sPFApp/src/main/java/it/polimi/spf/app/view/TagsViewer.java
public void addTag(String tag) {
		TagBubble tb = new TagBubble(getContext());
		tb.setText(tag);
		tb.setEditable(editable);
		tb.setOnRemoveTagListener(bubbleClickListener);
		tags.add(tag.toString());
		addView(tb);
	}
public void addTag(String tag) {
		TagBubble tb = new TagBubble(getContext());
		tb.setText(tag);
		tb.setEditable(editable);
		tb.setOnRemoveTagListener(bubbleClickListener);
		tags.add(tag.toString());
		addView(tb);
	}
Adds and shows a new tag.

@param tag