public void onPageScrolled(int position, float positionOffset,

int positionOffsetPixels) {

System.out.println("position:"+position+",positionOffset:"+positionOffset+",positionOffsetPixels:"+positionOffsetPixels);

LinearLayout.LayoutParams lp = (LayoutParams) iv_tabLine.getLayoutParams();

/*if(currerPagerIndex == 0 && position == 0 ){ // 0->1

lp.leftMargin = (int) (sCreen1_3 * positionOffset + currerPagerIndex * sCreen1_3);

}else if(currerPagerIndex == 1 && position == 0 ){ //1->0

lp.leftMargin = (int) (currerPagerIndex * sCreen1_3 + sCreen1_3 * (1-positionOffset));

}else if(currerPagerIndex == 1 && position == 1){ //1->2

lp.leftMargin = (int) (currerPagerIndex * sCreen1_3 + sCreen1_3 * positionOffset);

}else if(currerPagerIndex == 2 && position == 1){ //2->1

lp.leftMargin = (int) (currerPagerIndex * sCreen1_3 + sCreen1_3 * (1-positionOffset));

}*/

lp.leftMargin = (int) (sCreen1_3 * position + sCreen1_3 * positionOffset);

iv_tabLine.setLayoutParams(lp);

}

老师，可以这样写吗？运行结果一样，不知这样常不常用。