FixedLinkMovementMethod.java

FixedLinkMovementMethod.java

public class FixedLinkMovementMethod extends LinkMovementMethod {

	@Override
	public boolean onTouchEvent(TextView widget, Spannable buffer, MotionEvent event) {
		int action = event.getAction();

		if (action == MotionEvent.ACTION_UP ||
				action == MotionEvent.ACTION_DOWN) {
			int x = (int) event.getX();
			int y = (int) event.getY();

			x -= widget.getTotalPaddingLeft();
			y -= widget.getTotalPaddingTop();

			x += widget.getScrollX();
			y += widget.getScrollY();

			Layout layout = widget.getLayout();
			int line = layout.getLineForVertical(y);
			int off = layout.getOffsetForHorizontal(line, x);

			CharacterStyle[] candidates = buffer.getSpans(off, off, CharacterStyle.class);

			ClickableSpan clickableSpan = null;

			for (CharacterStyle characterStyle : candidates) {
				if (characterStyle.getUnderlying() instanceof ClickableSpan) {
					clickableSpan = (ClickableSpan) characterStyle.getUnderlying();
					break;
				}
			}

			if (clickableSpan != null) {
				if (action == MotionEvent.ACTION_UP) {
					clickableSpan.onClick(widget);
				}
				else if (action == MotionEvent.ACTION_DOWN) {
					Selection.setSelection(buffer,
							buffer.getSpanStart(clickableSpan),
							buffer.getSpanEnd(clickableSpan));
				}

				return true;
			}
			else {
				Selection.removeSelection(buffer);
			}
		}

		return super.onTouchEvent(widget, buffer, event);
	}

}