By using below code I have implemented GridView animation in android. When you click on any image On Grid View, Image will zoom like popup. In below Adapter class I have used Animator class and I have created a zoomImageFromThumb method for zooming icon.
public class ImageAdapter extends BaseAdapter {
//Animator class
private Animator mCurrentAnimator;
private int mShortAnimationDuration;
private Context mContext;
LayoutInflater inflater;
public ImageAdapter(Context c) {
mContext = c;
}
public int getCount() {
return mThumbIds.length;
}
public Object getItem(int position) {
return mThumbIds[position];
}
public long getItemId(int position) {
return 0;
}
public View getView(final int position, View convertView, ViewGroup parent) {
final ImageView imageView;
if (convertView == null) {
imageView = new ImageView(mContext);
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
} else {
imageView = (ImageView) convertView;
}
imageView.setImageResource(mThumbIds[position]);
imageView.setTag(mThumbIds[position]);
imageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
int id = (Integer) arg0.getTag();
zoomImageFromThumb(arg0, id); //created method for animtor icon
}
});
return imageView;
}
public Integer[] mThumbIds = { R.drawable.one, R.drawable.one,
R.drawable.one, R.drawable.one, R.drawable.one,
R.drawable.one, R.drawable.one, R.drawable.one,
R.drawable.one, R.drawable.one, R.drawable.one,
R.drawable.one, R.drawable.one, R.drawable.one,
R.drawable.one, R.drawable.one, R.drawable.one,
R.drawable.one, R.drawable.one };
//
private void zoomImageFromThumb(final View thumbView, int imageResId) {
if (mCurrentAnimator != null) {
mCurrentAnimator.cancel();
}
final ImageView expandedImageView = (ImageView) ((Activity) mContext)
.findViewById(R.id.expanded_image);
expandedImageView.setImageResource(imageResId);
final Rect startBounds = new Rect();
final Rect finalBounds = new Rect();
final Point globalOffset = new Point();
thumbView.getGlobalVisibleRect(startBounds);
((Activity) mContext).findViewById(R.id.container)
.getGlobalVisibleRect(finalBounds, globalOffset);
startBounds.offset(-globalOffset.x, -globalOffset.y);
finalBounds.offset(-globalOffset.x, -globalOffset.y);
float startScale;
if ((float) finalBounds.width() / finalBounds.height() > (float) startBounds
.width() / startBounds.height()) {
// Extend start bounds horizontally
startScale = (float) startBounds.height() / finalBounds.height();
float startWidth = startScale * finalBounds.width();
float deltaWidth = (startWidth - startBounds.width()) / 2;
startBounds.left -= deltaWidth;
startBounds.right += deltaWidth;
} else {
// Extend start bounds vertically
startScale = (float) startBounds.width() / finalBounds.width();
float startHeight = startScale * finalBounds.height();
float deltaHeight = (startHeight - startBounds.height()) / 2;
startBounds.top -= deltaHeight;
startBounds.bottom += deltaHeight;
}
thumbView.setAlpha(0f);
expandedImageView.setVisibility(View.VISIBLE);
expandedImageView.setPivotX(0f);
expandedImageView.setPivotY(0f);
// Construct and run the animation of the four translation and
// scale properties
// (X, Y, SCALE_X, and SCALE_Y).
AnimatorSet set = new AnimatorSet();
set.play(
ObjectAnimator.ofFloat(expandedImageView, View.X,
startBounds.left, finalBounds.left))
.with(ObjectAnimator.ofFloat(expandedImageView, View.Y,
startBounds.top, finalBounds.top))
.with(ObjectAnimator.ofFloat(expandedImageView, View.SCALE_X,
startScale, 1f))
.with(ObjectAnimator.ofFloat(expandedImageView, View.SCALE_Y,
startScale, 1f));
set.setDuration(mShortAnimationDuration);
set.setInterpolator(new DecelerateInterpolator());
set.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mCurrentAnimator = null;
}
@Override
public void onAnimationCancel(Animator animation) {
mCurrentAnimator = null;
}
});
set.start();
mCurrentAnimator = set;
// Upon clicking the zoomed-in image, it should zoom back down to the
// original bounds
// and show the thumbnail instead of the expanded image.
final float startScaleFinal = startScale;
expandedImageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (mCurrentAnimator != null) {
mCurrentAnimator.cancel();
}
// Animate the four positioning/sizing properties in parallel,
// back to their
// original values.
AnimatorSet set = new AnimatorSet();
set.play(
ObjectAnimator.ofFloat(expandedImageView, View.X,
startBounds.left))
.with(ObjectAnimator.ofFloat(expandedImageView, View.Y,
startBounds.top))
.with(ObjectAnimator.ofFloat(expandedImageView,
View.SCALE_X, startScaleFinal))
.with(ObjectAnimator.ofFloat(expandedImageView,
View.SCALE_Y, startScaleFinal));
set.setDuration(mShortAnimationDuration);
set.setInterpolator(new DecelerateInterpolator());
set.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
thumbView.setAlpha(1f);
expandedImageView.setVisibility(View.GONE);
mCurrentAnimator = null;
}
@Override
public void onAnimationCancel(Animator animation) {
thumbView.setAlpha(1f);
expandedImageView.setVisibility(View.GONE);
mCurrentAnimator = null;
}
});
set.start();
mCurrentAnimator = set;
}
});
}
}
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