从上到下的大图像翻译动画Android

Question

I'm trying to develop a splash screen with a large image scrolling (Animating) from top to bottom. I dont think using ScrollView would be good since I dont want the user to scroll the image.

This is what I would like to achieve:

Answer 1

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

</set>

create this animation as slidedown.xml in an anim folder in the project and use the code below in the java file that has the view.You may change the values of "android:fromYdelta" according to your need.

myImageView.startAnimation(slidedown);

Answer 2

For example if your imageview is 250 px use :

ObjectAnimator.ofFloat(myImageView, "translationY", 250);

And in xml set on your imageview :

android:translationY="-250"