如何设置动画到画廊的特定位置

Question

I would like move to a specific position in a gallery with animation. For example, I have 100 elements in a gallery and the actual position is 0. I would like to move slowly (animated) to position 99.

I tried the following command, which seemed promising. But it does not animate :-(

gallery.setSelection(int position, boolean animate)

Any hints?

Answer 1

Maybe you have to use something like this: create animate.xml file

<set xmlns:android="http://schemas.android.com/apk/res/android"     android:shareInterpolator="true">
<translate 
    android:fromXDelta="0%p" android:toXDelta="50%p" // change this to decide the range
    android:duration="500" android:startOffset="0"/>
<translate 
    android:fromXDelta="0%p" android:toXDelta="100%p" 
    android:duration="500" android:startOffset="500"/>

and in your code use this:

Animation inFromRight =  AnimationUtils.loadAnimation(this, R.anim.animate);
gallery.startAnimation(inFromRight);
gallery.setSelection(PicPosition);  

The idea is from this link:

Android gallery slideshow animation