Created
December 29, 2016 15:41
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ViewHolder for swipe gesture
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static class ViewHolder extends RecyclerView.ViewHolder { | |
private Interpolator interpolator = new DecelerateInterpolator(2f); | |
private TextView nameTextView; | |
private View leftImage; | |
private View rightImage; | |
private View view; | |
public ViewHolder(View view) { | |
super(view); | |
this.view = view; | |
nameTextView = (TextView) view.findViewById(R.id.share_link_name_text); | |
leftImage = view.findViewById(R.id.left_image); | |
rightImage = view.findViewById(R.id.right_image); | |
} | |
public void setName(String name) { | |
nameTextView.setText(name); | |
} | |
public View getView() { | |
return view; | |
} | |
void handleSwipeGesture(float dX) { | |
float height = nameTextView.getHeight(); | |
float maxAbsXDiff = nameTextView.getWidth() / 2f; | |
float factor = interpolator.getInterpolation(Math.min(Math.abs(dX), maxAbsXDiff) / maxAbsXDiff); | |
float diffX = factor * height; | |
if (dX < 0) { | |
diffX *= -1; | |
} | |
nameTextView.setTranslationX(diffX); | |
if (dX < 0) { | |
rightImage.setAlpha(factor); | |
rightImage.setTranslationX((height - Math.abs(diffX)) / 2f); | |
} else { | |
leftImage.setAlpha(factor); | |
leftImage.setTranslationX(Math.abs(height - diffX) / -2f); | |
} | |
} | |
public void reset() { | |
nameTextView.setTranslationX(0); | |
rightImage.setAlpha(1f); | |
rightImage.setTranslationX(0); | |
leftImage.setAlpha(1f); | |
leftImage.setTranslationX(0); | |
} | |
} |
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