private void updateParams(int x, int y, int gravity, ViewGroup.LayoutParams params) {
int horizontalGravity = gravity & Gravity.HORIZONTAL_GRAVITY_MASK;
switch (horizontalGravity) {
case Gravity.LEFT:
setLeftMargin(params, (int) (x - mBackground.getPaddingLeft()));
break;
case Gravity.CENTER_HORIZONTAL:
setLeftMargin(params, (int) (x - mBackground.getCenterX()));
break;
case Gravity.RIGHT:
setLeftMargin(
params, (int) (x - mBackground.getPaddingLeft() - mBackground.getRadius() * 2));
break;
default:
setLeftMargin(params, (int) (x - mBackground.getPaddingLeft()));
break;
}
int verticalGravity = gravity & Gravity.VERTICAL_GRAVITY_MASK;
switch (verticalGravity) {
case Gravity.TOP:
setTopMargin(params, (int) (y - mBackground.getPaddingTop()));
break;
case Gravity.CENTER_VERTICAL:
setTopMargin(params, (int) (y - mBackground.getCenterY()));
break;
case Gravity.BOTTOM:
setTopMargin(params, (int) (y - mBackground.getPaddingTop() - mBackground.getRadius() * 2));
break;
default:
setTopMargin(params, (int) (y - mBackground.getPaddingTop()));
break;
}
setLayoutParams(params);
}
/** @return The radius of the button. */
public int getRadius() {
return mBackground.getRadius();
}