Created
August 20, 2014 18:00
-
-
Save ademar111190/dc988c8d899dae0193f7 to your computer and use it in GitHub Desktop.
Playing with ItemAnimator in the new Android RecyclerView
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import android.animation.Animator; | |
import android.animation.AnimatorSet; | |
import android.animation.ObjectAnimator; | |
import android.support.v7.widget.RecyclerView; | |
import android.view.View; | |
import android.view.animation.AccelerateDecelerateInterpolator; | |
import java.util.ArrayList; | |
import java.util.List; | |
import mobi.porquenao.toolkit.core.animation.AnimatorListener; | |
public class MyItemAnimator extends RecyclerView.ItemAnimator { | |
List<RecyclerView.ViewHolder> mViewHolders = new ArrayList<RecyclerView.ViewHolder>(); | |
@Override | |
public void runPendingAnimations() { | |
if (!mViewHolders.isEmpty()) { | |
int animationDuration = 300; | |
AnimatorSet animator; | |
View target; | |
for (final RecyclerView.ViewHolder viewHolder : mViewHolders) { | |
target = viewHolder.itemView; | |
target.setPivotX(target.getMeasuredWidth() / 2); | |
target.setPivotY(target.getMeasuredHeight() / 2); | |
animator = new AnimatorSet(); | |
animator.playTogether( | |
ObjectAnimator.ofFloat(target, "translationX", -target.getMeasuredWidth(), 0.0f), | |
ObjectAnimator.ofFloat(target, "alpha", target.getAlpha(), 1.0f) | |
); | |
animator.setTarget(target); | |
animator.setDuration(animationDuration); | |
animator.setInterpolator(new AccelerateDecelerateInterpolator()); | |
animator.setStartDelay((animationDuration * viewHolder.getPosition()) / 10); | |
animator.addListener(new AnimatorListener() { | |
@Override | |
public void onAnimationEnd(Animator animation) { | |
mViewHolders.remove(viewHolder); | |
} | |
}); | |
animator.start(); | |
} | |
} | |
} | |
@Override | |
public boolean animateRemove(RecyclerView.ViewHolder viewHolder) { | |
return false; | |
} | |
@Override | |
public boolean animateAdd(RecyclerView.ViewHolder viewHolder) { | |
viewHolder.itemView.setAlpha(0.0f); | |
return mViewHolders.add(viewHolder); | |
} | |
@Override | |
public boolean animateMove(RecyclerView.ViewHolder viewHolder, int i, int i2, int i3, int i4) { | |
return false; | |
} | |
@Override | |
public void endAnimation(RecyclerView.ViewHolder viewHolder) { | |
} | |
@Override | |
public void endAnimations() { | |
} | |
@Override | |
public boolean isRunning() { | |
return !mViewHolders.isEmpty(); | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment