It looks like LayoutAnimationController might hold a key to getting this to work, but when I set a LayoutAnimationController on my ListView (similar to ApiDemo's LayoutAnimation2) and remove elements from my adapter after the list has displayed, the elements disappear immediately instead of getting animated out.

I've also tried things like the following to animate an individual item when it is removed:

@Override
protected void onListItemClick(ListView l, View v, final int position, long id) {
    Animation animation = new ScaleAnimation(1, 1, 1, 0);
    animation.setDuration(100);
    getListView().getChildAt(position).startAnimation(animation);
    l.postDelayed(new Runnable() {
        public void run() {
            mStringList.remove(position);
            mAdapter.notifyDataSetChanged();
        }
    }, 100);
}

However, the rows surrounding the animated row don't move position until they jump to their new positions when notifyDataSetChanged() is called. It appears ListView doesn't update its layout once its elements have been placed.

While writing my own implementation/fork of ListView has crossed my mind, this seems like something that shouldn't be so difficult.

Thanks!

Solution 1:

Animation anim = AnimationUtils.loadAnimation(
                     GoTransitApp.this, android.R.anim.slide_out_right
                 );
anim.setDuration(500);
listView.getChildAt(index).startAnimation(anim );

new Handler().postDelayed(new Runnable() {

    public void run() {

        FavouritesManager.getInstance().remove(
            FavouritesManager.getInstance().getTripManagerAtIndex(index)
        );
        populateList();
        adapter.notifyDataSetChanged();

    }

}, anim.getDuration());

for top-to-down animation use :

<set xmlns:android="http://schemas.android.com/apk/res/android">
        <translate android:fromYDelta="20%p" android:toYDelta="-20"
            android:duration="@android:integer/config_mediumAnimTime"/>
        <alpha android:fromAlpha="0.0" android:toAlpha="1.0"
            android:duration="@android:integer/config_mediumAnimTime" />
</set>

Solution 2:

The RecyclerView takes care of adding, removing, and re-ordering animations!

This simple AndroidStudio project features a RecyclerView. take a look at the commits:

1. commit of the classic Hello World Android app
2. commit, adding a RecyclerView to the project (content not dynamic)
3. commit, adding functionality to modify content of RecyclerView at runtime (but no animations)
4. and finally...commit adding animations to the RecyclerView

Solution 3:

Take a look at the Google solution. Here is a deletion method only.

ListViewRemovalAnimation project code and Video demonstration

It needs Android 4.1+ (API 16). But we have 2014 outside.

Solution 4:

Since ListViews are highly optimized i think this is not possible to accieve. Have you tried to create your "ListView" by code (ie by inflating your rows from xml and appending them to a LinearLayout) and animate them?