package com.doumee.lib_coremodel.view.recyclerview;
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/**
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* Created by MSI on 2018/5/31.
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*/
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import android.graphics.Rect;
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import android.view.View;
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import androidx.recyclerview.widget.RecyclerView;
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/**
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* 设置item间距
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*/
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public class SpacesDecorationWithCount extends RecyclerView.ItemDecoration {
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private int space;//间隔
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private int count;//数目
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private int topSpace;
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private int bottomSpace;
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private int type=0;
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public SpacesDecorationWithCount(int space, int count) {
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this.space = space;
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this.count=count;
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}
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public SpacesDecorationWithCount(int space, int count, int type) {
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this.space = space;
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this.count=count;
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this.type=type;
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}
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public SpacesDecorationWithCount(int space, int count, int topSpace, int bottomSpace) {
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this.space = space;
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this.count = count;
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this.topSpace = topSpace;
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this.bottomSpace = bottomSpace;
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}
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@Override
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public void getItemOffsets(Rect outRect, View view,
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RecyclerView parent, RecyclerView.State state) {
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outRect.bottom=bottomSpace;
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outRect.top=topSpace;
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// Add top margin only for the first item to avoid double space between items
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/*if (parent.getChildPosition(view) == 0)
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outRect.top = space;*/
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float f = 1.0f/(count-1);
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int space50 = (int) (space*f);
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int space150 = space - space50;
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int sp = (int) (space * 0.5f);
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int sp1 = space150 - space50;
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if(type==0){
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int po=parent.getChildAdapterPosition(view)%count;
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if (po == 0){
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outRect.right = space150;
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}else if(po==count-1){
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outRect.left = space150;
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}else {
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outRect.left = space50;
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outRect.right = sp1;
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}
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}else {
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outRect.left=sp;
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outRect.right=sp;
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}
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}
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}
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