add padding,click on a pinned item，not accurate, sometimes

[LLL-Luo]

add padding, when click on a pinned item next to the right edge, it calls the click on the item behind it

the method private boolean isPinnedViewTouched(View view, float x, float y), caculate the mTouchRect.right has some problem; it should be mTouchRect.right += getPaddingLeft();