Android：滑出动画

Question

I have a LinearLayout which is within a RelativeLayout and aligned to the bottom of it. It's height is wrap_content. What I'm trying to do is when the user presses a button and the action that the button does is completed, I want this LinearLayout to slide out of the bottom of the screen. So when the animation is done the LinearLayout will no longer be in the View.

When the animation happens what I'm actually seeing is the LinearLayout kind of flashes for a second and then nothing happens.

Here's my XML for the Layout:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:facebook="http://schemas.android.com/apk/res-auto"
android:id="@+id/splash_layout_id"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/splash_screen_barcastr"
android:gravity="center_horizontal"
android:orientation="vertical" >


 <LinearLayout 
     android:id="@+id/splash_loginBox"
     android:layout_alignParentBottom="true"
     android:orientation="vertical"
     android:background="@drawable/message_editor_background_shadow"
     android:layout_width="match_parent"
     android:layout_height="wrap_content">

And this is my Animation:

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
    android:duration="200"
    android:fromYDelta="0%"
    android:toYDelta="100%" />
<alpha
    android:duration="200"
    android:fromAlpha="1.0"
    android:toAlpha="0.0" />

Here's where I call it:

Animation slideOutAnimation = AnimationUtils.loadAnimation(getActivity(), R.drawable.splash_login_slide_out);
            slideOutAnimation.setAnimationListener(new Animation.AnimationListener() {

                @Override
                public void onAnimationStart(Animation animation) {

                }

                @Override
                public void onAnimationRepeat(Animation animation) {

                }

                @Override
                public void onAnimationEnd(Animation animation) {

                }
            });
            //Now Set your animation
            loginContainer.startAnimation(slideOutAnimation);

Answer 1

here is the answer:

@Override
   public void onAnimationEnd(Animation animation) {
          loginContainer.setVisibility(View.GONE);
   }

after animation ended, make the the layout invisible